内蒙古煤炭能源基地植被时空变化  

Temporal-spatial change of vegetation in coal energy base of Ordos,Inner Mongolia

作　　者：王艳伟[1] 王海龙[2] 王亚军[1] 

机构地区：[1]中国地质大学(北京)水资源与环境学院,北京100083 [2]核工业北京地质研究院,中核集团高放废物地质处置评价技术重点实验室,北京100029

出　　处：《世界核地质科学》2012年第2期119-124,共6页World Nuclear Geoscience

摘　　要：利用Modis数据集250 m分辨率植被指数数据分析了鄂尔多斯内蒙古能源基地植被的时空变化特征及其影响因子。研究表明:内蒙古能源基地的植被空间分布从东南至西北递减,其中东北部的准格尔旗、伊金霍洛旗及东胜区植被生长最好。内蒙古能源基地全区总体上植被指数NDVI值不高,植被指数值较低的地区占全区总面积的60%。时间演变上从2000～2008年整体上呈现变好的趋势。植被变好的区域可以占全区总面积的83.7%,植被变差的区域仅占1.39%,主要集中在东北部的准格尔旗、伊金霍洛旗、东胜区,以及局域地势低洼的沟谷地区及湖泊的周边区域。对其影响因子地形、地下水及降水的分析表明,大气降水是影响植被变化的最主要的因素。通过对鄂尔多斯盆地植被演变趋势及影响因子分析,能为能源基地的生态环境保护提供依据,促进人类,以及资源与环境的和谐发展。In the paper, the temporal-spatial change features of vegetation and its influencing factors in the Energy Base of Ordos, Inner Mongolia are studied by the methods of vegetation index with Modis 250 m resolution data. The study shows that the spatial distribution of vegetation decreases from southeast to northwest, and the vegetation in the northeast Jungar Banner, Ejin Horo Banner and Dongsheng district grows better. On the whole, the vegetation index NDVI of the Energy Base is not high, areas of lower vegetation index region accounts for 60% of the total area. From 2000 to 2008,the vegetation presented a good growing trend overall, areas which the vegetation had become better can account for 83.7% of the total area, while the worse area just 1.39% and good vegetation mainly concentrated in the northeast Jungar Banner, Ejin Horo Banner, Dongsheng district, region of local lowing terrain and the lake surrounding area. The factors affecting the vegetation include the terrain,underground water and precipitation and the atmospheric precipitation was believed the main factors. Through the analysis of vegetation evolution trend and influence factors in Ordos Basin, the paper provides the basis for the ecological environment protection so as to promote the harmonious development of human, resources, and environment.

关 键 词：鄂尔多斯 植被 NDVI 

分 类 号：Q948.156[生物学—植物学] P407[天文地球—大气科学及气象学]