Research On Comprehensive Evaluation Of Soil Fertility Of Arable Land In Akesu Of Xinjiang

This article takes Akesu of Xinjiang as the research object, using the project of formula fertilization through soil testing data obtained, with Arc GIS, Access and the county land resources management information system software as the platform, analysis method, analytic hierarchy process and fuzzy mathematics method of cultivated land fertility of Akesu area, the spatial distribution of soil nutrients and abundance were studied using GIS space, the soil fertility was divided into several levels, and different soil fertility levels in the administrative area of cultivated land distribution and the basic situation was analyzed, which provide reference basis for the farmland soil improvement and the efficient use of the farmland in Akesu. The following three aspects are the main conclusions:(1) A scientific analysis of the cultivated soil and the site conditions in the study area were made. Meanwhile, we analyzed and evaluated the soil nutrient contents of the study area, according to the classification criterion of soil nutrient content. The average content of organic matter is 3.6g/kg, mainly concentrated in between 10-20g/kg; the content of effective phosphorus averaged 13.6mg/kg, mainly distributed in between10-20mg/kg; the average content of available is8mg/kg, mainly concentrated in between 100-150mg/kg; available zinc content is 1.23 mg/kg. Soil nutrient status can be summarized as: "missing" n, "" p, "" k " but lacking “zinc”.(2) The Akesu region has a total land of 614942.03 hm2. Fertility levels are divided into five, among which 88445.26hm2 belongs to the first class, accounted for 14.38% of the total area of cultivated land in the study area: the second class 118026.08hm2, accounted for 19.19% of the total arable land in the study area; the third class 219140.52hm2, accounted for 35.64% of the total arable land in the study area; the fourth class 129808.07hm2, accounted for 21.11% of the total arable land in the study area; the fifth class five 59522.10hm2,9.68% of the total arable land in the study area.(3) Fertility of cultivated land in Akesu area mainly belongs to the upper level, one or two main distributions in Kuche County, Xayar County, Awati county; three distributions in Akesu City, the new County, Wushi county and other places; four or five are mainly distributed in Baicheng County, Wensu County, Kalpin county.