Geology, geography and global energy

Scientific and Technical Journal

Use of remote sensing tools to study the long-term dynamics of forest ecosystems

2012. №4, pp. 150-155

Andreev Dmitriy. N. - Post-graduate student, Perm State National Research University, 15 Bukirev st., Perm, Russian Federation, 614990, egis@psu.ru

The article discusses the use of remote sensing instruments to study the long-term dynamics of forest ecosystems. Satellite imagery obtained and executed in 1975, 1990 and 2010 from one of these sensing devices, the Landsat (MSS TM) commercial satellite, has been employed to undertake a survey of the Chernyaevsky forest. This specially protected natural area is located in the southeastern section of the city of Perm, directly adjacent to residential areas. The forest imagery was analyzed and compared, so that reasons could be given for observed changes. The paper relates that the images were employed to calculate different map images, which identified areas undergoing significant changes and gave their characteristics. The critique indicates that the study of changes in natural systems and the extent of human impact on the environment are being used to enhance the dynamics of environmental mapping. This monitoring task is based on a creative method, comparing multi-temporal satellite images and maps, and determining the state of selected objects at different observation dates. Computer implementation of these environmental monitoring methods is primarily designed to ensure the correct spatial alignment of materials and the optimal extraction of dynamic information. Most significantly, these ’cards’ will enable the viewer to reflect not only on the structure of changes, but also on various related phenomena and processes.

Key words: remote sensing data,Chernyaevsky forest ecosystems,dynamics,photointerpretation,vegetation index,anthropogenesis development of deserts

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