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不同措施下土壤侵蚀特征值及其影响因子典型相关分析
Authors
丁新辉
谢永生
骆汉
魏富娟
Publication date
1 January 2017
Publisher
Abstract
根据东北沟小流域观测裸地、等高耕种、水平阶等 3 种措施径流小区的径流量和泥沙量资料,研究不同 措施下径流泥沙与降雨等因素的相互关系,采用典型相关分析法分析不同措施下影响土壤侵蚀的主要因子。 结果表明,在裸地和等高耕作措施下,径流深在土壤侵蚀特征因子中起主要作用,而在水平阶措施下,土壤流 失模数在土壤侵蚀特征因子中起主要作用。不同措施下土壤侵蚀影响因子不同,在裸地和水平阶措施下,可 以通过降雨量、雨强和雨前土壤含水量等土壤侵蚀影响因子来预测径流深和土壤流失模数,而在等高耕作措 施下,用降雨量、雨强、降雨侵蚀力等土壤侵蚀影响因子预测土壤侵蚀特征因子更为准确。</p
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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 26/02/2019