欢迎访问《生态学杂志》官方网站,今天是 分享到:

生态学杂志

• 研究报告 • 上一篇    下一篇

基于GIS的榆林地区景观格局动态变化

王永军1,2;李团胜3   

  1. 1核工业航测遥感中心, 石家庄 050002;2西北大学城市与资源学系, 西安 710069;
    3长安大学地球科学与国土资源学院, 西安 710054

  • 收稿日期:2005-11-30 修回日期:2006-03-10 出版日期:2006-08-10 发布日期:2006-08-10

Dynamical changes of landscape pattern in Yulin region based on GIS

WANG Yongjun1,2; LI tuansheng3   

  1. 1Airborne Survey and Remote Sensing Center of Nuclear Industry, Shijiazhuang 050002, China; 2Department of Urban and Resources Science, Northwest University, Xi’an 710069, China; 3College of Earth Science and Land Resources, Chang’an University, Xi’an 710054, China

  • Received:2005-11-30 Revised:2006-03-10 Online:2006-08-10 Published:2006-08-10

摘要: 采用陕西省1982和1998年2期土地利用图(1∶500 000)截取榆林地区的部分,借助相关地形图和野外实地调查资料,利用地理信息系统软件ArcView 3.2和ArcInfo 7.1,对其景观分类进行处理与分析。结果表明,1982~1998年,草地和林地的面积显著增加,沙地的面积减少最大。破碎化程度仍然较为严重,景观形状趋于复杂,多样性和均匀度有所降低,但幅度不大,其中灌溉水田、旱地、园地、林地、水体、盐碱地、沙地、裸土岩地主要向草地转变;水浇地、草地主要向旱地转变;居民地的增加主要来自旱地;工矿用地的主要增加来自盐碱地。

关键词: 生态承载力, 崇明岛, 生态建设, 生态安全, 可持续发展

Abstract: By using 1∶500 000 land-use map of Yulin (1982-1998), geographic information system program ArcViewGIS 3.2 and ArcInfo 7.1, and landscape analysis program Fragstats, this paper analyzed the dynamic changes of landscape pattern in Yulin region. The results showed that in 1982-1998, the area of rassland and woodland in this region increased greatly, while that of sandy desert decreased greatly. The landscape had a higher fragmentation degree, its shape was getting more and more complex, and the Shannon’s diversity and landscape evenness indices decreased in a smaller degree. Irrigated paddy field, upland, garden land, woodland, waters, saline and alkaline land, and sandy land were mainly converted into grassland, while irrigable land and grassland were mainly converted into upland. The increment of residence area mainly came from upland, while that of industrial area mainly came from saline and alkaline land.

Key words: Ecological carrying capacity, Chongming Island, Ecological construction, Ecological security, Sustainable development