东北高寒地区麦田土壤活性有机质和环境因素关系的灰色分析

土壤圈是地球各圈层物质循环和能量交换的枢纽，在土壤圈中的养分变化和生物结构变化对农业持续发展的影响起重要作用［６］。土壤有机质层是动态的生态系统。它是由植物、动物和微生物及其它环境因素共同作用而组成的物质和能量交换系统。其中土壤中有机质释放的具有生物活性的酶类也参与这一过程。这种作用与有机质的合成和分解密切相关，其作用集中表现在活性有机质的动态变化方面。所以土壤活性有机质可以表征土壤物质循环特征，也可用以评价土壤质量的优劣。有机质的生产和矿化过程是土壤中生物因素和非生物因素共同作用的结果。因此，…

Grey Model Analysis for Relationship between Soil Active Organic Matters and Environmental Factors in Northeast Heavy Frigid Region of China.

The relationship between seasonal variation of soil active organic matters and 18 environmental factors were studied by grey connected analysis in the northeast heavy frigid region of China.The primary and secondary factors of influencing the variation were founded out. Dota set was composed of the soil active organic matter and 4 environmentl fators(catalase,invertase,avaiable P and pH value), then the grey model GM(0,5)]was established: X 1 (1) (K)=-3.962891X 2 (1) (K)- 0.4794922 X 3 (1) (K)0.8242188X 4 (1) (K) 9.273438X (1) 5(K)-2.185547