Methods of land consolidation in chernozems region of China

Generally, the chernozem has higher soil fertility. But the restrictions of land use and natural conditions (such as slope, climate, etc.) result in a certain degree of soil erosion and degradation of chernozem. Therefore, the purpose of the research is to maintain the productivity of cultivated land and enhance the conservation of water and soil of chernozem by land consolidation. GIS and remote sensing image were introduced into land consolidation. According to the characteristics of soil and geographical elements of the study area, we used GIS software, combined with simulation analysis method, to explore the appropriate design that is suitable for farmland, water, road and forest in cultivated land consolidation for chernozem area. The result indicated that: land leveling in chernozem area should be based on the actual mode of production and soil characteristics to amend the local topographic surface; water conservancy works of farmland should adopt sprinkler irrigation system to save water; field road design requires to be based on field conditions in order to maximize conservation of the farmland; creating a shelter to mitigate the harmful wind, focusing on raising soil fertility, and changing tillage methods to improve soil. The conclusions are: we should aim at soil erosion area to implement local land leveling during cultivated land consolidation in chernozem area, and avoid large scale transportation and leveling of surface soil. At the same time, sprinkler irrigation facilities and improve ecological environment were used. In addition, paying attention to soil improvement and conserving soil fertility are also more significant.