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Repairing method of ecotome sandy coast protection forest afforestation

An ecologically fragile and shelterbelt technology, applied in coastline protection, afforestation, fertilization methods, etc., can solve the problems of tree weakness and withering, plant cytoplasm outflow, difficulty in obtaining afforestation survival rate and preservation rate, etc.

Inactive Publication Date: 2011-11-09
LIAONING FORESTRY SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

On difficult sites, without special technical measures, it is difficult to obtain a relatively ideal survival rate and preservation rate of afforestation according to conventional afforestation methods and technical measures
In the past, researches on afforestation on sandy coasts mainly focused on expanding hole soil, planting green manure, and mixing tree species to improve soil fertility conditions. Immersion, causing plant cytoplasm to flow out and resulting in plasmolysis and death, or due to the high content of coarse sand and fine sand in the sandy coastal sandy soil, serious fertilizer and water leakage, and tree weakening and wilting due to lack of water and nutrients, resulting in large-scale death

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The location of the experiment: both wings of Mengjiahai section of Binhai Highway, Wanjia Town, Suizhong County, Liaoning Province. For soil analysis, see Table 1 and Table 2

[0019] Table 1 Composition characteristics of soil particles

[0020]

[0021] Table 2 Soil nutrient characteristics

[0022] nutrients

[0023] From table 1 soil particle composition (soil particle grading standard adopts U.S. system, analysis method national technical standard GB) feature finds out, clay content only accounts for 2.9%-3.49% in sandy soil, silt accounts for 2.61-7.25%, and sand grain accounts for 89.85% -93.90%. Due to the small percentage of clay and silt, the physical properties of the soil are very poor. First of all, it does not retain water and store fertilizers. In the dry season from May to June in spring, the water content of sandy soil is usually 3-8%, and the soil organic matter is 0.09-0.3 From the results of soil nutrient status in the 0-50cm s...

Embodiment 2

[0033] Test location: the side of the sandy tidal flat near the sea in Zhimao Bay, Wanjia Town, Suizhong County, Liaoning Province

[0034] Clay loam embankment sand pressing: embankment soil texture: clay 35.6%, sand 33.7% and silt 30.7%. Clay loam construction specifications: embankment trapezoidal, slope angle 40-50 degrees, embankment height 120cm, embankment width 600-800cm.

[0035] Tree species: juniper, white wax, eucalyptus, 107 poplar, large seedling specifications: diameter at breast height of 4cm or more, tree height of 3m or more; mixed crossing method, row mixed; tree planting period from April 10th to April 12th; planting method: tree pit Specifications: 600×600cm, spacing between plants and rows: 3×4m, watering amount for planting trees: 35kg / pit, watering 35kg / pit once on May 26 during the drought period; test results: the survival rate of the year is 98%; the preservation rate of the second year 94%

Embodiment 3

[0037] Test location: Both wings of Xinmingang section of Binhai Highway, Suizhong County, Liaoning

[0038] Clay loam embankment sand pressing: embankment soil texture: clay 35.6%, sand 33.7% and silt 30.7%. Construction specifications: embankment trapezoidal, slope angle 50-52 degrees, embankment height 50cm, embankment width 250-300cm

[0039] Names of shrubs and herbaceous flowers: purple-leaved dwarf cherry, red-fleshed apple (dwarf), hosta, sedum, and horseshoe; specifications of seedlings and herbaceous flowers: crown width of shrubs is 50-60cm, height 150cm; crown width of herbaceous flowers is more than 15cm, Mixing method, shrub block mixed, herbaceous flowers mixed between rows, planting period: after April 5th; planting method: shrub tree hole size: 30×30cm, flower hole size: 15×15cm, watering amount: 2.5kg / hole. During the drought period, water once in late May to early June, with an average water volume of not less than 2kg per hole, and once in early and mid-...

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Abstract

The invention relates to an ecological repairing method of sandy coast coastal protection forest, in particular to a repairing method of ecotome sandy coast coastal protection forest afforestation. Specially, embankment afforestation is carried out by clay loam near the costal road of a protection forest ecotome sandy coast or sand tidal flat facing the sea so as to improve the physical and chemical properties of sandy soil, inhibit salt, retain water, preserve fertilizer and perform the action of protection. The invention uses a clay loam embankment method to raise jejune, fertilize-leaking and water-leaking sandy soil on the sandy coast line as well as sandy coast at two wings of ocean roads into embankment-type forest land; the clay loam physical property and moisture content conditionof an embankment wood pad layer can satisfy the fertility requirements of water, fertilizer, gas and heat for plant growth; and compared with other soil textures, the forest land has higher field water-holding capacity as well as moisture and fertilizer retention capability, and effectively holds the physiological activity of various organic matters and active enzymes in soil so as to ensure qualified afforestation survival rate and conservation rate.

Description

technical field [0001] The invention relates to a method for ecological restoration of coastal protection forests on sandy coasts, in particular to a method for repairing and afforestation of coastal protection forests in ecologically fragile sandy coasts. Background technique [0002] The common characteristics of sandy coastal soil are that the content of soil clay and silt is low, the content of coarse sand and fine sand is high, the performance of water and fertilizer retention is very poor, the leakage of fertilizer and water is serious, and the soil fertility is very low. Therefore, it is more difficult to build protective forests and landscape green belts on sandy coastlines, the survival rate and preservation rate of afforestation are low, and the phenomenon of small old trees and the death of afforestation patches are common. On difficult sites, without special technical measures, it is difficult to obtain a relatively ideal survival rate and preservation rate of af...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G23/00A01C21/00E02B3/06
CPCY02A40/22Y02P60/40
Inventor 顾宇书邢兆凯赵冰高军于世河陈罡叶景丰
Owner LIAONING FORESTRY SCI RES INST
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