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A Quantitative Analysis Method for the Effect of Gate and Dam Regulation on the Spatial Characteristics of Fish Habitat

A technology of fish habitat and spatial characteristics, which can be used in fish farming, climate change adaptation, data processing applications, etc., and can solve problems such as insufficient accuracy

Active Publication Date: 2019-08-16
NANJING HYDRAULIC RES INST
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Problems solved by technology

Most of the traditional methods use the effective weighted area as the indicator for evaluating the spatial characteristics of habitats to reflect the impact of dam operation on fish habitats, but the accuracy is not enough

Method used

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  • A Quantitative Analysis Method for the Effect of Gate and Dam Regulation on the Spatial Characteristics of Fish Habitat
  • A Quantitative Analysis Method for the Effect of Gate and Dam Regulation on the Spatial Characteristics of Fish Habitat
  • A Quantitative Analysis Method for the Effect of Gate and Dam Regulation on the Spatial Characteristics of Fish Habitat

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Embodiment Construction

[0052] Such as figure 1 As shown, the quantitative analysis method of the influence of gate and dam regulation on the spatial characteristics of fish habitats in this embodiment includes the following steps:

[0053] (1) Carry out the investigation of the status quo of fish resources in the study area, and then use the AHP method to screen the target fish.

[0054] This step specifically includes:

[0055] (1-1) Investigation of the current status of fish resources: According to the current status and historical data of fish resources in the research area, determine the candidate fish for the calculation of ecological flow in rivers with multiple gates and dams. Among them, the investigation of the current status of fish resources includes the investigation of fish population , Determining the structural status of fish populations, mastering the utilization of fisheries, and studying the changes in fish populations and quantities.

[0056] When collecting fish specimens, in ...

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Abstract

The invention discloses a quantification analysis method of fish habitat space characteristics influenced by gate dam regulation and control; the method comprises the following steps: investigating fish resource present situations in a research area, and screening a target fish; aiming at the screened target fish, and using indoor stress experiments and history data to build a quantification response relation curve of the target fish with respect to key habitat factors; gathering research area basic hydrology and landform data so as to build a water-power water environment model, and combiningthe quantification response relation curve of the target fish with respect to key habitat factor so as to build a habitat model facing fish habitats; introducing a landscape ecology theory and methodso as to evaluate the space characteristics of the habitat simulation result facing the fish habitat, and quantitatively analyzing the influences on the fish habitat space characteristics by the gatedam operations. The method can guide multi-gate dam river ecology restorations and protections, thus providing important theory and practice meanings for basin water resource planning and configurations.

Description

technical field [0001] The invention relates to the technical field of water conservancy, in particular to a quantitative analysis method for the influence of gate and dam regulation on the spatial characteristics of fish habitats. Background technique [0002] Rivers are the support system of life on earth and important channels for material transfer and energy flow. Rivers are rich in water resources and hydropower resources, and barrages and dams are one of the important ways for human beings to develop and utilize river resources. In order to meet the needs of social and economic development, humans have built a large number of dam projects on rivers. While the operation of gates and dams has brought huge social and economic benefits, it has changed the original material field and energy field of the river, directly affected the biogeochemical behavior of biogenic elements in the river, and further changed the species composition and habitat distribution of the river ec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/02A01K61/10
CPCY02A20/402Y02A40/81
Inventor 陈求稳王丽唐磊李若男陈诚关铁生
Owner NANJING HYDRAULIC RES INST
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