海南吊罗山与尖峰岭热带林区气象要素对比研究*

统计分析了海南吊罗山与尖峰岭地面气象站2001年7月-2003年7月的资料,对比研究了这两大林区气象要素的特点及其原因。结果表明:两大林区的共同点是年降雨量多,蒸发量大,全年旱季雨季分明,降雨具有季风型和台风型的特点;由于受山体位置与山系走向的影响,吊罗山和尖峰岭两大热带林区的气温及降雨的差异较大。年均气温尖峰岭热带林区比吊罗山偏高0.4℃,最热月和最冷月分别高0.5℃和2.7℃;年降雨量尖峰岭林区比吊罗山林区少500 mm左右,而且尖峰岭林区有效降雨少,早期较长。气象条件的不同导致了两地在森林植被分布上也有较大的差别。

Comparative analysis of meteorological elements between Hainan's Diaoluoshan and Jianfengling tropical forest region

Based on the analysis of Diaoluoshan and Jianfengling ground Meteorological station's records between July of 2001 to July of 2003, the characteristic of Meteorological Elements of these two forest regions was studied. The results showed that two regions had a common characteristic:abundant precipitation and great evaporation. There were distinct dry season and rainy season in these two regions, and their precipitation had a close relationship to typhoon and Monsoon. Because of the influence of the mountain's position and tendency, the difference of air temperature and precipitation of these two regions is relatively high. The yearly mean air temperature of Jianfengling was 0.4℃ higher than that of Diaoluoshan, and the highest and the lowest monthly air temperature of Jianfengling were 0.5℃ and 2.7℃ higher than that of Diaoluo, respectively. The yearly precipitation of Jianfengling was 500 mm less than that of Diaoluoshan. And there was less useful precipitation and longer dry season in Jianfengling. As a result of the difference of meteorological conditions, there were greater differences of forest vegetation contribution between two regions.