Analysis on Change of the Vegetation Cover in Poyang Lake Area from 1991 to 2005

• 作者: CHEN Hui GU Xiao-qing ZHU Bi-qin
• 来源期刊: 气象与环境研究：英文版
• 学科: 农学
• 关键词: 植被覆盖变化 鄱阳湖区 植被覆盖度 TM遥感影像 像元二分模型 自然生态环境 陆地卫星 NDVI
• 年，卷（期）: 2012,（5）
• 页码范围: 56-59
• 页数: 4页
• 分类号: S157.1

摘要

[Objective] The research aimed to analyze variation of the vegetation cover in Poyang Lake area from 1991 to 2005. [Method] Based on Landsat TM remote sensing images of 1991 and 2005 in Poyang Lake area, NDVI dimidiate pixel model was used to calculate vegetation coverage. By transfer matrix, temporal-spatial change of the vegetation cover grade in the area was analyzed. [Result] Vegetation cover in this region overall presented increase trend from 1991 to 2005, and forestry area increased somewhat. But at the same time, farmland area decreased to some extent. Sandlot and bare land also increased slightly. [Conclusion] Governments and relevant departments should reasonably allocate land resources and protect natural ecology environment.