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	Long-term change in village-scale ecosystems in China using landscape and statistical methods
	Ellis, EC; Li, RG; Yang, LZ; Cheng, X
刊名	ECOLOGICAL APPLICATIONS
	2000-08-01
卷号	10期号:4页码:1057-1073
关键词	agroecology anthropogenic ecosystems China data quality ecological history ecotope Geographic Information Systems land use landscape classification Monte Carlo uncertainty analysis research synthesis traditional agriculture
ISSN号	1051-0761
通讯作者	Ellis, EC()
英文摘要	Densely populated village ecosystems in subsistence agriculture regions cover a global area equivalent to two-thirds of that of tropical rainforests. Measuring longterm anthropogenic changes in these regions presents methodological challenges for ecologists, because ecosystem processes must be measured and compared under preindustrial vs. contemporary conditions within highly heterogeneous anthropogenic landscapes. In this study, we use landscape classification and observational uncertainty analysis to stratify, estimate, and compare changes in landscape structure caused by the transition from traditional to modern management within a single village in China's Tai Lake Region. Contemporary data were gathered on-site during 1993-1996 using aerial photography, field surveying, local knowledge, and household surveys, while traditional period estimates, similar to 1930, were obtained using interviews, back estimation, and historical sources. A hierarchical landscape classification scheme was used to stratify village landscapes into 35 fine-scale landscape components with relatively homogeneous ecosystem processes. Monte Carlo simulation and data quality indexing were used to calculate and compare village and component areas and their changes. Using this approach, we observed significant longterm declines in the proportion of village area covered by paddy (-12%), fallow, and perennial areas (-8%), and increases in areas under buildings and infrastructure (+7%). Aquatic and wetland areas increased by nearly 40% from 1930 to 1994. Significant declines in fallow and perennial vegetation and increases in constructed and heavily trafficked areas indicate overall increases in human disturbance. Our methods for observational uncertainty analysis, anthropogenic landscape classification, and the linking of imagery with field, household, and other local data are powerful tools for detecting and monitoring long-term ecological changes within anthropogenic landscapes.
收录类别	SCI
WOS关键词	LAND-USE ; WETLANDS ; CLASSIFICATION ; VEGETATION ; CLIMATE
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology ; Environmental Sciences
语种	英语
出版者	ECOLOGICAL SOC AMER
WOS记录号	WOS:000088496000010
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2559120
专题	南京土壤研究所
通讯作者	Ellis, EC
作者单位	1.China Agr Univ, Dept Agron & Agroecol, Beijing 100094, Peoples R China 2.Jiangsu Dept Agr & Forestry, Off Rural Energy & Environm Protect, Nanjing 210009, Jiangsu, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Soil Sci, Dept Ecol, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Ellis, EC,Li, RG,Yang, LZ,et al. Long-term change in village-scale ecosystems in China using landscape and statistical methods[J]. ECOLOGICAL APPLICATIONS,2000,10(4):1057-1073.
APA	Ellis, EC,Li, RG,Yang, LZ,&Cheng, X.(2000).Long-term change in village-scale ecosystems in China using landscape and statistical methods.ECOLOGICAL APPLICATIONS,10(4),1057-1073.
MLA	Ellis, EC,et al."Long-term change in village-scale ecosystems in China using landscape and statistical methods".ECOLOGICAL APPLICATIONS 10.4(2000):1057-1073.

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