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耕地土壤质量评价需要一种策略 被引量:2

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摘要 世界上大多数国家的经济繁荣在很大程度上依赖于耕地土壤及其生产力维持的好坏。受不同影响因子的作用,土壤质量可能改善,也可能恶化。目前迫切需要形成一套方法及策略,以解释不同的土壤质量数据,并对特定的土地类型作出总体质量评价。本文提供了一种综合评价土壤质量的策略,其中采用的指标可反映土壤的理化及生物组分特征。另外有关气候条件及耕作活动(以往及现在)的信息也包括其中,在评价上述各变量组成的复杂因子数据库时需采用主成分分析法。
出处 《人类环境杂志》 1998年第1期4-8,共5页
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参考文献41

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同被引文献13

  • 1河南省环境保护局.河南省环境状况公报(2002)[N].河南日报,2003—06—03(7).
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