【摘要】 <正> 一、问题的提出酒泉地区位于甘肃省河西走廊西缘,地处东径92°21′～99°30′、北纬37°55′～41°30′,辖五县两市,总土地面积28,378.76万亩,其中耕地面积212.09万亩,草场面积5,918.40万亩,是甘肃省重要的农牧业基地之一。由于本区气候极端干旱,降水(不足100毫米)稀少,蒸发(超过2000毫米)强烈,闭塞的内陆河流,以及含盐的地下水和成土母质,为盐渍土的发育提供了充分的内在条件,加之各种人为因素的干扰和影响,更是加速了盐渍土发育形成的过更多还原

【Abstract】 Jiuquan Prefecture is situated in the western pari of GansuProvince witha large area of salinelands which have ledup to serious harms and threats to the development of agriculture and livestock in this regions. This paper has investigated and discussed the characteristics, harmfulness and the use of salinelands in order to provide the basic imformations for improvement and utilization of these salineland resources.更多还原