Capabilities of Up-to-Date Optical and Radar ERS Data for Information Support of the Forestry Activity The space component in structure of system of conducting state topographical monitoring Brivko E.A Creation of modern kinds of the digital information about district on the basis of the unified technologies conceptual directions Sofinov R Estimation of the possibilities of main forest species recognition on the base of Ikonos space images Zhirin V.M. Opportunities to reach target efficiency by space survey optical-electronic systems, built at orbits of different types Semunkina V.I. Radar imaging from space specifics and prospects Osheyko S. V.