西藏地区不同生态系统土壤理化特征及脆弱生态区保护与修复  

Soil Physical and Chemical Characteristics of Different Ecosystems in Xizang and Protection and Restoration of Vulnerable Ecological Areas

作　　者：常博然 陈茹岚 薛会英[2] CHANG Boran;CHEN Rulan;XUE Huiying(College Plateau Ecology Institute Xizang Agriculture and Animal Husbandry,Linzhi 860000,China;Resources and Environment College,Xizang Agriculture and Animal Husbandry,Linzhi 860000,China)

机构地区：[1]西藏农牧学院高原生态研究所,西藏林芝860000 [2]西藏农牧学院资源与环境学院,西藏林芝860000

出　　处：《黑龙江农业科学》2024年第2期113-119,128,共8页Heilongjiang Agricultural Sciences

基　　金：国家自然科学基金(52170030);西藏自治区第三次土壤普查区级工作技术支撑(603323027)。

摘　　要：土壤在陆表环境中扮演着重要的角色,是陆地生态系统的基本组成成分。土壤的理化特性会影响生物和环境之间的能量传递和物质交换,同时也会对植物群落的组成和生态系统的稳定性产生限制。本文从青藏高原的脆弱生态情况出发,围绕土壤有机质、土壤温、湿度和土壤氮、磷、钾,阐述土壤理化性质与生态环境间相互作用关系,浅析不同生态系统(草原生态系统、湿地生态系统和寒地荒漠生态系统)土壤理化特征,并对脆弱生态系统存在的问题提出应对措施。Soil plays an important role in the land surface environment and is the basic component of terrestrial ecosystem.The physical and chemical properties of soil will affect the energy transfer and material exchange between organisms and the environment,and also limit the composition of plant communities and the stability of ecosystems.Starting from introducing the fragile ecological situation of Qinghai-Xizang Plateau,this paper expound the interaction between soil physical and chemical properties and ecological environment around soil organic matter,soil temperature and humidity and soil nitrogen,phosphorus and potassium,analyzed the soil physical and chemical characteristics of different ecosystems(grassland ecosystem,wetland ecosystem and cold desert ecosystem),and proposed some countermeasures for the problems existing in fragile ecosystems.

关 键 词：青藏高原 生态系统 土壤理化性质 

分 类 号：X171.1[环境科学与工程—环境科学] S153[农业科学—土壤学]