Silvopasture (silva is forest in Latin) or wood pasture is the practice of integrating trees, forage, and the grazing of domesticated animals in a mutually beneficial way. It utilizes the principles of managed grazing, and it is one of several distinct forms of agroforestry. If done correctly, silvopastures can count as nature-based solutions to climate change.
Properly managed silvopasture (grazed woodland) can increase overall productivity and long-term income due to the simultaneous production of tree crops, forage, and livestock. It can provide environmental benefits, and has been practiced in many parts of the world for centuries.
Benefits
Potential for climate change adaptation Climate change adaptation has garnered more importance in UNFCCC negotiations in the 2020s as opposed to previous strategies, when mitigation was given more focus. Silvopasture systems which integrate trees and other woody plants along with crops, forage and livestock are a highly sustainable strategy that has huge adaptive capacity, besides its mitigation potential. Open pasture systems, on the other hand, which is often a consequence of widespread deforestation can exacerbate issues such as reduced water availability and nutrient imbalances in soils, leading to negative effects on ecosystems, local climates, and communities—challenges that are further intensified by climate change.
Silvopasture systems influence microclimatic conditions, offering advantages over open pastures and a suitable ‘middle ground’ solution compared to forests in the context of climate change adaptation. By retaining partial tree cover, silvopastures create a more moderated environment that helps mitigate temperature extremes and optimize soil conditions. This offers less stressful conditions for the grazers as compared to the open pastures improving its feed and water intake, reproductive health, milk yields, fitness, and longevity.
The integration of trees in silvopastures provide shade, which reduces the intensity of photosynthetically active radiation (PAR) compared to open pastures, while still allowing more light than dense forests. This balance supports diverse plant growth and improved forage quality. One study measured air temperatures near the soil surface (0.25 m) to be consistently cooler in silvopastures than in open pastures, with reductions of up to 7%, while soil temperatures at depths of 5–10 cm are also significantly lower in silvopastoral systems compared to open pastures.
Silvopastures moderate soil moisture levels, with trees contributing to better water retention in some seasons through shading, less wind and reduced evaporation. Studies found that during winter and spring, soil moisture levels in silvopastures are slightly lower than forests but higher than open pastures, while in summer, they provide a balance, preventing excessive drying as seen in open pastures.
These microclimatic adaptations—cooler temperatures, moderated light levels, and improved soil moisture—enhance the resilience of silvopastures to climate stressors such as heatwaves and droughts, which in turn leads to a more robust agricultural system.
Grazing controls understory vegetation and reduces the accumulation of fuel biomass, lowering the risk of forest fires. This leads to the maintenance of profitability and biodiversity and reduction / avoidance of carbon release due to fire when compared to an open pasture and forest. This problem is of particular importance in fire-prone regions like Southern Europe.Rois-Díaz, M., Mosquera-Losada, R., & Rigueiro-Rodríguez, A. (2006). Biodiversity indicators on silvopastoralism across Europe (Vol. 21). Joensuu, Finland: European Forest Institute.
A study with a focus on the US suggests that welfare of cows benefit from a Silvopasture ecosystem, as they are shown to have improvement in physiological response to heat stress, increased grazing time and decreased standing time (resting and ruminanting) when compared to cows in the conventional pasture grazing system. This means that a silvopasture system allows livestock to better adapt to climate change.
Besides providing better ecosystem services like water quality and wildlife habitat, silvopasture systems provide farmers and producers with diversified income streams from timber, forage, and livestock products. This enhances resilience to market fluctuations and climate variability - which is enhanced by climate change - making the system highly attractive to smaller or resource-limited producers.
Climate change mitigation Silvopastoral systems act as carbon sinks that sequester more carbon than monoculture forests or pastures with similar density. Their reduced reliance on machinery also lowers greenhouse gas emissions, making them more sustainable than traditional land-use systems. In contrast, open pastures without tree cover tend to emit more greenhouse gases due to higher soil exposure and less climate buffering.
Studies show that carbon uptake (negative emissions) is lowest in open pastures, intermediate in silvopastures, and highest in reference forests. This pattern is consistent across systems like tree alley-cropping and orchard-hay systems. Open pastures have higher CO2 fluxes due to factors like soil respiration and warmer temperatures. Removing canopy trees in open pastures further increases these fluxes by reducing evapotranspiration and increasing soil moisture.
Silvopastures also help retain more soil carbon than open pastures. While converting forests to pastures initially increases soil carbon, this gain is short-lived due to higher temperatures and faster decomposition. After a few years, soil carbon in open pastures matches that of forests. Silvopastures, with their mix of trees and pastures, may help maintain soil carbon over time, although significant changes often take decades to occur.
Additionally, converting forests to open pastures raises soil nitrogen levels and decreases the carbon-to-nitrogen ratio. While silvopastures show more balanced nitrogen levels, open pastures can increase nitrous oxide (N2O) emissions, a potent greenhouse gas. Overall, silvopastures provide dual climate benefits: they sequester more carbon and reduce harmful nitrogen emissions, making them an effective strategy for climate resilience.
Other benefits Silvopasture systems create diverse habitats, supporting biodiversity and ecosystem resilience. By preserving native plants, they help local wildlife and maintain traditional agroforestry knowledge. These systems attract pollinators and beneficial insects, improving crop productivity and ecosystem health. Proper selection of diverse tree and forage species is key to enhancing biodiversity both above and below ground.
Incorporating a mix of native tree species in silvopastures not only boosts economic viability but also increases biodiversity, ensuring the success and productivity of the system. Trees offer various benefits like providing forage, improving soil health, offering timber, aiding in erosion control, and supporting livestock health. When selecting trees, it's essential to choose species that complement grazing activities. Fast-growing species like black locust, willow, and mulberry are ideal as they integrate well with grazing. Additionally, indigenous tree species can attract plenty of insect species, which in turn will lead to more bird species, hence enhancing biodiversity and making the natural ecosystem more resilient. Livestock can also consume unharvested fruits, helping to control pests and diseases.
Silvopastoral systems can yield better forage during droughts due to the adapted microclimate. Forage species are carefully chosen based on soil type, climate, grazing tolerance, shade tolerance and attraction to certain species. Shade-tolerant grasses like bahiagrass, bermudagrass, tall fescue, orchardgrass, and ryegrass, along with legumes such as subterranean clover and Sericea lespedeza, are commonly used in silvopastures. These species ensure optimized productivity, livestock nutrition, and ecosystem resilience.
Implementation challenges While silvopasture has great potential for climate change mitigation, adaptation, and sustainable agriculture, it requires proper planning, financial support, and technical knowledge. In the paper "Thinning forests or planting fields? Producer preferences for establishing silvopasture", published in 2021, the authors conducted a study of Silvopasture establishment preferences among livestock producers surveyed in Virginia (US). The survey indicated that only 8% were interested in planting trees (48% were very uninterested), while about 25% were very interested in thinning woodlands for silvopastures. Forfeited pasture was a constraint for planting for about half (48%) of respondents, while 27% considered thinning a means to expand pasture acres. Some of the most common challenges and barriers to silvopasture adoption include policy and regulatory hurdles, land tenure, lack of knowledge and awareness, economic constraint and cultural change.
Knowledge A primary barrier to wider adoption of silvopasture systems is the limited knowledge and awareness among farmers and landowners of alternative agroforestry practices. Farmers need to be equipped with knowledge of tree-livestock interactions, pasture rotation, and soil health management for a successful implementation of a silvopasture. Livestock can trample or overgraze young trees and requires protective measures like fencing or controlled grazing. Trees may also compete with grasses for light, water, and nutrients, potentially reducing pasture productivity if not managed properly.Blanchet, K., & Hodge, S. (2020). Silvopasture: Final SARE Report. Sustainable Agriculture Research and Education (SARE). Retrieved from https://projects.sare.org/wp-content/uploads/Silvopasture-Final-SARE-report.pdf Choosing the wrong tree species could result in slower growth, provide poor shade distribution, and leave toxic effects on livestock. Additionally, fire risks can be a concern in silvopastoral systems, particularly in dry climates where trees and accumulated biomass may increase flammability. Without proper firebreaks, species selection, and management strategies, silvopasture could inadvertently contribute to wildfire hazards rather than mitigating them.
To overcome these challenges, well-structured education and extension programs are essential to provide farmers with the necessary knowledge and technical support. Training initiatives, demonstration farms, and knowledge-sharing networks could help bridge the gap, ensuring that farmers can confidently implement silvopasture systems in a way that maximizes productivity while mitigating risks.
Economic