A Preliminary Probe on Frailty Delimitation of Mountain Ecological Environment in Qianxi County;

Study on Sustainability of Returning Araeble Land to Forest Base on Investigations from Farmers in Qianxi County

Taking Qianxi county,Hebei province,for example,we put forward the principles to select influencing factors,then graded,evaluated them and fixed on their weight by grey system analysis.

The paper systematically studies the routes, content, date of composition, condition of manuscript and documentary value of "Xi Yu Xing Cheng Ji"by Chen Cheng of the Ming Dynasty, reviews the relationship between Bechbaliq Kingdom and the Ming court in the Hongwu and Yongle periods respectively and corrects the time of the westward movement of Bechbaliq Kingdom.

Xibe nationality’s westward movement has rewritten and created Xibe group’s history and has exercised a tremendous influence on Xibe’s culture.

Tonal Modifications of Linking Words in the Dialect of Qianxi,Hebei;

Study on the Optimization of Agriculture Structure in Mountain Area Based on the Ecological Footprint——Take Yuexi County as An Example;

This paper took Yuexi County located in Dabie Mountain as an example,study to explore the ecosystem management applied in the mountainous ecotourism development.

Yuexi County, one of the 3rd national ecological demonstration areas is taken as a case study.

Status quo and Solutions of Biodiversity Protection in Jiexi;