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	Estimating Long-Term Changes in China's Village Landscapes
	Ellis, Erle Christopher1; Neerchal, Nagaraj2; Peng, Kui3,4; Xiao, Hong Sheng5; Wang, Hongqing1,6; Yan Zhuang2; Li, Shou Cheng7; Wu, Jun Xi8; Jiao, Jia Guo9; Hua Ouyang3
刊名	ECOSYSTEMS
	2009-02-01
卷号	12期号:2页码:279-297
关键词	human dominated ecosystems land-use and land-cover change China anthropogenic biomes ecological history landscape ecology up-scaling regional change ecotope mapping agriculture
ISSN号	1432-9840
DOI	10.1007/s10021-008-9222-4
通讯作者	Ellis, Erle Christopher(ece@umbc.edu)
英文摘要	Over the past 50 years, China's ancient agricultural village landscapes have been transformed by unprecedented social, technological, and ecological changes. Although these dense anthropogenic mosaics of croplands, settlements, and other used lands cover more than 2 million square kilometers across China, the nature of these changes and their environmental impacts remain poorly understood because their spatial scale is generally too small to measure accurately using conventional land-change methods. Here, we investigate the regional consequences of fine-scale landscape changes across China's village regions from 1945 to 2002 using high-resolution, field-validated ecological mapping of a regionally stratified sample of village landscapes at five sites across China, with uncertainties estimated using model-based resampling and Monte Carlo methods. From 1945 to 2002, built surface areas increased by about 7% (90% credible interval = 2-17%) across China's village regions, an increase equivalent to about three times the total urban area of China in 2000. Although this striking result is explained by a near doubling of already large village populations and by lower housing density per capita in rural areas, two unexpected changes were also observed: a 9% net increase (-4% to +21%) in regional cover by closed canopy trees and an 11% net decline (-30% to +3%) in annual crops. These major regional changes were driven primarily by intensive fine-scale land-transformation processes including tree planting and regrowth around new buildings, cropland abandonment, and by the adoption of perennial crops and improved forestry practices. Moreover, the fragmentation, heterogeneity, and complexity of village landscapes increased over time. By coupling regional sampling and upscaling with observations in the field, this study revealed that fine-scale land-change processes in anthropogenic landscapes have the potential for globally significant environmental consequences that are not anticipated, measured, or explained by conventional coarser resolution approaches to global and regional change measurement or modeling.
收录类别	SCI ; SSCI
WOS关键词	LAND-USE CHANGE ; TEMPORAL PATTERNS ; CARBON STORAGE ; DESIGN ; ENVIRONMENT ; ECOSYSTEMS ; SCIENCE ; FORESTS ; SYSTEMS ; IMAGERY
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000263672100007
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558748
专题	南京土壤研究所
通讯作者	Ellis, Erle Christopher
作者单位	1.Univ Maryland, Dept Geog & Environm Sci, Baltimore, MD 21250 USA 2.Univ Maryland, Dept Math Stat, Baltimore, MD 21250 USA 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 4.Univ Sci & Technol Beijing, Met & Ecol Engn Sch, Beijing 100083, Peoples R China 5.S China Agr Univ, Inst Trop & Subtrop Ecol, Guangzhou 510642, Guangdong, Peoples R China 6.Univ Louisiana, Inst Coastal Ecol & Engn, Lafayette, LA 70504 USA 7.Sichuan Agr Univ, Agron Coll, Yaan 625014, Sichuan, Peoples R China 8.China Agr Univ, Dept Agron & Agroecol, Beijing 100094, Peoples R China 9.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Ellis, Erle Christopher,Neerchal, Nagaraj,Peng, Kui,et al. Estimating Long-Term Changes in China's Village Landscapes[J]. ECOSYSTEMS,2009,12(2):279-297.
APA	Ellis, Erle Christopher.,Neerchal, Nagaraj.,Peng, Kui.,Xiao, Hong Sheng.,Wang, Hongqing.,...&Yang, Lin Zhang.(2009).Estimating Long-Term Changes in China's Village Landscapes.ECOSYSTEMS,12(2),279-297.
MLA	Ellis, Erle Christopher,et al."Estimating Long-Term Changes in China's Village Landscapes".ECOSYSTEMS 12.2(2009):279-297.

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