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本文依据野外观测和室内模拟实验初步资料分析 ,冻结滞水是冬季冻结作用在包气带内形成的季节性固态地下水 ,具有独特的形成机制和倒置富水性及独立的水盐动态特征 ,对生态环境具有双重效应。冻结滞水比冻结前水量一般增加 8%～ 2 5 % ,最高增加 39.5 1% ,是天然和人工植物越冬、春季繁衍的水分代谢均衡不可缺少的 ,甚至是唯一水资源 ,是保持生态平衡的主导因子。当水量达到过饱和状态时 ,易形成冻胀、热融、滑塌、沉陷、盐渍化、沼泽化等不良地质现象 ,造成生态环境恶化 ;在水量 <5 %时造成天然和人工植被衰亡 ,加速荒漠化。这一课题属于跨学部多学科交叉应用基础研究 ,将为可持续发展农林牧业工程、环境水文地质、工程地质、荒漠化防治等提供科学的理论依据和技术方法 ,开拓国际前沿研究领域。
Based on the preliminary data analysis of the field observation and laboratory simulation experiments, the frozen stagnant water is a seasonal solid groundwater formed in the aeration zone in winter with a unique formation mechanism and inverted water-rich and independent characteristics of water and salt. Environment has a double effect. Frozen stagnant water generally increases by 8% ~ 25% and the highest increase of 39.5% before freezing. It is an essential and even the only water resource for natural and artificial plants to wintering. The dominant factor. When the amount of water reached saturation, it is easy to form unfavorable geologic phenomena such as frost heaving, hot melt, slump, subsidence, salinization and swamping, resulting in the deterioration of the ecological environment. When the amount of water is less than 5%, the natural and artificial vegetation are decayed, Accelerate desertification. This subject belongs to the interdisciplinary multidisciplinary application of cross-disciplinary basic research and will provide scientific theoretical basis and technical methods for sustainable development of agriculture, forestry, animal husbandry, environmental hydrogeology, engineering geology and desertification prevention and control, and to explore international frontier research fields.