摘要
本文在遥感和GIS技术的支持下,以景观生态学为理论指导,通过引入景观格局指数和景观类型转移矩阵,对太仆寺旗近二十年景观格局动态变化进行研究,揭示景观格局在时间和空间上的变化特征和规律。太仆寺旗从1988年到2007年近20年间景观动态变化最为显著的是耕地景观的面积在逐渐减少,草地景观的面积在逐渐增加。景观格局上,蔓延度指数呈上升趋势,说明景观中存在连通性较好的优势斑块类型;多样性指数和均匀度指数呈下降趋势,说明各景观类型所占比例差异增大,景观组分趋向不均匀分布,景观异质性下降;优势度指数增加,说明优势景观类型的份额增加,即草地景观的主导地位在增强。
In the remote means of landscape index and recent two decades, sensing and GIS technology support, under the guide of landscape ecology theory, by landscape type transition matrix, this article studied in the area of TaiPuSiQi in the exposed the landscape pattern changing characteristics and law in terms of time and space. The dynamic landscape changes conspicuously is that the area of cuhivated land decreased gradually and lawn landscape rised gradually, in TaiPuSiQi from 1988 to 2007 in almost 20 years. Landscape pattern, spreading index rising showed that there are well continuity superiority patches types in landscape; The trend of diversity index and even- ness index decreases , showed that the diversities of acreage ratio of various landscapes and the extent of landscape fragmentation have augmented a lot , the distribution of landscape ingredient was not well -proportional and Land- scape heterogeneity down; The dominance index increased , showed that the share of superiority landscape type increase or lawn landscape dominance of the growing.
出处
《阴山学刊（自然科学版）》
2012年第3期50-55,共6页
Yinshan Academic Journal(Natural Science Edition)
基金
内蒙古自然基金项目(2012MS0620)
内蒙古科技计划项目"内蒙古数字农牧业GIS集成开发与应用示范"的资助
关键词
太仆寺旗
景观格局
动态变化
Taipusi
landscape pattern
dynamic changes
