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Features of Soil Organic Carbon Under Different Land Use in Mountain Area of Southern Ningxia
Authors
刘梦云
安韶山
常庆瑞
Publication date
1 January 2005
Publisher
Abstract
在宁夏固原上黄试验区,对灌木林地、农地、天然草地、果园和人工草地5种土壤的化学性质进行了分析,探讨了土地利用方式对土壤有机碳的影响。结果表明1表层土壤有机碳含量表现为天然草地>灌木林地>农地>人工草地>果园;2灌木林地和果园土壤有机碳含量随土层加深而变化幅度较小,而天然草地、人工草地和农地随土层加深而递减的幅度较大;30~20cm天然草地和灌木林地的有机碳密度普遍偏高,而农地、果园和人工草地则均较低;而20~40cm和0~40cm的土层内土壤有机碳密度相比之下灌木林地、农地和天然草地相差不大,而果园和人工草地相对较低
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018