草地土壤微生物及酶活性对氮沉降的响应研究进展

区域性的氮沉降增加近年来受到广泛关注,有研究预测在未来的几十年内陆地表面的活性氮沉降量会不断增加。 草地作为陆地生态系统分布最广的植被,更易受氮沉降增加的干扰。土壤微生物能够影响土壤生态系统的结构、功能及过程,是维持土壤生产力的重要组分。因此,本文综述了氮沉降增加对草地土壤微生物及细胞外酶活性的影响研究进展,并对未来研究进行展望,以期为未来相关研究提供一些参考。

Review on the response of soil microbes and extracellular enzymes to nitrogen deposition in grassland

The increase of regional nitrogen deposition has received widespread attention in recent years. Studies have predicted that the amount of active nitrogen deposition on the land surface will continue to increase in the next few decades. As the most widely spread vegetation in the terrestrial ecosystems, grassland is more susceptible to interference from increased nitrogen deposition. Soil microbes, an important components to maintain soil productivity, could affect the structure, function and process of soil ecosystems. In this article, we reviewed the research progress of the effects of increased nitrogen deposition on grassland soil microbes and extracellular enzyme activities, and prospects for future research, hoping to provide some references for future related research.