盐碱地及其改良过程中土壤微生物生态特征研究进展

盐碱地由于土壤质量差、作物产量低,在全球分布广泛,已成为土壤退化中的世界性难题,土壤微生物可作为评价盐碱地土壤质量变化的一个重要指标。本文在系统分析、归纳总结国内外相关领域研究成果的基础上,综述了盐碱地及其改良过程中土壤微生物生态特征的研究进展,主要包括:盐碱地土壤微生物的种类和数量,土壤酶活性特征,微生物在盐碱地改良中的作用,盐碱地改良对土壤微生物的影响,以及用分子生态学手段研究盐碱地土壤微生物的进展情况等。在此基础上,提出了盐碱地土壤微生物未来应重点研究的几个方向。

Microbial Ecological Characteristics of Alkaline-saline Lands and Its Amelioration Process: A Review

Because of poor soil quality, low crop yield and wide distribution, alkaline-saline soil has become a worldwide problem of soil degradation. Soil microorganism could be used as an indicator to evaluate alkaline-saline soil quality. Based on the systematic analysis and summarization on the researches in related fields, the microbial ecological characteristics of alkaline-saline lands and its amelioration process was reviewed, which included: soil microbe species and quantity, soil enzyme activities of alkaline-saline lands, role of microbe in alkaline-saline lands amelioration, effect of amelioration on soil microbe, and current situation of research on soil microbe by means of molecular ecological methods. Based on the above, several important research directions of alkaline-saline soil microbe in the future were proposed.