Riparian buffers in tropical agriculture: Scientific support, effectiveness and directions for policy

Riparian buffers in tropical agriculture: Scientific support, effectiveness and directions for policy
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热带农业的河岸缓冲区:科学支持、有效性和政策方向

DOI:
10.1111/1365-2664.13280
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发表时间:
2018
影响因子:
5.7
通讯作者:
Luke S
Luke S
中科院分区:
环境科学与生态学1区
文献类型:
--
作者:
Luke S

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有一个薄弱的证据基础,支持有效管理热带农业内的河岸生态系统。河岸带缓冲区是指河流沿岸的非耕地地带,各国保护河岸带缓冲区的政策比较模糊,且差异很大。通过快速的证据评估,我们发现河岸带缓冲区对热带景观的水文、水质、生物多样性和某些生态系统功能都是有益的。然而,对连通性、碳储存和减排的影响仍然研究不足。河岸功能介导的缓冲区宽度和栖息地质量,但明确的阈值建议是罕见的。政策含义。普遍适用的一刀切宽度标准不足以在所有情况下提供所有河岸功能。有必要制定针对具体情况的河岸缓冲区分配、恢复和管理指南,以最大限度地减少热带农业生物多样性和生态系统功能的持续退化。
There is a weak evidence base supporting the effective management of riparian ecosystems within tropical agriculture. Policies to protect riparian buffers—strips of non‐cultivated land alongside waterways—are vague and vary greatly between countries.From a rapid evidence appraisal, we find that riparian buffers are beneficial to hydrology, water quality, biodiversity and some ecosystem functions in tropical landscapes. However, effects on connectivity, carbon storage and emissions reduction remain understudied. Riparian functions are mediated by buffer width and habitat quality, but explicit threshold recommendations are rare.Policy implications. A one‐size fits all width criterion, commonly applied, will be insufficient to provide all riparian functions in all circumstances. Context‐specific guidelines for allocating, restoring and managing riparian buffers are necessary to minimise continued degradation of biodiversity and ecosystem functioning in tropical agriculture.
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