生物土壤结皮的生物学功能及其修复研究

生物结皮是由土壤微生物、藻类、地衣和苔藓植物等孢子植物类群与土壤形成的有机复合体.它们可加速荒漠地区生态系统的演巷过程,预示荒漠亿生境的转变,对干旱、半干旱荒漠地区具有重要生态意义.本文综述了生物土壤结度的种类、分布和形成机理,介绍其对干旱地区物质循环、水文状况、土壤稳定性、石漠化治理等方面所表现出的生物学功能,并对干...

Studies of Biological Functions and Restoration of Biological Soil Crusts

Biological soil crusts(BSCs) are organic complexes formed by soil and spore plant taxa such as soil microorganisms,algae,lichens,bryophytes,etc.They accelerate the ecosystems' succession process and indicate the beginning of transition of the desert habitat.They are of great ecological significance to the arid and semi-arid desert regions.The types,distributions and formation mechanisms of BSCs were reviewed in this paper.At the same time,we also reviewed the biological functions in parts of the material cy...