Leaf Flushing Phenology of Tropical Montane Rain Forests: Relationship to Soil Moisture and Nutrients
Leaf Flushing Phenology of Tropical Montane Rain Forests: Relationship to Soil Moisture and Nutrients
复制标题
热带山地雨林的落叶物候学：与土壤水分和养分的关系
DOI：
10.3759/tropics.12.261
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发表时间：
2003
期刊：
影响因子：
0.7
通讯作者：
K. Kitayama
中科院分区：
文献类型：
--
作者：
Naofumi Nomura;K. Kikuzawa;K. Kitayama
光和水只在低纬热带地区的叶片物候研究中讨论过，尽管土壤养分也是潜在的贡献因素。我们在婆罗洲基纳巴卢山热带山地森林中调查了这些环境因素与叶物候的关系。在1998年厄尔尼诺干旱期间，对三种不同植被的山地森林进行了比较，以区分每个环境因素的影响。结果表明，土壤养分脉冲释放与叶片冲洗的关系在水分充沛的森林中表现出来，而水分胁迫抑制了所有植被的叶片冲洗。然而，光的贡献还无法确定。这项研究首次表明土壤养分对热带地区叶片物候的贡献。
Light and water have only been discussed in the leaf phenology studies of low latitude tropics, though soil nutrients were also included as potential contributive factors. We investigated the relationship between these environmental factors and leaf phenology in the tropical montane forests of Mount Kinabalu, Borneo. Three montane forests of different vegetation were compared during the 1998 El Nino drought in order to differentiate the effect of each environmental factor. As a result, the relationship between soil pulsed nutrient release and leaf flushing was denoted in the forests with an affluent water supply, while water stress suppressed leaf flushing in all vegetation. However, the contribution of light could not be determined. This study is the first to indicate the contribution of soil nutrients to leaf phenology in the tropics.