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国土资源遥感  2016, Vol. 28 Issue (1): 159-165    DOI: 10.6046/gtzyyg.2016.01.23
  技术应用 本期目录 | 过刊浏览 | 高级检索 |
抚仙湖流域土地利用格局与水质变化关系
杨娅楠1,2, 王金亮1, 陈光杰1, 习晓环2, 王成2
1. 云南师范大学旅游与地理科学学院, 昆明 650500;
2. 中国科学院遥感与数字地球研究所数字地球重点实验室, 北京 100094
Relationship between land use pattern and water quality change in Fuxian Lake basin
YANG Yanan1,2, WANG Jinliang1, CHEN Guangjie1, XI Xiaohuan2, WANG Cheng2
1. School of Tourism and Geographical Science, Yunnan Normal University, Kunming 650500, China;
2. Key Laboratory of Digital Earth, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China
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摘要 

抚仙湖是我国水质较好的大型淡水湖泊之一,其总体水质为Ⅰ类。近年来由于流域内开发强度增加,水体水质呈现下降的趋势。为探究流域土地利用变化可能对湖泊水质产生的影响,利用1992-2010年的Landsat TM和ETM+数据,结合GIS技术和统计学方法,分析了流域内土地利用及景观格局变化与湖泊水质的响应关系。研究结果显示:抚仙湖水体面积缩小,流域内林地和耕地面积总体呈减小趋势,与水质污染指数变化呈显著负相关;交通运输用地和建设用地增长迅速,与水质污染指数响应呈显著正相关;景观斑块数目、形状指数等景观格局指数增加,流域景观格局破碎化加重,与水质污染指数变化呈显著正相关;土地利用及景观格局指数可以作为研究抚仙湖水质变化的重要指标。

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关键词 机载LiDARGISalpha-shapes算法建筑物变化检测    
Abstract

The water quality of the Fuxian Lake basin has been deteriorating during the past 20 years. To evaluate the impacts of land use changes on water quality, the authors used Landsat TM and ETM+ from 1992 to 2010, in combination with GIS methods and correlation analysis, to explore the relationships of water quality with land use structure and landscape patterns respectively in the period of 1992-2010. The results showed that the surface water area, forest coverage and cultivated land area all displayed a decreasing trend, with a negative correlation of water quality with water area, forest coverage and cultivated land area respectively. There was a rapid expansion of transportation and construction land, which exhibited a significant positive correlation with water quality. Both the landscape diversity index and Shannon's diversity index (SDI) exhibit a significant positive correlation with water quality, and landscapes become more fragmented with an increase in patch number and shape complexity.

Key wordsairborne LiDAR    GIS    alpha-shapes algorithm    building    change detection
收稿日期: 2014-08-11      出版日期: 2015-11-27
ZTFLH:  TP79  
基金资助:

NSFC-云南联合基金项目"过去两千年多重环境压力对云南湖泊环境的影响及驱动机制研究"(编号:U1133601)、科技部国家重点基础研究发展计划(973计划)前期研究专项课题"抚仙湖生态环境变化的时空模式与流域开发影响机制评价"(编号:2014CB460607)以及国家自然科学基金面上项目"基于星载GLAS与光学影像的森林生物量反演机理与方法研究"(编号:41271428)共同资助。

通讯作者: 王金亮(1963-),男,教授,主要研究方向为遥感与GIS在资源环境方面的应用。Email:wang-jinliang@hotmail.com。     E-mail: wang-jinliang@hotmail.com
作者简介: 杨娅楠(1989-),女,硕士研究生,主要研究方向为遥感技术及应用。Email:yayani2833@sina.com。
引用本文:   
杨娅楠, 王金亮, 陈光杰, 习晓环, 王成. 抚仙湖流域土地利用格局与水质变化关系[J]. 国土资源遥感, 2016, 28(1): 159-165.
YANG Yanan, WANG Jinliang, CHEN Guangjie, XI Xiaohuan, WANG Cheng. Relationship between land use pattern and water quality change in Fuxian Lake basin. REMOTE SENSING FOR LAND & RESOURCES, 2016, 28(1): 159-165.
链接本文:  
http://www.gtzyyg.com/CN/10.6046/gtzyyg.2016.01.23      或      http://www.gtzyyg.com/CN/Y2016/V28/I1/159

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