Homaira Afroz Himu1*, Asif Raihan2
1Department of Veterinary and Animal Sciences, University of Rajshahi, Rajshahi 6205, Bangladesh.
2Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia.
*Corresponding author: Homaira Afroz Himu Department of Veterinary and Animal Sciences, University of Rajshahi, Rajshahi 6205, Bangladesh.
Received: August 06, 2024
Accepted: August 09, 2024
Published: August 14, 2024
Citation: Homaira A Himu. Raihan A. (2024) “An overview of integrating the ecological footprints of livestock production with forestry-based strategies.” Journal of Veterinary Medicine and Science, 1(2); DOI: 10.61148/JVMS/006
Copyright: © 2024 Homaira Afroz Himu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Livestock production, being a long-standing and highly important human endeavor, plays a crucial role in meeting the worldwide need for human sustenance and other animal-derived goods, while also aiding in the alleviation of poverty. Nevertheless, it is crucial to consider the ecological consequences of livestock animals. More than 60% of the biomass extracted from the Earth each year to support human activity is specifically allocated to this sector, which raises questions regarding its long-term viability. Furthermore, the livestock sector is responsible for an estimated 14.5% of global greenhouse gas emissions, in addition to significant water and fertilizer consumption that has been recorded in recent years. Moreover, the escalating quantity of excrement generated by intensive animal agriculture gives rise to apprehensions regarding its proper disposal and the possibility for water contamination. Pasture and rangeland deterioration is a major factor in soil erosion. Various strategies are now being investigated to mitigate the ecological consequences of livestock farming, but one potentially sustainable solution could be found in the realm of forestry. Forests are essential in mitigating livestock emissions as they absorb billions of metric tons of carbon dioxide annually, serving as a critical carbon sink. Moreover, the variety and maturity of forests have an impact on the process of carbon sequestration. Forests play a crucial role in mitigating climate change through their ability to minimize soil erosion and regulate the water cycle. Therefore, sustainable forest management is crucial because forests offer several advantages, such as economic, environmental, and social benefits, while also capturing and storing carbon. This article provides an analysis of the present influence of contemporary livestock production and explores the possibility of reducing its effects using forestry-based approaches.
1. Introduction:
The sheep is the earliest known domesticated livestock animal, utilized by our ancestors as a source of food, with its domestication occurring approximately 11,000 years ago [1]. This process of domestication occurred prior to the cultivation of plants by our ancestors [2]. Various more livestock species are currently raised worldwide to provide humans with food, hide, and milk. Currently, the cattle industry is thriving and well-structured, making it one of the most successful industries globally [3,4]. The World Bank research states that meat production increased from approximately 45 million tons in 1980 to 134 million tons in 2002, experiencing a three-fold growth over a span of 22 years [5]. Similarly, the latest projection for beef output anticipates a total of around 360 million tons, indicating a 1.2 percent growth compared to the estimated figures for 2021 [6]. By 2050, it is projected that the global population would reach 10 billion. Expanding animal production guarantees a sufficient food supply for the continuously increasing population. Nevertheless, the adverse effects of "animal agriculture" on environmental health are now becoming apparent and pose a growing concern. Livestock production has both advantages and disadvantages when it comes to social fairness, economic growth, and natural resources [5]. Livestock production has a negative impact on the global temperature, biodiversity, and the quality of natural resources such as air, water, and soil [7]. The observed impacts can be attributed to the altered biogeochemical cycles of carbon, nitrogen, and phosphorous [8,9]. The detrimental effects of cattle production on soil health [10,11], global warming [12–14], air quality [15,16], water pollution [7], and environmental stability [3] have been well documented. The environmental impact of livestock can be observed through its influence on multiple parameters, such as carbon and nutrient cycling, greenhouse gas emissions (GHGs), nutrient losses, water and land usage, and, ultimately, soil quality.
It is crucial to acknowledge the harmful effects of livestock production on the environment and investigate practical measures to reduce them. One potential approach [17] to decreasing the large-scale keeping and breeding of animals is to reduce meat consumption. Nevertheless, it is important to note that a change in diet should not solely rely on nutritional considerations, as there are other complex reasons behind an individual's food choices [18]. Therefore, it is essential to prioritize the development of therapies that are applicable on a worldwide scale and promote long-term sustainability. Forests, crucial for sustaining life, generate oxygen, rendering them important. For example, a model created in Turkey calculated that a forest management strategy centered on timber might yield a total of 2.6 million tons of oxygen over a span of 100 years [19]. Furthermore, forests have a crucial function in preserving natural resources, mitigating various forms of pollution (such as air, water, soil, noise, etc.), controlling biogeochemical cycles, and serving as habitats for numerous species of plants and animals [20]. Prior research has demonstrated the efficacy of urban trees in Beijing, China in eliminating more than 772 tons of PM10 (particulate matter with a diameter less than 10 µm) and storing around 0.2 million tons of carbon biomass [21]. Previous studies conducted in the UK have shown that effective forestry management methods can effectively reduce soil erosion, hence reducing undesirable increases in turbidity and sedimentation in watercourses [22].
As far as we know, there is currently no publication available that specifically addresses the relationship between afforestation and its possible influence on the environmental footprint of farm animals. The majority of studies concentrate on either afforestation or the environmental effects of farm animals. This review aims to elucidate the adverse impacts of livestock on diverse biodiversity resources and the environment, while also examining potential remedies through the utilization of forests. Moreover, this analysis offers innovative perspectives on the impacts of animal production on many ecological domains, such as the atmosphere, global water resources, and land utilization.
2. Environmental Impacts of Livestock Production :
2.1. GHG Emissions from Livestock Production
According to the existing literature, there are six primary gases that are often recognized as greenhouse gases (GHGs): perfluoro carbons, sulfur hexafluoride, hydrofluorocarbons, carbon dioxide, methane, and nitrous oxide [23]. Out of them, more than 50% of the greenhouse effect is specifically attributed to the latter three [24]. The sun's energy interacting with these gases produces the greenhouse effect, since their capacity to trap and hold heat is a primary focus of researchers [25]. After receiving infrared radiation, carbon dioxide molecules undergo vibrational motion and produce their own radiation, which is then absorbed by another molecule of a greenhouse gas [26]. The absorption-emission-absorption cycle helps to retain heat near the Earth's surface [23]. Similarly, methane and nitrous oxide molecules have the ability to vibrate as they absorb heat, as a result of their structures [27]. Although greenhouse gases are necessary for maintaining life on Earth, the ongoing rise in their levels is expected to have harmful effects [28]. Consequently, the most recent sessions of the Intergovernmental Panel on Climate Change (IPCC) determined that countries should not only evaluate their total emissions, but also devise strategies to decrease future emissions [29]. Methane and nitrous oxide were identified as the most significant greenhouse gases in the animal production sector.
Methane poses a huge threat because of its high global warming potential, estimated to be 25 times greater than that of carbon dioxide [30,31]. Various categories of animals, production areas, and systems have different levels of impact on total methane emissions [30]. Ruminants are the primary contributors to methane emissions in modern agriculture, responsible for over one-third of all human-caused methane emissions worldwide [32]. Their substantial contribution can be due to their huge proportion of animal biomass and distinctive digestive mechanism. Ruminants often produce methane through two main pathways [33]. Prior research has shown that the amount of methane emissions produced by forage crops is negligible, accounting for less than 5% and may therefore be ignored [32]. Although there is proof of methane emissions resulting from micro anaerobic soil conditions during grazing, soils with improved drainage can effectively mitigate this process [34]. Hence, the primary pathway responsible for the majority of emissions is intestinal fermentation [35]. This leads to the release of methane gas through the process of flatulence and eructation [36]. The mechanism of methane synthesis during enteric fermentation is intricate and involves microorganisms as key participants [32–35,37]. Ruminants possess the capacity to break down fibrous plant matter, in contrast to monogastric animals, mostly because of their stomach, which is composed of four separate compartments [38]. The rumen, a spacious anaerobic chamber in the digestive system of cattle, is responsible for the fermentation of plant materials [39–43]. Methane is generated by methanogens, which are bacteria found in the rumen [44–46]. These microorganisms possess distinctive traits that categorize them as archaea. Methanogens carry out the last stage of methanogenesis, a process that generates methane by combining hydrogen and carbon dioxide [47]. The synthesis of methane is affected by biological parameters in the rumen, including pH and microbial composition, which are associated with the type of diet given to the animals [42,48–50]. In pastoral systems, the exclusive reliance on natural pasture as a feed source leads to increased methane emissions [51]. Intensive systems, which provide animals with meals that are high in grains and soybeans, result in reduced methane emissions per animal [52]. Nevertheless, when taking into account the animal population in each system, intensive systems exhibit greater emissions on the whole. The major contributors to agricultural methane emissions are countries such as Brazil, China, and the United States, which heavily depend on intensive systems [53].
Ruminant animals also contribute to methane emissions through their feces [54]. More precisely, the breakdown of manure without the presence of oxygen and the utilization of lagoons and holding tanks to handle the liquid portion of manure are specific regions where methane is produced [55]. Improperly handled manure can result in not just foul odors and unhygienic conditions, but also adverse effects. Manure, a substrate consisting of carbs, proteins, and lipids, is a complex material that readily undergoes fermentation [56]. During anaerobic digestion, organic matter derived from manure undergoes a series of hydrolysis and fermentation reactions, leading to the production of alcohols, fatty acids, hydrogen, and carbon dioxide [57]. In enteric fermentation, the two aforementioned components are utilized to produce methane, as ruminant manure contains bacteria that are capable of methanogenesis [58]. Nevertheless, the results are considerably reduced because of the moderate anaerobic biodegradability, which falls below the 50% threshold. Specifically, the rate of lignin complex decomposition in cattle dung can be further reduced, contingent upon the quantity of residual lignin complexes derived from the diet [59]. Temperature is a determinant that can impact the process of methanogenesis from manure. To be more exact, lower temperatures can have a substantial impact on reducing methane emissions [60]. When the surrounding temperatures drop below the ideal range for the activity of methanogens, the synthesis of methane slows down considerably [61,62]. Prior research has demonstrated a correlation between temperature and a reduction in the pace at which organic matter in manure decomposes, which in turn has a direct effect on the overall production of methane [63,64]. Therefore, it was suggested that in regions with temperate and cold climates, methane emissions could be reduced inexpensively by regularly extracting and storing it outside [65]. Methane can undergo oxidation through the activity of methane-oxidizing bacteria (MOB), which have been identified in solid manure [66]. Prior studies have emphasized the need of maintaining manure in a solid form in order to increase the effectiveness of MOB (methanotrophic bacteria), as they may contribute to the reduction of methane emissions [67]. It is important to note that manure with a significant amount of water and a high buffer capacity can improve anaerobic digestion [68]. This phenomenon is observed in lagoons and holding tanks. While these facilities are being filled, there is a rapid introduction of additional slurry material, which, depending on its chemical properties, can enhance methanogenic activity.
Thankfully, the IPCC has devised a mechanism to calculate and possibly control methane emissions from liquid manure [69]. This methodology employs equations of varying complexity, which are classified into tiers. So far, three tiers have been established. Estimating methane emissions from livestock necessitates the establishment of animal subcategories, annual populations, and, for more advanced methodologies, the measurement of feed consumption and characterization. The Tier 1 methodology for measuring manure production from livestock relies on a predetermined emission factor per unit of volatile solid, which is determined by the specific livestock category and the kind of manure storage facility. The Tier 2 approach, which is more sophisticated, necessitates the inclusion of further factors. This tier is distinct to individual countries and takes into account the influence of the interplay between manure management methods and livestock category during both excretion and storage. The Tier 3 methodology surpasses country-specific approaches and use a measurement-based method to quantify emission components. This strategy is considered the most precise type of estimating, while its adoption is limited due to the substantial amount of input required.
Nitrous oxide is a significant greenhouse gas, being the third largest emitter after carbon dioxide and methane [70]. The rising levels of nitrous oxide in the atmosphere have raised concerns because of its impact on the regulation of stratospheric ozone and the balance of planetary radiation [71]. Previous studies have also demonstrated the role of nitrous oxide in the creation of acid rain [72]. Human activities, such as land use, fossil fuel burning, wastewater treatment, and agriculture, contribute to the release of nitrous oxide emissions [73]. Agricultural and soil management activities were shown to be the primary contributor to nitrous oxide emissions in the United States [74]. Manure is the main source of nitrous oxide emissions in livestock production, however its overall contribution is low [75]. Nitrous oxide is formed as a result of the storage and management of manure, which involves both aerobic and anaerobic reactions, as well as alternate nitrification and denitrification processes [55]. Nitrogen undergoes a conversion from its oxidized form to its gaseous state when manure is applied and handled, which also leads to the release of nitrous oxide [76]. Nitrification is a process that converts ammonia into nitrate through the intermediate step of nitrite. This reaction occurs in two steps and is facilitated by two types of microorganisms: ammonia oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) [77]. Although ammonia-oxidizing archaea have been found in manure and soil during composting, their specific contribution to the process of nitrification has not been determined yet [78]. Conversely, denitrification encompasses a diverse range of microorganisms, including fungi, archaea, and particularly heterotrophic bacteria, which play a direct role [79]. Denitrification can take place in environments with either high or low levels of oxygen, depending on its availability. Microorganisms have the potential to generate nitrous oxide through various pathways [55]. Hence, the presence of oxygen gradients can impact the pace at which nitrous oxide is produced, both during storage and after the application of manure in the field [80]. Moreover, there exists a connection between chemical gradients and the quantities of nitrous oxide emissions from manure, as stated in reference [81]. Decomposer activity can have a significant impact on the formation of chemical gradients, namely leading to the release of carbon dioxide and ammonia near the interfaces between air and liquid. This can result in a decrease in alkalinity and pH levels. The main reason for this is the acidifying process of ammonia oxidation, which can lead to reduced rates of nitrification and denitrification [80]. However, it can also result in a higher ratio of nitrite to nitrogen in the process of denitrification [82]. Overall, the existing information indicates that the influence of livestock on atmospheric nitrous oxide levels is mostly associated with the presence of manure. Moreover, net emissions are influenced by both the content of manure and the prevailing weather conditions. Hence, it is imperative to focus on the characteristics of manure and the surrounding environmental factors in order to devise suitable strategies for reducing negative impacts.
2.2. Water and Land Use Impacts of Livestock Production:
The growing demand for livestock-derived goods not only leads to effects on greenhouse gas emissions and nutrient cycles but also exerts significant strain on natural resources such as land and water [8]. Direct connections between livestock production and the availability of natural resources are caused by factors such as the development of feed crops on a large scale, grazing land, and water usage [83]. Due to the limited and crucial role of water as a necessary resource for sustaining life on Earth, the total water consumption associated with livestock production systems is a subject that continues to be discussed and disputed [84]. On a global scale, there is a limited amount of freshwater available, making up only approximately 2.5% of the total water reserves. A large component of these resources is not easily accessible since they are stored in glaciers and permanent ice formations [85]. Addressing water use in animal production is crucial for promoting sustainable agriculture and environmental conservation. The livestock business uses water not just for direct consumption by animals for hydration, but also for several other purposes such as product processing and supporting the growth of feed crops [86]. Although the increased water needs are substantial, the primary factors are still the consumption of water directly and the growth of feed crops. Prior studies have conducted a quantitative evaluation of water utilization in the livestock industry, revealing insights into both direct and indirect water consumption [87,88]. The water footprint of feedlot beef cattle varied between 3.3 and 221 L H2Oe kg−1 of live weight, as reported in a study [89]. During the entire life cycle of a single broiler, a minimum of 1 liter of water is necessary to maintain homeostasis [90]. However, when temperatures increase, the broiler may require even more water [91-95]. Swine production in confined and dry feeding conditions had a water turnover rate of 120 mL per kilogram during the growth phase and 80 mL per kilogram of body weight for non-lactating adult pigs [96]. Direct water consumption in livestock production is a significant contributor to overall water use. This is mainly because physiological functions including growth, productivity, reproduction, and temperature regulation require large volumes of water. The cultivation of livestock feed necessitates a significant amount of water, making it the primary driver of water use in the business [97]. With the rising demand for animal products, there will be a corresponding increase in water consumption due to the necessity for a larger livestock population. Currently, there is no universally accepted procedure for accurately determining the precise quantity of evapotranspired water required to produce 1 kilogram of feedstuff. Additionally, there are discrepancies in the amounts of feedstuff that can be generated per cubic meter of water. Research has indicated that the production system may create between 0.5 and 8 kg of dry matter feed per cubic meter of water [98]. To be more precise, forage maize, which is a commonly used animal feed, has been predicted to produce approximately 2.9 to 3.7 kg of dry matter per cubic meter [99]. There are significant variations in livestock production systems across different regions, with varying degrees of intensification. This highlights the importance of carefully examining the relationships between livestock and water, as well as implementing treatments that are tailored to individual locations. This method is essential for guaranteeing the long-term and efficient utilization of water resources.
Livestock predominantly consumes food products that may otherwise be utilized for human consumption. Furthermore, there is a current agreement that the manufacturing of feedstuff redirects cultivable land away from food production [100]. Therefore, it is essential to achieve a proper equilibrium between the direct consumption of plant production and the use of feedstuff in order to ensure global food availability. Livestock production has a direct impact on land usage through the cultivation of feed crops, the use of grazing land, and, to a lesser degree, the conversion of land. The majority of agricultural land is allocated to livestock feed production, which is approximately double the amount allocated to growing crops. Regrettably, most animal production methods exhibit a protein conversion efficiency of less than 0.5, which consequently affects the amount of land required to sustain these systems [100]. The efficiency of milk and egg production is predicted to be around 0.25 [101], whereas lamb and beef have the lowest efficiencies at 0.06 and 0.04, respectively [102]. Taking grain-based protein directly would be more advantageous for humans than taking animal protein from animals that are fed with grain [103]. Although there is a growing interest in utilizing inedible feed for animal production, the utilization of land to generate these items would not necessarily reduce competition if crops were cultivated instead [98]. In the context of livestock production, inedible feed refers to substances that are not suitable for human consumption but are still valuable as sources of nutrition for animals [104,105]. They include, but are not limited to, straws, hays, hulls, crop leftovers, as well as certain weeds and invasive plants. These materials are mostly used in ruminant nutrition because it is preferable to limit the use of potentially edible feed resources by livestock to those that have the highest daily nutrient needs [104]. Thus, the intensive cultivation of crops required for animal sustenance leads to the loss of habitats and a decrease in biodiversity.
Grazing land, commonly known as pastureland or grazing pasture, comprises of naturally occurring or produced plants that serves as a nourishment for ruminant animals [106]. Grazing land, similar to feed crops, exerts a substantial influence on land utilization. Managed grazing encompasses roughly 33 million square kilometers of the Earth's land surface, making it the largest and most widespread form of land use [107]. To mitigate the environmental impact, it is crucial to assess the magnitude and duration of plant consumption by farm animals in a particular region. The continuous presence of cattle on pastureland might impede the normal production of biomass, leading to vegetation degradation [108]. Furthermore, specific plant species are frequently selected by animals for grazing because of their nutritional composition and taste, resulting in detrimental effects on biodiversity and the disturbance of ecosystems [109]. Alterations are observed in the abundance, extent, and arrangement of life forms. These changes in structure are frequently linked to the invasion of plant species, water drainage, erosion, and modifications in the biochemical properties of the soil [110]. Grasslands has an inherent capacity to sequester substantial quantities of carbon dioxide. Recent studies have shown that having a variety of plant species in an ecosystem helps to increase the amount of organic carbon in the soil. This is because it promotes the growth of plant material below the ground and enhances the contribution of dead microbial material to the storage of organic carbon in the soil [111–113]. In contrast, extensive animal grazing has been shown to greatly decrease the synthesis of soil organic carbon (SOC) through plant and microbial processes [110]. Eze, et al. [114] found that grazing generally leads to a 15% loss in soil organic carbon (SOC) stocks worldwide. The largest reductions are observed in tropical locations, whereas temperate climates experience the smallest decreases. Similarly, the act of sheep grazing has a generally more pronounced effect on soil organic carbon (SOC) compared to cow grazing. This reduction in SOC primarily takes place in the top layer of soil [115]. These data indicate that the presence of livestock species, the availability of water, and the temperature are factors that complicate the effects of grazing on the storage of soil organic carbon (SOC).
The correlation between livestock production and land conversion is apparent based on the existing literature. Land conversion refers to the process of converting natural ecosystems, such as forests or grasslands, into agricultural areas [116]. The key catalyst for the conversion of land for livestock purposes is the ongoing increase of these crops and pastures. Indeed, there has been a significant rise in the global demand for animal products. Meat output has nearly quadrupled from 1963 to 2015, while milk production has more than doubled, going from 340 to 818 Mt within the same time frame [117]. Consequently, additional acreage is required to fulfill these growing demands. Not only do we need more feedstuffs, but we also need to construct a substantial amount of infrastructure to support the additional herds [118]. This has resulted in the depletion of forests in regions like the Amazon, where the cultivation of soybeans is rapidly spreading [119]. Therefore, the conventional method of converting land for animal production is not environmentally sustainable. Instead, efforts should be directed towards enhancing efficiency by increasing product output while minimizing resource inputs.
3. Livestock Production's Environmental Footprint and Forestry:
Forests are commonly defined as regions that include a substantial number of trees and distinct features, including a canopy cover of more than 10% and trees that are taller than 5 meters [120]. To be more precise, the Food and Agriculture Organization of the United Nations (FAO) in Rome, Italy, provides a definition of a forest as an area that is larger than 0.5 hectares and possesses particular features [121]. Afforestation is commonly regarded as a means to mitigate environmental problems caused by agriculture and animal production, as it is linked to beneficial outcomes such as the cycling of nutrients. Global forests annually sequester billions of metric tons of carbon dioxide, a process that would necessitate a substantial economic subsidy to mimic through an equal carbon sink [122]. These forests absorb carbon dioxide from the atmosphere and transform it into carbohydrates, resulting in the gradual increase of tree biomass and its storage in the soil [123–126]. The process referred to as sequestering and storage of carbon is used to mitigate climate change [127,128]. Forests play a crucial role in absorbing greenhouse gases from the environment [129]. Therefore, despite the continuous emission of greenhouse gases from animal production, it is possible to counterbalance these emissions through carbon sequestration.
The idea of sequestration is highly intricate [130] and necessitates specific information regarding compositions, as the diversity within the forest ecosystem has a substantial impact on carbon sequestration [131–134]. Older trees have the capacity to retain a greater amount of carbon from the atmosphere compared to younger trees [135-137]. The capacity for carbon sequestration also differs based on the specific characteristics of the forest, shrubs, agroforests, and other organisms, as well as the soil composition within the area [134,138,139]. There is currently a worldwide focus on nature-based solutions for mitigating climate change. This emphasizes the importance of forests in removing carbon dioxide from the atmosphere and storing carbon in the soil. Hence, it is imperative to contemplate afforestation and augmenting forest cover by replanting, alongside the administration and conservation of current forests to enhance their capacity for carbon storage. In addition, it is crucial to prioritize initiatives aimed at decreasing emissions caused by deforestation resulting from cattle production [144–146]. Furthermore, the development of renewable energy sources and wood-based goods as substitutes for fossil fuels should be given high importance in the next decades [147–150].
Forests might potentially alleviate the harmful effects of cattle on climate change by reducing soil erosion and regulating the water cycle. Trees are essential for enhancing the biophysical characteristics of soil, promoting the development of healthier ecosystems, and facilitating sustainable land use practices [151,152]. Tree roots, when they grow and extend underground, form a network that holds soil particles together, so limiting erosion and enhancing the stability of the soil [153]. The root network also enhances the soil's water-holding capacity by establishing routes for water infiltration, so lowering surface runoff and improving water retention [154]. In addition, the leaves, branches, and other organic material that fall from trees contribute to a natural layer of mulch on the floor of the forest [155]. This mulch serves as a protective layer, mitigating the effects of rainfall on the soil surface and avoiding soil compaction [156]. As time passes, the breakdown of these organic components adds important nutrients to the soil, making it more fertile [157]. Trees also enhance soil microbial activity, facilitating the development of a varied population of organisms that assist in the processes of nutrient cycling and decomposition [158]. The primary recognition of water cycle regulation is attributed to the phenomenon of transpiration. Transpiration is the process by which trees emit water vapor into the atmosphere through their stomata [159]. Subsequently, the moisture condenses into clouds, resulting in the occurrence of precipitation. Transpiration has a dual effect on the environment. It not only lowers the temperature of the air in the vicinity but also influences the weather patterns in the immediate area [159]. Forests play a crucial role in maintaining water balance by efficiently catching, storing, and releasing water. This helps prevent floods and ensures a steady flow of water to rivers, streams, and other water bodies. These benefits extend to both ecosystems and human communities downstream. Hence, the biophysical impacts of trees on the soil and water cycle facilitate erosion management, water preservation, and nutrient cycling, rendering forests indispensable elements of resilient and sustainable landscapes.
Forests play a vital role in reducing the environmental impact of livestock by absorbing carbon dioxide released by animals and serving as carbon sinks. Forests play an active role in controlling erosion and enhancing the physical structure of the soil.
Although there is compelling evidence that forests can help alleviate the adverse environmental impacts of livestock production, it is essential to use sustainable management practices simultaneously. Forests are strategically controlled to maximize their productivity, which is divided into two main categories: timber and non-timber products. Additionally, forests provide essential services such as safeguarding against water and wind erosion, capturing carbon dioxide from the atmosphere, and offering cultural and social advantages [161,162]. The desire for a wide range of benefits from forests can result in the deterioration of resources due to excessive extraction of products, which harms their ability to provide services and leads to the unsustainable use of forest resources and the benefits derived from them [163,164]. Sustainable forest management refers to the systematic approach of ensuring the ongoing provision of economic, environmental, and social advantages [165]. It is necessary to monitor and gather data on the environmental, economic, and social effects [166]. Forests store carbon in live biomass, deadwood, and forest soil. By practicing sustainable forest management, we may maximize their ability to enhance the diversity of natural forests, promote biomass growth, and contribute to local socio-economic development. The age of a tree directly affects its biomass, which is a crucial element in determining the ability for carbon sequestration. The larger the diameter of the tree at breast height, the greater its capacity for storing a significant quantity of carbon. This indicates that the ability of trees to store carbon through their growth is restricted at small geographical scales [173].
The correlation between forest and livestock production is closely tied to the evaluation of the carbon footprint (CFP). Carbon footprint (CFP) measures the amount of greenhouse gas emissions produced within defined limits, and is highly significant for persons, organizations, processes, products, or events [174,175]. It has a crucial impact on decreasing greenhouse gas emissions. Organizations can gain insight into their carbon footprint (CFP) by comprehending and quantifying the emissions generated by human activities [176]. Industries, especially processing firms, can use this knowledge to identify and improve phases in their production process that contribute to high carbon emissions. This allows them to match their output with carbon neutrality targets, as stated in programs such as the Green Deal [177]. Establishing standards and assessment frameworks for carbon emissions in manufacturing processes is essential in this setting [178]. As mentioned earlier, forests are notable for their effectiveness in absorbing and storing carbon dioxide, making them valuable carbon sinks [124]. It is essential to introduce tree species that can withstand future temperature conditions, with a focus on nature-based solutions to address climate change [179]. It is essential to take into account the additional advantages, such as biodiversity and livelihoods, that come with promoting income diversification and supporting livelihoods [180]. Management decisions should be informed by the goal of enhancing forest capacity for carbon sequestration through diversification [181,182]. By integrating this information, forests have the potential to surpass greenhouse gas emissions from animal agriculture, making a substantial contribution to the overall decrease in the carbon footprint [175]. Promoting investments in forestry is seen as a practical approach to managing carbon emissions [183].
4. Conclusions:
With the world's population growing rapidly and the demand for animal products on the rise, it is crucial to tackle the environmental consequences of livestock production on our planet. The rapid expansion of animal production has had a significant negative impact on the environment, despite its important role in meeting human food requirements. The environmental consequences of livestock production are a complex issue, encompassing greenhouse gas emissions, water consumption, land transformation, soil degradation, and the responsible utilization of limited resources like water and land for feed crops. The detrimental effect on biodiversity, encompassing alterations in vegetation, loss of habitats, and disturbances in ecosystems, emphasizes the pressing need to discover feasible solutions.
This concise analysis emphasizes a potential approach to decrease the ecological consequences of cattle production, namely the adoption of afforestation and sustainable forestry management techniques. Forests, often referred to as "the earth's lungs," possess the astonishing capacity to absorb carbon dioxide and serve as crucial reservoirs for carbon. By actively promoting afforestation and reforestation, it is feasible to offset the emissions generated by cattle production, resulting in a reduction in the overall carbon footprint. Forests offer a multitude of benefits, including the prevention of erosion, regulation of the water cycle, promotion of biodiversity, and enhancement of soil fertility. Nevertheless, the effectiveness of these programs relies on the implementation of sustainable forest management methods. It is crucial to achieve a healthy equilibrium between fulfilling the requirements for timber and non-timber forest products, while simultaneously safeguarding the ecological functions of forests. This necessitates an all-encompassing methodology that takes into account the intricate interconnections among tree species, forest biodiversity, and the capacity for carbon storage. Moreover, adopting nature-based solutions can greatly contribute to worldwide endeavors to mitigate climate change.
To summarize, effectively dealing with the environmental difficulties presented by cattle production requires a fundamental change in our attitude. By supporting and promoting sustainable forestry practices and acknowledging the vital role of forests in reducing the environmental impact, we can establish a more sustainable future. At this critical juncture between environmental preservation and agricultural growth, the choices we make in the present will have lasting consequences for future generations. Preserving our earth and promoting a harmonious coexistence among mankind, cattle, and nature is a shared obligation that we must all uphold. In order to meet the demands of mankind while maintaining the balance of our ecosystems, it is crucial to conduct strategic interventions and commit to sustainable practices.
Author Contributions: Conceptualization, H.A.H. and A.R.; methodology, H.A.H.; software, C.M.N. H.A.H.; validation H.A.H.; writing—original draft preparation, H.A.H.; writing—review and editing, A.R.; visualization, H.A.H. and A.R.; supervision, A.R. All authors have read and agreed to the published version of the manuscript.
Funding: This research received no external funding.
Acknowledgments: Not applicable.
Conflicts of Interest: The authors declare no conflict of interest.