A kind of method for afforestation of stony mountainous land with alien soil expansion and storage

A technology for foreign soil and mountains, which is applied in the field of operation technology system of expanding and storing afforestation in stony mountain, can solve the problems of weakening the survival ability of forest tree seedlings, burning the stems and leaves of seedlings, and high surface temperature, so as to increase the effective storage capacity, Accelerates cultivation and enhances effectiveness

Inactive Publication Date: 2018-01-16
INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dry air, high surface temperature, and strong wind directly weaken the survival ability of forest seedlings, causing serious dehydration of seedlings and burning the stems and leaves of seedlings

Method used

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  • A kind of method for afforestation of stony mountainous land with alien soil expansion and storage
  • A kind of method for afforestation of stony mountainous land with alien soil expansion and storage
  • A kind of method for afforestation of stony mountainous land with alien soil expansion and storage

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, the systemic method of afforestation with the expansion and storage of alien soil in rocky mountainous land.

[0026] The systematic method of the present invention comprises the following steps:

[0027] A. First dig a special-shaped pit, and dig a half-moon-shaped pit from top to bottom along the contour line on the slope of the rocky mountain. The upper part of the half-moon-shaped pit is a 1-meter-long straight line, and the sides and lower part of the half-moon-shaped pit are semicircular. The radius of the semi-circular part is 60% of the upper straight line of the half-moon-shaped pit, and the inside of the semi-circular part is higher on the outside and lower on the inside, and the net depth at the lowest point is not less than 40% of the upper straight line of the half-moon-shaped pit; see the attached structure for related structures figure 1 ;

[0028] B. Then carry out foreign soil replacement in the special-shaped pit. The use of foreign soi...

Embodiment 2

[0034] Embodiment 2, special-shaped pit optimization implementation plan (see attached figure 1 ).

[0035] First, the spacing of special-shaped pits: where there are conditions, it is basically 4×4m, which is distributed in a zigzag shape; where there are no conditions, the spacing can be increased according to the actual situation of rocky mountains;

[0036] Second, the structure and size of the special-shaped pit: the upper part of the special-shaped pit is straight and 1 meter long; the two sides and the lower part are semicircular, with a radius of 0.8 meters and a depth of about 50 cm;

[0037] Third, the production process of the special-shaped pit: a—Move the soil layer of the special-shaped pit to its upper part and store it temporarily; b—Dig the lower rock layer of the special-shaped pit to a depth of 50cm, and place the rock and soil on its lower edge , as the water-retaining boundary of the special-shaped pit; c—backfill the soil temporarily stored in the upper...

Embodiment 3

[0039] Embodiment 3, study on the optimization of guest-soil ratio.

[0040] From the perspective of improving the water-holding capacity of rock and soil, the more foreign soil replacement and backfilling, the better, but it is also necessary to pay attention to the change of rock and soil infiltration capacity. In addition, from the perspective of actual construction, the less foreign soil replacement and backfilling, the better. This forms a pair of contradictions; the goal of solving this pair of contradictions is to increase the water holding capacity of the rock and soil as much as possible without replacing the backfill soil as little as possible and not excessively reducing the infiltration capacity of the rock and soil; Taking the field water holding capacity and permeability coefficient as the main indicators, the water holding capacity of the field soil replacing the primary clastic rock was compared and studied, and the optimal ratio of the field soil and the primar...

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Abstract

The invention discloses a method for rocky mountain soil dressing storage expanding afforestation. The method comprises the steps that firstly, a special-shaped pit is dug, then, soil dressing replacement is performed and a biological storage expanding bulking agent is added into the special-shaped pit, meanwhile, supplemental irrigation water source preparation is performed, and finally, nursery stock preparation, nursery stock transplanting, rooting strengthening treatment and coverage water retention serial measures are performed to complete a rocky mountain storage expanding afforestation ecological project. The rocky mountain protoclastic granular structure can be improved, the soil reservoir effective storage is increased, the soil water storage capacity is enlarged, rainfall effectiveness and seedling drought resistance are enhanced, the natural rainfall storing and adjusting functions of a soil reservoir are brought into full play, the survival rate of rocky mountain difficulty site afforestation is increased, forest resource cultivation is accelerated, and the mountainous ecological environment is improved.

Description

technical field [0001] The invention relates to the technical field of drought-resistant afforestation on difficult sites, in particular to an operation technology system for afforestation with alien soil expansion in rocky mountainous land. Background technique [0002] At present, with the continuous advancement of afforestation and greening projects, afforestation on difficult sites has become the backbone of forestry ecological engineering construction. Difficult sites, from the environmental point of view, mean to improve the local ecological environment under some difficult conditions; from the perspective of types, difficult sites refer to the types of sites that are difficult to afforestation, including high and steep barren slopes, sand erosion by wind and sand land, rocky desertification mountains, coastal beaches, dry hot valleys, arid and barren rocky mountains, saline-alkali lands, landslides and debris flow accumulations, water bank fluctuation zones, heavily p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02A01G17/00A01G23/04A01G25/00C05G3/04C05F17/00C05G3/80
CPCA01B79/02A01G17/005A01G23/04A01G25/00C05B7/00C05F17/00C05G3/80C05C9/00C05D9/00C05D9/02C05F5/00C05F11/08C05G1/00Y02A40/22Y02P60/40Y02W30/40
Inventor 曹建生沈会涛齐永青郝小华刘秀萍王贺辉
Owner INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
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