Yili river valley newly cultivated slope land tillage mode for preventing soil erosion

Abstract

The invention relates to a Yili river valley newly cultivated slope land tillage mode for preventing soil erosion. According to the mode, each area is divided into three sub-areas including a grain crop area, an alfalfa forage area and a forest fruit area in the direction perpendicular to the isoheight, the alfalfa forage area and the grain crop area are subjected to crop rotation after two years of growth, that is, grain crops are planted in the alfalfa area, alfalfa is planted in the grain crop area, black walnuts and filbert trees are planted in the forest fruit area, and soybeans are subjected to interplantation in forest. Planting is conducted through zoning and crop rotation, the planting layout is optimized, soil coverage is increased, the farming-free period is shortened, water and soil conservation is achieved, the yield is increased and stabilized, cost is reduced, efficiency is improved, influences of crop continuous cropping are reduced, soil fertility is maintained, soil productivity of newly cultivated slope land is improved, soil erosion, caused by land surface exposure, of the newly cultivated slope land is prevented, soil utilization efficiency is improved, and accordingly water and soil conservation of the Yili river valley newly cultivated slope land, efficient agricultural production and sustainable utilization of soil resources are achieved.

Description

technical field [0001] The invention relates to a farming mode of slope cultivated land in valleys in an arid area, in particular to a farming mode for preventing soil erosion in newly reclaimed slope cultivated land in Ili Valley. Background technique [0002] The water and soil resources in the Yili River Basin are rich and well-combined. The sustainable development and utilization of water and soil resources in the Yili River Basin is of great significance to the development of agricultural economy and food security in Xinjiang. However, the relative abundance of water and soil resources in the basin is intertwined with the sensitivity of international rivers, and the significant advantages in the development of water and soil resources coexist with the increasingly serious problem of water and soil erosion. With the addition of about 5 million mu of cultivated land in the Yili Valley, soil erosion and pressure on the ecological environment will further increase. [000...

AI Technical Summary

Problems solved by technology

[0005] Practice has proved that in view of the characteristics of strong spring wind, snow melting and summer rainfall erosion on the sloping land of Ili River Valley, as well as the high soil salt content in the study area and the leaching effect, it is easy to cause salinization of the mellow soil in the valley. Agricultural production needs. On the newly reclaimed barren sloping land in the Ili River Valley, although this series of conservation tillage measures are effective, the effects are not the same under different slopes, geological conditions and different crop cultivation needs.