Plant root group dam ecological engineering construction method for prevention and control of mud flow in loess plateau

Abstract

The invention provides a plant root group dam ecological engineering construction method for prevention and control of mud flow in the loess plateau, and belongs to the field of ecological environmentimprovement. The method comprises the following steps: S1, dividing the slope gradient of the loess plateau; S2, rationally arranging arbor species, shrub species and herbaceous plants of different types and different root group depths under different slope gradients; S3, tending, managing and protecting grow plants in plated lands in the later stage to ensure that the plants can grow healthily.The plant root group dam ecological engineering construction method provided by the invention fully utilizes the root layer of three layers of trees, shrubs and herbaceous plants to realize the reinforcement of the shallow soil of the loess plateau, thereby reducing soil erosion as well as water and soil loss.

Description

technical field [0001] The invention relates to the field of ecological environment improvement, in particular to an ecological engineering construction method of plant root group dams used for preventing and controlling mud flow on the Loess Plateau. Background technique [0002] The whole arid and semi-arid hilly ditch area of ​​the Loess Plateau is the area with the most serious soil erosion in my country and even in the world. For a long time, soil erosion has not only become the main problem that plagues the sustainable development of the region and farmers' poverty alleviation, but also brings a series of ecological and environmental problems to the lower reaches of the Yellow River. [0003] Existing ecological measures for mudflow prevention and control mainly include forestry measures (such as closing hills for afforestation, afforestation and grass planting, etc.), agricultural measures (such as contour farming, returning farmland to forests on steep slopes, and se...

AI Technical Summary

Problems solved by technology

Among them, soil and water conservation afforestation in the Loess Plateau area is the most used ecological control measure in recent years. The traditional soil and water conservation afforestation model is relatively simple. Usually, a single tree species or only a combination of tree and shrub species is selected for planting. The selection of planting species is mostly based on its biological However, the soil-fixing characteristics of plant roots (root groups) are rarely considered, especially the root diameters of different plant species and their distribution ranges in the soil, and the impact of plant roots in different soil depth ranges is not fully considered. Improvement of soil shear strength

The traditional soil and water conservation afforestation technology is relatively general for the classification of soil erosion types, and there is no effective construction of ecological prevention and control projects for different types of soil erosion

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