According to the data from Tieshanpo Gasfield and the requirement of reinjection formation, we analyzed and screened some reinjection formations in the field, and then chose Feixianguan Formation as the produced-water reinjection formation.

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.