Restoring oil palm rivers: assessing the effects of riparian re-vegetation and in-channel modifications on biodiversity and functionality

恢复油棕榈河：评估河岸植被恢复和河道内改造对生物多样性和功能的影响

• 批准号: 2873498
• 金额: --
• 依托单位: University of Nottingham
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2873498
• 关键词: Restoring; oil; palm; rivers; assessing

Vast areas of tropical forest, predominantly in Indonesia and Malaysia, have been replaced by monocultures of oil palm (Elaeis guineensis). Conversion of tropical forest to oil palm plantations (OPPs) reduces habitat heterogeneity, and is associated with declines in terrestrial biodiversity and ecosystem functioning. The environmental and ecological effects on freshwater habitats situated within OPPs are less well understood but include increased sedimentation, bank erosion and pollution, and altered river morphology and hydrological regimes, with negative implications for freshwater fauna and flora.Riparian buffer zones (i.e. areas of forest and/or non-production vegetation with no chemical inputs along the river) can mitigate negative impacts of OPPs on riverine biodiversity and functioning, and are now a legal requirement in Indonesia. However, many older OPPs often extend to riverbanks. In these cases, restoration of riparian areas, addition of in-channel features and/or alteration of channel morphology may provide effective mitigation strategies. Although multiple large-scale projects have focused on the restoration of temperate rivers, much less work has been done on tropical river restoration. As such, there is an urgent need to identify restoration approaches in OPP-rivers that maximise benefits to biodiversity and functioning whilst maintaining oil palm crop productivity.Making use of a large-scale, long-term riparian restoration experiment in Indonesia - the Riparian Ecosystem Restoration in Tropical Agriculture (RERTA) Project, this project aims to identify effective strategies for restoring OPP-rivers. Objectives are to:(O1) Quantify how different riparian vegetation restoration treatments affect river morphology and processes, water quality and biodiversity in the long- and short-term;(O2) Quantify how in-stream restoration combined with/without riparian restoration approaches affect river morphology and processes, water quality and biodiversity; and(O3) Quantify to what extent specific ecosystem functions and services of biodiversity are supported by the restoration treatments tested.

在印度尼西亚和马来西亚，主要是热带森林的广阔地区，已被油棕（Elaeis guineensis）的单一培养所取代。将热带森林转化为油棕种植园（OPPS）可降低栖息地的异质性，并与陆地生物多样性和生态系统功能的下降有关。对OPP内部的淡水栖息地的环境和生态影响知之甚少，但包括增加沉积，银行侵蚀和污染，改变河流形态和水文制度，对淡水动物群和植物区域的负面影响。RiapiagariagrianBuffer区域的淡水区域（即，与河流和非生产的植被和非化学植被及其化学效果的区域以及无河的植被和无河的影响），可以在河流中进行混乱），而越来越多的河流可以使用MIT的植被，而不是河流的植被和植被，则可以在河流中使用MIT的植被，而越来越多的植被和植被的植被和无效。功能，现在是印度尼西亚的法律要求。但是，许多年长的OPP经常扩展到河岸。在这些情况下，恢复河岸地区，增加通道内特征和/或渠道形态的改变可能会提供有效的缓解策略。尽管多个大型项目集中在恢复温带河流上，但在热带河流恢复方面的工作要少得多。因此，迫切需要确定OPP-RIVIRS中的恢复方法，以最大程度地提高生物多样性和运作，同时保持油棕作物的生产力。使用印度尼西亚的大规模长期河岸恢复实验 - 沿河岸生态系统恢复在热带农业（RERTA）中，该项目的项目恢复，以确定恢复精神的战略。目的是：（O1）量化不同的河岸植被恢复处理如何影响河流的形态和过程，长期和短期的水质和生物多样性；（O2）量化流程恢复与/没有河岸恢复方法如何影响河流的形态和过程，水质和生物多样性； （O3）量化生物多样性的特定生态系统功能和服务在多大程度上得到了测试的恢复处理的支持。