2023-01-012024-05-18https://scholars.lib.ntu.edu.tw/handle/123456789/699503人類世是指地球最近的地質年代，起源時間約為1950年，強調人類活動對地球系統的影響。本計畫藉由現場觀測、衛星資料與地表模式建構森林總初級生產量以及潛熱通量的資訊，加上一系列氣候模式的實驗設計、執行與分析，了解人類活動和氣候變化影響下熱帶雲霧森林中的生態-水文-氣候的交互作用。雲霧森林，由於氣候宜人擁有大量的動植物而這些地區也經常種植重要的經濟作物，因此，雲霧森林是生物多樣性和全球經濟的熱點。近幾十年陸地環境的主要擾動之一是森林因高溫和長期乾旱以及森林砍伐，這樣的擾動會導致森林覆蓋面積大幅減少。然而，高溫也可能促進一些森林區的樹木生長。另一方面，森林砍伐會改變當地和區域的降水型態。全球熱帶雲霧森林中的複雜系統涉及(a) 水文氣候對生態系統的影響、(b) 全球變暖、氣候變化和人類活動對生態水文氣候的影響，以及(c) 生態、水文和氣候之間的交互作用。在不斷變化的氣候系統和人為影響下，這些影響因素如何相互作用以及它們對熱帶雲霧森林的碳和水循環的綜合影響是目前極具挑戰的研究領域。本計畫將首次提供從流域到區域到全球尺度的知識背景，定量數據和統計、物理模式結果，以了解在人類世，森林生態系統的水循環，碳通量與能量收支。 The Anthropocene is a geologic epoch to emphasize the impact of human activities on the earth system, with an approximate onset time of 1950. The primary goal of this proposed research is to understand the significance of ecohydro-climate interactions in the tropical cloud forest under the influences of anthropogenic effects and climate changes from analyses of in-situ and satellite observations, land surface model, and climate models experiments. Tropical cloud forests harbor a substantial amount of flora and fauna and economic crops due to the amiable climate. Therefore, tropical cloud forests are hotspots of biodiversity and global economics. However, the influences of global warming and climate variabilities on the tropical terrestrial ecosystem is not unequivocal. One of the major perturbations in the recent decades of the terrestrial environment is a substantial reduction in forest cover due to forest die-off by elevated temperatures and prolonged drought, as well as deforestation. In contrast, the elevated temperature may also facilitate tree growth in some humid tropical regions, while deforestation may also alter the local and regional precipitation patterns. Thus, a complex system in tropical cloud forest involves (a) the influence of hydro-climate in the ecosystem, (b) the influence of global warming, climate variabilities, and anthropogenic activities in the eco-hydroclimate, (c) the interactions among ecology, hydrology, and climate. How those factors interacting with each other and what their separated and combined effects are on the carbon and water cycles over the tropical cloud forests is a grand challenge research area, especially under a changing climate system and anthropogenic influences. To our knowledge, the proposed project will be the first time to provide the knowledge background, quantitative data, and model simulations to understand the water cycles, energy budget, and carbon flux patterns in the cloud forest ecosystem from watershed to regional scales to global scales in the Anthropocene.雲霧森林;氣候變化;人類活動;人類世;森林砍伐;碳循環;水文循環;tropical cloud forest; climate changes; anthropogenic activities; deforestation; Anthropocene; net carbon uptake; water cycle