GUO Peng,XU Li-ping.Spatiotemporal Variation of Vegetation in Xinjiang Based on GIMMS-NDVI[J].Research of Soil and Water Conservation,2014,21(04):97-100,106.
基于GIMMS-NDVI的新疆植被覆盖时空变化
- Title:
- Spatiotemporal Variation of Vegetation in Xinjiang Based on GIMMS-NDVI
- 关键词:
- GIMMS-NDVI; 新疆; 植被; 时空变化
- Keywords:
- GIMMS-NDVI; Xinjiang; vegetation; spatiotemporal variation
- 分类号:
- P237
- 摘要:
- 利用1982—2006年的GIMMS NDVI数据，采用最大值合成法、平均值法、时间序列分析、T值检验等方法等以年数据研究了新疆的植被覆盖动态变化情况，并结合气候等相关因素综合分析了其时空分布特征。研究表明：（1）新疆的植被覆盖有明显的南北差异，北疆优于南疆，西北优于东南。（2）研究区近25 a间植被覆盖呈现增长趋势的区域有20.33万 km2，占总面积的12.4%；呈现减少趋势的区域面积为11.75万km2，占总面积的7.0%；面积无变化或变化不大的区域占总面积的80.6%。（3）新疆1982—2006年间植被覆盖主要是呈现出波浪式上升的良好增长趋势，并且相对较为稳定。
- Abstract:
- By using 1982—2006 GIMMS—NDVI images,this paper analyzed the spatiotemporal variation of vegetation in Xinjiang.Results showed that: (1) it had the obvious difference between the vegetation covers in north and south of Xinjiang, the vergetation recovery is better in north than south in Xinjiang, and the northwest is better tha the southeast; (2) the region area that had the growing trend was 20.33×104 km2, which was 12.4% of the total area. And the region area that had reducing trend was 11.75×104 km2, which was 7.0% of the total area; (3) the vegetation cover in Xinjiang shows a good wave rising rowth trend from 1982 to 2006, and which is relatively stable.
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备注/Memo
收稿日期:2013-10-19;改回日期:2013-12-05。
基金项目:国家自然科学基金项目“天山北麓新垦绿洲土地覆被变化与局地气候互动效应研究”（41001387）
作者简介:郭鹏(1981-),男,安徽利辛人,硕士,助理研究员,主要从事遥感技术应用研究。E-mail:gp163@163.com