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題 名 | The Importance of Local Water Cycle Monitoring: A Review on Small Scale Evapotranspiration Partitioning=當地水循環觀測之重要性:小規模蒸發散組分之回顧 |
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作 者 | 羅明慧; 陳思妤; | 書刊名 | 國立臺灣大學生物資源暨農學院實驗林研究報告 |
卷 期 | 33:1=303 2019.03[民108.03] |
頁 次 | 頁65-76 |
分類號 | 436.19 |
關鍵詞 | 蒸發散組分; 實地研究; 蒸散; Evapotranspiration partitioning; In situ studies; Transpiration; |
語 文 | 英文(English) |
中文摘要 | 蒸發散組分(evapotranspiration partitioning ET_(part))為森林水文循環相關的研究之重要項目。雖然針對ET_(part)大尺度或全球性的研究有助於推估不同植被在水循環扮演的角色,但實地研究能觀測的影響因子更多,使研究者能夠得到對於不同森林環境的詳細資訊。本文蒐集強調ET_(part)實地研究的重要性文獻。這些文獻大部分皆分別觀測ET_(part)的各個部份,如林分蒸散(T)、截流(I)及土壤蒸發(E)。雖闊葉樹林及針葉樹林的ET_(part)之間不呈明顯差異,但影響ET_(part)的因子以氣候及環境而不同。小範圍的研究有助於讓學者判定哪些因素比較需要觀測。例如,潮濕亞熱帶林與熱帶林比較受蒸氣壓差及太陽輻射之影響,半乾燥及乾燥地區主要受土壤濕度與葉面積指數之影響。實地研究亦對於推測氣候變遷或人為干擾對水循環的影響十分重要。因此,應該進行更多ET_(part)相關的長期觀測(如FLUXNET或SAPFLUX)。 |
英文摘要 | The measurement of the evapotranspiration partitioning (ET_(part)) is very important in studies related to the hydrology of forested areas. Although large or global scale estimation of the ET_(part) can evaluate the role of different vegetation types in the global water cycle, field studies part measure much more factors susceptible to have an effect on the ET_(part), allowing researchers to part obtain detailed information from different forest environments. We reviewed several field studies highlighting the importance of in situ studies, mainly based on the respective measurements of each component of ET_(part), i.e.,canopy transpiration (T), interception (I) and soil evaporation (E). part Although the differences in ET_(part) are not significant between broadleaved and coniferous forests, part the factors influencing ET_(part) vary with climates or environments. Small-scale observations are part very useful in determining factors worthy of continuous monitoring by the characteristics of each different forest type. For example, the ET_(part) in humid subtropical or tropical forest is more part affected by vapor pressure deficit and solar radiation, while the ET_(part) in semi-arid or arid areas is part highly dependent on soil water availability and leaf area index. As a result, field studies are very helpful to assess the climate change or anthropologic disturbance impacts on the local water cycle. We conclude that long-term monitoring of ET_(part) should be performed more frequently part around the world, allowing the creation of a global network (just as for example FLUXNET or SAPFLUX). |
本系統中英文摘要資訊取自各篇刊載內容。