道地药材怀牛膝生长期间土壤微生物与酶活性研究  

Study on the Soil Microbe Populations and Enzyme Activities during the Growth in the Field of Achyranthes bidentata Blume.

作　　者：吴小丽[1] 黄进勇[1] 岳彩鹏[1] 王新民[1,2,3] 魏志华[2] 

机构地区：[1]郑州大学生物工程系,河南郑州450001 [2]郑州牧业工程高等专科学校,河南郑州450011 [3]中国医学科学院药用植物研究所,北京100094

出　　处：《安徽农业科学》2009年第23期11008-11009,共2页Journal of Anhui Agricultural Sciences

基　　金：河南省杰出青年基金项目(074100510018);中国博士后科(20070410616)

摘　　要：[目的]对怀牛膝的整个生育周期内土壤微生物和酶活性进行研究,探讨怀牛膝药材的道地性成因。[方法]以不同怀牛膝生长时期的不同层次土壤为材料,研究土壤微生物总数和酶活性的变化规律。[结果]怀牛膝不同生长时期土壤微生物总数和酶活性在种植前较高,苗期较低,增重期又增高,总体上表现为高-低-高的变化规律。土壤微生物的总数和酶活性随取样深度的增加均表现为降低趋势,0～20 cm的表土层明显高于20～40 cm的亚表层和40～60 cm深层。土壤微生物数量和酶活性之间表现出较高的相关性。[结论]怀牛膝在增重期土壤微生物数量和酶活性均最大。[ Objective ] The research aimed to study the changing pattern of the soil microbe populations and enzyme activities during the growth of Achyranthes bidentata Blume. and discuss the factors affecting the good quality of this herbal plant. [ Method] The soil microbe populations and enzyme activities were studied during the growth of Achyranthes bidentata Blume using the soils at different period and different soil depth. [ Result] The total microbe populations and enzyme activities had shown a trend of high- low- high during the experiment time （from July to November in 2008 ）, And there was a good correlation between the microbial populations and enzyme activities. With the depth added, the microbe populations and enzyme activities declined continually and the soil microbe populations and enzyme activities at 0 -20 cm depth were higher ihan that of 20 - 40 cm and 40 - 60 cm. [ Conclusion ] The soil microbe populations and enzyme activities were all the highest at the weight-gaining stage of Achyranthes bidentata Blume.

关 键 词：怀牛膝 微生物 酶活性 

分 类 号：S154.39[农业科学—土壤学]