泾河地区景观变化及其驱动因素的关系

2010 International Conference on Challenges in Environmental Science and Computer Engineering Pub Date : 2010-03-06 DOI:10.1109/CESCE.2010.122

A. Lu, A. Suo

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引用次数: 1

摘要

本文采用定量生态学的典型对应分析(CCA)方法，分析了泾河流域景观变化及其驱动因子之间的关系。位于黄土高原中部。利用水文工具将流域划分为15个子流域。采用GIS统计和野外调查相结合的方法，对各子流域的14个景观指数和9个驱动因子进行了详细测量。结果表明:泾河流域土地覆被存在区域差异，其主要驱动因子为坡度、降雨量、人口密度、农机机制和河流密度;坡度对林地和灌丛地的分布呈正相关，对建筑用地的分布呈负相关。年降水量与林地分布呈正相关。人口密度对耕地和建筑用地分布呈正相关。农作机制与耕地比和灌丛比呈负相关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Relationship between Landscape Change and its Driving Factors in Jinghe

In this paper, Canonical Correspondence Analysis (CCA) method of quantitative ecology was employed to analyze the relationship between landscape change and its driver factors in Jinghe River Watershed. which located in middle of the Loess Plateau. The watershed was divided into 15 sub-watersheds by hydrological tools. Fourteen landscape indices and nine driver factors in each sub-watershed were measured carefully using GIS statistics and field surveying. The result showed that Land cover appears regional difference in the Jinghe River Watershed and its main drive factors are slope, rainfall, population density, farm mechanism and river density. Slope is positive to forest land and shrub land distribution, while negative to that of building land. Annual precipitation is positive to forest land distribution. Population density is positive to farm land and that of building land distribution. Farm mechanism is negative to farm land ratio and that of shrub land ratio.

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来源期刊

2010 International Conference on Challenges in Environmental Science and Computer Engineering

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