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Position: Home > Articles > Spatial Variability Characteristics of Soil Nutrients in Jiuzhaigou County Using GIS Technique Hubei Agricultural Sciences 2015,54 (21) 5277-5280

基于GIS的九寨沟县域土壤养分空间变异特征

作  者:
陈春燕;杜兴端;李晓莉;李晓
单  位:
四川比尔投资咨询有限公司;四川省农业科学院
关键词:
耕地;土壤养分;空间变异特征;地统计学;GIS;九寨沟县
摘  要:
利用地统计学方法和GIS技术研究了四川省九寨沟县土壤有机质、全氮、碱解氮、速效磷、速效钾和p H的空间异质性。结果表明,土壤有机质、全氮含量丰富,处于一级水平;碱解氮、速效磷、速效钾和p H的空间异质性相对较大,碱解氮含量均值为89.95 mg/kg,速效磷含量均值为36.83 mg/kg,速效钾含量均值为144.70 mg/kg,p H均值为7.91。提出应增施碱解氮肥、分类施用钾肥和磷肥,注意补充养分与调节相结合,并采取相应的措施调节土壤酸碱度。
译  名:
Spatial Variability Characteristics of Soil Nutrients in Jiuzhaigou County Using GIS Technique
作  者:
CHEN Chun-yan;DU Xing-duan;LI Xiao-li;LI Xiao;Agricultural Information and Rural Economy Institute , Sichuan Academy of Agriculture Sciences;Center for Rural Development Research , Sichuan Academy of Agriculture Sciences;Sichuan Bier Investment Consulting Co., Ltd.;
关键词:
arable land;;soil nutrient;;spatial variability characteristics;;geo-statistics;;GIS;;Jiuzhaigou county
摘  要:
By the methods of geo-statistics and GIS, the spatial heterogeneity of soil organic matter, total nitrogen, available nitrogen, available phosphorus, available potassium, and p H in Jiuzhaigou County was studied. The results showed that the contents of organic matter and total nitrogen were at grade I level, and others such as available nitrogen, available phosphorus, available potassium, and p H had significant spatial heterogeneity, with mean content of 89.95 mg/kg, 36.83 mg/kg,144.70 mg/kg and 7.91 respectively. According to the analysis above, these measures that adding available nitrogen, applying potash and phosphate fertilizer differently, and regulating soil p H were suggested.

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