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当前位置: 首页 > 文章 > 海南岛尖峰岭热带林生态系统研究(续)——Ⅲ.热带林水热状况 Ⅳ.热带林物质循环 林业科学研究 1988 (4) 359-366
Position: Home > Articles > THE SUMMARY REPORT FOR STUDIES ON THE TROPICAL FOREST ECOSYSTEM IN JIANFENGLING REGION, HAINAN ISLAND Ⅲ. Water and Heat Regime, Ⅳ. Material Circulation Forest Research 1988 (4) 359-366

海南岛尖峰岭热带林生态系统研究(续)——Ⅲ.热带林水热状况 Ⅳ.热带林物质循环

作  者：
中国林业科学研究院热带林业研究所、林业研究所联合课题组
关键词：
海南岛尖峰岭;热带林;水热状况;物质循环
摘  要：
热带林的反射率平均占辐射量的17.4％,向大气的有效长波辐射约占13.7％,净辐射约占70％。蒸散值约占年降水量的36—57％,平均为43.6％。水量平衡各分量、土壤CO_2释放量、森林小气候特征都与干湿季节的变化有明显的关系。山地雨林的年凋落物量平均为7.7±1.2t/ha,半落叶季雨林为9.7±2.3t/ha。物质循环的研究表明,热带林的有机物归还量大、分解快,在较少人为干扰下元素的输出较少,多用于系统内的循环利用。
译  名：
THE SUMMARY REPORT FOR STUDIES ON THE TROPICAL FOREST ECOSYSTEM IN JIANFENGLING REGION, HAINAN ISLAND Ⅲ. Water and Heat Regime, Ⅳ. Material Circulation
作  者：
The Research Group(The Research Institute of Tropical Forestry and, the Research Institute of Forestry CAF)
关键词：
Jianfengling, Hainan Island; tropical forest; water and heat regime; material circulation
摘  要：
The average reflectivity of tropical forest in Jianfengling, Hainan Island, is about 17.4% of the radiation, the effective longwave reflected radiation from tree crowns is about 13.7%, and the net radiation is about 70%. The evapotranspiration is about 36-57% of annual precipitation with an average value of 43.6%. The components of water balance, CO2 released from soil, and the property of forest microclimate obviously change with dry and wet seasons. The annual average of total litters of mountain rain forest and semi-deciduous monsoon forest are 7.7±1.2 t/ha and 9.7±2.3t/ha respectively. The material circulation study shows that the tropical forests have large return and higher decomposition of organic matters, less output of nutrient from ecosystem for maintaining the recycle utilization inside ecosystem undar the condition of less disturbance.

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