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塔里木河流域是国家最主要的棉区之一,评价该流域棉花种植的气候资源适宜性有一定的意义.首先,利用塔里木河流域23个气象站点1995-2014年的气候资料,借助SAS软件对日平均温度、日最高温度、日最低温度、日照时数和平均风速进行主成分分析,得到塔里木河流域棉花种植气候资源适宜性评价函数.然后,根据棉花种植气候资源适宜性评价函数对23个县市进行评分,取其与各县市的灌溉潜力值之和的加权平均值作为棉花种植适宜性综合得分,发现温度和灌溉条件是塔里木河流域棉花种植适宜性的主要影响因素.最后,运用SAS软件对棉花种植适宜性综合得分进行聚类分析,针对棉花种植适宜性,把该流域分别分为适宜区、次适宜区和不适宜区三类.
The Tarim River Basin is one of the most important cotton areas in the country and it is of significance to evaluate the suitability of climatic resources for cotton cultivation in this basin.First, based on the climatic data of 23 meteorological stations in Tarim River Basin from 1995 to 2014, The daily average temperature, the daily maximum temperature, the daily minimum temperature, the sunshine hours and the average wind speed were used to get the evaluation function of cotton climatic resource suitability in the Tarim River Basin.According to the cotton climatic resource suitability evaluation function, 23 Counties and cities to take the weighted average of the sum of irrigation potential values of counties and cities as the integrated score of cotton planting suitability and found that the temperature and irrigation conditions are the main factors affecting cotton suitability in the Tarim River Basin.Finally, SAS software cluster analysis of cotton planting suitability comprehensive score, for the cotton planting suitability, the watershed were divided into suitable area, sub-suitable area and not suitable for the three categories.