论文部分内容阅读
山川的峻美,少不了冰的功劳。正是冰川及其融水的作用,让群山有了角、脊、斗、谷的千姿百态。人类的生存,离不开水资源,正是水这一生命之源,支撑了众多生命。水资源,尤其是淡水资源,对地球上的生命而言,其重要性不言而喻。而淡水中绝大部分为极地冰雪、冰川和地下水,适宜人类享用的仅为0.01%。地球淡水资源的85%以冰雪的形式储存在冰川里;14%以地下水的形式埋藏在地下;0.3%渗含在土壤中;0.05%以水汽的形式飘逸在空气里。此外,虽然湖
The beautiful mountains and rivers, ultimately, the credit of ice. It is the role of the glacier and its melting water, so that the mountains have angle, ridge, bucket, valley in different poses and. The survival of mankind is inseparable from the water resources. It is the source of water that supports many lives. The importance of water resources, especially freshwater resources, for life on Earth is self-evident. The vast majority of freshwater ice and snow, glaciers and groundwater, suitable for human consumption is only 0.01%. 85% of the Earth’s freshwater resources are stored in glaciers in the form of ice and snow; 14% are buried underground in the form of groundwater; 0.3% are infiltrated in the soil; and 0.05% are vaporized in the air as water vapor. In addition, although the lake