SURFACE OF GROUND SETTLEMENT MARK DEFINITION TECHNIQUE FOR SUBSOIL WATERS REGULATION SITE LEVELS ON DRYING-AND-MOISTENING SYSTEMS WITH A COMPLEX RELIEF

Abstract

The problem of subsoil waters levels position optimization at drying-and-moistening meliorativesystems water regime regulation sites is considered for not leveled relief. The technique for the surface of ground settlement mark definition with respect to which subsoil waters levels maintenance in optimum limits reduces to a minimum an agricultural crops production shortage on the raised and lowered elements of a relief is developed. Character of a relief is taken into considered by means of the mark of a surface average weighted by the area deviation of the site from minimal. The simple approximated way of a settlement mark determining for a surface of ground is presented. Numerical experiment has shown, that surface of ground settlement mark depends on the character of a relief, does not depend on cultures grown up and can be accepted approximately identical for various cultures.