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DEVELOPMENT PROSPECTS OF MATHEMATICAL SIMULATION OF HEAT MASS TRANSFER PROCESSES IN THE SOIL LAYERS AS A TOOL OF REMOTE SENSING OF FOREST FIRE IMPACT

Journal: Pozharovzryvobezopastnost/Fire and Explosion Safety (Vol.23, No. 7)

Publication Date:

Authors : ; ;

Page : 36-45

Keywords : mathematical simulation; heat and mass transfer; forest fire; monitoring; soil.;

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Abstract

The fire from ecological positions is spontaneous, uncontrollable spreading of fire which harms to all surrounding (plants, animal, microorganisms etc.). To problems of studying of forest fires every year it is given more and more attention as they cause a huge damage to environment and economy. Till now after forest fires basically soil scientists were engaged in research of a condition of soils. For an estimation of a condition of soils carry out the physical and chemical analysis of tests of the soil taken after a fire. Also for research of influence of forest fire on environment natural experiment is made. The fire of different intensity by a controllable burning out is for this purpose modeled. Such kinds of research demands considerable expenses of means and highly skilled experts in case of modeling of a real fire. The methodology of prognostic modeling of forest fire danger is earlier developed. The obtained results can be used as entrance data for systems of an estimation, monitoring and forecasting of ecological consequences of forest fires. The work purpose is creation of the new generalised concept of an estimation of influence of damaging factors of forest fires on environment, in particular on soil microbic communities as tool of remote research of a condition of pyrogenic soils. The analysis of existing mathematical models of heat transfer process in soils is carried out at influence of forest fires. It is established, that within the limits of these models all spectrum of significant factors is not described yet at influence of forest fires on soils. Development before the developed models will allow to use them in ecological monitoring systems. As there is a prospect of creation of uniform system of the monitoring aimed at a prediction and neutralisation of harmful influences on soils and microorganisms at forest fires.

Last modified: 2019-10-24 23:15:25