A biomanipulation method for lake ecosystems to promote the stability of submerged plant communities

A technology for submerged plants and ecosystems, applied in the field of biomanipulation of lake ecosystems to promote the stability of submerged plant communities, can solve problems such as ecological restoration failure, water quality deterioration, and unavoidable problems, to improve water quality, promote expansion and recovery, low cost effect
CN108640287BActive Publication Date: 2020-10-30NANJING INST OF GEOGRAPHY & LIMNOLOGY
7 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING INST OF GEOGRAPHY & LIMNOLOGY
Publication Date
2020-10-30

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a biomanipulation method capable of promoting stability of submerged plant communities for a lake ecosystem. The scheme comprises the following steps: setting stages of an ecological restoration period; determining growth conditions of submerged plants; measuring biomass of bottom-living fish; reducing the bottom-living fish. According to the method, the bottom-living fish in the ecological restoration project is reduced effectively according to practical restoration situation of the lake ecosystem, so that quality of the eutrophic water body is improved and repaired, expansion and restoration of the submerged plant communities are promoted, and the method has the characteristics of being safe, low in cost and the like.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of environmental protection, and in particular relates to a lake ecosystem biological manipulation method for promoting the stability of submerged plant communities. Background technique

[0002] A large number of practices of ecological restoration of shallow lakes have shown that after the lake reaches a clear water state, the submerged plant community is not stable enough and the ecosystem is not perfect, which leads to a rapid increase in the number of fish, which weakens or even leads to the failure of ecological restoration.

[0003] The negative effects of herbivorous fish such as grass carp on ecosystem restoration efforts are well-studied. In fact, the negative effects of benthic fish are not small. Their foraging activities not only release sediment nutrients and promote the growth of phytoplankton algae, but more importantly, they can also suspend sediment, reduce water transparency, and inhibit s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More