The Erosion Gully Evaluation Index System Of The Diffuse Gentle Hilly Area Of The Northeast Black Soil Area

For a long time, natural, economic and cultural factors lead to high index of the blacksoil region of Northeast China, which is made into the hardest hit erosion gully development.Especially the diffuse area which the erosion gully development has been a serious threat tothe development of agriculture and industry. Therefore, it is one of the problems to be solvedin the current agricultural production and soil conservation work to study all about gullydevelopment in the diffuse area. And the premise to solve this problem is to do a good jobevaluation system of the erosion gully, which is the ultimate northeast black soil area gullyerosion prevention system to build the foundation.In order to promote the black soil region of Northeast China erosion gully classificationresearch to standardized, scientific direction, auxiliary soil and water conservation technicalpersonnel and related decision-making departments quickly and accurately interpret the stageof development and the type of erosion gully, to help them in the process of land use, localconditions build the most reasonable model of governance in order to complete the gullyerosion governance planning and design work. Therefore, to build a scientific, practical andstrong maneuverability erosion gully morphological classification standards has importanttheoretical significance and production of practical significanceFor the erosion gully defined, for different soil erosion areas, different scholars havedifferent criterion. There has not been yet formed a scientific and accurate evaluation oferosion ditch type "ruler" in the northeast black soil area. Therefore, it will be difficult tocarry out different types of erosion ditch targeted in-depth study. Northeast black soil area hasdifferent types in recent years through the establishment of the index system, from theperspective of space-time three-dimensional quick interpretation erosion ditch trends, andunderstand the morphological characteristics of the different types of erosion ditch, and thencan be done local conditions, a result of harm fortification ditch and governance, as well asscientific control erosion gully and exploitation the valid scientific basis.Based on this, this study based on extensive investigations of the northeast black soilarea diffuse area erosion gully, analysis, inference, summary of research findings aresummarized as follows:(1) Conclude the qualitative features of the northeast black soil area gentle hilly area ofdifferent types of erosion gully, divided into a rill, ephemeral gully, gully and stable ditchfive types;(2)Proposed the gentle hilly northeast black soil area go the erosion gully evaluationindex system, screening out the scientific and effective evaluation and to determine the indexthreshold;(3) Draw diagram of the different types of erosion gully which can be fast, accurate,simple to interpreted.