灌溉排水学报2025，Vol.44Issue(7)：54-63,10.DOI:10.13522/j.cnki.ggps.2024404
新疆奇台县主粮作物农田土壤质量空间变异特征分析
Spatial variation of soil quality in key grain-producing areas of Qitai County,Xinjiang
摘要
Abstract
[Objective]Qitai County,a major grain-producing area in Xinjiang,is adopting modern agricultural technologies such as aerial pest control,Beidou navigation,precision sowing,and integrated water-fertilizer management.Taking Yaozhanzi village as an example,this paper analyzes the spatial distribution of soil quality in the region to provide a baseline for intelligent and precise agricultural management.[Method]After harvesting wheat and corn,69 soil sampling points were selected at 700 m intervals across the region.Samples were taken from the 0-40 cm soil layer for determining soil particle size composition and nutrient contents.Classical statistical methods were used to analyze the correlations between indicators,and geostatistical methods were used to assess the spatial variation of each indicator.Soil quality was evaluated using the soil quality index(SQI).[Result]Soil texture in the study area is coarse and alkaline.Soil pH,soil organic matter(SOM),and soil bulk density showed low spatial variability,whereas other soil indicators show moderate variability.Soil available iron,manganese,zinc,SOM,and soil bulk density showed moderate spatial autocorrelation,while other indicators showed strong spatial autocorrelation.Overall,soil quality was above average.[Conclusion]The coarse nature of soil texture in the region resulted in poor water and nutrient retention.Therefore,a high-frequency,low-volume drip irrigation strategy is recommended to reduce nutrient and water leaching.Additionally,applying an appropriate amount of acidic organic fertilizer can increase soil organic matter,improve soil structure,and enhance nitrogen and zinc fertilizer use efficiency.关键词
空间变异特征/经典统计学/地统计学/土壤质量指数/主粮作物农田Key words
spatial variability characteristics/classical statistics/geostatistics/soil quality index/main grain crops in farmland分类
农业科技引用本文复制引用
范子康,王春霞,俞靖,秦达,杨跃发,王宏鑫..新疆奇台县主粮作物农田土壤质量空间变异特征分析[J].灌溉排水学报,2025,44(7):54-63,10.基金项目
国家重点研发计划项目(2022YFD1900804) （2022YFD1900804）
国家自然基金地区科学基金项目(52369012) （52369012）
