沙雅县植棉土壤表层养分空间分布特征分析  

Spatial Distribution of Top Soil Nutrients in Cotton Field of Shaya County

作　　者：穆耶赛尔.肉孜 迪里木拉提.玉苏甫 玉苏甫.买买提 Muyassar Rozi;Dilmurat Yusup;Yusup Mamat(School of Geographic Science and Tourism,Xinjiang Normal University,Urumqi 830054,Xinjiang,China)

机构地区：[1]新疆师范大学地理科学与旅游学院,乌鲁木齐830054

出　　处：《农学学报》2018年第9期33-38,共6页Journal of Agriculture

基　　金：国家自然科学基金项目"新疆胃干河绿洲种棉土壤适宜性评价研究"(41261056);国家自然科学基金项目"新疆白刺属植物生态效益及栽培技术研究"(31260048)

摘　　要：研究旨在探讨植棉土壤表层养分分布特征及优化调节土壤养分元素提供科学依据。采用统计学、地统计学和空间分析方法,在Surfer 8.0软件的支持下,对植棉土壤中的速效养分元素之间的相关性进行了分析,并进行正态分布检验。运用ArcGIS和ENVI 5.0软件对研究区卫星遥感数据进行定标、大气纠正和几何精校正,得到了相关数据图像。结果表明:(1)由有机质、缓效钾、有效磷和速效钾的峰度值可以看出,数据的分布与正态分布相比较为陡峭,为尖顶峰。而由全氮、碱解氮等养分元素的峰度值可以看出,总体数据的分布与正态分布相比较为平坦。(2)有机质与碱解氮、全氮、有效磷、缓效钾、速效钾等养分元素在不同区域的相关性特征不一样且不明显。(3)沙雅县的所有数据都能通过0.05的检验水平,都服从正态分布,可以进行插值分析。(4)研究区北边绿洲主要是沿河道而分布,所以北边的养分元素含量较丰富;南边靠近塔克拉玛干沙漠,属于干旱区水资源比较缺乏,因此养分元素的分布含量比较少。The study aims to understand the nutrient distribution characteristics in cotton topsoil and to optimize the regulation of soil nutrient elements. The authors used statistical and spatial analysis methods, with the support of Surfer 8.0 software, analyzed the correlation of available nutrient elements in cotton field and carried out the normal distribution test. Then, the satellite remote sensing data of this study area were processed with Arc GIS and ENVI 5.0 software for scaling, atmospheric correction and geometric precision correction, and related data images were obtained. The results showed that（1） from the kurtosis value of organic matter, slowly available K, available P and available K, it was found that the data were relatively steep compared with normal distribution, namely sharp peak, while that of total N and available N showed relativelyflat distribution compared with normal distribution;（2） the correlation characteristics of organic matter were different from those of other nutrient elements（available N, total N, available P, slowly available K and available K）, but not significant;（3） all the data in Shaya were taken by the 0.05 test level, and obeyed normal distribution that could make the interpolation analysis;（4） the oasis in the north of the study area was mainly along the river, so the contents of nutrient elements in the north were rich; the southern part was near the Taklimakan Desert, which belonged to the arid area and lacked water resources, therefore the contents of nutrient elements were less.

关 键 词：养分元素 土壤 空间分布 正态分布检验 

分 类 号：S136[农业科学—农业基础科学]