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Ecological reconstruction method for plant diversity after returning of abandoned farmland to marsh wetland

A variety and plant technology, applied in botany equipment and methods, soil preparation methods, plant cultivation, etc., can solve the problems of difficult restoration of plant diversity, achieve the effect of increasing wetland biodiversity, low cost, and simple methods

Inactive Publication Date: 2016-07-27
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem that the plant diversity is difficult to restore after returning farmland to wetland after returning farmland to wetland, the present invention proposes a plant diversity ecology after returning farmland to swampy wetland by introducing natural wetland soil propagule bank. method of reconstruction

Method used

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specific Embodiment approach

[0025] The technical solution of the present invention is not limited to the specific embodiments listed below, but also includes any reasonable combination between the specific embodiments

specific Embodiment approach 1

[0026] Specific implementation mode 1: In this implementation mode, a method for ecological reconstruction of plant diversity after returning farmland to swamp wetland, the method is carried out according to the following steps:

[0027] 1. Removal of topsoil from degraded land:

[0028] The collection time is after the surface ice and snow melt and before the wetland plants turn green. Select the returned farmland where the ecological reconstruction of plant diversity is to be carried out. Use machinery to remove the 15cm-20cm of cultivated soil on the surface of the returned farmland, then level the land, and finally build around the returned farmland. Soil ridges with a height of more than 30cm;

[0029] 2. Collection of natural wetland soil propagule bank:

[0030] The collection time is from late April to mid-May in spring, after the surface ice and snow melt, and before the wetland plants turn green; the collection area is the distribution area of ​​the Carex community ...

specific Embodiment approach 2

[0042] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the area of ​​the soil sample collected in step two is (8cm~10cm)×(8cm~10cm), the thickness is 8cm~10cm, and the collection time phase The distance between adjacent soil samples is greater than 5m. Other steps and parameters are the same as those in the first embodiment.

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Abstract

The invention provides an ecological reconstruction method for the plant diversity after returning of an abandoned farmland to a marsh wetland, and relates to a method for reconstructing the plant diversity of the marsh wetland.The method is used for solving the problem that after the process of returning the abandoned farmland to the marsh wetland, the plant diversity of the abandoned farmland marsh wetland is difficult to recover.The method comprises the steps of 1 abandoned farmland surface soil removing; 2 natural wetland soil propagule bank collecting; 3 abandoned farmland soil propagule bank introducing; 4 hydrological controlling of the abandoned recovery farmland; 5 non-target species removing in the initial stage of reconstruction.The method is simple, convenient and high in reconstruction speed, can be widely applied to ecological reconstruction of the abandoned farmland marsh wetland in the north and is suitable for reconstructing the plant diversity of the marsh wetland.

Description

technical field [0001] The invention relates to a method for ecological reconstruction of plant diversity. Background technique [0002] Wetlands are the ecological landscape with the richest biodiversity in nature and one of the most important living environments for human beings. Due to the intensification of human activities, wetland ecosystems have also become one of the most threatened habitat types. In recent years, with the in-depth understanding of the importance of wetlands and the strengthening of wetland protection, a series of large-scale wetland restoration projects such as "converting farmland to wetland" have been gradually carried out in China. After intensive wetland agricultural development, in response to the national ecological civilization construction and environmental protection strategy requirements, large-scale wetland restoration work is being implemented. However, due to the late start, there are still technical bottlenecks in the vegetation rest...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01B79/02E02D3/00
CPCA01B79/02A01G22/00E02D3/00
Inventor 王国栋姜明王铭吕宪国
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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