Comparative analysis of meteorological elements between Hainan’s Diaoluoshan and Jianfengling tropical forest region
QIU Zhi-jun1, QIU Jian-rui1, ZHOU Guang-yi1, LIU Hai-wei2, LI Gui-mei2
1. The Research Institute of Tropical Forestry, CAF, Guangzhou, 510520, China; 2. Diaoluoshan Forestry Bureau of Hainan Province, Lingshui, 572200 China
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.