Through experimental research on joint planting of trees and herbage to implement the return of cultivated land to forest and grass policy on alpine slopes in the Hezheng and Dingxi Counties of Gansu Province, the most suited establishment pattern for local conditions was screened out.

Under branch height has direct impact on woods growth and trunks form,so dynamic model established with under branch height can reflect the growth of woods and stands.

Impacts of disturbances on alpine timberline reformation.;

Research advances in the relationship between alpine timberline and climate change;

Advances in formation mechanism of alpine timberline and associated physio-ecological characteristics of plants;

Climatic response of tree-ring width from alpine treeline in the middle of Anyemaqen Mountains, northeastern Tibetan Plateau,China;

Taking the northeast slope of Moxi vally and southwest slope of Kangding vally in Gongga Mountain of Southwest China as sampling sites,this paper investigated the leaf mass per unit area(LMA)and tissue non-structural carbohydrates content(NSC)of Abies fabri distributed at the positions from lower elevations to alpine treeline during the periods of dormancy and vigorous growth.