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Method of repairing and establishing vegetation in saline-alkali environment

A vegetation and environmental technology, applied in botany equipment and methods, sowing, horticulture, etc., can solve the problems of impossibility of sowing method restoration and fixed-point supplementary planting, impossibility of irrigation, and seeds are easily washed away by water, so as to facilitate germination Growth, wide applicability, and the effect of restoring desert ecology

Active Publication Date: 2008-11-19
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Chinese patent application number is 97106197.1, which only describes the artificial cultivation method of wild Suaeda salsa, which relates to the artificial cultivation of Suaeda salsa plants in saline-alkali land. Though also can be used for the vegetation construction of desert environment, take technical measures such as site preparation sowing management for vegetation restoration or rebuilding in saline-alkali environment, the planting method that it provides has following shortcoming: 1, the planting method of above-mentioned invention and designed The sowing depth is in the inland arid saline-alkaline desert, and the seeds are easily blown away by the wind due to the strong wind, while in the coastal saline-alkaline wetland tidal flat, the seeds are easily washed away by the water; 2. In the inland saline-alkali desert, Due to the extremely dry climate, it is impossible to realize irrigation; 3. The death and decline of natural or artificial Suaeda salsa vegetation often appear in small patches, which cannot be repaired and repaired by planting methods such as machinery or ditching. Fixed-point supplementary planting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1, establish Suaeda salsa vegetation in desert:

[0012] 1) Half an acre of saline-alkali wasteland with 8% salt content in the exposed inland surface layer is selected and divided into uniform squares and two diagonal lines are drawn to uniformly tie the holes on the four sides and diagonal lines of the square with an interval of 10 cm. The holes are 5 cm deep and 1 cm in diameter;

[0013] 2) Sowing the seeds of Suaeda salsa in October in the above-mentioned holes, sowing 1-3 grains in each hole, no irrigation, no management, the germination rate in early April of the next spring is 100%, natural growth, no harvesting Harvest the seeds and dead branches. From the third year, the Suaeda salsa generated by the scattered seeds will cover 99% of the land to form a community.

Embodiment 2

[0014] Embodiment 2, carry out restoration planting at the Suaeda salsa community of decline:

[0015] 1) Select the inland saline-alkali land where there is death and alopecia areata-like exposed Suaeda salsa community, the salt content of the surface soil is 5%, and the area of ​​alopecia areata in the restoration area is irregular about 10m 2 one piece, 5m 2 one piece, 2m 2 One piece, 0.3m 2 One piece, uniformly pierced at an interval of about 10 cm in front, back, left, and right of the above-mentioned land, and the holes are 5 cm deep and 0.6 cm in diameter;

[0016] 2) Sowing the seeds of Suaeda salsa in the above-mentioned holes in October, sowing 1-5 grains in each hole, no irrigation, no management, 100% germination rate at the beginning of April in the next spring, natural growth, no harvesting of seeds and For the dead branches, Suaeda salsa was about to complete the restoration of 100% coverage of the above-mentioned alopecia areata.

Embodiment 3

[0017] Embodiment 3, restoration of alopecia areata exposed in coastal tidal estuary wetland Suaeda salsa community:

[0018] 1) Select the Suaeda salsa community with exposed alopecia areata in Guhe Estuary, the salt content of tidal flat soil is 3-8%, and the area of ​​alopecia areata is irregular about 30m 2 One piece, 25m 2 one piece, 2m 2 One piece, uniformly pierced at an interval of about 6-10 cm in front, back, left, and right of the above-mentioned land, and the holes are 5 cm deep and about 1 cm in diameter;

[0019] 2) Sowing the seeds of Suaeda salsa in October in the above-mentioned holes, sowing 3-6 grains in each hole, without irrigation and management, the germination rate in early May of the next spring is 100%, and it grows naturally. The Suaeda salsa planted in that year It is about to complete the restoration of 100% coverage of the above-mentioned alopecia areata plot.

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Abstract

The invention relates to a cultivation technology for vegetation, in particular to a method for vegetation restoration and vegetation establishment in the saline and alkaline soil. The method comprises the following steps: firstly, bare desert soil is selected, then holes are arranged at arbitrary intervals, the depth of each hole is 4 to 10 cm, and the diameter thereof is 0.3 to 2 cm; secondly, the seeds of halophytic vegetation are sowed in the holes, and one to twenty seed(s) is (are) sowed in each hole. By adopting the method for the vegetation establishment, the seeds are directly sowed in the holes so as to realize accurate planting in defined point and ensure plant survival. In the harsh desert or wetland environment, the seeds in the holes can maintain sufficient temperature and humidity so as to be favorable for germinating and growing, and the seeds cannot break ground difficultly because of excessively thick covered soil nor be washed away by strong wind or flowing water. The method has the advantages of flexible and convenient operation and wide application range, and can be widely applied to the ecological construction of desert, the vegetation restoration protection engineering and the landscape engineering.

Description

technical field [0001] The invention relates to vegetation cultivation techniques, in particular to a method for planting halophytes in saline-alkaline deserts or carrying out ecological restoration for the death and decline of natural halophytes to maintain vegetation coverage. Background technique [0002] The saline-alkali environment prevents most plants from growing due to the excessive saline-alkali in the soil and water. These bare saline-alkali lands will form a thick saline-alkali layer under strong evaporation, such as in the northwest, northeast, and north of China. In the saline-alkali deserts that are common in the region, the saline-alkali soil layer is easily blown up by the wind due to the extremely fine particles, forming saline-alkali dust and saline-alkali dust storms, causing environmental disasters, affecting the health of humans and animals, and causing pollution of arable land, ground surface Runoff pollution, groundwater pollution and air pollution. ...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01C7/00
Inventor 邢军武
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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