The tourist ring in the west of Hubei province is rich in the most resourceful tourist resources,one river and two mountains,while the developing status is that Hanjiang River develops quickly and Wudang Mountains and Shennongjia Mountains slowly.

Estimation of net primary productivity in middle reaches of Yarlung Zangbo River and its two tributaries;

With the face of "Two Rivers and One Lake" Watershed remediation requirements,and the trend that small watershed are looked as a unit to deal with regional ecological problems in water resources and water environmental management,we extract kunming basin based on the DEM with Arcgis hydrological analysis module.

Finally, a practical work named "the conservation planning of Yijiangshan island battlefield" is introduced.