odessa state environmental university

ODESSA STATE ENVIRONMENTAL UNIVERSITY

Modeling and assessment of pollution radiocesium culture winter wheat in

the Zhytomyr region

Работа выполнена магистром ОГЭкУЖигайло Т.С

Руководитель: доц., к. геогр. н. Вольвач О.В.

OBJECTIVES:

1.Estimate the density of contamination of agricultural land,

Zhytomyr region.

2. Modeled the radiocesium contamination of winter wheat yield.

3. Construct maps of the contamination of agricultural land and contamination of grain of winter wheat in the Zhitomir region.

1986

Ки/км2

CONTAMINATION CESIUM-137 ZHYTOMIR REGION

2006

Unit of background information

Unitof radiation,

water and heatregimes

Unit of mineral power unit accumulation

of radionuclides

Unitof breathing

Reproductiveorgans

Unit

of photosynthesis

Unit of growth and distribution of assimilates and

radionuclides

Leaves Stems Roots

Mass of

crop The content of

radionuclides

The quantity, quality and environmental cleanliness of

crop

Useful organic

substances

DYNAMICS MODEL OF WINTER WHET PRODUCTIVITY

UNIT ACCUMULATION OF RADIONUCLIDES

MODELING DYNAMICS OF

BIOMASS

MODELINGLEAVES AREA

MODELING DYNAMICS OF

RADIONUCLIDES

ACCUMULATION

AGROCHEMICALACTIVITIES TO

REDUCE

POLLUTION

ACCUMULATION OF RADIONUCLIDES IN THE TOTAL MASS

OF PLANTS

RADIONUCLIDE ACCUMULATION

IN ECONOMICALLY USEFUL PART

THE RADIONUCLIDE CONTENT IN THE PROCESSED PRODUCTS

MODELING DYNAMICS OF BIOMASS

The basic formulas model of the formation radionuclide activity in the system

soil - plant - product

Ci(t)= Ci,l (t) + Ci,r(t) (1)

]t)(exp[YA

)t(C rwi

il,i (2)

]t)(exp[LA

)t(C rfss

s

Axim = (FpH Fgum FKO )0,333

(3)Ci,r(t) = [TFі Cs(t)]Axim (1-Fud /Fizv)

(4)

(5)

Distribution of assimilates and radionuclides:

0

0,2

0,4

0,6

0,8

1

1 2 3 4 5 6 7 8 9 10 11Корни Колосья Листья Стебли decades

Ck(t) = Ck0(t-tрk)Pk

(6)

CONTAMINATION OF WINTER WHEAT GRAIN INTHE TERRITORY OF ZHYTOMIR REGION CESIUM-137

THANK YOU

FOR

ATTENTION