METHOD OF ESTIMATION OF TROPHISM OF WATER OBJECTS Russian patent published in 2017 - IPC G01N33/18 

FIELD: ecology.

SUBSTANCE: invention can be used to assess the trophism of water bodies (WB). To do this, the spectrometer measures the spectral brightness of the radiation rising from the WB in the wavelength range 420-750 nm, in comparison with the spectral brightness of the standard, which is chosen as the orthotropically scattering white plate. Then, the coefficients of spectral brightness (CSB) are calculated, hereinafter referred to as the ratio of the measured spectral luminances of the WB and the reference ρλ; as the criterion of trophicity, choose the shape of the spectrum ρλ; on the form ρλ of the spectrum is divided into six categories, namely: category I with the ratio: ρ570>ρ630; ρ630>ρ645; ρ645>ρ675; ρ675>ρ700; ρ700>ρ740 characterizes oligotrophic WB, category II with the following ratio: ρ570>ρ630; ρ630>ρ645; ρ645>ρ675; ρ675=ρ700; ρ700>ρ740 characterizes the mesotrophic WB, category III with the ratio: ρ570>ρ630; ρ630≈ρ645; ρ645>ρ675; ρ675<ρ700; ρ700>ρ740 characterizes a mesotrophic eutrophic WB, category IV with a ratio ρ560>ρ620; ρ620<ρ645; ρ645>ρ675; ρ675<ρ700; ρ700>ρ740; ρ645≈ρ700 characterizes eutrophic WB, category V with the ratio: ρ560>ρ630; ρ630<ρ645; ρ645>ρ675; ρ675<ρ700; ρ700>ρ740; ρ700>ρ645 characterizes polyeutrophic WB, category VI with the following relationship: ρ560>ρ630; ρ630<ρ645; ρ645>ρ675; ρ675<ρ700; ρ700>ρ740; ρ700>>ρ645; ρ675<ρ740 characterizes a hypereutrophic WB.

EFFECT: invention allows you to quickly obtain an objective assessment of the ecological status of a water body and classify them according to the state of the ecosystem.

3 dwg, 2 tbl, 1 ex