Root Architecture and Root:Shoot Allocation of Shrubs and Saplings in Two Lowland Tropical Forests: Implications for Life‐Form Composition 1
Root Architecture and Root:Shoot Allocation of Shrubs and Saplings in Two Lowland Tropical Forests: Implications for Life‐Form Composition 1
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根结构和根：两个低地热带森林中灌木和树苗的芽分配：对生命形式组成的影响 1
DOI：
10.1111/j.1744-7429.1999.tb00120.x
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发表时间：
1999
期刊：
影响因子：
2.1
通讯作者：
Razali Yahya
中科院分区：
文献类型：
--
作者：
P. Becker;N. Sharbini;Razali Yahya
对文莱安杜劳低地龙脑香混交林中5种林冠树种和6种灌木和乔木树种的幼树根系进行了挖掘和测量。参考之前在巴拿马Gigante进行的研究，使用双因素固定因子ANOVA来比较生命形式和地点。生根深度和根表面积在土壤上部20厘米的比例没有显着不同的生活形式，因为一些树木/灌木在Andulau深根;所有研究的树苗都是深根。在Andulau的树苗和乔木/灌木的根：叶面积比显着高于Gigante。我们将这种强烈的差异归因于Andulau的土壤有效养分含量较低，降雨短缺不那么严重，比Gigante更有规律。关于生活型组成和大地块死亡率的现有数据与我们的提议一致，即浅根灌木和乔木比深根生活型更容易受到干旱的影响。我们建议，未来的研究用水分区，木材解剖，叶形态，并与邻近植物的协会将受益于明确检查它们之间的关系生根深度。
Entire root systems of saplings of five canopy species and of six shrub and treelet species growing in lowland mixed dipterocarp forest at Andulau, Brunei were excavated and measured. Referring to a prior study at Gigante, Panama, two‐way, fixed‐factor ANOVAs were used to compare life–forms and sites. Rooting depth and the proportion of root surface area in the upper 20 cm of soil did not differ significantly between life‐forms because some treelets/shrubs at Andulau were deep‐rooted; all saplings studied were deep‐rooted. The root:leaf area ratios of both saplings and treelets/ shrubs at Andulau were significantly higher than those at Gigante. We attribute this strong difference to the lower soil content of available nutrients at Andulau where rainfall shortage is less severe and regular than at Gigante. Available data on life‐form composition and mortality rates in large plots are consistent with our proposal that shallow‐rooted shrubs and treelets are more vulnerable to drought than deep‐rooted life‐forms. We suggest that future studies of water use partitioning, wood anatomy, leaf morphology, and associations with neighboring plants would benefit from an explicit examination of their relation to rooting depth.
开花物候与环境变化：温带和热带雨林的比较。
DOI：
--
发表时间：
2015
期刊：
影响因子：
--
作者：
Yeoh;S.H.;Satake;A.;Numata;S.;Ichie;T.;Leong;L.S.;Basherudin;N.;Muhammad;N.;Chen;Y.-Y.;Kosugi;Y.;Tani;M.;Tani;N.
通讯作者：
N.