新疆三工河流域人工绿洲演化特征的综合评价

Comprehensive evaluation on the evolution characteristics of artificial oasis in Sangong River Basin of Xinjiang,Northwest China

以新疆三工河流域的阜康绿洲、阜北绿洲和整个流域农业绿洲作为3个评价单元,从绿洲景观结构、植被建设、水资源利用程度、绿洲生产力水平、社会经济状况、土壤结构、能值特征和水利工程建设水平8个方面对干旱区人工绿洲的演化特征进行了综合评价。因子分析法表明,在42项二级指标中,有2个因子的特征值大于1,其特征值之和占总方差的100%,能够解释全部的信息含量,可归属为水利工程建设特征因子和社会经济生产力因子。发育度分析表明,阜康绿洲为较高开发程度的绿洲,阜北绿洲为潜在开发程度的绿洲,整个流域农业绿洲为弱开发程度的绿洲。

Taking the Fukang Oasis, Fubei Oasis, and the entire watershed agricultural oasis in Sangong River Basin of Xinjiang, Northwest China as the three evaluation units, the evolution characteristics of artificial oases in arid zone was comprehensively evaluated from the aspects of oasis landscape structure, vegetation construction, utilization degree of water resources, oasis productivity level, social and economic conditions, soil structure, emergy characters, and hydro- engineering construction level. The factorial analysis showed that among the 42 second-level indi- ces of artificial oasis maturity, there were two factors with the eigenvalues higher than 1, and the sum of the eigenvalues was 100% Of the total variance, which can explain all variable informa- tion, and can be attributed to the hydro-engineering construction feature factors and society-econ- omy-productivity factors. The maturity analysis showed that Fukang Oasis was a highly developed oasis, Fubei Oasis was a potentially developed oasis, and the entire oasis in Sangong River Basin was a weakly developed oasis.