Restoration capacity of forest vegetation was analyzed on the basis of the survey of native succession communities and artificial planting communities in the logged stand,and natural regeneration of existing communities in the up reaches of Bailong River region.

This article reports the biology of Triplophysa obscura collected during May~October in 2006 and July~August in 2007 in the upper reaches of Bailong River.

This study found that: the province as a unit small and complete duplication of the layout and construction of the upper reaches of the Yangtze River is the outstanding problems of second industrial development of the four provinces.

The severest floods which broke out on the upper reaches of the Yangtze River in 1998 not only caused serious losses of life and property, but also it has brought serious damage to the natural environment.

The area of soil erosion and sediment discharges of rivers in the middle and upper reaches of the Yangtze River have been increasing.

Preliminary floristic study on the seed plants of Minjiang upriver region;

Based on the Landsat TM5 and TM7 images, the land use/cover change was detected in the upstream area of the Nenjiang River between 1995～2000.