关键词: 河间地区, 沙漠化成因, 三性特征, 治理模式

Abstract: Sandy land in the study area is one part of Songnen Sandy Land. Desertification is one of the main factors to influence the development of agriculture and animal husbandry, which makes eco-environment deterioration. Sandy land distribution features are that the northwest-southeast orienting one is composed of sand ridges, the southwest-northeast one is composed of sand dunes. Desertification in this area is light and potential. The main reasons are rich sand source, drought and strong wind in winter and spring, as well as artificial destroy to vegetation and landcover. This sandy land formed before 6000 a BP. The desertification development presents fragileness, recoverability and inversibility property. The experiment demonstrated that the complex ecological control pattern of forest, fruit (including melon), medicine (including herb), food grains other than wheat and rice is suitable for the light and potential decertified land.

Key words: inter-rivers area, desertification causes, property, control pattern