Age and Growth of Acrossocheilus Yunanensis in the Upstream Chishui River

Soil bulk density,soil porosity,litter accumulation,moisture capacity of litter and water holding capacity of the forest land for Moso bamboo forests,Chinese fir forests and Masson pine forests in the lower reaches of Chishuihe river were studied.

This paper,based on a case study of the upstream of Fenhe Reservoir in Yellow River,applies the Remote Sensing data of Landsat MSS(1976),TM(1990) and ETM+(2002) to dynamically monitor the land erosion with the results indicating that the soil has been eroded extensively during 1976 to 1990,and turned to a good condition in general during 1990 to 2002,but still worsening lo.

Based on a general biodiversity survey in the Chishui River basin,the authors first summarized the main characteristics of its biodiversity,including diverse ecosystems and species as well as heterogeneous habitats,at the river basin scale,and then analyzed the situation,opportunity and main challenges to biodiversity conservation in this river basin.

The changes of water quality of Chishui river are analyzed based on recent five years water quality monitoring data.

An ancient stone bridge made of two overlapping bridges lies in the Chishui river between WeiNan and Hua county in Shaanxi province.

Effects of Upper Yellow River Pollution on Antioxidant Enzymes Activities and Malondialdehyde Content of Bufo raddei;

Reconstruction of recent 522-year runoff series on Upper Yellow River and analysis on its variation trend;

Climate variation in upper Yellow River in 1990s and its influences on inflow of Longyangxia Reservoir;