Assessing the returns to water harvesting: A meta-analysis.
作者： Jetske A. Bouma , Seema S. Hegde , Ralph Lasage
DOI: 10.1016/J.AGWAT.2015.08.012
关键词: Climate change adaptation 、 Yield (finance) 、 Rainwater harvesting 、 Crop yield 、 Wet season 、 Environmental science 、 Work (electrical) 、 Agroforestry 、 Investment (macroeconomics) 、 Agricultural productivity
摘要: This study presents the results of a meta-analysis peer reviewed literature on water harvesting technologies, with focus crop yield impacts in semi-arid Africa and Asia. Main aim analysis is to assess whether significantly improves yields, type technology quality rainy season correlate change yield. We find that yields significantly, relative impact largest low rainfall years. Smallholder farmers may still be reluctant invest harvesting, however, as regions agricultural productivity returns investment are limited. Finally, our review suggests there only limited number studies has systematically evaluated technologies. More work needed strengthen scientific knowledge base.
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