湖北省黄冈市欠发达地区植被覆盖度时空特征分析  

Analysis of spatial-temporal characteristics of vegetation coverage in underdeveloped area of Huanggang City,Hubei Province

作　　者：刘汉生[1,2] 吴宜进[1,2] 张永利[1,2] 王留林[1,2] 

机构地区：[1]华中师范大学地理过程分析与模拟湖北省重点实验室,湖北武汉430079 [2]华中师范大学城市与环境科学学院,湖北武汉430079

出　　处：《生态科学》2015年第5期23-28,共6页Ecological Science

基　　金：中国科学院地理科学与资源研究所国家科技支撑计划课题(2012BAH33B00)"扶贫空间信息系统关键技术及其应用"

摘　　要：运用黄冈市2000、2005和2010年3期的Landsat TM和Landsat ETM+遥感数据,采取像元二分模型,进行植被覆盖度计算并分析其时空特征,同时将植被覆盖度与坡向、坡度、高程进行叠加,进一步探讨地形因子对植被覆盖度分布的影响。研究表明:(1)2000—2010年黄冈市植被覆盖度呈现出先上升后退化趋势,植被状况整体上表现为趋向恶化;(2)东部植被覆盖空间分布较高,中南部植被覆盖状况较稳定,而北部和中西部植被覆盖状况相对较低;(3)植被覆盖度在阴阳坡分布较稳定,植被覆盖度分布密集区域主要集中在高程为300米、坡度为15°-25°的区域内。研究结论对推进黄冈市植被资源可持续利用与管理具有重要借鉴意义。The spatial-temporal characteristics of of Huanggang City are analyzed based on Landsat TM/ETM＋ data of in 2000, 2005 and 2010. Vegetation coverage is calculated by two components sub-pixel model, and then its impact on the distribution of terrain factors such as slope direction, slope to elevation was explored. The results showed that vegetation coverage in Huanggang City form 2000 to 2010 was first increased and then decreased, and it was deterioration as a whole. Spatial distribution of vegetation coverage showed that the east was higher; south-central was stable, while the northern and Midwestern wasps relatively low. Vegetation coverage of the shady slope and sunny slope was stable, and the density areas were mainly concentrated in the height of 300 meters and slope of 15-25 degrees. These conclusions play a significant role in promoting the sustainable utilization and efficient management of vegetation resources in Huanggang City.

关 键 词：欠发达地区 植被覆盖度 植被指数 时空特征 

分 类 号：Q948.15[生物学—植物学]