YUAN Jia,SHEN Fei,WANG Tiantian,et al.Impact of Land Use/Cover Change on Regional Net Primary Productivity in Wanjiang City Belt During the Period from 2000 to 2010[J].Research of Soil and Water Conservation,2016,23(05):245-250.
2000-2010年皖江城市带土地利用/覆被变化对区域净初级生产力的影响
- Title:
- Impact of Land Use/Cover Change on Regional Net Primary Productivity in Wanjiang City Belt During the Period from 2000 to 2010
- 分类号:
- F301.2;TP79;Q948
- 摘要:
- 基于2000年、2005年、2010年3期Landsat TM/ETM遥感影像解译数据，定量分析了近11年来皖江城市带土地利用时空变化；利用MODIS/NDVI数据及气象数据，基于改进的CASA模型估算了同期植被NPP，分析、评估了地类转换对研究区植被NPP的影响程度。结果表明：2000—2010年，研究区的土地利用格局变化显著，主要表现为耕地、草地、未利用土地面积不断减少，建设用地、水域面积持续增加，林地面积先减后增；土地利用类型转换以耕地的显著减少和建设用地的快速增加为主要特点；近11年来，研究区植被NPP整体上呈增加趋势，且呈现出南高北低的空间分布格局；各用地类型的NPP均值都在增加，林地NPP增幅最大；长江以北地区植被NPP呈逐渐增加趋势，沿江和长江以南地区的植被NPP变化趋势反之；耕地转为建设用地造成的NPP损失量最大。
- Abstract:
- Based on three periods of Landsat TM/ETM remote sensing image interpretation data in 2000, 2005 and 2010, the temporal and spatial variation of land use of Wanjiang City belt in recent 11 years were quantitatively analyzed. In addition, using the MODIS/NDVI data and meteorological data, the NPP of the study area were estimated by using the improved CASA model, then the effect of the land class conversion on NPP were analyzed and evaluated in the research area. The results show that the land use pattern of the study area changed significantly from 2000 to 2010, it shows that the areas of farmland, grassland and unused land reduced, construction land and water area increased, forestland area increased after reduction; the main characteristic of land use type conversion was significantly reduce of the farmland and rapidly increase of construction land; in the past 11 years, the NPP of the study area showed an increasing trend, the spatial distribution pattern of high level in north and low level in south; the mean NPP of each land use type was increased, and forestland increased most rapidly; the vegetation NPP in the north of the Yangtze River region showed a trend of gradual increase, while along and south of the Yangtze River regions share the different changing trend; NPP loss resulting from the conversion of farmland to construction land was the largest.
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备注/Memo
收稿日期:2015-10-21;改回日期:2015-11-04。
基金项目:安徽师范大学研究生科研创新项目（2014ysk091）；安徽师范大学科研培育资助项目（2013XMPY12）；安徽高校省级学科（地理学）重大建设资助项目
作者简介:袁甲(1987-),男,安徽阜阳人,硕士研究生,研究方向为资源遥感与土地利用。E-mail:fyyjmm2008@126.com
通讯作者:沈非(1975-),男,安徽明光人,副教授,硕士生导师,主要从事资源环境与地理信息系统应用研究。E-mail:523022@qq.com