期刊
GLOBAL CHANGE BIOLOGY BIOENERGY
卷 15, 期 4, 页码 462-477出版社
WILEY
DOI: 10.1111/gcbb.13028
关键词
biochar co-compost; climate change mitigation; dairy manure management; nitrogen leaching; soil greenhouse gas; soil health
Organic amendments, such as compost and biochar, can improve soil properties, enhance carbon storage, and increase plant biomass. In this field study, the researchers compared the impacts of dairy manure co-composted with biochar, dairy manure compost, and biochar alone on soil properties and processes. The results showed that all three treatments significantly increased soil water holding capacity and total plant biomass. Biochar co-compost and biochar application also resulted in lower greenhouse gas emissions and reduced nutrient leaching compared to compost application alone. These findings suggest that biochar co-composting can optimize organic resource recycling for climate change mitigation and agricultural productivity.
Organic amendments, such as compost and biochar, mitigate the environmental burdens associated with wasting organic resources and close nutrient loops by capturing, transforming, and resupplying nutrients to soils. While compost or biochar application to soil can enhance an agroecosystem's capacity to store carbon and produce food, there have been few field studies investigating the agroecological impacts of amending soil with biochar co-compost, produced through the composting of nitrogen-rich organic material, such as manure, with carbon-rich biochar. Here, we examine the impact of biochar co-compost on soil properties and processes by conducting a field study in which we compare the environmental and agronomic impacts associated with the amendment of either dairy manure co-composted with biochar, dairy manure compost, or biochar to soils in a winter wheat cropping system. Organic amendments were applied at equivalent C rates (8 Mg C ha(-1)). We found that all three treatments significantly increased soil water holding capacity and total plant biomass relative to the no-amendment control. Soils amended with biochar or biochar co-compost resulted in significantly less greenhouse gas emissions than the compost or control soils. Biochar co-compost also resulted in a significant reduction in nutrient leaching relative to the application of biochar alone or compost alone. Our results suggest that biochar co-composting could optimize organic resource recycling for climate change mitigation and agricultural productivity while minimizing nutrient losses from agroecosystems.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据