Taking Chengjiang small watershed in Du\'an County of Guangxi was chosen as an example,four stages of the reversal succession process about rocky desertification were chosen,including the typical plots of the arbor,shrub,bushes and short grass.

Effects of land use change on groundwater quality in karst watershed-A case study in Xiaojiang watershed of Yunnan province;

On the basis of TM image of Xiaojiang watershed and field investigation,as well as according to the geological distribution and the situation of landform growth,the paper divided the types of watershed landform into two landscapes.

Xiaojiang watershed of Yunnan Province, a typical karst watershed with medium size in scale, was chosen as basement to analyze the spatio-temporal variability of the land use and the soil quality, and the mechanisms of land use and the soil quality change.

Desertification and Countermeasures in Xiaojiang Valley of Yunnan;

Study on the key landslide factor by means of GIS in Xiaojiang Valley,Yunnan;

Xiaojiang valley, situated in the north-east of Yunnan province, belongs to dry & hot valley of Jinshajiang River.

Study on Soil Anti-collapse Ability in Xiaojiang River Basin;

The Mann-Kendall(M-K) statistical test method was used to analyze the rainfall data of Xiaojiang River basin in the upper reach of Yangtze River from 1950 s to 1990s in this article.

Through the background analysis of Xiaojiang River basin, such as geology, landform, hydrology and meteorology, and with the mechanical model the experimental study is carried out.

Analysis of Land Use Change and its Changing Trend in Xiaojiang Basin;

In this paper,Xiaojiang basin was taken as the study area to investigate the difference of hydrological properties of weathered materials from different kinds of rocks.

Studies on the canopy precipitation interception,litter layer water-holding capacity,soil infiltration characteristic and water holding capacity of main forests types in Jiangning small watershed.