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Method for judging vegetation recovery of plots as wetlands returned from grain plots in plain areas, vegetation recovery method and vegetation recovery effect evaluating system

A technology for vegetation restoration and wetland plants, applied in the fields of botanical equipment and methods, plant cultivation, complex mathematical operations, etc., can solve the problems of restoration methods and effect evaluation of returning farmland to wetlands without plain areas, and achieve good ecological and environmental benefits, Good material base and living environment, the effect of improving species productivity and biodiversity

Inactive Publication Date: 2020-03-27
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problem of judging the restoration method and effect evaluation of returning farmland to wetland in the prior art, and to provide a method for judging the restoration of vegetation in the field of returning farmland to wetland in the plain area, vegetation restoration and vegetation restoration effect evaluation system system

Method used

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  • Method for judging vegetation recovery of plots as wetlands returned from grain plots in plain areas, vegetation recovery method and vegetation recovery effect evaluating system
  • Method for judging vegetation recovery of plots as wetlands returned from grain plots in plain areas, vegetation recovery method and vegetation recovery effect evaluating system

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Effect test

specific Embodiment approach 1

[0030] Specific implementation mode 1: In this implementation mode, the method for judging the vegetation restoration of the converted farmland to wet land in the plain area is as follows:

[0031] 1. Determination of returned farmland and collection of soil samples:

[0032] In May, the soil with a surface area of ​​25cm × 25cm and a thickness of 10cm was collected at the collection point; the soil seeds were screened by the seed germination method in the greenhouse, and the average value of each species and its seed density in the soil of the returned farmland was obtained;

[0033] 2. Judging the recovery method

[0034] Classify the species, and compare the seed bank of the converted farmland to wetland with the control wetland. When the species and quantity of the wetland species in the converted farmland to wetland are lower than 25% of the control wetland, or the collection of wetland species in the soil provenance of the converted farmland If the ratio of seed density...

specific Embodiment approach 2

[0035] Specific embodiment two: what this embodiment is different from specific embodiment one is the seed germination method in step one:

[0036]In the greenhouse, the seed germination method is used to diagnose the provenance of the soil samples collected in step 1. The greenhouse is kept ventilated, which is consistent with the external temperature and humidity conditions; the specific diagnosis method is: firstly, remove the gravel from the soil samples collected in step 1. , mix evenly, and then spread the uniformly mixed soil samples in the culture pots equipped with vermiculite, divide the culture pots into 3 groups, then place the 3 groups of culture pots in 3 culture tanks respectively, and then cultivate the The pots were wetted, flooded, and wet+flooded alternately; every two weeks, the number of individuals of each plant that germinated in each pot was counted, and after 3 months, the names of the species that germinated in the three groups of pots were counted. a...

specific Embodiment approach 3

[0038] Specific implementation mode three: the difference between this implementation mode and specific implementation mode one or two is that the selection of the control wetland described in step two and the vegetation survey method are as follows:

[0039] Select the natural wetland closest to the converted wetland as the reference wetland; from July to August, conduct the investigation of the surface vegetation of the reference wetland; during the vegetation investigation, 9 quadrats are evenly arranged per hectare of the reference wetland, and the size of each quadrat is 1m×1m, record the name, number of plants, height and coverage of species in each quadrat, and record the water depth, longitude and latitude of each quadrat; after the vegetation survey is completed, count the plant species in the reference wetland Record, and then calculate the importance value of each species in the reference wetland; sort the reference wetland plant species list according to the importa...

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Abstract

The invention provides a method for judging vegetation recovery of plots as wetlands returned from grain plots in plain areas, a vegetation recovery method and a vegetation recovery effect evaluatingsystem, relates to the method for judging vegetation recovery of plots as wetlands returned from grain plots in plain areas, the vegetation recovery method and the vegetation recovery effect evaluating method, and aims to solve the technical problems that in the prior art, a method for judging recovery of plots as wetlands returned from grain plots in plain areas and a method for evaluating effects do not exist. The method for judging vegetation recovery of plots as wetlands returned from grain plots in plain areas and the evaluating method comprise the following steps of I, determining the plots to be returned from grain plots, and collecting soil samples; II, executing a method for judging recovery; III, performing communication of water systems, establishing 40-60cm micro water level gradients of which the slope is smaller than 5 degrees, and performing wetland recovery; and IV, evaluating the recovery effects. When the methods disclosed by the invention are used, after the wetlandsare recovered at the plots as wetlands returned from grain plots, fixed quadrats are established, vegetation investigation is continuously performed, compared with a contrast wetland, the recovered wetland has the progress that the biological diversity is recovered to 72%, and the biomass is recovered to 90%, and the wetland recovery effects of the plots as wetlands returned from grain plots areideal. The invention belongs to the field of returning the grain plots to wetlands.

Description

technical field [0001] The invention relates to a method for judging the restoration of vegetation in land that has been returned to wetlands, a method for restoration of vegetation, and a method for evaluating restoration effects. Background technique [0002] The functions of wetlands are diverse, including economic, social, cultural and ecological functions. Many resources in human production and life are provided by them, and they play an important role in many aspects. For example, wetlands can regulate climate and maintain water sources. and conservation of biodiversity. [0003] Large-scale wetland restoration in the world began in the late 1980s and early 1990s. In 1996, the Sixth Conference of the Parties to the Convention on Wetlands proposed that the contracting parties carry out wetland restoration. In 2002, the Eighth Conference of the Parties passed the "Guidelines for Wetland Restoration", which further promoted the restoration of wetlands in various countrie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/00A01C1/00G06F17/18G06Q50/02
CPCA01C1/00A01G22/00G06F17/18G06Q50/02Y02A40/22
Inventor 张文广王国栋姜明刘波吕宪国
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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