The rivers geography content is very important composition of the new and the old teaching materials.

This paper also calculated service value and came out the result that the total value of the Yulinhe river wetland ecosystem service was about 43.

The function of river wetland is illustrated.

Based on statistic materials and remote sensing image data,analysis on the changes of the river wetland of main stream of the Yangtze River(Hubei section) in time and space was conducted by the method of qualitative analysis and landscape index analysis.

Protection of the diversity of river morphology character;

Generally, the effect of Coriolis force on the river morphology in low latitude regions is not so much noticed as that in the high latitude regions.

Piedmont river terraces formation of the western Kunlun, China and their tectonic significance

Downward from the peak to the piedmont on the basin side are respectively peneplanes of Beitai stage and Dianziliang stage in Paleogene,peneplane of Tangxian stage in Neogene,and seven-level river terraces and six-level pediments in Quaternary.

Tectonic uplift and climate change are two key factors in controlling the development of river terraces in hinterlands.

According to 2000 year s RS images,this paper explains the river geomorphology and draws the explanary picture after analyzing the primary components,multiband image integration,gray bar statistics,etc.

Studies on distribution of caddis larvae and bioassessment of water quality for mountain rivers in Jilin province;