青海省民和县新民—李二堡地区土壤养分地球化学特征分析  

Geochemical Characteristics of Soil Nutrients in Xinmin-Lierbao Area of Minhe County,Qinghai Province

作　　者：付嵩 丁玉进[2] 张新远[2] 王伟[2] 李社宏[1] FU Song;DING Yujin;ZHANG Xinyuan;WANG Wei;LI Shehong(College of Earth Science,Guilin University of Technology,Guilin,Guangxi541006,China;Qinghai Geological Survey Institute,Xining,Qinghai810012,China)

机构地区：[1]桂林理工大学地球科学学院,广西桂林541006 [2]青海省地质调查院,青海西宁810012

出　　处：《现代地质》2018年第5期1103-1108,共6页Geoscience

基　　金：中国地质调查局地质调查项目"青海省民和县西沟地区1:5万三幅区域地质矿产调查项目"(12120114041301)

摘　　要：在青海省民和县新民—李二堡地区进行土壤地球化学调查的基础上,通过对574个土壤样品测试分析,研究其中有机质、氮(N)、磷(P)、钾(K)、硫(S)、水溶性钙(Ca)和镁(Mg)等养分指标和pH值等。结果显示,研究区主要属于碱性—强碱性土质,K富集,P中等偏富,N较贫乏,个别地区S超标。综合评价研究区,土壤养分丰富的一级和较丰富的二级土壤面积占31. 99%,中等级别占43. 8%,较贫乏占24. 07%,贫乏地区占0. 15%。研究结果为该区土壤改良和高效利用提供了参考。Based on the soil geochemical survey in XinminLierbao area,we collected 574 soil samples for geochemical analysis and testing.The pH values and nutrient indicators,such as organic matter,nitrogen(N),phosphorus(P),potassium(K),sulfur(S),water soluble calcium(Ca)and magnesium(Mg),were discussed.The study area mainly belongs to alkalinestrong alkaline,rich K,medium rich P,poor N soil,S exceeding in some areas.In the comprehensively researched evaluation,there are first and second rich levels accounting for 31.99%,the middle rich levels accounting for 43.8%,the lowmiddle rich levels accounting for 24.07%and the poor levels accounting for 0.15%in the study area.The results provide reference for soil improvement and high efficiency in the study area.

关 键 词：土壤地球化学特征 土壤养分 新民-李二堡地区 青海省民和县 

分 类 号：P595[天文地球—地球化学]