【摘要】 <正> 1 引言土壤酶是土壤代谢的动力,对推动生态系统的能量流动和物质转化过程产生重要作用。土壤酶来源于土壤中的植物、微生物和动物等有机体,而土壤的理化因素又影响着酶的活性。因此,土壤酶活性的变化与土壤环境的生物因素和非生物因素都密切相关。对土壤酶活性与土壤环境因素之间的关系进行综合分析,有利于了解土壤的整体功能。鉴于此,我们在1993年对东北高寒地区麦田土壤酶活性和环境因素的季节变化进行了系统的调查研究。更多还原

【Abstract】 This study was made from April to September in 1993. The relationships between seasonal quantitative variation of soil cellulase, urease, invertase, eatalase, dehydrogenase activities and 8 environmental factors were studied, and the primary and secondary factors influencing enzymatic activities were sought out through grey connected analysis.更多还原