Composite method for controlling rill erosion of slope farmlands

A technology for sloping farmland and rills, which is applied in the compound field of controlling rill erosion on sloping farmland, can solve the problems that the production conditions of sloping farmland in mountainous areas have not been fundamentally improved, the benefits of soil and water conservation are lagging behind, and the benefits of soil and water conservation are limited. Soil loss, effect of reducing soil and nutrient loss, increasing surface cover

Inactive Publication Date: 2011-09-14
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
View PDF1 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is unrealistic to carry out large-scale construction of soil and water conservation forests on sloping farmlands dominated by agricultural production, and plant measures on sloping farmlands have limited soil and water conservation benefits
In addition, pla...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite method for controlling rill erosion of slope farmlands
  • Composite method for controlling rill erosion of slope farmlands
  • Composite method for controlling rill erosion of slope farmlands

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The specific embodiment of the present invention is further described in conjunction with the construction of the engineering plant composite model of the Three Gorges Reservoir Area on the upper reaches of the Yangtze River: the Three Gorges region on the upper reaches of the Yangtze River is located in the eastern part of the Sichuan Basin, and the climate type is a humid monsoon climate in the middle subtropical zone. The landform is characterized by hills and It is dominated by mountains, and the soil types are mainly purple soil, yellow soil and yellow brown soil. Due to the terrain distribution characteristics, the land resources in this area are mainly sloping farmland. The embodiment selects Zhongxian County, Chongqing City, the heartland of the Three Gorges Reservoir Area. The geographical location is between 107°3′ and 108°14′ east longitude and between 30°03′ and 30°35′ north latitude. It is neutral and alkaline purple soil of the Shaximiao Formation, with an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a composite method for controlling the rill erosion of slope farmlands, which realizes soil and water conservation of the slope farmlands by utilizing comprehensive engineering measures and plant measures, and relates to the fields of the improved utilization of sloping fields and the prevention and control of soil erosion. By means of the theory that rills are eroded by sloping surfaces to form critical slope length, terrace banks are constructed by separation distance which is less than or equal to Lc among the sloping surfaces along a contour line according to the critical slope length formed by the rill erosion by the sloping fields, namely the rills are eroded under the condition that the specific slope farmlands are less than the current gradient to generate the separation distance with critical slope length values, the terrace banks are designed and constructed along the contour line, and vegetation zones are planted on the constructed terrace banks to form a layout mode that small units of the sloping surfaces, the terrace banks of the sloping surfaces and the vegetation zones coexist; and the critical slope length Lc formed by the rill erosion by the sloping fields can be obtained by measuring on site in a mode of natural rainfall or artificial rainfall, and also can be obtained by theoretical calculation.

Description

technical field [0001] The invention belongs to the field of slope farmland improvement and utilization and water and soil conservation, and specifically relates to a composite method for controlling slope farmland rill erosion by integrating engineering measures and plant measures in slope farmland transformation to prevent and control slope farmland water and soil loss. Background technique [0002] my country is a country dominated by mountains, which account for about 2 / 3 of the country's land area, and slope land has become the main land resource in our country. According to statistics, in the mountainous areas above 500m above sea level in the country, the area of ​​cultivated land accounts for 44% of the total area of ​​cultivated land in the country, the area of ​​forest land accounts for 90% of the total area of ​​forest land in the country, and the area of ​​grassland accounts for 54% of the total area of ​​grassland in the country. 61% of the total area of ​​agricu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A01B79/02
CPCY02A40/22Y02P60/20
Inventor 贺秀斌鲍玉海唐强
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap