山东农业大学学报（自然科学版）2017，Vol.48Issue(4)：562-569,8.DOI:10.3969/j.issn.1000-2324.2017.04.018
蔬菜区土壤有机质空间变异特征分析
Spatial Variation Characteristics Analysis of Soil Organic Matter in the Vegetable Field
摘要
Abstract
Taking the concentrated vegetable growing areas in Xi'an as an example, this paper took geostatistics to analyze the spatial variability and spatial abundance level in 369 soil samples and study the effect of soil properties on organic matter content with variance analysis and correlation analysis. The results showed that the optimal variation function of soil organic matter was exponential model with 50.0%nugget effect in vegetable fields, there was medium spatial correlation within the scope of 2661 m, and spatial variability of soil organic matter was most obvious in southeast-northwest. The soil organic matter content was at a lower-middle-level in vegetable fields, the content of soil organic matter was below 15 g/kg at the junction of Lintong and Gaoling, Zhouzhi and Huyi, where should take measures to increase the soil organic matter content. The content of soil organic matter increased with the decrease of soil particles. At the same time, the content of soil organic matter in cinnamon soils was the highest, and the lowest in the new soil. Soil organic matter content had significant negative correlation with the planting age and pH value. The results can provide decision-making basis for the relevant vegetable cultivation departments.关键词
土壤有机质/空间变异/地统计学/蔬菜Key words
Soil organic matter/spatial variation/Geo-statistics/vegetable分类
农业科技引用本文复制引用
王晶,杨联安,杨煜岑,冯武焕,于世锋,吕爽,张彬..蔬菜区土壤有机质空间变异特征分析[J].山东农业大学学报（自然科学版）,2017,48(4):562-569,8.基金项目
教育部人文社会科学研究规划项目:基于地统计学和 GIS的土壤网格采样技术研究(10YJA910010) （10YJA910010）
陕西省农业科技攻关项目:果树促生微生物菌肥及精准化施肥技术研究(2011K02-11) （2011K02-11）
西安市科技计划农业技术研发项目:蔬菜产区环境评估和土壤调控修复技术(NC1402) （NC1402）
西安市科技计划农业技术研发项目:基于Android平台的嵌入式猕猴桃施肥管理系统开发(NC150201)及西北大学"211 工程"研究生自主创新项目(YZZ15013) （NC150201）
