頁籤選單縮合
題 名 | 泥岩地區冬青菊與苦藍盤優勢植物蒸發散迴歸模式之研究=Study of an Evapotranspiration Regression Model for India Pluchea and Sea-side Clerodendron as Dominant Plants in a Mudstone Area |
---|---|
作 者 | 林信輝; 張俊斌; 陳意昌; 孫明德; | 書刊名 | 臺灣林業科學 |
卷 期 | 17:3 2002.09[民91.09] |
頁 次 | 頁337-345 |
分類號 | 434.273 |
關鍵詞 | 泥岩地區; 迴歸模式; 蒸發散; 重量差值法; Mudstone area; Regression model; Evapotranspiration; Weight deficit technique; |
語 文 | 中文(Chinese) |
中文摘要 | 對於植物之生長而言,蒸發散量可作為植物水分需求之依據,並可配合相關理論推導出蒸發散簡易模式,以量化小區域內溫度、濕度等微氣候之變化。本研究之目的在於研究二種泥岩地區優勢植物,日照輻射量、飽和蒸氣壓差與蒸發散間之關係,並以此模式探討植物之生理反應、物理作用。植物蒸發散量之量測方式則以重量差值法來代表,經由物理理論推導與現代統計迴歸分析,所建立之蒸發散量(ET, g m-2 h-1)推估模式為日照輻射量(Rs, W/m2)與飽和蒸氣壓差(VPD, hPa)之函數。經由統計F檢定及試驗結果顯示冬青菊(Pluchea indica)之蒸發散於上午(606:00~12:00)及下午(12:00~18:00)有顯著性的差異(上午:ET=-2.19+0.78 Rs+30.62VPD;下午:ET=30.67+0.90Rs+0.58VPD);苦藍盤(Clerodendron inerme)植物之蒸發散量在上午與下午則無顯著影響(ET=-5.68+0.067 RS+0.58VPD)。對冬青菊植物而言,下午時之蒸發散量佔平均一日總量之61.76%;苦藍盤上午蒸發散量則佔總量之30.21%。 佔總量之30.21%。 |
英文摘要 | For the growth of plants, measurement of evapotranspiration in potted plants can provide the required water indices to quantify microclimate changes in a local region. The evapotranspiration model can also be incorporated into a microclimate model to quantify the humidity ratio of inner air. The purpose of this study was to utilize solar radiation (Rs, W/m2) and the saturated vapor pressure deficit (VPD, hPa) to obtain an evapotranspiration (ET, g m-2 h-1) regression model. In order to obtain the best model, a physics theorem, a mathematical theorem, and statistical tools were combined to infer the evapotranspiration model. The weight measurement technique was adopted, and a measuring device was established. According to micrometeorology, solar radiation and the vapor pressure deficit are funcitions of evapotranspiration. Evapotranspiration was studied as a function of solar radiation and the vapor pressure deficit by a physical formula proposed and regression analysis. The experiment results indicated that evapotranspiration was significant. Difference between morning (06:00~12:00) and afternoon (12:00~18:00) in Taiwan mudstone area. For India pluchea (Pluchea indica) (morning: ET=-2.19+0.78 Rs+30.62VPD); afternoon: ET=30.67 0.90 Rs+0.58 VPD). There was no significant difference between morning and afternoon for Sea-side clerdendron (Clerodendron inerme)(ET=-5.68+0.067Rs+0.58VPD).ET average 61.76% per day for India pluchea in the afternoon and reaches 30.21% for Sea-side ckerideb dron in morning. erideb dron in morning. |
本系統中英文摘要資訊取自各篇刊載內容。