From chronology to frequency pairing: a paradigm shift in the science of forests and floods
从年代学到频率配对:森林和洪水科学的范式转变
基本信息
- 批准号:194388-2011
- 负责人:
- 金额:$ 1.38万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Discovery Grants Program - Individual
- 财政年份:2011
- 资助国家:加拿大
- 起止时间:2011-01-01 至 2012-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The science of forests and floods is embroiled in conflict and is in urgent need of reevaluation in light of changing climates, insect epidemics, logging, and deforestation. Our scientific perception of the forests and floods relation is preconceived by further reaffirmed by decades of paired watershed studies. However, the outcomes of these studies had recently been challenged because of an inappropriate experimental design factor fundamental to the paired watershed study approach. Decades of paired watershed studies focused on investigating a change in magnitude between pre- and post-harvesting floods when paired by equal meteorological or storm input. This type of chronological event pairing fails to account for the changing frequency of peak flows caused by harvesting and as a result strips a critical part of the physics from the science of forests and floods. Forests, forest harvesting or deforestation alters processes generating floods in ways that change not only the magnitude of a flood but also its frequency. Due to the highly nonlinear linkage between these two attributes of a flood event they should be evaluated simultaneously. This is best done via the framework of a peak flow frequency distribution and not the analysis of variance and covariance, as traditionally conducted in decades of forest hydrology literature. The two inextricably linked questions that should guide a research investigation of the forests and floods relation are: What is the change in magnitude (frequency) for a flood event with a frequency (magnitude) of interest? Such investigation requires a frequency-paired event analysis, where the watershed's hydrologic response of interest is the entire flood frequency distribution. We combine fieldwork with numerical modelling to re-evaluate our scientific perception of the forests and flood relation using the new experimental design of pairing flood events by equal frequency. The analysis is being conducted across a wide range of watershed sizes, hydro-climate regimes, and silvicultural systems.
森林和洪水的科学陷入了冲突,迫切需要根据不断变化的气候,昆虫流行,伐木和砍伐森林进行重新评估。我们对森林和洪水关系的科学认识是先入为主的,几十年的成对流域研究进一步重申了这一点。然而,这些研究的结果最近受到了挑战,因为一个不适当的实验设计因素的基本配对流域研究方法。几十年的配对流域研究集中在调查之间的变化幅度收割前和收割后的洪水时,配对相等的气象或风暴输入。这种按时间顺序排列的事件配对无法解释由采伐引起的峰值流量频率的变化,因此剥夺了森林和洪水科学中物理学的一个关键部分。森林、森林采伐或毁林改变了洪水的形成过程,不仅改变了洪水的规模,而且改变了洪水的频率。由于洪水事件的这两个属性之间的高度非线性联系,它们应该同时进行评估。这是最好的,通过一个高峰流量频率分布的框架,而不是方差和协方差分析,传统上进行了几十年的森林水文文献。指导森林与洪水关系的研究调查的两个不可分割的问题是:对于具有感兴趣的频率(量级)的洪水事件,量级(频率)的变化是什么?这样的调查需要一个频率配对事件分析,流域的水文响应的利益是整个洪水频率分布。我们结合联合收割机实地调查与数值模拟,重新评估我们的科学观念的森林和洪水的关系,使用新的实验设计配对洪水事件的频率相等。这项分析正在广泛的流域规模,水文气候制度和造林系统进行。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Alila, Younes其他文献
The influence of forest and topography on snow accumulation and melt at the watershed-scale
- DOI:
10.1016/j.jhydrol.2007.09.006 - 发表时间:
2007-12-15 - 期刊:
- 影响因子:6.4
- 作者:
Jost, Georg;Weiler, Markus;Alila, Younes - 通讯作者:
Alila, Younes
Parameter transferability within homogeneous regions and comparisons with predictions from a priori parameters in the eastern United States
- DOI:
10.1016/j.jhydrol.2018.03.018 - 发表时间:
2018-05-01 - 期刊:
- 影响因子:6.4
- 作者:
Chouaib, Wafa;Alila, Younes;Caldwell, Peter V. - 通讯作者:
Caldwell, Peter V.
Alila, Younes的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Alila, Younes', 18)}}的其他基金
From chronology to frequency pairing: a paradigm shift in the science of forests and floods
从年代学到频率配对:森林和洪水科学的范式转变
- 批准号:
194388-2011 - 财政年份:2017
- 资助金额:
$ 1.38万 - 项目类别:
Discovery Grants Program - Individual
From chronology to frequency pairing: a paradigm shift in the science of forests and floods
从年代学到频率配对:森林和洪水科学的范式转变
- 批准号:
194388-2011 - 财政年份:2014
- 资助金额:
$ 1.38万 - 项目类别:
Discovery Grants Program - Individual
From chronology to frequency pairing: a paradigm shift in the science of forests and floods
从年代学到频率配对:森林和洪水科学的范式转变
- 批准号:
194388-2011 - 财政年份:2013
- 资助金额:
$ 1.38万 - 项目类别:
Discovery Grants Program - Individual
From chronology to frequency pairing: a paradigm shift in the science of forests and floods
从年代学到频率配对:森林和洪水科学的范式转变
- 批准号:
194388-2011 - 财政年份:2012
- 资助金额:
$ 1.38万 - 项目类别:
Discovery Grants Program - Individual
Forest management effects on flooding in rain-on-snow coastal british columbia: an innovative experimantal - numerical modelling approach
森林管理对不列颠哥伦比亚省沿海雨雪天气洪水的影响:一种创新的实验数值模拟方法
- 批准号:
194388-2005 - 财政年份:2009
- 资助金额:
$ 1.38万 - 项目类别:
Discovery Grants Program - Individual
Forest management effects on flooding in rain-on-snow coastal british columbia: an innovative experimantal - numerical modelling approach
森林管理对不列颠哥伦比亚省沿海雨雪天气洪水的影响:一种创新的实验数值模拟方法
- 批准号:
194388-2005 - 财政年份:2008
- 资助金额:
$ 1.38万 - 项目类别:
Discovery Grants Program - Individual
Forest management effects on flooding in rain-on-snow coastal british columbia: an innovative experimantal - numerical modelling approach
森林管理对不列颠哥伦比亚省沿海雨雪天气洪水的影响:一种创新的实验数值模拟方法
- 批准号:
194388-2005 - 财政年份:2007
- 资助金额:
$ 1.38万 - 项目类别:
Discovery Grants Program - Individual
Forest management effects on flooding in rain-on-snow coastal british columbia: an innovative experimantal - numerical modelling approach
森林管理对不列颠哥伦比亚省沿海雨雪天气洪水的影响:一种创新的实验数值模拟方法
- 批准号:
194388-2005 - 财政年份:2006
- 资助金额:
$ 1.38万 - 项目类别:
Discovery Grants Program - Individual
Forest management effects on flooding in rain-on-snow coastal british columbia: an innovative experimantal - numerical modelling approach
森林管理对不列颠哥伦比亚省沿海雨雪天气洪水的影响:一种创新的实验数值模拟方法
- 批准号:
194388-2005 - 财政年份:2005
- 资助金额:
$ 1.38万 - 项目类别:
Discovery Grants Program - Individual
Effects of forest management on streamflows
森林管理对径流的影响
- 批准号:
194388-2001 - 财政年份:2004
- 资助金额:
$ 1.38万 - 项目类别:
Discovery Grants Program - Individual
相似国自然基金
转录延伸因子参与粗糙脉孢菌生物钟基因frequency表达调控分子机制的研究
- 批准号:
- 批准年份:2021
- 资助金额:58 万元
- 项目类别:面上项目
基于高频信息下高维波动率矩阵估计及应用
- 批准号:71901118
- 批准年份:2019
- 资助金额:18.0 万元
- 项目类别:青年科学基金项目
高频数据波动率统计推断、预测与应用
- 批准号:71971118
- 批准年份:2019
- 资助金额:50.0 万元
- 项目类别:面上项目
粗糙脉孢菌生物钟基因frq转录抑制因子的筛选及其作用机制研究
- 批准号:31330004
- 批准年份:2013
- 资助金额:289.0 万元
- 项目类别:重点项目
新型非对称频分双工系统及其射频关键技术研究
- 批准号:61102055
- 批准年份:2011
- 资助金额:25.0 万元
- 项目类别:青年科学基金项目
全固态钠黄光激光器波长调控与锁定技术研究
- 批准号:60508013
- 批准年份:2005
- 资助金额:23.0 万元
- 项目类别:青年科学基金项目
相似海外基金
Identifying structural variants influencing human health in population cohorts
识别影响人群健康的结构变异
- 批准号:
10889519 - 财政年份:2023
- 资助金额:
$ 1.38万 - 项目类别:
Susceptibility and resistance of multidrug-resistant gram-negative bacteria to novel beta-lactam/beta-lactamase inhibitor combinations
多重耐药革兰氏阴性菌对新型β-内酰胺/β-内酰胺酶抑制剂组合的敏感性和耐药性
- 批准号:
10748676 - 财政年份:2023
- 资助金额:
$ 1.38万 - 项目类别:
Leveraging biobank-scale whole-genome sequencing for polygenic risk prediction
利用生物库规模的全基因组测序进行多基因风险预测
- 批准号:
10716534 - 财政年份:2023
- 资助金额:
$ 1.38万 - 项目类别:
A universal genome editing strategy to develop an airway stem cell therapy for cystic fibrosis
开发囊性纤维化气道干细胞疗法的通用基因组编辑策略
- 批准号:
10683742 - 财政年份:2022
- 资助金额:
$ 1.38万 - 项目类别:
A universal genome editing strategy to develop an airway stem cell therapy for cystic fibrosis
开发囊性纤维化气道干细胞疗法的通用基因组编辑策略
- 批准号:
10615250 - 财政年份:2022
- 资助金额:
$ 1.38万 - 项目类别:
A universal genome editing strategy to develop an airway stem cell therapy for cystic fibrosis
开发囊性纤维化气道干细胞疗法的通用基因组编辑策略
- 批准号:
10369634 - 财政年份:2021
- 资助金额:
$ 1.38万 - 项目类别:
Predicting the impact of genetic variants, genes and pathways on human Disease
预测遗传变异、基因和途径对人类疾病的影响
- 批准号:
10296867 - 财政年份:2021
- 资助金额:
$ 1.38万 - 项目类别:
Predicting the impact of genetic variants, genes and pathways on human Disease
预测遗传变异、基因和途径对人类疾病的影响
- 批准号:
10647775 - 财政年份:2021
- 资助金额:
$ 1.38万 - 项目类别:
Predicting the impact of genetic variants, genes and pathways on human Disease
预测遗传变异、基因和途径对人类疾病的影响
- 批准号:
10483152 - 财政年份:2021
- 资助金额:
$ 1.38万 - 项目类别: