| The paper takes the Danangou watershed located at the typical hilly-gully region of the Loess Plateau as subject of case study, introduces the approach and results using the integrated participatory method to investigate the environment status and development in future, and looks into the farmers' perspectives and perception of environment construction. The aspects investigated included population, land use change, land policy, climate, economic income and soil conservation and society, sanitation and education. The results were as following: ① the suitability of crops, orchard plots and arbor, bushes to manifold landform types. ② the species of cash trees and arbor, bushes preferred by the farmers in environmeut construction. ③ the fertilizing method to improve soil fertility and prevent soil compaction. ④ the evaluation of the soil conservation measures in terms of the criteria of benefits and the foresight. ⑤ two plans of environmeut construction: '>25° land conversion' and '>15° land conversion', and estimation of the landholders' economy influenced by the different plans in future. The application of participatory method proved to be successful. The investigaton results directly coming from the farmers were full and reliable, offering the rational advices to the government when they made concerned policy for the study area, even the Loess Plateau, and avoiding the blindness in implementing the policy in practice in most cases. |