基于GIS的县域土地利用景观格局演化研究——以大安市为例(英文)

• 作者: 李衡 王海涛 许振文 费龙
• 来源期刊: 景观研究：英文版
• 学科: 地球科学
• 关键词: LAND use LANDSCAPE PATTERN Dynamic CHANGE Da’an CITY
• 年，卷（期）: 2011,（9）
• 页码范围: 45-48
• 页数: 4页
• 分类号: P208

摘要

With land use landscape pattern of Da’an City in west Jilin Province as an example, internal mechanism of regional land use changes was explored on the basis of GIS and remote sensing interpretation data. County-scale RS images were processed in ENVI, relevant indexes of land use change and landscape ecology selected to analyze quantity structure change, dynamic change and transition matrix of land use, and evolution trends of land use/cover change and landscape pattern in the study area analyzed. The results showed that from 1995 to 2005 Da’an City has witnessed a decreasing mean patch area of farmland, grassland and woodland, aggravating fragmentation of woodland and grassland; declining landscape diversity and increasing dominance degrees of certain landscapes; diversified land use types but lower rationality, increasing areas of certain landscape types.