Comprehensive restoration method for salt-alkali degraded marsh wetland in plain area

A recovery method, salinity-alkali technology, applied in the direction of site preparation methods, botanical equipment and methods, climate change adaptation, etc., can solve problems such as unsatisfactory results, achieve easy maintenance and consolidation, strong vitality, and protect the wetland environment Effect

Inactive Publication Date: 2013-01-02
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to solve the problem that satisfactory results cannot be obtained by using land leveling technology, hydrological control technology or wetland vegetation restoration technology alone in the restoration process of saline-alkali degraded swamp wetland in the plain area. An Integrated Restoration Approach to Degraded Marsh Wetlands

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  • Comprehensive restoration method for salt-alkali degraded marsh wetland in plain area
  • Comprehensive restoration method for salt-alkali degraded marsh wetland in plain area

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specific Embodiment approach 1

[0017] Specific implementation mode 1: The comprehensive restoration method of the saline-alkali degraded marsh wetland in the plain area in this embodiment is carried out according to the following steps:

[0018] 1. Leveling the land: Choose a saline-alkali degraded marsh wetland with a width of 50m~60m and facing the water on the plain area to be restored. The land forms a small slope with the water surface, and the slope angle is 5° ~8°, using mechanical tools to loosen and level the saline-alkali degraded swamp wetland with the soil layer between the ground surface and the 18cm~22cm below the ground surface as the improved soil layer, and then establish the ditch water system of different heights at a location 5m from the waterfront Corresponding to the excavation of the first ditch on the slope, the width of the ditch is 15cm~20cm, the depth of the ditch is 20cm~25cm, and the second ditch is excavated on the corresponding slope at 25m from the waterfront line, the width of t...

specific Embodiment approach 2

[0024] The second embodiment: This embodiment is different from the first embodiment: In step one, a saline-alkali degraded marsh wetland with a width of 52m~58m and facing the water is selected, which forms a small slope with the horizontal surface. It is 6°~7°. The other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0025] Specific embodiment three: This embodiment is different from specific embodiment 1: In step 1, the first ditch is excavated on the corresponding slope at 5m from the waterfront, the width of the ditch is 16cm~18cm, and the depth of the ditch is 21cm~24cm. Excavate a second ditch on the corresponding slope at a location 25m from the waterfront, with a width of 16cm~18cm and a depth of 11cm~14cm, and excavate a third ditch on the corresponding slope at a location 40m from the waterfront, with a width of 16cm~18cm, groove depth 6cm~9cm. The other steps and parameters are the same as in the first embodiment.

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Abstract

The invention relates to a comprehensive restoration method for a salt-alkali degraded marsh wetland in a plain area, in particular to a restoration method for the salt-alkali degraded marsh wetland, and solves the problem that a satisfactory effect cannot be achieved as a land leveling technology, a hydrologic control technology or a wetland plant cover restoration technology is singly used in the conventional restoration process for the salt-alkali degraded marsh wetland in the plain area. The comprehensive restoration method comprises the steps as follows: 1, leveling land; 2, hydrologically controlling the salt-alkali degraded marsh wetland to be restored in the plain area; and 3, carrying out plant cover technology treatment on the salt-alkali degraded marsh wetland in the plain area. The comprehensive restoration method can be applied to the field of a restoration project for the salt-alkali degraded marsh wetland in the plain area.

Description

Technical field [0001] The invention relates to a method for restoring saline-alkali degraded marsh wetlands. Background technique [0002] Wetland is long-term or seasonally flooded or saturated land, with irreplaceable resource-providing capabilities and ecological functions. Since most people are not aware of the important functions of wetlands, for nearly half a century, due to human activities and climate change, wetlands have been in a process of declining area, deteriorating environment, and weakening functions. Wetlands in some areas The degradation of humanity even endangers the survival of mankind. In recent years, the frequent occurrence of natural disasters such as floods, droughts, red tides, sandstorms, and desertification in my country is closely related to the disappearance and degradation of many wetlands. For example, in 1998, a catastrophic flood in the Yangtze River Basin broke more than 2,000 embankments, submerged 2.83 million mu of arable land, and affect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/00A01G1/00
CPCY02A40/22
Inventor 张文广刘波佟守正
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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