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云南省是我国重点林区之一。全省有森林面积1.43亿亩,复盖率24.9%,林木总蓄积量为9.88亿立方米,居全国第四位。云南地形极为复杂,气候呈“立体”分布,具有多种多样的小气候:热带、亚热带、温带、寒温带的气候类型,森林可燃物类型繁多,森林火灾发生多而复杂。本文仅对森林火灾发生特点进行初步探讨。一、森林火灾发生的特点1、森林火灾集中发生在干季云南干季晴天多,日照充足,气温高,风大,空气干燥。又值农忙季节,生产、生活用火频繁,一旦不慎,最易引起森林火灾,因此,云南的森林火灾主要发生在干季。每年
Yunnan Province is one of the key forest areas in China. The province has 143 million mu of forest area, coverage rate of 24.9%, the total volume of forest reserves of 988 million cubic meters, ranking fourth in the country. The topography in Yunnan is extremely complicated. The climate is in a “three-dimensional” distribution with a variety of microclimates: the climate types of tropical, subtropical, temperate and frigid temperate regions, numerous types of combustible species in forests, and the complicated and complicated forest fires. This article only on the characteristics of forest fire preliminary study. First, the characteristics of the forest fire 1, the forest fire concentrated in the dry season in Yunnan dry season and more sunny sunshine, high temperature, windy, dry air. The value of farming season, production, life with frequent, once inadvertently, most likely to cause forest fires, therefore, Yunnan forest fire occurs mainly in the dry season. Per year