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Soil Microbial Biomass and Enzymatic Activities in the Loess Hilly Area of Ningxia under Different Slope Positions
Authors
安韶山
成毅
马云飞
Publication date
1 January 2010
Publisher
Abstract
对宁夏固原黄土丘陵区天然草地不同坡位上土壤微生物量和酶活性进行研究,旨在了解坡位对土壤微生物量及酶活的影响,通过分析土壤微生物量及酶活性间的相关关系,进一步了解其内在联系。结果表明,在3个坡面地形部位(上坡位,中坡位和下坡位)上,土壤微生物量碳随着坡位的降低而减小;土壤微生物量氮在坡顶和坡底较高,坡中较低;微生物量磷在坡中部和坡底较高,坡顶较低。土壤酶活性基本不随坡位的变化而变化。显著性分析发现,微生物量碳和酶活性没有差异显著性,微生物量氮坡顶和坡底差异显著(P<0.05,n=3),微生物量磷坡顶较坡底和坡中差异显著(P<0.05,n=3)
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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