Impact of water environmental characteristics in Dry-Hot valley of Jinsha river on soil desertification
Based on the field investigation and the analysis of soil moisture curve, it is clearly shown that there is a positive relationship between vegetation coverage rate and soil moisture capacity and soil depth in dry-hot valley of the Jinsha River, and also there is a desertification process with seasonality. It is suggested that the basic factor of desertification in the area is water deficiency (seasonal drought and low soil water capacity) and the direct dynamic of desertification is soil erosion. Some effective countermeasures are presented, of which water-saving planting and irrigation techniques should be firstly applied in the studied area.
Key wordsdesertification dry-hot valley of the Jinsha River water environment
Unable to display preview. Download preview PDF.
- A Gnew C. T. et al., 1995. MaHafir: a water harvester system in eastern Jordan desert. Geojournal, 37(1): 68.Google Scholar
- Cao Fengzhong (ed.), 1995. Development and Implication of Global Environment Protection. Beijing: Environment Science Press House of China. (in Chinese)Google Scholar
- Liu Shuzhen, 1996. The characteristics and its causes analysis of desertification in Yuanmou of Yunnan. Journal of Desert Research, 16(1): 8–13. (in Chinese)Google Scholar
- Laryea K. B., 1992. Rainfed agriculture: water harvesting and soil water conservation. Outlook Agriculture, 21(4): 271–277.Google Scholar
- Shi Jiaxi (ed.), 1996. Comprehensive Utilization of Water Resource. Beijing: Water Conservancy and Electric Power Press House of China. (in Chinese)Google Scholar
- Zhang Tianzeng (ed.), 1996. Water Conservancy and Environment in China. Beijing: Science Press. (in Chinese)Google Scholar