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Responses of Soil Nutrients to Land Use Changes from Rice Production to Vegetable Cultivation or Viticulture: A Case Study in Fuyang City, Zhejiang Province
Authors
吴龙华
滕应
+3 more
潘霞
陈励科
骆永明
Publication date
1 January 2013
Publisher
Abstract
以浙江杭州郊区为例,研究了土地利用方式变化对土壤养分的影响,以期对土地利用方式的选择提供借鉴。选取当地3种典型的土地利用方式变化类型,调查由传统水稻生产改为种植高经济收益的芦笋、葡萄或芥菜后不同年限对土壤养分变化的影响。结果表明,水稻田改种芦笋后,除铵态氮以外,土壤表层中的其他养分(有机碳、全氮、全磷、全钾、硝态氮、有效磷、速效钾)浓度均显著提高(P<0.05);全氮、全钾以及硝态氮的增幅延续到剖面深层。其他两种类型的土地利用方式变化也有相似规律,其中有效态养分增幅更为明显。土地利用方式变化对养分分布也有一定的影响,水稻田改种芦笋后全氮和全钾的浓度增加最为显著,而改种葡萄后变化最大的养分是速效..
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Last time updated on 29/11/2016