风沙土成土演变过程中土壤微生物生物学特性研究进展与展望

Study Progresses and Prospect on The Ecological Characteristics of Soil-inhabiting Microorganism in Soil Forming Process of Aeolian Sand Soil.

对风沙土成土演变过程中的土壤微生物分布及组成、微生物生理群、微生物活性及固沙植物的根际微生物特性等微生物学特性研究成果进行了归纳和总结,得出了在风沙土成土演变过程中,随着生境的不断变化,各类微生物的数量显著增加,其分布随着土层深度、种植年限和季节的不同而不同、微生物活性也明显增加。流沙上种植固沙植物后,根系产生的各种代谢物改变了根际的理化环境,促进了根际微生物的发展,同时微生物的旺盛繁殖,也促进了风沙土向良性方向演变。

The article conclude the research study result that about soil microbial distribute and component,physiological group of the microorganism,microbial activities and rhizosphere microorganisms in soil forming process of aeolian sand soil.In the process,the microbial amount and activities remarkable improved,the distribution different with section plane,forest ages and season.The amount of physiological group of microorganism have a greatly improved.The sand-fixing plants planted on drift sand dunes has well-developed rhizophere microorganisms.The microorganism's vigorous reproduction enhanced the soil form of aeolian sand soil.