干旱区生态环境知识资源中心

Taking into consideration oncoming global change, basic researches, concerning prospects of the use the modern methods of modeling in such important aspect as reactions of living organism on miscellaneous level hierarchy on risks, appearing as a result these change become exceedingly actual. Using different methods of modeling, generalized experimental material, we managed consider in detail some changes of the biological processes on different hierarchy levels (cellular, organism and population) in response to risks, appearing in ecosystems. In particular, processes of the shaping new desert in context of global desertification were modeled; possible mechanisms of speciation of living organism in radiation-chemical stress and mutation are described. The enzymes degradation models were worked out. On base of these experimental results the phenomena of negative geotropism of root system at influence of specifically dangerous xenobiotics (in particular, chlororganic) and thick water insoluble polymeric covering is considered. Besides, attempt of modeling of complex interaction in ecosystems in condition ecological crisis is realized. In spite of different levels of models, they, on our point of view, can illustrate the interaction of nanoworld with sharply changing condition of the environment and give the approaches to creation new technology. Consideration of these models is important and with standpoint of the estimation of risk and that difficulties, which faces the mankind at period of the oncoming global change of ecosystems under influence of different "on its nature" calls.