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发挥着非常重要的作用，除了最近得到广泛认可的基于碳的调节外，非碳生物物理机制，特别是蒸散量，也得到了重视。然而，热带雨林地区的土地转型正在迅速进行。迄今为止，气候调节效应尚未得到全面评估。我们建议评估热带马赛克景观中碳和非碳气候调节效应的时间和空间变化。该研究区域位于苏门答腊岛低地，那里有雨林。过去几十年在很大程度上已经转变为单一种植的油棕和橡胶种植园，我们在成熟的油棕种植园中使用涡流协方差方法评估了气候调节效应的长期变化，其中预测了厄尔尼诺南方涛动事件和未来的管理干预措施可能会创造“热点时刻”，作为气候调节效果指标的植被指数、反照率和蒸散量的空间变化（“热点”）将通过基于地面参考的无人机测量雨林、油棕和我们的项目将为合作伙伴项目的综合分析提供必要的气候和激光雷达信息，并在生物多样性丰富实验（EFForTS-BEE）中使用。景观层面土地改造系统的碳和非碳气候调节效应研究。