赤水林区气候特征

Climatic survey in Chishui forest region

经短期驻点观测和资料订正得到：该区年日照时数９４８５～１２９２５ｈ，年日照百分率为１９％～２９％；太阳辐射年总量在３７８４～３８６２ＭＪ／ｍ２之间，为贵州乃至全国最低值区之一；年平均气温为１１３～１８１℃；≥１０℃积温日数在１８７～２８７９ｄ；≥１０℃积温在３４６２～５８８８３℃－ｄ之间；年降水量为８００～１７００ｍｍ；其降水量趋势为：自西北部向东南部减少，自中部山梁向东北和西南减少。垂直气候带为近似南亚热带、中亚热带和北亚热带湿润季风气候，其分界在６００ｍ以下、６００～１２００ｍ、１２００ｍ以上。

Chishui forest region located in the north part of Guizhou province, 28°17′-28°46′N,105°15′-105°36′E,is a national bank of natural bioloical species genes and famous scenic spot for tourism and go sightseeing. After Short time observation and datum reduction, the results are as follows: Annual sunshine duration is between 948.5-1 292.5 h annual percentage of sunsline is between 19%-29%,annual amount of solar radiation is between 3 784-3 862 MJ/m 2,this region is one of the lowest value areas in Guizhou and China. Annual mean temperature is between 11.3-18 1 ℃.≥10 ℃ continued days is between 187-287.9 d,≥10 ℃ accumulated temperature is between 3 462-5 888. 3 ℃-d. Annual precipitation is between 800-1 700 mm, the precipitation tendency is decrease from northwestern to southeastern, from middle ridge to northeastern and southwestern. Three vertical climate belts are divided, such as approximate south subtropical zone, mid-subtropical zone and north subtropical zone damp monsoon climate, the boundaries are under 600 m, between 600-1 200 m, upper 1 200 m.