Leaf turn-over rate of forest trees in tropical mountain forests

热带山地森林林木叶周转率

• 批准号: 11691190
• 负责人: KIKUZAWA Kihachiro
• 金额: $ 8.79万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11691190/
• 关键词: tropical mountain forest; leaf turn-over rate; leaf emergence; evergreenness; deciduousness; 熱帯山地林; キナバル山; 光合成速度; 開葉時期; 窒素利用効率; ボルネオ島; 開葉フェノロジー; エルニーニョ; 乾燥; 開花フェノロジー; 結実フェノロジー; 葉の寿命; 鳥散布

Four issues of problems were investigated concerning leaf phenological events of forest trees namely. Emergence pattern, timing of leaf emergence, leaf longevity and leaf habit (deciduousness and evergreenness) in tropical mountain forests on Mt. Kinabalu, Borneo island Malaysia. All shoots studied in the present study showed evergreen habit at least from 1994 to 1999. Leaf order against leaf position showed two types of leaf-emergence patterns. Actual observation throughout one year also reveals that there are two types of leaf emergence patterns in each of forest types on the tropical montane forests. Timing of leaf emergence was also investigated. Since temperature is constant throughout a year, rainfall and nutrient flush were considered to be important as a cue and critical resource for the new leaf emergence. The effect of nutrient supply on the initiation of new leaf emergence was tested by an experiment where nutrogen and phosphorus were artificially supplied. Results suggested the significance of nutrient supply on new leaf emergence at least in some forests. Leaf longevity ranged from shorter than one year to longer than 5 years. In any of the forest zones studied, there were variations in leaf longevities. Flowering phenology and fruiting phenology of tree species were also investigated in relation to fruit dispersal by birds.

对林木叶物候事件的四个问题进行了研究。山热带山地森林的出叶格局、出叶时间、叶寿命和叶习性（落叶性和常绿性）。马来西亚婆罗洲岛的京那巴鲁。在本研究中所研究的所有枝条至少在1994年至1999年表现出万年青习性。叶序对叶位表现出两种类型的出叶模式。全年的实际观测还表明，在热带山地森林的每一个森林类型中，都有两种类型的叶片出现模式。叶出现的时间也进行了研究。由于全年气温恒定，降雨和养分冲刷被认为是重要的线索和新叶出现的关键资源。通过人工供应氮、磷的试验，研究了营养供应对新叶萌发的影响。结果表明，至少在某些森林中，营养供应对新叶的出现具有重要意义。叶片寿命从短于1年到长于5年不等。在任何森林地带的研究，有变化的叶longevities。研究了树种开花和结果的物候与鸟类传播果实的关系。

项目成果

Rimi, R., Sundaling, D.: "Checklist of trees along the trails on the isslands of Tunku Abdul Rahman Park, Sabah, Malaysia"Sabah Parks Nature Journal. 3. 79-98 (2000)

Rimi, R., Sundaling, D.：“马来西亚沙巴东姑阿都拉曼公园岛屿小径沿线树木清单”沙巴公园自然杂志。

Kudo, G., Kitayama, K.: "Drought effects on the summit vegetation on Mount Kinabalu by an El Nino event in 1998"Sabah Parks Nature Journal. 2. 101-110 (1999)

Kudo, G., Kitayama, K.：“1998 年厄尔尼诺事件对基纳巴卢山山顶植被的干旱影响”沙巴公园自然杂志。

Kitayama,K.& Aiba,S.: "Control of organic carbon density invegetation and soil of tropical rain forest eco system son Mount Kinabalu."Sabah Parks Nature Study 3. (in press). (2001)

北山，K.

Kikuzawa K.& Ackerly D.: "Significance of leaf longevity in plants"Plant Species Biology. 14. 39-46 (1999)

菊泽 K.

Kimura K, Yumoto T, Kikuzawa K.: "Fruiting phenology of fleshy-fruited plants and seasonal dynamics of frugivorous birds in four vegetation zones on Mt.Kinabalu,Borneo"Journal of Tropical Ecology. 17. 833-858 (2001)

Kimura K、Yumoto T、Kikuzawa K.：“婆罗洲基纳巴卢山四个植被区肉质植物的结果物候和食果鸟类的季节动态”热带生态学杂志。