| 摘要: |
| 首次对锡林浩特市30年来土地利用/覆被变化情况进行系统研究,为锡林郭勒大区域内提供时间长跨度、空间小尺度的案例研究。采用定量分析与数学统计模型相结合的方法,采用土地利用数量变化模型、程度变化模型和结构的空间变化模型对分类系统中的Ⅰ级土地利用类型进行分析研究。1)锡林浩特市土地利用变化明显;2)测算得到各土地利用类型的变化幅度、单一动态度、综合动态度、土地开发度、土地耗减度等指标显示,锡林浩特市2000—2010年是土地利用变化较大的时期;3)影响锡林浩特市土地利用变化的主导因素是国家政策的调整。锡林浩特市30年来土地利用程度呈现逐年提高趋势,土地利用程度变化量指标和土地利用程度变化率指标均大于0,表明锡林浩特市土地利用正处于迅速发展时期。 |
| 关键词: 土地利用/覆被变化 锡林浩特市 动态变化 |
| DOI：10.11841/j.issn.1007-4333.2015.04.27 |
| 投稿时间：2014-10-20 |
| 基金项目:中国农业科学院创新工程草原非生物灾害防灾减灾团队(CAAS-ASTIP-IGR2015-04);内蒙古自治区自然科学博士基金项目(2014BS0329);中央级公益性科研院所基本科研业务费专项资金项目(1610332014010);国家自然科学基金地区项目(31460126) |
|
| The changes of land use and vegetation during recent 30 years in steppe grassland of Xilinhot,Inner Mogolia |
|
YANG Xia1,2, WEI Zhi-jun1, YUN Xiang-jun3
|
| (1.College Ecology and Environmental Science, Inner Mongolia Agricultural University, Hohhot 010010, China;2.Institute of Land Survey and Planning of Inner Mongolia, Hohhot 010020, China;3.Institute of Grassland Research of CAAS, Hohhot 010021, China) |
| Abstract: |
| This paper is concerned on systematically calculating and analyzing the changes of land use and vegetation between 1980 and 2010 in Xilinhot.The aim was to provide a long time span, small-scale empirical case space for Inner Mongolia region of LUCC research.The used methods included mathematical and statistical analysis and quantitative analysis.The land types were croland, forestland, grassland, wetland, construction land, and unused land.The measured eight indicators were the magnitude of land-use change, single land use dynamic degree, comprehensive land use dynamic degree, land use and development degree and depletion of the land use, the composite index of land use degree, the amount of land use change degree and the rate of land use change degree.The results showed that the land use in Xilinhot changed significantly during 30 years.The national domestic policies was the dominant factor which affected the land use change.Xilinhot was currently at land use development period.The amount of land use change degree and the rate of land use change degree were all greater than 0, and with an upward tendency.It was evident that Xilinhot was currently in the development stage of land use. |
| Key words: land use vegetation Xilinhot dynamic changes |
