土地盐碱荒漠化预警理论及实证研究  

Precaution Theory and Study on Alkal ine Desertification of Soil

作　　者：卞建民[1,2] 林年丰[3] 汤洁[3] 

机构地区：[1]中国科学院地球化学研究所环境地球化学国家重点实验室 [2]吉林大学环境与资源学院,吉林长春130026 [3]吉林大学环境与资源学院

出　　处：《农业环境科学学报》2003年第2期207-209,共3页Journal of Agro-Environment Science

基　　金：国家自然科学基金项目资助(40072093和40273047)

摘　　要：提出了土地盐碱荒漠化预警的概念,建立了土地盐碱荒漠化预警理论。通过对盐碱荒漠化灾害成因系统的分析,采用多目标模糊优选模型进行荒漠化预警研究,为吉林省西部生态环境的保护和资源开发提供科学依据。The alkaline desertification due t o soil alkalinization and secondary alkalinization has been expanded in time and space in our arid and semi -arid zone,which has been also regarded as a deeply influ enced eco -environmental problem.I n the paper,the authors put forwards the concept of alkaline desertification and set up a precaution theory.Based on the cause systemon the disaster,a comprehensive precaution study has been done and the results reveal the precaution degree in quantitative a nd qualitative,it is useful to protect the environment an d develop the resources.

关 键 词：土地 盐碱荒漠化 预警理论 灾害系统分析 

分 类 号：X825[环境科学与工程—环境工程]