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题名: Fertilizer use patterns in Yunnan Province, China: Implications for agricultural and environmental policy
作者: Li Yunju1, 2; Kahrl, Fredrich3, 5; Pan Jianjun2; Roland-Holst, David4; Su Yufang5, 6; Wilkes, Andreas5; null(许建初)1, 5, 6
刊名: AGRICULTURAL SYSTEMS
关键词: Fertilizer ; Yunnan ; China ; Sustainable agriculture
英文摘要: Balancing the need to increase crop yields with the need to reduce the environmental impacts of fertilizers will pose major policy, regulatory, and extension challenges for China. A growing number of studies have demonstrated the potential for improving fertilizer use efficiency in China, but it is not clear how to achieve these efficiency improvements on a larger scale. The empirical foundation for fertilizer policy in China is still weak, particularly in inland provinces. This paper examines fertilizer use patterns in Yunnan Province, an inland and ecologically important province in Southwest China, drawing on two household surveys. We find that fertilizer application rates in the survey areas are highly heterogeneous, among crops, households, and regions. Managing this diversity poses the largest challenge to fertilizer policy in Yunnan and, by extension, in China. None of the factors that we examine in this study are robust predictors of fertilizer intensity (kg ha(-1)) in the survey regions, though in one survey there is a strong inverse relationship between farm size and fertilizer intensity. The lack of clearer signals in the survey data, a consequence of heterogeneity in cropping patterns, agroecosystems, and local economies, underscores the importance of locally tailored approaches to fertilizer regulation in China, and of a strong, service-oriented agricultural extension system oriented around sustainable agriculture. (c) 2012 Elsevier Ltd. All rights reserved.
出版日期: 2012-07-01
卷号: 110, 页码:78-89
语种: 英语
收录类别: SCI ; SSCI
学科分类: Agriculture, Multidisciplinary
ISSN号: 0308-521X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/15125
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Heilongtan 650204, Kunming, Peoples R China
2.Nanjing Agr Univ, Coll Resources & Environm, Nanjing 210095, Jiangsu, Peoples R China
3.Univ Calif Berkeley, Energy & Resources Grp, Berkeley, CA 94720 USA
4.Univ Calif Berkeley, Dept Agr & Resource Econ, Berkeley, CA 94720 USA
5.Kunming Inst Bot, Ctr Mt Ecosyst Studies, Heilongtan 650204, Kunming, Peoples R China
6.World Agroforestry Ctr, E Asia Off, Kunming 650204, Peoples R China

Recommended Citation:
Li Yunju; Kahrl, Fredrich; Pan Jianjun; Roland-Holst, David; Su Yufang; Wilkes, Andreas; Xu Jianchu.Fertilizer use patterns in Yunnan Province, China: Implications for agricultural and environmental policy,AGRICULTURAL SYSTEMS,2012,110():78-89
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