Modelling of nutrient dynamics and vegetation succession in midstream sediment bars of a regulated river
Modelling of nutrient dynamics and vegetation succession in midstream sediment bars of a regulated river
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DOI：
10.1080/15715124.2014.902377
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发表时间：
2014-01-01
影响因子：
2.5
通讯作者：
Rashid, Md H.
中科院分区：
文献类型：
--
作者：
Asaeda, Takashi;Rashid, Md H.
在间歇性洪水干扰的调控河流的洪泛区，营养盐动态主要取决于植被的演替阶段，植物群的类型和先前的大洪水所带来的初始基质条件。在这项研究中，我们收集的数据，植物和基质参数从砾石酒吧在日本的管制河流和营养动态和植被演替模型的基础上观测数据之间的异速生长关系。利用日本荒江和黑部河的实地观测数据对模型进行了验证。我们得到了令人满意的协议之间的观察和模拟结果。所开发的模型可以预测渐进的植被生物量和草本植物和树木在大洪水间隔的沉积物酒吧处理的养分量。
In the floodplain of a regulated river with an intermittent flood disturbance, nutrient dynamics is mainly dependent on the successional stage of vegetation, types of flora and initial substrate conditions brought about by a previous large flood. In this study, we collected data on plant and substrate parameters from a gravelly bar of a regulated river in Japan and developed nutrient dynamic and vegetative succession models on the basis of allometric relationships between observed data. The models were validated with field observed data from the Ara and Kurobe Rivers of Japan. We obtained satisfactory agreements between observed and simulated results. The developed models can predict the progressive vegetative biomass and amount of nutrients processed by herbaceous plants and trees on a sediment bar during large flood intervals.