The vegetation restoration mode construction in slopingland withpurple soilsin Hengyang basin

This paper took slopingland with purple soils in Hengyang basin as example, by summarizing the achievements of previous studies and collecting information and experimental data from Ecological Experimental Station of purple soil in Ecological Research Institute of Hunan Agricultural University, and systemically analyzed the main features of degenerative ecosystems of slopingland with purple soils in Hengyang basin. The results included that the drought and water shortage, outstanding contradictory of water and heat, serious loss of water and soil, frequently destroy by human, and the plant communities were easy to be ruined and difficult to be resumed. Based on this, this paper put forwards three typical models to vegetation restoration construction in upslope, midslope and downslope of slopingland with purple soils in Hengyang basin from views of overall situation, urgency, efficiency, hierarchy, duration, innovation and diversity. These three models were shrubgrass mode, arborshrubgrass mode and fruit bushesgreen manure crops mode, it was expected to promote the allround, continually and harmonious development of ecology, economy and society in studied area.