Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | DOI10.1088/1748-9326/ab8b10 |
How much can sustainable intensification increase yields across South Asia? a systematic review of the evidence | |
Meha Jain; Divya Solomon; Hagan Capnerhurst; Anthony Arnold; Alice Elliott; Andrew T Kinzer; Collin Knauss; Maya Peters; Brett Rolf; Ari Weil; Charlotte Weinstein | |
2020-07-31 | |
发表期刊 | Environmental Research Letters |
出版年 | 2020 |
英文摘要 | Food security will become increasingly challenged over the coming decades, and sustainable intensification is often touted as an ideal way to increase yields while limiting negative environmental impacts. Yet, the extent to which sustainable intensification can increase yields remains unclear. We systematically reviewed the literature to assess the extent to which sustainable intensification can increase yields across South Asia, a region that is expected to face some of the greatest food security challenges over the coming decades. We found that yield gains from sustainable intensification interventions were heterogeneous, and that the average yield gain across all studi es was 21%. Residue retention and the use of organic fertilizers were, in particular, associated with significant and positive yield gains, though the use of organic fertilizers was not always profitable, likely due to large subsidies provided for mineral fertilizers across South Asia. Our work also revealed biases in the current sustainable intensification literature, with research clustered in highly productive, irrigated, and commodity cropping systems, which do not represent large portions of agricultural systems across South Asia. Our results highlight that sustainable intensification interventions should play an important role in increasing food production across South Asia, but yield gains from these interventions are modest compared to estimated yield gaps across the region. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/286574 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Meha Jain,Divya Solomon,Hagan Capnerhurst,et al. How much can sustainable intensification increase yields across South Asia? a systematic review of the evidence[J]. Environmental Research Letters,2020. |
APA | Meha Jain.,Divya Solomon.,Hagan Capnerhurst.,Anthony Arnold.,Alice Elliott.,...&Charlotte Weinstein.(2020).How much can sustainable intensification increase yields across South Asia? a systematic review of the evidence.Environmental Research Letters. |
MLA | Meha Jain,et al."How much can sustainable intensification increase yields across South Asia? a systematic review of the evidence".Environmental Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
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