Carbon and non-carbon climate regulation effects of land transformation systems at landscape level

景观层面土地改造系统的碳和非碳气候调节效应

• 批准号: 532868192
• 负责人: Professor Dr. Dirk Hölscher
• 金额: --
• 依托单位: Abteilung Bioklimatologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/532868192?language=en
• 关键词: Carbon; non; carbon; climate; regulation

Tropical rainforests play a highly important role in climate regulation. In addition to widely acknowledged carbon-based regulation relatively recently also non-carbon biophysical mechanisms, in particular evapotranspiration, have been highlighted. However, land transformation in tropical rainforest regions is proceeding fast and its climate regulation effects have thus far not been evaluated comprehensively. We propose to assess temporal and spatial variability of carbon and non-carbon climate regulation effects in a tropical mosaic landscape. The study area is located in lowland Sumatra, where rainforest in the past decades has to a large extent been converted into monoculture oil palm and rubber plantations. We assess the long-term variation of climate regulation effects with the eddy covariance method in a mature oil palm plantation, where a predicted El Nino Southern Oscillation event and future management interventions may create ‘hot moments’. The spatial variation (‘hot spots’) of vegetation indices, albedo and evapotranspiration as indicator of climate regulation effects will be assessed by ground-referenced drone-based measurements of rainforest, oil palm and rubber plantations, and in a biodiversity enrichment experiment (EFForTS-BEE). Landscape-wide available airborne LiDAR and spectral data will be used for up-scaling. Our project will provide essential climatic and LiDAR information to integrative analyses in partner projects, and lead a study on carbon and non-carbon climate regulation effects of land transformation systems at landscape level.

热带雨林在气候调节中起着非常重要的作用。除了广泛认可的基于碳的调节外，相对于最近的非碳生物物理机制，特别是蒸散量。但是，热带雨林地区的土地转化正在迅速进行，迄今为止，其气候调节效应尚未得到全面评估。我们建议评估热带镶嵌景观中碳和非碳气候调节效应的临时和空间变异性。研究区位于苏门答腊低地，在过去的几十年中，雨林在很大程度上被转化为单一养殖油棕榈和橡胶植物。我们在成熟的油棕工厂中通过涡流协方差法评估了气候调节效应的长期变化，在该工厂中，预测的El Nino Southern振荡事件和未来的管理干预措施可能会产生“热点”。蔬菜指数，反照率和蒸散量作为气候调节效应的指标的空间变化（“热点”）将通过基于地面引用的无人机的雨林，油棕和橡胶植物以及生物多样性丰富实验（努力工作）来评估。全景观可用的机载激光雷达和频谱数据将用于上尺度。我们的项目将为合作伙伴项目的综合分析提供基本的气候和激增信息，并领导一项关于景观水平土地转化系统碳和非碳气候调节影响的研究。