摘要
为了解土壤酶在土壤生态中的作用，并从土壤酶活性的层面为研究烟区土壤生态质量、改良烟区土壤提供依据，采用方差分析、主成分分析、相关分析的方法，对南阳烟区有代表性的13个取样点的4类土壤酶活性及与其他土壤生态因子的关系进行研究。结果表明：土壤酶活性的综合指标是土壤生态因子中仅次于有机质方面综合指标的重要指标，其作为第2主成分方差占所有主成分方差的17.860％；土壤酶活性与土壤物理性状、土壤化学性状、土壤 C素、根际和非根际土壤微生物之间存在广泛的相关性，对土壤生态因子有表征作用。
Abstract
To understand the functions of soil enzymes in soil ecology and provide basis for researching and improving soil ecological quality , the activities of 4 soil enzymes from 13 typical soil samples in tobacco growing areas of Nanyang and their relations with other soil ecological factors were studied by analysis of variance, principal component analysis, and correlation analysis.The results showed that the integrated in-dicator of the activities of urease and catalase was the only principle component second to the integrated indicator of organic matter , and the es-timated communality was 17.860%.Correlative analysis showed there were obvious correlations between the activities of soil enzymes and soil physical and chemical properties, soil C, or soil microorganisms, which can indicate characterization of soil ecological factors.
基金项目
河南省烟草专卖局科技项目( HYKJ)
国家烟草专卖局南阳优质烟生产科技示范基地建设项目(110200401004)
烟草栽培重点实验室资助项目()
国家科技期刊平台
NSTL
维普
万方数据