Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/ab45ad |
Can smallholder farmers buffer rainfall variability through conservation agriculture? On-farm practices and maize yields in Kenya and Malawi | |
Boillat, Sebastien1; Jew, Eleanor K. K.2; Steward, Peter R.3; Speranza, Chinwe Ifejika1; Whitfield, Stephen3; Mkwambisi, David4; Kiteme, Boniface5; Wambugu, Grace5; Burdekin, Oliver J.6; Dougill, Andrew J.3 | |
2019-11-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2019 |
卷号 | 14期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; England; Malawi; Kenya |
英文摘要 | Reduced tillage, permanent ground cover and crop diversification are the three core pillars of Conservation Agriculture (CA). We assess and compare on-farm effects of different practices related to the three pillars of CA on maize yields under ENSO-driven rainfall variability in Kenya and Malawi. Reduced tillage practices increased yields per hectare by 250 kg on average in Malawi under below-average rainfall conditions and by 700 kg in Kenya under above-average rainfall, but did not have any significant effect on yields under below-average rainfall conditions in Kenya. Ground cover had a positive impact on yields in Malawi (dry conditions) but not in Kenya (both dry and wet conditions), where mixed crop and livestock systems limited this practice. Crop diversification had positive impacts in Kenya (both dry and wet conditions), where maize-legume crop rotation is practiced, but not in Malawi where landholdings are too small to allow rotation. Our findings suggest that isolated CA techniques can have positive effects on yields even after only a few years of practice under variable rainfall conditions. This strengthens empirical evidence supporting the value of CA in resilience building of agricultural systems, and suggests that both full and partial adoption of CA practices should be supported in areas where climate change is leading to more variable rainfall conditions. |
英文关键词 | climate resilience ENSO climate smart agriculture El Ni o sub-Saharan Africa conservation agriculture smallholder farming |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000499969400001 |
WOS关键词 | EL-NINO ; AFRICA ; ADOPTION ; SYSTEMS ; IMPACT |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/224671 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Univ Bern, Inst Geog, Hallerstr 12, CH-3012 Bern, Switzerland; 2.Univ York, Interdisciplinary Global Dev Ctr, Dept Environm & Geog, Wentworth Way, York YO10 5NG, N Yorkshire, England; 3.Univ Leeds, Sch Earth & Environm, Sustainabil Res Inst, Leeds LS2 9JT, W Yorkshire, England; 4.Lilongwe Univ Agr & Nat Resources, POB 219, Lilongwe, Malawi; 5.Ctr Training & Integrated Res ASAL Dev, POB 144, Nanyuki 10400, Kenya; 6.BurdGIS, Wakefield WF2 6JQ, England |
推荐引用方式 GB/T 7714 | Boillat, Sebastien,Jew, Eleanor K. K.,Steward, Peter R.,et al. Can smallholder farmers buffer rainfall variability through conservation agriculture? On-farm practices and maize yields in Kenya and Malawi[J]. ENVIRONMENTAL RESEARCH LETTERS,2019,14(11). |
APA | Boillat, Sebastien.,Jew, Eleanor K. K..,Steward, Peter R..,Speranza, Chinwe Ifejika.,Whitfield, Stephen.,...&Dougill, Andrew J..(2019).Can smallholder farmers buffer rainfall variability through conservation agriculture? On-farm practices and maize yields in Kenya and Malawi.ENVIRONMENTAL RESEARCH LETTERS,14(11). |
MLA | Boillat, Sebastien,et al."Can smallholder farmers buffer rainfall variability through conservation agriculture? On-farm practices and maize yields in Kenya and Malawi".ENVIRONMENTAL RESEARCH LETTERS 14.11(2019). |
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