A method for controlling water and soil loss of embankments by using Bahia grass

Abstract

The invention relates to the technical field of conservation of water and soil, in particular to a method for preventing and treating river levee water and soil loss through paspalum natatum.According to the method, a paspalum natatum lawn is adopted for slope protection, particularly, ryegrass seeds and paspalum natatum seeds are mixed and sown so as to effectively cover the exposed surface of a river levee slope surface within a short time, and the lawn building speed is high; the paspalum natatum has the strong soil fixation and protection ability, and is resistant to drought and barren, small in fertilizer requirement amount and environmentally friendly; the paspalum natatum seeds are directly used for lawn building in cooperation with a closed type herbicide and a herbicide special for lawns, the lawn building and maintenance cost is low, and the landscape effect is good; paspalum natatum grows rapidly, is high in yield, rich in nutrition and capable of bearing under grazing and has both environmental benefits and economic benefits.

Description

technical field [0001] The invention relates to the technical field of water and soil conservation, in particular to a method for preventing and controlling water and soil loss of embankments by using bahia grass. Background technique [0002] The surface soil of embankment slope is mostly sandy soil and silt soil, which is prone to shallow landslide and surface erosion. In order to protect the embankment and avoid this situation, measures such as piled stones and mortared stones have been taken in the past, although they can effectively separate the embankment slope from the surface runoff and prevent the surface runoff water from flowing on the slope. Erosion has no environmental protection effect, and the landscape effect is poor. [0003] As people gradually pay more attention to the ecological environment, vegetation slope protection technology is gradually being respected. Vegetation slope protection uses the mechanical effects of vegetation roots (deep root anchorin...

AI Technical Summary

Problems solved by technology

[0004] In view of the above advantages, bahiagrass has strong adaptability in southern my country and is widely used in the field of soil and water conservation. However, there are still the following deficiencies in its application: ①Slow construction speed: slow germination speed, it is difficult to cover bare soil in a short time The ground surface realizes rapid greening and slope protection; ② serious weeds: because there are many weed seeds in the soil on the embankment slope surface, and the germination speed of bahia grass is slow, the lawn bed is easily invaded by weeds, which affects the effect of building lawns; at the same time, the special lawn Lack of herbicides makes it difficult to weed in the later stage, which affects the landscape effect. Weeding mainly depends on manual work, and the maintenance cost is high; ③ uneven emergence and poor landscape effect

④The cost of seedling cultivation and transplanting is high, and the promotion is limited