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Water collection and retention method for rain harvesting and infiltration in woodlands on mountain slopes

A kind of technology of polyfront and forestry is used in forestry, afforestation, and adaptation to climate change.

Inactive Publication Date: 2012-07-04
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These technical measures have good rainwater infiltration effects, but there are problems of short effective time and serious evaporation loss

Method used

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  • Water collection and retention method for rain harvesting and infiltration in woodlands on mountain slopes
  • Water collection and retention method for rain harvesting and infiltration in woodlands on mountain slopes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Fill the single-material branch in the water-gathering and moisture-retaining ditch, crush the branch to a length of 1-5cm, and then directly fill and compact it.

[0029] Experimental results: The water storage in the ditch was observed to be 30% higher than that of the control slope, and the soil moisture at a distance of 10cm from the ditch wall around the ditch was 36% higher than that of the control on average, and the direct evaporation loss of soil water after rainfall was reduced by 56%.

Embodiment 2

[0031] Composite materials are filled in the water-gathering and moisture-retaining ditch, including: the refractory plant material is a branch with a length of 1-5cm, and the weight content is 80%; the perishable plant material is leaves and crushed bean straw, and its weight content is 20%; the above After the material is mixed, it is directly filled and compacted.

[0032] Experimental results: Perishable materials are mixed with branches, and the water storage in the ditch is observed to be 35% higher than that of the control slope, and the soil moisture at a distance of 10cm from the ditch wall is 40% higher than that of the control on average, and the direct evaporation loss of soil moisture after rainfall is reduced. 56%.

Embodiment 3

[0034] Composite materials are filled in the water-gathering and moisture-retaining ditch, including: refractory plant materials are branches with a length of 1-5cm, and the weight content is 70%; perishable plant materials are leaves and crushed bean straw, and the weight content is 20%; organic The fertilizer content is 10% by weight. After the above materials are mixed, they are directly filled and compacted.

[0035] Experimental results: except that the effect of water accumulation and moisture conservation is similar to Example 2, the fertilized jujube trees in the observation ditch are 4cm-6cm longer than the new jujube trees without fertilization, the thickness of the leaves is 0.5-0.8mm thicker than that of the jujube trees on the slope, and the flower bud differentiation rate is increased by 4.5 %, fruit yield increased by 40%.

[0036] In combination with Example 2 and Example 3, it should be noted that when the refractory plant material and the perishable plant ma...

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Abstract

The invention belongs to the technical field of forestry engineering, relates to a rain harvesting utilization technology for mountain lands, slopes, hilly orchards and forest land, and discloses a water collection and retention method for rain harvesting and infiltration in woodlands on mountain slopes. The method comprises the following steps of: transversely digging a water collection and retention ditch along a slope between two trees; and filling an organic plant material in the dug water collection and retention ditch, and compacting. By the method, harvested rain is utilized to increase the soil moisture content in artificial afforestation, gardens on the mountain lands and slops are subjected to rain-harvesting water retention preparation, and the method has the characteristics of simple operation, convenience for construction, low manufacturing cost, high durability and high utilization rate of water and fertilizers.

Description

technical field [0001] The invention belongs to the technical field of forestry engineering, and relates to a rain-collecting and utilization technology of mountainous land, sloping land, hilly orchard, and woodland, in particular to a water-gathering method for rain-collection and infiltration of hillside woodland. Background technique [0002] my country is a country with serious water shortage. The arid and semi-arid areas account for 2 / 3 of the total area. Drought and water shortage have not only seriously affected the agricultural development of our country, but also affected the development of the ecological environment and forestry. my country is a mountainous country, and the area of ​​mountainous and sloping land is more than twice that of plain arable land. The storage and utilization of rainwater in mountainous and sloping land is an important way to improve forest production efficiency. Reasonable technology of water accumulation and moisture conservation in slo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00A01G23/00
CPCY02A40/22Y02P60/40
Inventor 汪有科蔺君赵霞
Owner NORTHWEST A & F UNIV
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