The aim of the research was to study traditional and new non-traditional ways of reclamation implementation from the initial (1932) period to the modern one of its development. Poor knowledge of natural conditions, the lack of scientifically sound research methods and the construction of drainage systems for standard projects not adapted to local conditions often led to negative results (waterlogging and thermokarst field strains). In this regard, since the end of the sixties the field experiments in the region have been conducted to regulate the soil moisture regime by changing the depths of drainage canals and distances between them and moling. Since the late seventies the traditional and new agro-meliorative techniques have been tested to optimize the hydrothermal regime and improve the soil tolerance, including various types of plowing, rate of application of mineral additives into turf and irrigation. The article gives information to specialists who are engaged in the development of sensitive landscapes of the cryolithozone on positive and negative experience of the past and promising resource-saving methods for increasing the stability of the permafrost landscapes of the North under anthropogenic and global climatic effects. Experimental and theoretical knowledge accumulated during the period under consideration can serve as the basis for the development of innovative measures to increase the sustainability and productivity of sites with declining fertility of soils, fallow lands and reconstruction of drainage systems.
Key words: permafrost-reclamation conditions, stages of development of reclamation, problems, solutions, current state, prospects.
