Factor analysis in environmental degradation at the lower reaches of Tarim river;

Using Participatory Rural Appraisal method, this paper investigated how the people in different regions in the upper reaches of the Dadu River watershed understood and responded to environmental degradation, based on comparative field surveys in three villages, in which Danzamu village chosen from villages in th.

According to the situation in the western Shanxi province, environmental degradation mainly includes water erosion and wind erosion and vegetation degradation.

From two aspects of natural factors and artificial factors, this pa pe r analyses on the main causes of ecological environmental degeneration in Taiyua n City.

The paper analyses the causes of wetlands degeneration in Zhalong Wetlands from the eutrophic nutrition of water,the increase of agricultural dry farmland,the reduction of precipitation,and the rapid falling of water table,revealing that environmental degeneration has led to the reduction of vegetation,fishes and birds,with the ecological function of the wetland declining.

The environment degradation and its driving mechanism of Xianghai wetland in the west of Jilin Province;

This paper discussed the driving mechanism of the environment degradation based on the presentation of the wetland background.

This essay covers the author's view of the connotation of environmental cost internalization, the theoretical foundation of environmental cost internalization, and a recommendation of an operation system involving government, society and enterprise.

The trade activity (external factor) affecting environment and the problem of environmental cost internalization (internal factor) are also analyzed and discussed.