TECHNICAL METHOD FOR ASSESSING MULTI-TROPHIC-LEVEL HABITAT SUITABILITY ON BASIS OF HYDRODYNAMIC PROCESS

Abstract

Disclosed in the present invention is a technical method for assessing multi-trophic-level habitat suitability on the basis of a hydrodynamic process, which relates to the technical field of habitat suitability assessment of ecology, biology, hydrology and other disciplines. The method includes the following steps: acquiring hydrodynamic and habitat data of a watershed and obtaining terrain factors of the watershed; simulating a hydrodynamic process and water quality distribution of the watershed according to the terrain factors of the watershed; calculating and simulating, according to simulation results of the hydrodynamic process and water quality distribution of the watershed, distribution of a chlorophyll concentration in the watershed in consideration of production, respiration, digestion and sedimentation of chlorophyll; drawing change curves on coverage of emergent plants / submerged plants under different water depths in the watershed; and constructing suitability distribution curves on fish and assessing habitat suitability distribution of various trophic levels in different life cycles. The present invention can comprehensively and accurately reflect the habitat suitability of multiple trophic levels at multiple growth stages.

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