Improved water retention method for gobi desertification soil through afforesting planting soil

Abstract

The invention provides an improved water retention method for gobi desertification soil through afforesting planting soil. Compared with a traditional park afforesting planting soil backfilling method, the method comprises the steps of laying a layer of waterproof blankets between municipal afforesting planting soil and an edge in contact with a municipal road, then performing backfilling on the afforesting planting soil; and after backfilling of the afforesting planting soil is completed, performing leveling and compacting, before afforesting planting, performing mechanical furrowing at an afforesting planting region, laying organic matter mixed fertilizers in furrows, then performing backfilling and leveling on furrow tops, and finally performing afforesting planting. According to the method disclosed by the invention, seepage isolation measures of the bentonite waterproof blankets and the like are increased at the edge of the municipal road, the situation that conservation and irrigation water enters a roadbed can be reduced, the situation that the roadbed settles and sinks due to being in contact with water can be reduced, and the quantity of the conservation and irrigation water is reduced; through furrowing and burying the organic matter mixed fertilizers, soil layers having different structures are formed, and hardening of the soil is reduced; and besides, polyacrylamideand bentonite have strong adsorbing capacity, so that the capacity of desertification soil for evaporation resistance and water retention can be increased.

Description

technical field [0001] The invention belongs to the field of landscaping and planting, and in particular relates to a method for improving and retaining water in Gobi desertified soil for greening and planting soil. Background technique [0002] Cities in western my country such as Xinjiang and Gansu have long average annual sunshine hours and little rainfall. Urban landscaping planting soil is Gobi desertification soil. The water consumption of urban greening is large, and the organic matter in the Gobi desertification soil decomposes quickly and is not easy to accumulate, resulting in poor fertilizer retention in sandy soil. At the same time, the interaction force between sandy soil particles is small, the texture is loose, the soil permeability is good, the pores are large, and the capillary action is weak, so the sandy soil has poor water retention and water storage capacity. The loss of water and nutrients leads to a decrease in the productivity of sandy soil and a lo...

AI Technical Summary

Problems solved by technology

The amount of water for urban greening is large, and the organic matter in the Gobi desertification soil decomposes quickly and is not easy to accumulate, resulting in poor fertilizer retention in sandy soil

At the same time, the interaction force between sandy soil particles is small, the texture is loose, the soil permeability is good, the pores are large, and the capillary action is weak, so the sandy soil has poor water retention and water storage capacity.

The loss of water and nutrients leads to a decrease in the productivity of sandy soil and a low survival rate of seedlings

Because there is no barrier between the urban greening planting soil and the urban roads, during the process of greening irrigation and maintenance, the water for greening irrigation is seriously lost to the road subgrade, resulting in a large amount of water for greening. sink in water

Images