摘要
本文利用遥感图象分析技术对内蒙古锡林郭勒草原植被各层次空间结构(大、中、小、微)及其与相应环境因素之间的关系进行了分析,并对各类草原的地上生物量及理论载畜量给予估算。分析结果表明;锡林郭勒草原植被的地域分异规律明显;植被的大结构主要受大气候因素及大的地貌单元控制:地形、水文网络是影响植被中结构的主要因素:而植被微、小结构的形成主要受局部地形、地表水、基质及人为干扰因素的制约。
This paper is analysed the ecological relationship between the spatial structure of each vegetation level (large, medium, small, fine) of the Xilin Gol Steppe in Inner Mongolia and the corresponding enviromental factor by analysing their remote sensing images. The ground biomass and the theoretical livestock-carrying capacities of each vegetation type are estimated. The results show that the separation tendency of vegetation of Xilin Gol Steppe is clear, the large structure of vegetation is determined by large climatic factors, and large geomorphologic unit, and the landform and hydrological network are the primary factors affecing the medium structure of vegetation, but the small and micro structures are controlled mainly by local landform, surface water, matrix and human activities.
关键词
锡林郭勒草原
植被结构
遥感图象
Inner Mongolia
Steppe
Vegetation structure
Remote sensing image
