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Data Collection of Aquatic Plant in Different Environment to the Modeling

不同环境下水生植物的数据采集与建模

基本信息

批准号：
15404015
负责人：
ASAEDA Takashi
金额：
$ 8.7万
依托单位：
Saitama University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15404015/
关键词：
Growth model Phragmites Typha Eleocharis sphacelata Charophytes R S ratio Latitude Australia Eleocharis shacelata 抽水植物エコロジカルモデリング Eleocharis sphacerata Juncus ingens Baumea arthrophylla 沈水性植物

项目摘要

In order to predict the growth responses for Aquatic plants in different age, water depths, climate condition, and any other environmental factors, Phragmites australis, Typha angustifolia, Zizania latifolia were studied in a natural stand in lake and pond in Japan. Eleocharis sphacelata, Baumea arthrophora, and Juncus ingens were also investigated in Australia.Summary of the main results are as follows.1)As for Phragmites australis, there is a clear variation between rhizome age-classes in belowground resources translocation patterns depending on the season.2)The growth was severely retarded by cutting combined with salinity, which was many implications for better management of Phragmites stands.3)The comparison of the growth performance of Phragmites across the geographic gradient relealed differences in phonological and growth/production traits.4)A dynamic growth model was developed for Typha latifolia and Typha angustifolia that took account of their vertical productive structures, life cycle, shoot height, leaf area and aboveground biomass.5)In contrast to other species, self-thinning of Zizania latifolia shoots reallocates some of the minerals contained in the dead shoots back to the rhizomes, which can be regarded as a strategy to replenish the reduced resources of the rhizomes. And, some submerged plant, Potamogeton perfoliatus, and two species of Charophytes were also investigated.

为了预测水生植物在不同年龄、不同水深、不同气候条件以及其他环境因子下的生长反应，在日本的湖塘天然林中对芦荟、香蒲、宽叶孜然进行了研究。结果表明：1)芦荟根茎年龄级随季节变化有明显的差异；2)采伐结合盐度对芦荟生长发育有明显的抑制作用，这对芦荟林分的管理具有重要意义；3)芦荟在不同地理梯度上的生长表现差异较大；4)考虑了香蒲和香蒲的垂直生产结构、生活史、地上部高度、生长速度等因素，建立了芦荟生长动态模型5)与其他物种不同的是，自疏可以将枯枝中的部分矿物质重新分配到根茎中，这可以被视为补充减少的根茎资源的一种策略。此外，还调查了一些沉水植物--贯叶金缕梅和两种轮藻。