Genetic resources of halophytes and their utilization for sustainable development of russian rangelands
作者单位：All-Russian Institute of Hydraulic Engineering and Land ReclamationBolshaya Academicheskaya St.44141550MoscowRussia
会议名称：《ⅩⅪ International Grassland Congress and the Ⅷ International Rangeland Congress》
会议日期：1000年
学科分类：090503[农学-草业科学] 0909[农学-草学] 0905[农学-畜牧学] 09[农学] 0903[农学-农业资源与环境]
基 金：support of the Federal Agency for Science & Innovations(MD-569.2007.04) Russian Foundation for Basic Research(#07-05-13596)
关 键 词：halophytes ecotypes varieties desert fodder plants
摘 要：正Introduction It was found that arid regions of Russia occupying more than 100 million ha include dry-steppe（74.5 mln ha）, semidesert（28.7 mln ha）,and desert（5.6 mln ha）.Due to unwise management of natural pastures and irrigated lands many have become degraded:productivity of natural pasture ecosystems has decreased 1.5 to 2-fold,810;and valuable forage varieties have *** year production of irrigated lands is reduced due to salinity problems,and currently 30%of the irrigated lands are not used for agriculture due to heavy salinization and low value.