期刊
GLOBAL CHANGE BIOLOGY
卷 26, 期 6, 页码 3325-3335出版社
WILEY
DOI: 10.1111/gcb.15001
关键词
climate; conservation agriculture; crop yield; meta-analysis; soil organic carbon; win-win outcome
资金
- Natural Science Foundation of China [41530533, 41573069]
- National Key R&D Program of China [2017YFE0104600]
- BBSRC [BB/N013484/1] Funding Source: UKRI
- NERC [NE/P019455/1] Funding Source: UKRI
Conservation agriculture has been shown to have multiple benefits for soils, crop yield and the environment, and consequently, no-till, the central practice of conservation agriculture, has rapidly expanded. However, studies show that the potential for carbon (C) sequestration in no-till farming sometimes is not realized, let alone the ability to maintain or improve crop yield. Here we present a global analysis of no-till-induced changes of soil C and crop yield based on 260 and 1,970 paired studies; respectively. We show that, relative to local conventional tillage, arid regions can benefit the most from conservation agriculture by achieving a win-win outcome of enhanced C sequestration and increased crop yield. However, more humid regions are more likely to increase SOC only, while some colder regions have yield losses and soil C loss as likely as soil C gains. In addition to site-specific characteristics and management, a careful assessment of the regional climate is needed to determine the potential benefits of adopting conservation agriculture.
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