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我国四川西部、云南西北部和西藏东南部自然资源丰富,是我国独具一格的自然地理区。由于该区一些地方固体降水量充沛,给雪崩、风吹雪和异常大雪三种雪害提供了充足的物质基础,成为一种常见的自然灾害,对国民经济和国防建设以及农牧业生产均造成了严重危害。随着西南地区现代化建设事业的发展和自然资源的开发、利用,对该区雪害的防治研究已成为一项急待解决的任务之一。为此,我们继1964,1965两年在波密、易贡考察后。又于1981年开始对本区的积雪和雪害进行了考察研究。现将结果报道如下。
China is rich in natural resources in the western part of Sichuan, northwestern Yunnan and southeastern Tibet, and is a unique natural geographical region in our country. Due to the abundant precipitation in some parts of the region, sufficient physical basis has been provided for the three types of snow damage, such as avalanches, winds and snowfalls, and abnormal snowfall. This has become a common natural disaster that has caused both the national economy and national defense construction and the production of agriculture and animal husbandry Serious harm. With the development of the cause of modernization in Southwest China and the exploitation and utilization of natural resources, the research on the prevention and control of snow damage in this area has become an urgent task to be solved. To this end, following our visit in Bomi and Yi Gong in 1964 and 1965, two years later. In 1981, the area began to study snow cover and snow damage. The results are reported below.