RU2012109140A - METHOD FOR DETERMINING THE ECOLOGICAL STATE OF RESERVOIRS - Google Patents

Abstract

A method for determining the ecological state of water bodies by which hydrobiological indicators are measured, characterized in that for assessing the ecological state of the water body at the same time as hydrobiological indicators - Pantle and Bucca saprobity index in the Sweet modification, hydrochemical indicators are measured - hydrogen indicator, chemical oxygen consumption, dissolved oxygen concentration and electrical conductivity, calculate the composite indicator by the formulas: Q = 0.14 · q + 0.29 · q + 0.29 · q + 0.07 · q + 0.21 · q, where q is the converted value hydrogen indicator: where w is the measured value of the hydrogen indicator; q is the converted value of the chemical oxygen consumption: where w is the measured value of the chemical oxygen consumption; q is the converted value of the dissolved oxygen concentration: where w is the measured value of the dissolved oxygen; q is the converted conductivity value: where w is the measured value of electrical conductivity; q is the converted value of the Pantle and Bukk saprobity index in the Sweetheart modification: where W is the calculated value of the saprobic index STI on Pantle and Bukka in Sladechek modification, then compares the value of the composite index of the data table and the results are judged on the ecological status of the water body.

Claims (1)

A method for determining the ecological state of water bodies by which hydrobiological indicators are measured, characterized in that for assessing the ecological state of the water body at the same time as hydrobiological indicators - Pantle and Bucca saprobity index in the Sweet modification, hydrochemical indicators are measured - hydrogen indicator, chemical oxygen consumption, dissolved oxygen concentration and electrical conductivity, calculate the composite indicator by the formulas: Q = 0.14 · q ₁ + 0.29 · q ₂ + 0.29 · q ₃ + 0.07 · q ₄ + 0.21 · q ₅ , where q ₁ is the converted value of the hydrogen index: $$e\mathrm{from}l\mathrm{and}{\text{w}}_{\text{one}}<\mathrm{7,}\text{t}\mathrm{about}{\text{q}}_{\text{one}}=\{\begin{array}{l}0PR\mathrm{and}{\text{w}}_{\text{one}}\le \mathrm{four};\\ (6.9-w_{\mathrm{one}})/\mathrm{2.9,}PR\mathrm{and}\text{four}<{\text{w}}_{\text{one}}\le 6.9;\\ \mathrm{one,}PR\mathrm{and}{\text{w}}_{\text{one}}>6.9;\end{array}$$

$$e\mathrm{from}l\mathrm{and}{\text{w}}_{\text{one}}>\text{7}\text{, t}\mathrm{about}{\text{q}}_{\text{one}}=\{\begin{array}{l}\text{0}\text{,}PR\mathrm{and}{\text{w}}_{\text{one}}\le \text{four;}\\ {\text{(w}}_{\text{one}}\text{-7}\text{, 1) / 1}\text{,9}\text{,}PR\mathrm{and}\text{7}\text{,one}<{\text{w}}_{\text{one}}\le \text{9;}\\ \text{one}\text{,}PR\mathrm{and}{\text{w}}_{\text{one}}>\text{9;}\end{array}$$

where w ₁ is the measured value of the hydrogen index; q ₂ is the converted value of the chemical oxygen consumption: $$q_2=\{\begin{array}{l}0PR\mathrm{and}{\text{w}}_{\text{2}}\le \mathrm{one};\\ (w_2-\mathrm{one})/\mathrm{fourteen,}PR\mathrm{and}\text{one}<{\text{w}}_{\text{2}}\le \mathrm{fifteen};\\ \mathrm{one,}PR\mathrm{and}{\text{w}}_{\text{2}}>\mathrm{fifteen};\end{array}$$

where w ₂ is the measured value of the chemical consumption of oxygen; q ₃ - the converted value of the concentration of dissolved oxygen: $$e\mathrm{from}l\mathrm{and}<<\text{summer}>>\text{, t}\mathrm{about}{\text{q}}_{\text{3}}=\{\begin{array}{l}\mathrm{one,}PR\mathrm{and}{\text{w}}_{\text{3}}\le \mathrm{four};\\ (9-w_3)/\mathrm{8,}PR\mathrm{and}\text{one}<{\text{w}}_{\text{3}}\le 9;\\ 0PR\mathrm{and}{\text{w}}_{\text{3}}>\text{9;}\end{array}$$

$$e\mathrm{from}l\mathrm{and}<<\text{winter}>>\text{, t}\mathrm{about}{\text{q}}_{\text{3}}=\{\begin{array}{l}\mathrm{one,}PR\mathrm{and}{\text{w}}_{\text{3}}\le \mathrm{one};\\ (\mathrm{fourteen}-w_3)/\mathrm{13,}PR\mathrm{and}\text{one}<{\text{w}}_{\text{3}}\le \mathrm{fourteen};\\ 0PR\mathrm{and}{\text{w}}_{\text{3}}>\text{fourteen;}\end{array}$$

where w ₃ is the measured value of dissolved oxygen; q ₄ - converted value of conductivity: $$e\mathrm{from}l\mathrm{and}<<\text{running water}>>\text{, t}\mathrm{about}{\text{q}}_{\text{four}}=\{\begin{array}{l}0PR\mathrm{and}{\text{w}}_{\text{four}}\le 400;\\ (w_{\mathrm{four}}-400)/\mathrm{1200,}PR\mathrm{and}\text{400}<{\text{w}}_{\text{four}}\le 1600;\\ \mathrm{one,}PR\mathrm{and}{\text{w}}_{\text{four}}>1600;\end{array}$$

$$e\mathrm{from}l\mathrm{and}<<\text{stagnant body of water}>>\text{, t}\mathrm{about}{\text{q}}_{\text{four}}=\{\begin{array}{l}0PR\mathrm{and}{\text{w}}_{\text{four}}>\text{1600;}\\ {\text{(w}}_{\text{four}}\text{-150) / 850}\text{,}PR\mathrm{and}\text{150}<{\text{w}}_{\text{four}}\le 1000;\\ \mathrm{one,}PR\mathrm{and}{\text{w}}_{\text{four}}>1000;\end{array}$$

where w ₄ is the measured value of electrical conductivity; q ₅ - the converted value of the saprobity index according to Pantle and Bucco in the modification of Sweeties: $$q_5=\{\begin{array}{l}0PR\mathrm{and}{w}_{\text{5}}\le \text{one;}\\ {\text{(w}}_{\text{5}}\text{-1) / 3}\text{,}PR\mathrm{and}\text{one}<{\text{w}}_{\text{5}}\le \mathrm{fifteen};\\ \mathrm{one,}PR\mathrm{and}{\text{w}}_{\text{5}}>\mathrm{four};\end{array}$$

where W ₅ is the calculated value of the Pantle and Bucca saprobity index in the modification of Sweeties, further, the obtained value of the composite indicator is compared with the data in the table, and the environmental status of the reservoir is judged by the results.