Agricultural expansion in Yunnan Province and its environmental consequences

doi:10.1007/s11434-006-8136-9

	Agricultural expansion in Yunnan Province and its environmental consequences
	Li Renqian ; Dong Ming ; Peng Hua; Zhang Lili ; Cui Qingguo ; He Weiming
	2006-11-01
发表期刊	CHINESE SCIENCE BULLETIN
卷号	51 页码:136-142
摘要	Yunnan Province with numerous international rivers has huge impacts on downstream countries such as Burma, Laos and Vietnam. Agricultural expansion in Yunnan has conferred and continues to confer detrimental impacts on environments. In the past 43 years (1960-2003), the increase in crop yield was associated with a 99.1-fold increase in fertilizers, 2.0-fold in pesticides, and 0.4-fold in cultivated lands, respectively. Based on linear regression of the past trend, the next doubling of crop yield in the future would be accompanied by the increase in fertilizer application (from about 1.3x10(9) kg to 3.6x10(9) kg), and the increase in application of pesticides (from about 2.7x10(7) kg to 9.6x10(7) kg). Similarly, the total amount of cultivated lands would increase from about 5.9x10(6) ha to 9.3x10(6) ha. In the past decades, these changes have caused a series of environmental problems such as agricultural non-point source pollution (ANSP), deforestation, land degradation, and biodiversity loss. If the escalating status continues as our prediction, those problems would get worse and be tough to be dealt with. As for the situation in this region, some practices to minimize the impacts should be implemented in controlling population growth, protecting wetlands, developing tourism, and utilizing fertilizers and pesticides more rationally.
关键词	Agricultural Expansion Crop Yield Environmental Analysis Fertilizer Use Pesticide Use Yunnan Province
DOI	10.1007/s11434-006-8136-9
收录类别	SCI
语种	英语
WOS记录号	WOS:000242719500016
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/24802
专题	中国科学院东亚植物多样性与生物地理学重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, Lab Quantitat Vegetat Ecol, Beijing 100093, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Kunming Inst Bot, Kunming 650024, Peoples R China
推荐引用方式 GB/T 7714	Li Renqian,Dong Ming,Peng Hua,et al. Agricultural expansion in Yunnan Province and its environmental consequences[J]. CHINESE SCIENCE BULLETIN,2006,51:136-142.
APA	Li Renqian,Dong Ming,Peng Hua,Zhang Lili,Cui Qingguo,&He Weiming.(2006).Agricultural expansion in Yunnan Province and its environmental consequences.CHINESE SCIENCE BULLETIN,51,136-142.
MLA	Li Renqian,et al."Agricultural expansion in Yunnan Province and its environmental consequences".CHINESE SCIENCE BULLETIN 51(2006):136-142.

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