%A S.V. Venevsky %T A Set of Biogeochemical Model Approaches for Integrated Modeling of Climate Change Impacts. Biospheric Carbon and Nitrogen Cycles %X The biospheric research component of the Forestry and Climate Change Project has had as one of its objectives to develop a concept for a coupled carbon, nitrogen and water model which can be part of integrated models for analyses of climate change. This Working Paper describes a set of such model concepts. These models are now being tested and modified for implementation for regional analyses in the assessment phase of Siberian Forest Study. %C IIASA, Laxenburg, Austria %D 1994 %I WP-94-062 %L iiasa4149