[1]张桐艳,贺敬滢,李光录,等.基于水土流失风险的流域景观格局识别方法研究[J].水土保持研究,2012,19(03):175-179,184.
　ZHANG Tong-yan,HE Jing-ying,LI Guang-lu,et al.Method of Watershed Landscape Pattern Analysis Based on the Risk of Soil and Water Loss[J].Research of Soil and Water Conservation,2012,19(03):175-179,184.
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基于水土流失风险的流域景观格局识别方法研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 19 期数: 2012年03期 页码: 175-179,184 栏目: 出版日期: 2012-06-20
Title:
Method of Watershed Landscape Pattern Analysis Based on the Risk of Soil and Water Loss
作者:
张桐艳1, 贺敬滢1, 李光录1, 朱首军1, 周茂玲2
1. 西北农林科技大学 资源环境学院, 陕西 杨凌 712100;
2. 洋县水土保持工作站, 陕西 洋县 723300
Author(s):
ZHANG Tong-yan1, HE Jing-ying1, LI Guang-lu1, ZHU Shou-jun1, ZHOU Mao-ling2
1. College of Resources and Environmental Science, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. Soil and Water Conservation Working Station of Yangxian, Yangxian, Shaanxi 723300, China
关键词:
景观格局; 水土流失风险; 景观负荷对比指数; 丹江流域
Keywords:
landscape pattern; risk of soil and water loss; location-weighted landscape contrast index; Danjiang River watershed
分类号:
Q143
摘要:
运用“源、汇”景观理论，利用洛伦兹曲线，考虑了植被覆盖因素，基于景观坡度指数，构建了景观空间负荷对比指数，定量分析了丹江流域9个子流域的景观空间格局。结果表明：丹江流域北部各子流域主要以水土流失的“源”景观为主，景观坡度指数大，空间负荷指数小，水土流失风险大；流域南部各子流域上游以“汇”景观为主，坡度指数大，中下游以“源”景观为主，景观空间分布不均衡，存在一定的水土流失风险。
Abstract:
Based on Source-sink principle and Lorentzian curve, this paper analyzed the landscape pattern of nine watersheds in Danjiang River Basin and constructed landscape slope index and location-weighted landscape contrast index. The results showed that the landscape in the watersheds of the northern basin was dominated by soil water loss ‘source’ landscape with bigger landscape slope index and smaller location-weighted landscape contrast index.The risk of soil water loss in those watersheds was very high.The landscape of the upper watersheds in the southern basin was dominated by ‘sink’ landscape with bigger landscape slope index, while ‘source’ landscape was dominated in the down reach. The distributions of ‘source’ and ‘sink’ landscapes were uneven in the watersheds, which made a higher risk of soil water loss.

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备注/Memo

收稿日期:2011-12-28;改回日期:2012-2-4。
基金项目:陕西省丹治流域水源保护项目（K332020903）
作者简介:张桐艳（1987- ），女，新疆人，硕士生，研究方向为土地资源利用与管理。E-mail：zty_456@126.com
通讯作者:李光录（1964- ），男，宁夏人，博士，副教授，硕士生导师，主要从事土地利用与土壤侵蚀研究。E-mail：guangluli@nwsuaf.edu.cn

更新日期/Last Update: 1900-01-01