Journal of Changjiang River Scientific Research Institute ›› 2014, Vol. 31 ›› Issue (6): 7-11.DOI: 10.3969/j.issn.1001-5485.2014.06.0022014, 31(06):7-11

• WATER RESOURCES AND ENVIRONMENT • Previous Articles     Next Articles

Fish Habitat Quality Evaluation Based on Indexesof Landscape Ecology

LI Wei-ming1, CHEN Qiu-wen1, 2, LIU De-fu3, 4, HUANG Ying-ping1   

  1. 1.College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China;
    2.Research Center for Eco-Environment, Nanjing Hydraulic Research Institute, Nanjing 210029, China;
    3.Engineering Research Center of Eco-environment in Three Gorges Reservoir Region under Ministry ofEducation, China Three Gorges University, Yichang 443002, China;
    4.School of Resourcesand Environment, Hubei University of Technology, Wuhan 430000, China
  • Received:2014-02-18 Revised:2014-06-06 Published:2014-06-01 Online:2014-06-01

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Abstract: A fish habitat suitability model was developed using fuzzy comprehensive evaluation method by coupling water environment model. Indexes in landscape ecology were introduced into the model to evaluate the quality of fish habitat based on the output of HSI (Habitat Suitability Index) model. A compound channel in the middle reach of Lijiang River was selected for the case study on Spinibarbus hollandi. The HSI model for Spinibarbus hollandi in its spawning period was established. Evaluations of fish habitat based on the modelling results showed that WUA (Weighted Usable Area) cannot be the only index to precisely reflect habitat quality. Other Indexes such as the number and cohesiveness of patch and the degree of connectivity should also be included. The evaluation method in this research can be a helpful reference for fish habitat protection.

Key words: habitat suitability, indexes of landscape ecology, habitat quality

CLC Number: 

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