基于植被-侵蚀动力学的黄土高原分区及治理策略  

Zoning and management strategies for the Loess Plateau based on vegetation-erosion dynamics

作　　者：王费新[1] 王兆印[1] 

机构地区：[1]清华大学水利水电工程系水沙科学与水利水电工程国家重点实验室,北京100084

出　　处：《清华大学学报（自然科学版）》2007年第12期2119-2122,共4页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(40371010)

摘　　要：为了控制水土流失,修复生态退化,对于中国黄土高原进行科学区划。以植被-侵蚀动力学理论为依据,将黄土高原划分为4个类型区:长城沿线区、黄土丘陵沟壑东区、黄土丘陵沟壑西区和黄土高原沟壑区。利用植被-侵蚀状态图,探讨了这4区控制侵蚀和修复植被的前景。该文所提出的综合治理策略是:黄土高原生态环境恶劣,只有黄土高原沟壑区具有自我修复功能,可通过治理,形成能承受一定程度破坏的植被;其他3区,只有通过小流域高强度治理,才能有效地改善植被和减少侵蚀,并需要持续的防护和治理才能维持。Scientific zoning of ecologically degraded erosion areas is needed in integrated management strategies. This paper studies zoning of the Loess Plateau based on vegetation-erosion dynamics and proposes various management strategies for the different zones. The Loess Plateau was divided into 4 zones with various vegetation-erosion levels, i.e. the northwestern sandy area along the Great Wall, the eastern hilly-gullied area, the western hilly-gullied area, and the gullied plateau area. Only in the gullied plateau area of the Loess Plateau can self-restoration vegetation develop with human intervention for reforestation and erosion control. In the other three zones, the vegetation can be improved in small watersheds by high intensity reforestation and erosion control engineering, but the improved areas will need continual management.

关 键 词：水土保持 植被-侵蚀动力学 黄土高原 流域治理 

分 类 号：S157[农业科学—土壤学] Q948[农业科学—农业基础科学]