Determinants of crop diversification in rice-dominated Sri Lankan agricultural systems
Determinants of crop diversification in rice-dominated Sri Lankan agricultural systems
复制标题
以水稻为主的斯里兰卡农业系统作物多样化的决定因素
DOI：
10.1016/j.jrurstud.2018.05.010
复制
发表时间：
2018
影响因子：
5.1
通讯作者：
A. T. D. L. Poterie
中科院分区：
文献类型：
--
作者：
E. Burchfield;A. T. D. L. Poterie
气候驱动的热带农业系统水供应的变化将迫使许多农民大幅改变其耕作方式。在以水密集型水稻种植为主的农业系统中，农民可能需要从水稻转向在新气候下表现更好的作物。我们结合联合收割机的数据，从斯里兰卡农民的访谈和家庭调查，以确定影响农民的决定，从水稻单作多样化的因素。结果表明，许多农民不能多样化，因为他们的领域的特点，包括海拔，土壤质量，灌溉基础设施，并在灌溉系统内的相对位置。因此，假定所有农民都能从事多样化的政策不可能产生预期的影响。在那些土地可以支持多样化的农民中，市场准入差、市场不稳定、政府支持有限以及投入成本相对较高降低了多样化率。除了为其他大田作物的种植创造支持性的制度环境外，利用现有的水管理机构来确定和支持拥有适合多样化的田地的农民，可以减少农业用水需求，并增加无法从事多样化的农民的用水机会。
Climate-driven changes in water availability in tropical agricultural systems will force many farmers to significantly alter their cultivation practices. In agricultural systems dominated by water-intensive rice cultivation, farmers may need to diversify away from rice to crops that perform better in the new climate. We combine data from interviews and household surveys with Sri Lankan farmers to identify the factors that influence farmers’ decisions to diversify away from rice monoculture. Results indicate that many farmers cannot diversify because of the characteristics of their fields, including elevation, soil quality, irrigation infrastructure, and relative position within an irrigation system. As a result, policies that assume all farmers are able to engage in diversification are unlikely to have the desired impact. Of the farmers whose fields can support diversification, poor market access, market instability, limited government support, and relatively high input costs reduce diversification rates. In addition to creating a supportive institutional environment for the cultivation of other field crops, leveraging existing water management institutions to identify and support farmers with fields suitable to diversification could decrease agricultural water demands and increase water access for farmers unable to engage in diversification.
影响因子：
30.7
作者：
Challinor, A. J.;Watson, J.;Chhetri, N.
通讯作者：
Chhetri, N.
DOI：
10.1073/pnas.1510982112
发表时间：
2015-08-25
影响因子：
11.1
作者：
Sibhatu, Kibrom T.;Krishna, Vijesh V.;Qaim, Matin
通讯作者：
Qaim, Matin