Comprehensive utilization method of arid valley erosion gully
A technology for eroding ditches and river valleys, applied in botany equipment and methods, applications, water conservancy projects, etc., can solve the problems of high water requirements for shrubs and trees, difficulty in drilling vertical ditches and slopes, and harsh application conditions, etc., to achieve control Effects of soil erosion, promotion of agricultural production, and low cost
Inactive Publication Date: 2020-12-29
CHINA WEST NORMAL UNIVERSITY
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Problems solved by technology
The method published in the above patent can play a certain positive role in the treatment of erosion gullies with relatively good water conditions, but the applicable conditions are harsh. Cause the side walls of the ditch to collapse and increase soil erosion. At the same time, the growth of shrubs and trees has high requirements for water conditions, which are difficult to meet in practical applications
In addition, the cost of the method disclosed in this patent is high, but the effect is difficult to guarantee, and the input and output are relatively low
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[0021] The present invention will be further elaborated below in conjunction with accompanying drawing, but the present invention is not limited to following embodiment, described method is conventional method unless otherwise specified, and described material all can be obtained from open commercial channel if not specified.
[0022] A method for comprehensive utilization of erosion ditch in dry valley, comprising the following steps:
[0023] (1) In the arid valley, the side wall and bottom of the erosion ditch are parallel to the edge line 1 of the erosion ditch to carry out step land preparation at intervals to form strip terraces 2 (or local strip terraces); the interval of step land preparation is about 20cm, that is The width of the strip terrace is about 20cm; specifically, it is between 15cm--30cm;
[0024] (2) Locally uplift the edge of the strip-shaped terrace to form a ridge 3; the height of the ridge is about 5cm, specifically 3cm-6cm.
[0025] (3) Then, differen...
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Abstract
The invention discloses a comprehensive utilization method of an arid valley erosion gully. The method comprises the following steps that stepped soil preparation is carried out on the side wall and the bottom of the arid valley erosion gully at intervals along the gully edge line of the erosion gully to form a strip-shaped terrace land; the edges of the strip-shaped terrace land are raised to form ridges; and different crops are selectively planted on the strip-shaped terrace land, drought-enduring and barren-enduring plants are planted on the strip-shaped terrace land at intervals, and a plant screen is formed. The strip-shaped terrace land, the ridges and the plant screen in the gulley can prevent soil and nutrient substances in the erosion gulley from being eroded and taken away. The method has great significance in reducing erosion of the side wall and the bottom of the erosion gulley, meanwhile, the intercepted runoff and sediment can also provide better conditions for crop planting, agricultural production can be promoted easily, and economic benefits can be improved easily.
Description
technical field [0001] The invention relates to the field of soil and water conservation ecological management, in particular to a comprehensive utilization method based on erosion ditch. Background technique [0002] Erosion gullies are a serious form of soil erosion, and their erosion-sediment contribution can reach 10%-90% of the total sediment production in the watershed. Dry valleys have broken terrain, harsh climate, high mountains and steep slopes, very little arable land, and prominent conflicts between humans and land. The widespread over-cultivation and over-grazing have led to extremely serious soil erosion, mainly caused by erosion gullies. Taking Xide County as an example, its territory The contribution of Sunshui River to erosion and sediment production can account for more than 80% of that of Yalong River. Because of the high sediment content, Sunshui River is also known as Hongshui River. In the past, the control measures of erosion ditch were mostly based o...
Claims
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Login to View More IPC IPC(8): A01G22/00A01G17/00A01G2/10A01G22/25E02B1/00E02B3/00
CPCA01G17/005A01G2/10A01G22/00A01G22/25E02B1/00E02B3/00
Inventor 杨丹刘守江罗明良张斌罗君吕威何雨栗王磊
Owner CHINA WEST NORMAL UNIVERSITY