Leaf phenology of trees in the humid tropical mountains.

1996 - 1998年在马来西亚婆罗洲岛沙巴沙巴公园的基纳巴卢山进行了森林树木叶物候学及相关研究。叶片物候学包括叶片出现和落叶的时间、叶片的出芽模式、叶片的寿命、常绿性和落叶性。在初步的模拟中，我们首先预测了该山的所有树木都是常绿的，但叶片寿命要么短于1年，要么长于1年。在山区森林中进行的研究证实了这些预测是正确的。叶片寿命短于1年的常绿乔木有高海拔的红树（Rubus lineatus）、中等海拔的黄杨（Macaranga rostrata）和榕树（Ficus spp.），低海拔的黄杨（Macarangagigantea）和黄杨（m.h poleucain）。观察到同花顺和连续的叶片出苗模式。呈现同花顺格局的树种有新石、杜鹃花、Castanopsis、栎、eugeneasp等，呈现连续叶片的树种有Macarangaspp、Rubus spp等。一年内叶片出芽的时间在不同物种间存在差异。人们观察到，在3月左右的中度干旱期间，许多树木长出了叶子。

Researches on leaf phenology of forest trees and related subjects were carried Out On Mt.Kinabalu, Sabah Parks, Sabah, Borneo Island, Malaysia from 1996 to 1998. Leaf phenology involves timing of leaf appearance and leaf fall, leaf emergence pattern, leaf longevity and evergreenness and deciduousness. In a preliminary simulation, we first predicted that all trees on this mountain is evergreen but leaf longevity is either shorter or longer than 1 year. These predictions were revealed to be true by the researches carried out in the mountaneous forests. Evergreen trees which have shorter leaf longevity than 1 year were, for example, Rubus lineatus on high altitude, Macaranga rostrata and Ficus spp. on mid altitude and Macarangagigantea and M.hypoleucain low altitude. Flush and successive leaf emergence patterns were observed. Tree species which showed flush pattern were for example, Neolitsea spp, Rhododendron spp, Castanopsis spp, Quercus spp, Eugeneaspp, and tree species whish showed successive leafing were Macarangaspp, Rubus spp and others. Timing of leaf emergence within a year was various among species. Many trees were observed to emerge their leaves during a period of moderate drought around March.