The interplay between vegetation and water in mangroves: new perspectives for mangrove stand modelling and ecological research
The interplay between vegetation and water in mangroves: new perspectives for mangrove stand modelling and ecological research
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红树林植被与水之间的相互作用：红树林林分建模和生态研究的新视角
DOI：
10.1007/s11273-020-09733-0
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发表时间：
2020
影响因子：
1.8
通讯作者：
Berger
中科院分区：
文献类型：
--
作者：
Peters;Walther;Lovelock;Berger
人们普遍认为，植被格局和供水相互定义对方。在红树林，土壤水的盐分和相应的渗透势是植物供水的主要驱动力。因此，地下过程可能是红树林结构和动态的关键。然而，现有的模拟模型描述红树林森林动态不量化的水从土壤中的单一植物的吸收，传统上忽略任何反馈的植被上的水的可用性，而是使用经验，统计模型的植物竞争影响生长。我们提供了一个简短的回顾，在国家的艺术红树林森林模型，重点是如何地下过程被认为是。我们主要遵循两个方向：（1）竞争地下资源的现象学概念和（2）评估盐度和供水对植被的影响和可能的反馈机制，从植被到地下条件。我们假设，耦合植被-地下水模型将有助于我们更好地了解红树林系统的动态和性能，他们的能力，坚持或恢复压力水文条件下，以及他们对环境变化的地下水系统和运输。这种联合方法的好处将：（i）构成接近控制过程的内在地下竞争描述;（ii）同时利用植被格局的次要、约束信息来推导出一个新概念，以获取有关地下异质性和参数化的知识。本文的目的是奠定理论基础和指导方针，为未来的建模遵循在创建一个更现实的红树林模型耦合地上和地下的过程。拟议的建模方法有可能是有用的，特别是在森林科学和植物生态学的广大观众，但也为流体动力学建模（如地下流动和运输检测植被模式作为地上代理）。
It is commonly accepted that vegetation patterns and water supply mutually define each other. In mangroves, soil water salinity and the corresponding osmotic potential are the main drivers of plant water supply. Below-ground processes thus may be key for the structure and dynamics of mangrove stands. Nevertheless, existing simulation models describing mangrove forest dynamics do not quantify the water uptake of the single plant from the soil and traditionally neglect any feedback of the vegetation on the water availability, but instead use empirical, statistical models for plant competition affecting growth. We provide a brief review on the state of the art of mangrove forest models with an emphasis on how below-ground processes are regarded. We follow mainly two directions: (1) phenomenological concepts for competition for below-ground resources and (2) assessing the impact of salinity and water supply on the vegetation and possible feedback mechanisms from the vegetation to the below-ground conditions. We hypothesise that a coupled vegetation-groundwater model would avail us to better understand the dynamics and properties of mangrove systems, their capability to persist or rehabilitate under stressful hydrological conditions, as well as their response to environmental changes related to the groundwater system and transport. The benefits of such a joint approach would (i) constitute an intrinsic below-ground competition description close to the governing processes and (ii) concurrently exploit secondary, constraining information from vegetation patterns to derive a new concept to acquire knowledge on subsurface heterogeneity and parametrisation. The aim of this paper is to lay the theoretical groundwork and guidelines for future modellers to follow in the creation of a more realistic mangrove model coupling above- and below-ground processes. The proposed modelling approach has the potential to be useful for a broad audience based particularly in forest sciences and plant ecology in general, but also for hydrodynamic modelling (e.g. subsurface flow and transport detected by vegetation patterns as above-ground proxy).
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