Method for promoting recovery of marsh plants in wetland field blocks reverted from cultivated land in plain area

A technology for wetland plants and fields, applied in botany equipment and methods, plant cultivation, horticulture, etc., can solve the problems of poor restoration of plant diversity and achieve the goal of preventing the invasion of alien species, increasing diversity, and high survival rate Effect

Active Publication Date: 2015-05-13
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem of poor restoration of plant diversity in the process of returning farmland to wetland on the edge of the existing wetlands in

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Embodiment 1: The present embodiment is a method for promoting the restoration of swamp plants in the field of “returning farmland to wetness” in the plain area, which is specifically carried out according to the following steps:

[0022] 1. Sampling the soil of the field to be restored and the adjacent natural wetland soil in the area, and carry out the germination experiment of the wetland plant seed bank on the sampled soil. The number of wetland plant species in the soil of the field to be restored accounts for the number of species in the natural wetland soil seed bank More than 70%, and the density of the seed bank in the soil of the field to be restored is more than 60% of the density of the natural wetland seed bank, and the unit of seed bank density is grain / m 2 , the soil of the field is mildly degraded, and the soil of other fields is severely degraded;

[0023] 2. Excavate 1-3 shallow blisters in the field to be restored. The depth of the shallow blisters is...

Example Embodiment

[0027] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step 2, the depth is 28 cm, the width of the ditch is 60 cm, the height of the ridge is 34 cm, the width of the ridge is 65 cm, and the spacing between the ridges and ditch is 3 m. Others are the same as the first embodiment.

Example Embodiment

[0028] Embodiment 3: The difference between this embodiment and Embodiment 1 is that in step 3, the tiling adopts distributed tiling, the interval length is 5m-10m, and the length of the tiling is 1m-3m. Others are the same as the first embodiment.

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Abstract

The invention provides a method for promoting recovery of marsh plants in wetland field blocks reverted from cultivated land in a plain area, and relates to the method for promoting recovery of the marsh plants in the field blocks. The method aims to solve the problem that when a recovery process of reverting cultivated land to wetland is conducted on the cultivated land generated through moors in the edges of the wetland in the plain area in a reclamation mode, the plant diversity recovery effect is poor. The method includes the steps that 1, a wetland pant seed bank germination experiment is conducted on the soil of the wetland field blocks reverted from the cultivated land; 2, field block microtopography is built; 3, micro hydrology regulation is conducted on the field blocks; 4, vegetation recovery is conducted. According to the method, only the micro hydrological landscape within a small space scale is required to be improved, the work amount is small, manual interference is less, and the method is easy to implement; a local plant seed bank and plants are utilized, invasion of foreign species is avoided, and the rapid recovery ability of the plants is improved; the method is used for promoting diversified recovery of the marsh plants in the wetland field blocks reverted from cultivated land in the plain area.

Description

technical field [0001] The present invention relates to a method of promoting the restoration of swamp vegetation in a field. 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. Wetlands play an important role in maintaining regional ecological balance and protecting biodiversity. However, due to the influence of human activities, especially the policy of biased pursuit of food production in history, large swamps and wetlands in the plains have been reclaimed. Unreasonable large-scale reclamation and degradation of wetlands have affected the original ecological regulation, supply and support functions of wetlands, changed the stability of regional ecosystems, caused serious water and soil erosion, and frequent regional floods and droughts (Liu Xingtu, Ma Xuehui. 2002 . Sanjiang Plain Natural Environment Change and Ecological Conservation. Beijing: Scie...

Claims

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Application Information

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IPC IPC(8): A01G1/00
CPCA01G22/00
Inventor 武海涛马红媛吕宪国姜明佟守正刘波
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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