Forest dynamics, landslide dynamics, and their interactions - a process-based landscape modelling approach for a mountain rain forest in South Ecuador

森林动力学、滑坡动力学及其相互作用——厄瓜多尔南部山地雨林基于过程的景观建模方法

• 批准号: 36004475
• 负责人: Professor Dr. Andreas Huth
• 金额: --
• 依托单位: Department Ökologische Systemanalyse
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/36004475?language=en
• 关键词: Forest; dynamics; landslide; their; interactions

It has been hypothesized that natural disturbances such as landslides have an important effect on biodiversity in the tropical mountain forests of Southern Ecuador. Thus, understanding landslides in the context of forest dynamics is a precondition for understanding this megadiverse ecosystem. Our project aims at analysing and predicting the spatiotemporal dynamics of forest landscapes including landslides and their abiotic and biotic controls. Therefore, we develop process-based forest models and couple them with landslide models of different complexity based on regionalized terrain attributes, soil properties and hydrological factors. The resulting spatially explicit, dynamic integrated landscape model allows us to understand the interplay of the main drivers of landslides and landscape dynamics, and to predict the spatiotemporal development of forests along with their implications on habitat dynamics, biodiversity, risk assessment and forest management. We will be able to estimate carbon balances for the different forest types and the whole research area. The carbon fluxes will strongly depend on the successional state of forests and their disturbance history.

据推测，山体滑坡等自然干扰对厄瓜多尔南部热带山地森林的生物多样性有重要影响。因此，在森林动态的背景下理解山体滑坡是理解这一巨大多样性生态系统的先决条件。我们的项目旨在分析和预测森林景观的时空动态，包括山体滑坡及其非生物和生物控制。因此，我们开发了基于过程的森林模型，并将其与基于区域化的地形属性、土壤属性和水文因素的不同复杂程度的滑坡模型进行耦合。由此产生的空间上明确的、动态的综合景观模型使我们能够了解滑坡和景观动态的主要驱动因素的相互作用，并预测森林的时空发展及其对生境动态、生物多样性、风险评估和森林管理的影响。我们将能够估计不同森林类型和整个研究区域的碳平衡。碳通量将在很大程度上取决于森林的演替状态及其干扰历史。