land use change and its driving forces on the Tibetan Plateau during 1990-2000
Changement climatique ; Chine ; Domaine aride ; Développement durable ; LANDSAT ; Planification ; Plateau ; Qinghai ; Système d'information géographique ; Télédétection ; Utilisation du sol
Arid area ; China ; Climatic change ; Geographical information system ; LANDSAT ; Land use ; Planning ; Plateau ; Qinghai ; Remote sensing ; Sustainable development
The aim of this paper is to analyze land use change pattern using a geographical information system (GIS) and patch analysis methods and to discuss its driving forces based on the climatic changes and socioeconomic development, which will benefit
the process study of land use change and land-use planning on the Tibetan Plateau.
A non-linear technique based on fractal method for describing gully-head changes associated with land-use in an arid environment in China
This paper aims to propose a non-linear technique based on fractal method for describing gully-head changes quantitatively, and carried out a case study in the Yuanmou Basin in the Longchuan River Valley, Yunnan Province. Seventy-seven gullies under
5 different land-uses were investigated in 1998 and again in 2002. The results suggested that the 3 parameters proposed can sensitively reflect the gully-head changes associated with land-use, and may be used as feasible parameters for understanding
and predicting gully development under land-use change and global change.