兰州市土地利用经济生态位测度

The measure of land utilization economical-ecological niche of Lanzhou City

生态位理论是生态学重要的基础理论之一,已在各个方面得到应用。将土地视为具有生态智慧的特殊生命体,在对物种生态位进行解析的基础上,提出土地利用生态位的概念并阐述其内涵。进而以兰州市土地利用为研究对象,在生态位理论的基础上,运用土地利用经济生态位模型,从生态位的态、势、扩充压缩度的角度对兰州市土地利用加以分析,对兰州市土地利用生态位宽度进行测度,分析兰州市土地利用变化,为兰州市土地利用结构优化提供生态学方面的参考。

The niche theory is one nf the important pect. We regarded the land as the ecology wisdom ecology basic theories , obtained the application in each aswhich is the special life body. Based on the analysis of the species niche, the niche of land utilization concept was proposed and its connotation was elaborated. Then, tak- ing the Lanzhou city land utilization as the research ohjeet, in the foundation of niche theory, the model of eco- nomical niche of land utilization, the land utilization situation of Lanzhou city was analyzed. The land utilization niche width of Lanzhou city was measured, land utilization change of Lanzhou city was analyzed, which supplied the reference of ecology aspect for the optimization of land utilization structure of Lanzhou city.