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Establishment of Monitoring and Modeling Systems of Forest Ecosystem Dynamics for Evaluating the effects of Climate Changes

建立森林生态系统动态监测和建模系统以评估气候变化影响

基本信息

批准号：
17380096
负责人：
OTSUKI Kyoichi
金额：
$ 10.44万
依托单位：
Kyushu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17380096/
关键词：
Climate Change Forest Ecosystem Forest Dynamics Hydrological Cycles Material Cycles Monitoring Model University Forest

项目摘要

The object of the research was to establish monitoring and modeling systems of forest dynamics and hydrological and material cycles based on the observations in the four university forests in different climate, and establish the process-based models for evaluating and forecasting the effects of climate changes. Seven monitoring plots for long-term ecological research were set, and the forest data of various forest types were archived by the monitoring using the methods used in the Monitoring 1000 Project of Ministry of Environment Some remote sensing techniques for monitoring forest dynamics were also established. Evapotranspiration process studies based on the sap flow measurement were conducted in various forest stands (Japanese cedar, Japanese cypress, oak, bamboo). Some features of evapotranspiration processes of each forest were obtained, and the guides to measure sap flow for each forest were proposed. By investigating the reported results of long-term water budget and flux measu … More rements, the effects of growth, density and types of forests on the catchment water budget were clarified, and some practical process-based models of evapotranspiration were proposed. The monitoring of hydrological and material cycles was conducted in the serpentinite watershed where these studies were rarely conducted in Japan. The results suggested that the common processes found in other watersheds could not always be applied to the other watershed where the bedrocks were different The results also indicated that the run off process (suspended / soluble) of nitrogen and phosphorus were considerably different depend on the discharge, and proposed the practical models to estimate the discharges of these nutrients. Hydrological process-based model was made, and effects of climate changes on the discharge from the forest catchment in the snowy region were analyzed. Although these results were not fully integrated, many new data, information, techniques, and models obtained in this project will contribute to the researches on global warming. Less

研究目的是根据四所大学森林在不同气候下的观测，建立森林动态、水文和物质循环的监测和建模系统，并建立基于过程的模型来评估和预测气候变化的影响。设置了7个长期生态研究监测样地，采用环境部监测千点工程方法监测归档了各森林类型的森林数据，建立了一些森林动态监测的遥感技术。在各种林分（日本柳杉、日本扁柏、橡树、竹子）中进行了基于液流测量的蒸发蒸腾过程研究。获得了各森林蒸散过程的一些特征，并提出了测量各森林液流的指南。通过调查长期水收支和通量测量的报告结果，阐明了森林生长、密度和类型对流域水收支的影响，并提出了一些实用的基于过程的蒸散模型。水文和物质循环的监测是在蛇纹岩流域进行的，而这些研究在日本很少进行。结果表明，在其他流域发现的常见过程并不总是适用于基岩不同的其他流域。结果还表明，氮和磷的径流过程（悬浮/可溶）根据排放量有很大不同，并提出了估算这些营养物排放量的实用模型。建立了基于水文过程的模型，分析了气候变化对雪区森林流域流量的影响。尽管这些成果尚未完全整合，但本项目获得的许多新数据、信息、技术和模型将为全球变暖的研究做出贡献。较少的