SCIENTIFICALLY BASED OPERATING MODE OF THE VERTICAL DRAINAGE IN THE CONDITIONS OF COTTON SEEDING REGION OF THE SOUTHERN KAZAKHSTAN

Proceeding from the results of our supervision over work of vertical drainage in the conditions of old irrigated zone of the cotton seeding region of Kazakhstan, it is possible to make the following offers, with its help it is necessary to support semi-automorphic and semi-hydromorphic meliorative modes depending on hydrogeological conditions. For this purpose it is necessary to observe such rhythm of work of wells which, judging by the provided data, is capable to reduce level of ground waters in the first case to depth of 3,5 m and in the second - to 2,7 m throughout vegetation.