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| 蔡家川流域景观自然度研究 | |
| 引用本文： | 张志,朱金兆,朱清科,李永芳,刘学祥.蔡家川流域景观自然度研究[J].水土保持通报,2008,28(5):128-131. |
| 作者姓名： | 张志 朱金兆 朱清科 李永芳 刘学祥 |
| 作者单位： | 1. 清华大学,公共安全研究中心,北京,100084;北京林业大学,水土保持与荒漠化防治教育部重点实验室,北京,100083;武警警种指挥学院,森林系,北京,102202 2. 北京林业大学,水土保持与荒漠化防治教育部重点实验室,北京,100083 3. 山西省吉县红旗林场,山西,吉县,042200 4. 山东省烟台市房地产综合开发办公室,山东,烟台,264000 |
| 基金项目： | “十一五”国家科技支撑计划课题“困难立地工程造林关键技术研究”(2006BAD03A03); 国家重点基础研究发展规划项目“西部典型区域森林植被对农业生态环境的调控机理”(2002CB111503) |
| 摘 要： | 在借鉴国内外生态干扰度等相关研究成果的基础上，针对晋西黄土区蔡家川流域景观格局，提出了流域景观自然度概念，并确定相关空间图示表达以及分级量化分析方法。蔡家川流域呈现出以有林地为基质，灌木林、荒山和农地等斑块相问分布的景观格局。流域上、中、下三段之中，中段的破碎化程度最高，异质性最大，边缘效应强烈，斑块类型分布均匀。流域下段斑块破碎化程度减小，但天然起源的景观类型面积减少，人工起源和人为干扰成分较高的景观类型面积增加。流域上段较低的边缘效应，使之具有良好的生境质量和较高的生物多样性。流域自上而下表现出以人为影响为主要因子的生态干扰程度不断增强，自然景观减少，而半自然景观和人为景观均呈增加趋势。 |
| 关 键 词： | 蔡家川流域 流域景观自然度 景观格局 地理信息系统（GIS） |
| 收稿时间： | 2008/4/22 0:00:00 |
| 修稿时间： | 2008/6/29 0:00:00 |
Study of Landscape Naturalness(WLN)in Caijiachuan Watershed |
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| ZHANG Zhi,ZHU Jin-zhao,ZHU Qing-ke,LI Yong-fang and LIU Xue-xiang.Study of Landscape Naturalness(WLN)in Caijiachuan Watershed[J].Bulletin of Soil and Water Conservation,2008,28(5):128-131. | |
| Authors: | ZHANG Zhi ZHU Jin-zhao ZHU Qing-ke LI Yong-fang and LIU Xue-xiang |
| Institution: | Center for Public Safety Research, Tsinghua University, Beijing 100084, China;Key Laboratory of Soil and Water Conservation and Desertification Combating of the Ministry of Education, Beijing Forestry University, Beijing 100083, China;Department of Forest, Chinese Armed Police Force Services Command College, Beijing 102202, China;Key Laboratory of Soil and Water Conservation and Desertification Combating of the Ministry of Education, Beijing Forestry University, Beijing 100083, China;Key Laboratory of Soil and Water Conservation and Desertification Combating of the Ministry of Education, Beijing Forestry University, Beijing 100083, China;Hongqi Forestry Farm of Jixian County, Jixian, Shanxi 042200, China;Real Estate Comprehensive Development office of Yantai City, Yantai, Shandong 264000, China |
| Abstract: | Based on a comprehensive review of previous researches on ecological disturbance degree,this study aimed at watershed-scale landscape pattern on the Loess Plateau in West Shanxi Province.Watershed landscape naturalness(WLN),a new index,was introduced to describe landscape pattern characteristics,and its spatial expression on map and the methods of quantitative analysis were developed as well.Landscape of Caijiachuan watershed is composed of woodland and the patch mosaics of shrub-land,wasteland,and cropland... |
| Keywords: | Caijiachuan watershed watershed landscape naturalness(WLN) landscape pattern geographic information system(GIS) |
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