Meteorological Disasters and Forest Fire in Chinese Livestock.

White disaster (snow damage occurs from October to April next month, snow cover depth > 10 cm, snow cover pasture equivalent to 40% of the average height of pasture).

Black disaster (average daily temperature < 10 C - 0 C, continuous no snow days more than 40 days; November - April next year)

Blizzard (average daily temperature < 5 C, 24-hour cooling < 6 C, daily precipitation < 5 mm, instantaneous wind speed < 8 m/s)

Forest fire zoning

Northeast China (March-May and September-October; man-made fire is dominant, lightning fire is secondary)

North China (October-May next year, especially March; man-made fire)

Mengxin District (October-May next year, especially March; man-made fire)

Central China (January-March, October-November; man-made fire)

South China (January-March, especially March; man-made fire)

Yunnan (January-April, especially January-March; man-made fire)

Qinghai-Tibet Region (11-March next year; wilderness fire)