Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.agsy.2014.06.009 |
Economic trade-offs of biomass use in crop-livestock systems: Exploring more sustainable options in semi-arid Zimbabwe | |
Tui, Sabine Homann-Kee1; Valbuena, Diego2,3; Masikati, Patricia1; Descheemaeker, Katrien3; Nyamangara, Justice1; Claessens, Lieven4; Erenstein, Olaf5; van Rooyen, Andre1; Nkomboni, Daniel6 | |
通讯作者 | Tui, Sabine Homann-Kee |
来源期刊 | AGRICULTURAL SYSTEMS
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ISSN | 0308-521X |
EISSN | 1873-2267 |
出版年 | 2015 |
卷号 | 134页码:48-60 |
英文摘要 | In complex mixed crop-livestock systems with limited resources and biomass scarcity, crop residues play an important but increasingly contested role. This paper focuses on farming systems in the semi-arid areas of Zimbabwe, where biomass production is limited and farmers integrate crop and livestock activities. Conservation Agriculture (CA) is promoted to intensify crop production, emphasizing the retention of surface mulch with crop residues (CR). This paper quantifies the associated potential economic tradeoffs and profitability of using residues for soil amendment or as livestock feed, and explores alternative biomass production options. We draw on household surveys, stakeholder feedback, crop, livestock and economic modeling tools. We use the Trade-Off Analysis Model for Multi Dimensional Impact Assessment (TOA-MD) to compare different CR use scenarios at community level and for different farm types: particularly the current base system (cattle grazing of maize residues) and sustainable intensification alternatives based on a CA option (mulching using maize residues inorganic fertilizer) and a maize mucuna (Mucuna pruriens) rotation. Our results indicate that a maize mucuna rotation can reduce trade-offs between CR uses for feed and mulch, providing locally available organic soil enhancement, supplementary feed and a potential source of income. Conservation Agriculture without fertilizer application and at non-subsidized fertilizer prices is not financially viable; whereas with subsidized fertilizer it can benefit half the farm population. The poverty effects of all considered alternative biomass options are however limited; they do not raise income sufficiently to lift farmers out of poverty. Further research is needed to establish the competitiveness of alternative biomass enhancing technologies and the socio-economic processes that can facilitate sustainable intensification of mixed crop-livestock systems, particularly in semi-arid environments. (C) 2014 Elsevier Ltd. All rights reserved. |
英文关键词 | Crop-livestock intensification Biomass trade-offs Farm types Economic impacts Zimbabwe |
类型 | Article |
语种 | 英语 |
国家 | Zimbabwe ; Nicaragua ; Netherlands ; Kenya ; Ethiopia |
收录类别 | SCI-E |
WOS记录号 | WOS:000353075000006 |
WOS关键词 | CONSERVATION AGRICULTURE ; SMALLHOLDER FARMERS ; STRATEGIES ; INTENSIFICATION ; PRODUCTIVITY ; CHALLENGES ; BENEFITS ; AFRICA ; MAIZE |
WOS类目 | Agriculture, Multidisciplinary |
WOS研究方向 | Agriculture |
来源机构 | International Crops Research Institute for the Semi-Arid Tropics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/185584 |
作者单位 | 1.Int Crops Res Inst Semi Arid Trop, Bulawayo, Zimbabwe; 2.Int Ctr Trop Agr CIAT, Managua, Nicaragua; 3.Wageningen Univ WUR, NL-6700 AK Wageningen, Netherlands; 4.Int Crops Res Inst Semi Arid Trop, Nairobi, Kenya; 5.Int Maize & Wheat Improvement Ctr CIMMYT, ILRI, Addis Ababa, Ethiopia; 6.Matopos Res Inst, Bulawayo, Zimbabwe |
推荐引用方式 GB/T 7714 | Tui, Sabine Homann-Kee,Valbuena, Diego,Masikati, Patricia,et al. Economic trade-offs of biomass use in crop-livestock systems: Exploring more sustainable options in semi-arid Zimbabwe[J]. International Crops Research Institute for the Semi-Arid Tropics,2015,134:48-60. |
APA | Tui, Sabine Homann-Kee.,Valbuena, Diego.,Masikati, Patricia.,Descheemaeker, Katrien.,Nyamangara, Justice.,...&Nkomboni, Daniel.(2015).Economic trade-offs of biomass use in crop-livestock systems: Exploring more sustainable options in semi-arid Zimbabwe.AGRICULTURAL SYSTEMS,134,48-60. |
MLA | Tui, Sabine Homann-Kee,et al."Economic trade-offs of biomass use in crop-livestock systems: Exploring more sustainable options in semi-arid Zimbabwe".AGRICULTURAL SYSTEMS 134(2015):48-60. |
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