四川农业大学学报 ›› 2016, Vol. 34 ›› Issue (02): 227-233.doi: 10.16036/j.issn.1000-2650.2016.02.018

• • 上一篇    下一篇

基于GIS和RS的喀斯特水源地景观格局动态变化研究——以大春河小流域为例

杨民英1, 李玉辉1, 庞丹波2, 俞筱押1   

  1. 1. 云南师范大学旅游与地理科学学院, 昆明 650500;
    2. 北京林业大学, 北京 100083
  • 收稿日期:2016-04-14 出版日期:2016-06-30 发布日期:2017-02-15
  • 通讯作者: 李玉辉,教授,博士生导师,主要从事喀斯特资源环境与生态恢复、国家公园(遗产)与景观保育研究,E-mail:lyh123zhang@163.com。 E-mail:lyh123zhang@163.com
  • 作者简介:杨民英,硕士研究生。
  • 基金资助:
    国家自然科学基金[41262013]"森林植被影响岩溶水源地产水功能的观测研究"

Dynamics of Landscape Pattern of Karst Reservoir-water Supply Area Based on GIS and RS: A Case Study in Dachunhe Basin

YANG Min-ying1, LI Yu-hui1, PANG Dan-bo2, YU Xiao-ya1   

  1. 1. School of Tourism and Geographical Sciences, Yunnan Normal University, Kunming 650500, China;
    2. Beijing Forestry University, Beijing 100083, China
  • Received:2016-04-14 Online:2016-06-30 Published:2017-02-15

摘要: [目的] 研究大春河流域土地利用类型的构成及其变化,为该区域优化水源地保护提供指导。[方法] 采用GIS和RS技术处理2007年和2015年大春河流域的Landsat TM遥感影像,运用Fragstats 4.2计算景观格局指数并对研究区的景观要素构成、格局和转化特征进行定量分析。[结果] ①大春河水源地流域面积17.44 km2,2007年和2015年主要土地利用类型为林地(27.85%;36.68%)、耕地(29.05%;26.59%)和灌草地(28.39%;24.71%);②2007年和2015年,大春河流域土地利用类型转化总面积为6.18 km2,变化最大土地利用类型为林地;③与2007年相比,2015年林地斑块的密度、边界和形状指数均减小,聚集度指数增大;④2015年人工表面(道路、建筑用地)面积与2007年相比明显增加。[结论] 大春河水源地景观格局变化显著,主要表现为林地和人工表面的变化。

关键词: 土地利用类型, 景观格局, 喀斯特, 水源地, 大春河小流域

Abstract: [Objective] The aim of the study was to investigate the formation and changes of land use types in Dachunhe basin, which may be important to guide the optimization and protection of regional reservoir-water supply area. [Method] The landsat TM remote sensing image of Dachunhe basin in 2007 and 2015 were analyzed using GIS and RS technology. Additionally, landscape pattern index and quantitative analysis composition, pattern and transformation characteristics of landscape elements in the study area were calculated by Fragstats 4.2. [Results] ① Basin area in Dachunhe reservoir-water supply area was 17.44 km2. Main land use types were forest land(27.85%, 36.68%), cultivated land(29.05%, 26.59%) and grassland(28.39%, 24.71%) in 2007 and 2015;② From 2007 to 2015, the total conversion area of land use type was 6.18 km2 in Dachunhe basin and the largest change of land use type was forest land; ③ Compared with 2007, the forest land patch density, boundary and shape index reduced but aggregation index increased in 2015 in the study area; ④ The artificial surface(load and construction land) area was increased significantly in 2015 compared to 2007. [Conclusion] The landscape pattern of Dachunhe reservoir-water supply area changed significantly, mainly exhibiting in forest land and artificial surface.

Key words: land use type, landscape pattern, karst, reservoir-water supply area, Dachunhe basin

中图分类号: 

  • P901