生态环境对甘肃河西荒漠蜥蜴多样性的调控

本文对甘肃河西地区荒漠蜥蜴及其环境因子的生态数据通过数学建模，利用SPSS／PC^ 软件在计算机上运行求解，将各种生态因子按其对蜥蜴多样性的重要性程度排序，并通过聚类分析对12个调查地区分类。确定了决定甘肃河西多数地区荒漠蜥蜴多样性的主导因子依次是植被类型的多样性、海拔、降水量、年平均气温、7月平均最高气温。通常植被类型复杂多样，海拔低，降水量少，年均温和月平均最高气温的地区蜥蜴种类多；植被类型少，海拔高、降不量少、年均和7月平均最高气温低的地区蜥蜴种类少。由于特殊原因，少数地区各主导因子的作用有一定变化。从而揭示了环境因子调控蜥蜴多样性的综合机制。

The Adjustment and Control of the Ecological Enviroment to the Diversity of the Desert Lizard in Hexi of Gansu Province

By the means of modelling and using spss/pc* software to caculate the ecological data of the enviroment factors and the lizard in Hexi of the Gansu province in computer. We sequence all ecological factors according to the importance that affect on the diversity of the desert lizard, and classifty twelve investigation region according to cluster analysis, then obtain the dominannt factors that determine the diversity of phvynocephalus przewalskii in most Hexi region of Gansu province in order of importance, they are the diversity of vegetation types, altitude, rainfall, the averae temperature in the whole year, the average highest temperature in July. Generally, if some region has complexer and varied vagetation, the lower altitude, the less rainfall, the higher average temperature in the whole year and the highest average temperature in Jule, then the lizard species are more or the lizard species are less, for the special reason, the action of every dominant factor in few regions has some change, this further show the synthesize organism that the adjustment and control of the enviroment factors to the diversity of the desert lizard.