SGER:Forest Damage and Recovery from Hurricane Iniki, Kauai, Hawaii
SGER:Forest Damage and Recovery from Hurricane Iniki, Kauai, Hawaii
批准号:
9304701
负责人:
James Fownes
金额:
$4.98万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1993
资助国家:
美国
项目状态:
已结题
起止时间:
1993-03-01 至 1994-08-31
中文摘要
飓风伊尼基对夏威夷本土森林的影响变化很大。初步观察表明,本地树种比引进树种受到的破坏要小。破坏的空间格局似乎与土壤湿度有关,土壤湿度是限制树木根系深度的主要因素。森林的生产力应该受到落叶、细根死亡和落叶和羽翼积累养分的影响。在没有受到飓风严重破坏的地区,可能会发现一种新的机制,即次灾难性风暴有助于维持当地Metrosideros森林独特的均匀年龄种群结构。本研究将检验控制这些明显模式的机制假设,并将测量(1)损害的空间格局,(2)大小类别和物种的损害,(3)叶面积和生长速度的变化,(4)细根生物量的变化,(5)叶和细枝的分解,以及(6)土壤养分有效性的变化。
英文摘要
The impact of Hurricane Iniki on native Hawaiian forest was highly variable. Preliminary observations suggested that native trees were less damaged than introduced species. The spatial pattern of damage seemed to be related to soil wetness, a prime factor limiting tree root depth. The productivity of forests should be affected by removal of leaves, death of fine roots, and nutrient accumulation by fallen leaves and twings. In areas which were not severely damaged by the hurricane, a new mechanism may be identified whereby sub-catastrophic storms help maintain the unique even-aged population structure of native Metrosideros forests. This research will test hypotheses on mechanisms controlling these apparent patterns, and will measure (1) the spatial pattern of damage, (2) damage by size class and species, (3) changes in leaf area and growth rate, (4) changes in fine root biomass, (5) decomposition of leaves and twigs, and (6) changes in soil nutrient availability.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
Collaborative Research: Why Does Forest Growth Decline with Stand Age? Experimental Tests of Carbon Acquisition and Allocation Over Stand Development
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批准号:9707871
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项目类别:Continuing Grant
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资助金额:$42.99万
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财政年份:1997
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负责人:James Fownes
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依托单位:
Why Does Forest Growth Decline with Stand Age? An Experimental Test of Carbon Acquisition and Allocation Over Stand Development
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批准号:9306356
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项目类别:Continuing Grant
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资助金额:$60.0万
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财政年份:1994
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负责人:James Fownes
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依托单位:
国内基金
海外基金
基于深度森林(Deep Forest)模型的表面增强拉曼光谱分析方法研究
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批准号:2020A151501709
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项目类别:省市级项目
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资助金额:10.0万元
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批准年份:2020
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负责人:谢怡
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依托单位:
兴安落叶松林(Larix gmelinii forest) 土壤微生物对火干扰的响应机制研究
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批准号:31870644
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项目类别:面上项目
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资助金额:60.0万元
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批准年份:2018
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负责人:杨光
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依托单位: