A device for distinguishing active state and residual state of nutrient salt in a river basin
CN121148514BActive Publication Date: 2026-04-28INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
- Filing Date
- 2025-09-02
- Publication Date
- 2026-04-28
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Figure CN121148514B_ABST
Abstract
The application discloses a kind of watershed nutrient salt active state and residual state distinguishing device determines river monitoring section at the outlet of watershed, monitoring device is used in the river monitoring section, and runoff data and nitrogen, phosphorus concentration data are synchronously measured by the monitoring device;Runoff data and river nitrogen, phosphorus concentration data at the outlet of watershed are continuously collected by the monitoring device, and the collected data are pretreated;The relationship between river flow and nutrient salt load is fitted by regression analysis, and the quantitative distinction of active source and residual source of nitrogen and phosphorus in watershed is realized.
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Citation Information
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