Systematic Classification and Nutrient Analysis of Soil in the Dry-Hot Valley of Jinsha River

Purpose: Dry-Hot Valley of Jinsha River does not have research about soil systematic classification and nutrient analysis. So, this research will fill up this blank, to help people and farmers to better understand the property, the classification, the fertility and management of the soils in Dry-Hot Valley of Jinsha River. Methods: through soil field investigating and sampling, indoor experiment treatment, data analysis, treatment and discussion. Results: this research finds that the soils of many towns in Dry-Hot Valley of Jinsha River is lacking organic matter, nitrogen, phosphorus and potassium, which are the major nutrient elements for plant growth. Conclusions: this suggests people and farmers need to apply organic matter, nitrogen, phosphorus and potassium fertilizers to soil and to stimulate plant growth.