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Method for returning ponds for recovery of forests and wetlands

A technology of fish ponds and pioneer tree species, applied in cultivation, agriculture, application, etc., can solve the problems of low survival rate of afforestation and low biodiversity

Active Publication Date: 2019-09-27
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new method for returning ponds to forests and wetlands in order to overcome the defects of low afforestation survival rate and low biodiversity when adopting the existing method for returning ponds to forests

Method used

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  • Method for returning ponds for recovery of forests and wetlands

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Embodiment approach

[0010] According to a preferred embodiment of the present invention, when the bottom elevation of the fish pond is above the mean sea level and not higher than the spring tide high tide line, then the whole fish pond is planted with mangrove seedlings; when the bottom of the fish pond When the elevation is below the mean sea level, then the said fish pond does not plant any plants at the elevation below the mean sea level, and mangrove plant seedlings are only planted on the embankment edge and embankment of the fish pond above the mean sea level, so that except when the tide is low In addition to the stagnant water area, a part of bare tidal flats can be reserved around the water stagnant area to create space for birds to forage and benthic animals to inhabit.

[0011] In the present invention, the middle and low tide zone is dominated by pioneer tree species means that the proportion of pioneer tree species is more than 90%, preferably more than 95%, more preferably 100%. Th...

Embodiment 1

[0017] This embodiment is used to illustrate the method for returning ponds to forests and returning wetness provided by the present invention.

[0018] Choose a fish pond whose bottom elevation is lower than the average sea level (less than 10 acres), and open two gaps with a width of 3 meters near the ditch to drain the water in the fish pond. The depth of the gap in the fish pond is such that the ebb tide At this time, the bottom of the fish pond should retain a part of the accumulated water area to facilitate fish habitat and birds foraging.

[0019] Next, mangrove seedlings are artificially planted. The tree species configuration mode is determined according to the elevation, and no mangrove seedlings are planted in the part below the mean sea level. Plant cotyledon bag seedlings in the mid-low tide zone (planting density is 800 plants / mu), plant candiba hypocotyls or bag seedlings in the mid-tidal zone (the depth of the candela hypocotyl is 1 / 3 of the total length of the...

Embodiment 2

[0022] This embodiment is used to illustrate the method for returning ponds to forests and returning wetness provided by the present invention.

[0023] Choose a fish pond whose bottom elevation is higher than the mean sea level but lower than the high tide line, and open two gaps with a width of 3 meters near the ditch to discharge the water in the fish pond, and the depth of the gap in the fish pond is such that the ebb tide When there is no water at the bottom of the fish pond.

[0024] Then mangrove seedlings are artificially planted, the tree species configuration mode is determined according to the elevation, and mangrove seedlings are planted in the whole fish pond. Plant tung tree bag seedlings in the mid-low tide zone (planting density is 667 plants / mu), plant red sea olive bag seedlings (planting density is 667 plants / mu) in the mid-tidal zone, and plant sea lotus bag seedlings in the high tide zone (planting density is 667 plants / mu) mu), and the embankment of fish...

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Abstract

The invention relates to the field of pond returning for recovery of forests and wetlands and discloses a method for returning ponds for recovery of forests and wetlands. The method comprises the steps of selecting the fish ponds with the bottom elevations lower than a high tide line, forming gaps to completely or partially discharge water in the fish ponds, and then selecting mangrove plant seedlings for planting according to different elevations, wherein pioneer tree species are mainly planted in a middle-low tide zone, kandelia candel and / or rhizophora stylosa is planted in a middle tide zone, at least one of bruguiera gymnorrhiza, bruguiera sexangular and ceriops tagal is mainly planted in a high tide zone, and at least one of excoecaria agallocha, lumnitzera racemosa and semi-mangrove plants is mainly planted on the banks of the fish ponds. By adopting the provided method for returning the ponds for recovery of forests and wetlands, not only can the survival rate of afforestation be increased, but also the manufacturing cost is reduced, the heterogeneity of the ecological environment can also be obviously improved, and a foraging and habitat space is created for birds, fishes and benthic animals; the requirements of a wetland remediation principle which adopts ecology as the top priority, natural remediation as the main content and artificial auxiliary remediation as the auxiliary content are met, and the wetland remediation purpose of building forests and wetlands on appropriate sites is achieved.

Description

technical field [0001] The invention belongs to the field of returning ponds to forests and wetlands, and in particular relates to a method for returning ponds to forests and wetlands. Background technique [0002] Aquaculture in ponds is the main reason for the destruction of mangroves in my country. As of 2014, aquaculture fishponds have accounted for more than 30% of all coastlines, accounting for about 60% of all artificial coastlines. Pond farming not only directly destroys a large area of ​​mangroves, but also brings about the problem of aquaculture sewage. The sewage discharged from fish ponds and shrimp ponds has become one of the most important sources of pollution in my country's coastal zone. In addition, due to low breeding efficiency, some fish ponds are idle. Therefore, transforming fish ponds and shrimp ponds into mangrove wetlands has become one of the main ways to increase the area of ​​mangrove wetlands in my country. However, at present, various places h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00
CPCA01G17/005
Inventor 王瑁康怡阳王文卿
Owner XIAMEN UNIV
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