Method for ecological system restoration by food web

An ecosystem and ecological restoration technology, applied in the fields of botanical equipment and methods, horticultural methods, applications, etc., can solve the problems of ecological restoration, reconstruction and restoration, and the ecological risk of alien species, which takes a long time, to avoid ecological risks, shorten time, and promote quick effect

Active Publication Date: 2013-04-10
TIANJIN UNIV
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Problems solved by technology

[0004] In order to solve the problems existing in the prior art, the present invention provides a method of using food webs to restore the ecosystem, which solves the ecological risk problems caused by the long time for ecological restoration, reconstruction and restoration of balance in the prior art and the introduction of alien species

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  • Method for ecological system restoration by food web

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Embodiment Construction

[0019] The following is aimed at the restoration and reconstruction of the coastal degraded ecosystem in the Bohai Bay, taking a harbor basin in Tianjin Lingang Economic Zone as an example, combined with the attached figure 1 and figure 2 The composite restoration method for constructing local key food webs of the present invention is described in detail.

[0020] 1 Key food web construction

[0021] 1.1 Common Species

[0022] The food chain in the Bohai Bay is a food chain on the coastal continental shelf, which is divided into four nutritional levels: producers, herbivores, first-level carnivores, and second-level carnivores. In Bohai Bay, the main producers are phytoplankton; the plant-eating animals are mainly zooplankton, and there are also various crustaceans, shellfish, etc.; the first-class carnivores are mainly first-class carnivorous fish; the second-class carnivores are mainly Secondary carnivorous fish. Since the aquatic resources along the coast of Tianjin a...

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Abstract

The invention discloses a method for ecological system restoration by a food web. The method comprises the following steps of (1) ecological restoration reconstruction region survey; (2) key food web building; (3) key food web nutrition relationship quantification; and (4) ecological system restoration reconstruction. The ecological restoration method has the advantages that the method starts from the introduction of local species, the ecological risk such as non-indigenous organism invasion generated in the ecological system restoration reconstruction is avoided; the introduced ecological restoration reconstruction region is the local key food web, i.e. an ecological system with the complete structure is formed, the fast forming of a new ecological system is promoted, the ecological risk can be avoided, and the time for introduced species to be merged into the new system again can also be shortened; and the ecological system with little man-made interference is selected as a basis reference, the nutrition relationship of the newly built food web is quantitated, and the relative balance and stability of the newly formed ecological system is ensured.

Description

technical field [0001] The invention belongs to the field of ecological restoration and reconstruction, and in particular relates to an ecological restoration and reconstruction technology based on building a local food web. Background technique [0002] With more and more human interference activities on the ecosystem, coupled with climate change and natural disasters, the load on the ecosystem is increasing, many ecosystems have been greatly affected, and have begun There are obvious degradation phenomena, such as the decline of biomass and species composition, and the transformation of dominant fish species in the ocean from relatively high-quality species to relatively low-quality species, etc. The degradation of the ecosystem will affect the normal performance of its own ecological functions and reduce its service value to human beings. In view of the importance of ecosystems to human survival and development, it has become an important task for humans to restore degra...

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Application Information

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IPC IPC(8): A01G1/00A01G7/00A01K61/00
CPCY02A40/81
Inventor 尤学一郑婷
Owner TIANJIN UNIV
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