A high mountain river metabolic characterization method based on flow modulus

Abstract

The application discloses a high mountain river metabolism characterization method based on flow modulus, and comprises the following steps: step 1, obtaining the basic data of a target river section, including flow, slope, dissolved oxygen, water temperature and atmospheric pressure; step 2, deducing a target river flow modulus calculation formula based on a constant flow continuity equation and a uniform flow power equation and performing calculation; step 3, calculating the metabolism of the target river, including total primary production and respiratory rate; and step 4, fitting and establishing a correlation relationship according to the flow modulus and the calculation result of the metabolism of the target river, so as to realize the characterization of the metabolism of the target river. The method is pioneering in applying the flow modulus to the characterization of the metabolism of the high mountain river, the index simultaneously considers the influence of the slope on the river metabolism, and can effectively identify the metabolism of the high mountain river; compared with the flow, the index is more trend-oriented, and is particularly suitable for the metabolism characterization of the high-drop river in the turbulent plateau mountain area.

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