Irrigation method and system for desertified river bank wind prevention and sand fixation forest belt

A sand-fixing forest and river bank technology, which is applied in the field of water and soil conservation methods and systems for the maintenance of windbreak and sand-fixing forest belts, can solve the problems of increasing the operating cost of water intake facilities, high operating costs of water intake facilities, and large evaporation losses in channel water transmission, and achieves the improvement of water resources. Available amount, small loss, low loss effect

Active Publication Date: 2017-12-15
CHINA INST OF WATER RESOURCES & HYDROPOWER RES +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual operation, due to the need for energy such as electricity or oil for power pumping, the operating cost of water intake facilities is high, and the failure of mechanical devices and daily maintenance will further increase the cost
At the same time, due to silt and sundries, etc., the water intake is often blocked, and manual maintenance is required to ensure its normal operation, which further increases the operating cost of the water intake facility.
At the same time, the desert area is dry and rainless, and the evaporation loss of channel water transmission is very large
With pipelines, due to sand dune movement, difficult maintenance and other reasons, it is difficult for facilities to exert benefits

Method used

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  • Irrigation method and system for desertified river bank wind prevention and sand fixation forest belt
  • Irrigation method and system for desertified river bank wind prevention and sand fixation forest belt
  • Irrigation method and system for desertified river bank wind prevention and sand fixation forest belt

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Experimental program
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Effect test

Embodiment 1

[0067] The present embodiment is an irrigation method for windproof and sand-fixing forest belts of sandy banks, the method being:

[0068] (1) Buried water intake facilities in the upstream river bed of the deserted river bank where the windbreak and sand fixation forest belt is planted. Water intake facilities can use multiple roots to arrange water intake and permeable pipes in parallel along the river flow direction. These water intake permeable pipes are buried in the river bed and do not directly contact the water flow in the river, but absorb water that penetrates into the river bed. This way of water intake can effectively avoid the blockage of the water inlet, and the seepage water is relatively clean, with less sediment and sundries, which is conducive to irrigating plants. Multiple water intake facilities can be set up along the river, and they should be set up in places where the river bed is relatively soft, with less silt deposits and stronger infiltration capaci...

Embodiment 2

[0073] This embodiment is a kind of irrigation system of realizing the method described in Embodiment 1 for windbreak and sand-fixing forest belt of sandy banks, such as figure 1 , 2 The arrows in the figure indicate the direction of water flow. This embodiment includes: a water intake facility 1 composed of a plurality of water intake permeable pipes arranged in the upstream channel of the river, the water intake facility is connected to at least one water collection facility 2 arranged downstream of the water intake facility through pipelines, the water collection facility The facility is connected to the irrigation facility 4 downstream of the water collection facility through the water delivery facility 3. The water delivery facility and the irrigation facility are arranged outside the windbreak and sand-fixation forest belt 5, that is: the windbreak and sand-fixation forest belt is between the water delivery facility, the irrigation facility and the river channel 6. betw...

Embodiment 3

[0083] The implementation of this embodiment is an improvement of the second embodiment, and it is a refinement of the second embodiment about water intake facilities. The water intake and permeable pipe of the water intake facility described in this embodiment is buried in the river bed along the direction of the river, and the water intake and permeable pipe forms an angle of 0-20 degrees with the bottom surface 601 of the river bed gamma ,Such as image 3 as shown,

[0084] In rivers with good hydrological conditions, due to the better water permeability of the sandy soil in the river, water intake and permeable pipes with a certain inclination angle are buried in the riverbed upstream of the river, that is, if the river has a certain inclination ε (See image 3 ), then it is also necessary to slope down a α In this way, when the river course flows, part of the water will enter the water intake permeable pipe through infiltration, so as to achieve the purpose of water ...

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Abstract

The invention relates to an irrigation method and system for a desertified river bank wind prevention and sand fixation forest belt. The system comprises a water taking facility which is arranged in the upstream river channel of a river and formed by multiple water taking permeable pipes, the water taking facility is connected with at least one water collecting facility arranged on the lower portion of the water taking facility through pipelines, the water collecting facility is connected with irrigation facilities arranged on the lower portions of the water collecting facilities, and the irrigation facilities are arranged on the outer side of the wind prevention and sand fixation forest belt. Accordingly, the mode of infiltration water taking under a river bed is adopted, blocking of silt and sundries is avoided, and excellent clean water is improved for irrigation. Meanwhile, the water taking facility, the water collecting facilities and the irrigation facilities are arranged on the river from the upper portion to the lower portion according to the homeopathy of the terrain, gravity-flowing irrigation is formed by means of the natural gradient, irrigation is conducted by completely replying on the natural gravity without using any manual power facility, and the operation cost is greatly lowered. Due to the fact that no mechanical power device is arranged, loss in daily operation is very low, regular maintenance is not needed in general, and the operation cost is lowered.

Description

technical field [0001] The invention relates to an irrigation method and system for a windproof and sand-fixing forest belt on a deserted river bank, which is an environmentally friendly hydraulic method and system, and a water and soil conservation method and system for maintaining a windbreak and sand-fixing forest belt. Background technique [0002] In the comprehensive control of desert soil and water loss, the construction of windbreak and sand fixation forest is an indispensable link. However, due to the low precipitation and large evaporation in desert areas, it is difficult to solve the irrigation problem of windbreak and sand-fixation forests (especially at the seedling stage) in the construction of water and soil conservation projects, which has become a major difficulty in soil and water conservation. Most of the irrigation measures for windproof and sand-fixing forests in the prior art are to draw water from river courses or extract groundwater, and build channel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03B3/04A01G25/02
CPCA01G25/02E03B3/04Y02A40/22
Inventor 龚家国冯伟王浩赵勇孟庆东陈永钢冶运涛尚毅梓牛晨王英
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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