浙江大学学报（理学版）2011，Vol.38Issue(6)：708-715,8.DOI:10.3785/j.issn.1008-9497.2011.06.019
基于探索性空间数据分析的安吉县水土流失时空变异规律研究
Spatio-temporal dynamics of soil loss in Anji County, Zhejiang Province using exploratory spatial data analysis
摘要
Abstract
Accurate and timely information on spatio-temporal dynamics of soil loss is crucial in making effective soil and water conservation measures. Previous studies, however, rarely characterized quantitatively and spatially the features and patterns of soil loss. This paper reported the spatio-temporal dynamics of soil and water loss during 1994 and 2003 in Anji County, Zhejiang Province using exploratory spatial analysis (Global Moran's I and Local Indicators of Spatial Association) and Landsat information. During the ten years(1994~2003), the County-wide soil e-rosion was intensified, and the area susceptible to erosion substantially widened. The distribution of soil erosion areas showed an obvious trend of spatial clustering at the 500 m×500 m and 1000 m× 1000 m resolutions, especially at 500 m×500 m scale. This study provides a new approach for government and relevant officials to understand the spatio-temporal dynamics of soil loss and make counter-measures.关键词
探索性空间分析/水土流失/修正通用水土流失方程(RUSLE)/时空变异/安吉县Key words
ESDA/ soil loss/ RUSLEj spatiotemporal dynamics/ Anji County分类
农业科技引用本文复制引用
江振蓝,苏世亮,荆长伟,林声盼,吴嘉平..基于探索性空间数据分析的安吉县水土流失时空变异规律研究[J].浙江大学学报（理学版）,2011,38(6):708-715,8.基金项目
国家水体污染控制与治理科技重大专项资助项目(2008ZX07101-006). （2008ZX07101-006）
