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tea root layer
相关语句
  相似匹配句对
     Root
     根
短句来源
     The Research on Bag Tea of the Root of Kudzu Vine by Water Leaching Rate and Thin-layer Chromatography
     葛根袋泡茶的水浸出率及薄层层析法研究
短句来源
     Soil microbial biomass carbon in the tea plant root layer increased significantly with the age of tea plants.
     茶树根层土壤微生物生物量碳随树龄增长而增加 ,但与茶树根层土壤可培养微生物总量无显著相关。
短句来源
     Soil basal respiration and enzyme activities in the root-layer soil of tea bushes in a red soil.
     红壤茶树根层土壤基础呼吸作用和酶活性
短句来源
     Root Activity of Tea Plant and the Relevant Factors
     茶树根系活力及其相关因子
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This study investigated population distribution and community structure of microorganisms and related ecological factors in the root layer of 10-, 40- and 90-year old tea plants, respectively. The populations of soil eutrophic bacteria, fungi, actinomycetes and Bacillus were measured by the plate-count method. Soil acidity, organic carbon, total nitrogen and total soluble phenol of the soil increased with the age of tea plants. Populations of microbes in the tea root layer varied with the age of tea...

This study investigated population distribution and community structure of microorganisms and related ecological factors in the root layer of 10-, 40- and 90-year old tea plants, respectively. The populations of soil eutrophic bacteria, fungi, actinomycetes and Bacillus were measured by the plate-count method. Soil acidity, organic carbon, total nitrogen and total soluble phenol of the soil increased with the age of tea plants. Populations of microbes in the tea root layer varied with the age of tea plants. Eutrophic bacteria and actinomycetes and total microbes appeared as larger colony-forming-unit in the root layer of 10-year old tea plant, as compared with those of 40- and 90-year old tea plants, which were close each other. The size of fungi in the root layer of 10- and 90-year old tea plants was similar but larger than those in the root layer of 40-year old tea plants. The quantity of Bacillus, in the root layer of 40-year old tea plants was greater than those in the 10- or 90-year old tea plant root layer, with the latter having similar values. Soil microbial biomass carbon in the tea plant root layer increased significantly with the age of tea plants. Simultaneously, a significant correlation was not observed between microbial biomass carbon and total colony-forming microorganisms measured by the plate-counting method. Each of the soil properties including organic carbon, total soluble phenol, total nitrogen and pH, had a significant or very significant correlation with microbial biomass carbon.

研究了红壤茶园中不同树龄茶树根层土壤微生物区系分布和种群结构的变化及其生态学因子。结果表明 ,随着树龄的增长 ,茶树根层土壤的酸度增加 ,pH值下降 ,土壤交换性酸组成从交换性H+为主转变为以交换性Al3+ 为主 ;同时 ,土壤有机碳、可溶性酚总量和全氮含量随树龄而增加。细菌、放线菌以及微生物总量以树龄 1 0年的茶树根层土壤中数量最多 ,4 0年和 90年树龄的茶树根层土壤中的较接近 ;树龄 1 0年和 90年的茶树根层土壤中真菌数量相当 ,其大于 4 0年树龄的茶树根层土壤真菌数量 ;而芽孢杆菌数量以 4 0年树龄茶树根层土壤最多 ,而 1 0年和 90年树龄茶树的接近 ;茶树根层土壤微生物生物量碳随树龄增长而增加 ,但与茶树根层土壤可培养微生物总量无显著相关。茶树根层土壤微生物生物量碳与土壤pH、有机碳、可溶性酚和全氮分别呈显著 (p<0 0 5 )或极显著 (p<0 0 0 1 )相关。

 
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