ВЛИЯНИЕ ДЛИТЕЛЬНОГО ПОСТМЕЛИОРАТИВНОГО ПЕРИОДА НА ФИЗИЧЕСКИЕ И ВОДНО-ФИЗИЧЕСКИЕ СВОЙСТВА МЕЛИОРИРУЕМЫХ ЛУГОВЫХ СОЛОНЧАКОВ САЗОВОЙ ПОЛОСЫ ПРЕДГОРНОЙ РАВНИНЫ ИЛИЙСКОГО АЛАТАУ

Abstract

The resalinization of irrigable earth brings an enormous damage to agriculture. Principal reason of this harmful phenomenon is an absence of engineering collector-drainage network in the conditions of weak natural outflow of subsoil waters. Researches were conducted on the before reclamated pratal saline lands in the natural conditions and under the lucerne (in the submountain plains of Ili Alatau, in the farm of Teskensu, of the Almaty region). Were investigated such parameters as volume weight, unit weight, porosity of soils, maximal hygro-scopicity, wilting moisture.