泥岩地區冬青菊與苦藍盤非破壞性生長量評估模式

Nondestructive Growth Evaluation Model for India Pluchea (Pluchea indica) and Sea-side Clerodendron (clerodendron inerme) at Mudstone Area

林信輝(Shin-Hwei Lin) ； 張俊斌(Chun-Pin Chang) ； 李明儒(Ming-Ju Lee) ； 孫明德(Ming-Te Sun)

《中華水土保持學報》 32卷3期 (2001/09) Pp. 175-185

https://doi.org/10.29417/JCSWC.200109_32(3).0002

摘要

冬青菊與苦藍盤為西南部泥岩地區適生之優勢植物，為了解其在泥岩地區之生長模式，且為避免在研究過程中影響植物之生長，本研究擬開發可持續性且非破壞性技術，以由量測葉片的乾物重而評估其生長量。研究中測定冬青菊與苦藍盤的六項物理量，並定義葉片長度（L，cm）與最大寬度（Wmax，cm）之乘積為C值，C值與乾物重（Dw）或葉面積均具甚高之相關係數。以自然對數轉換之乾物重（g）與C值（cm^2）之線性關係經由統計迴歸及殘差分析結果，為最適稱之評估模式（苦藍盤：ℓn Dw = -5.579 +0.849 ℓn C：冬青菊：ℓn Dw =-5.782 + 0.906 ℓn C）。以此模式比較二組數據，發現二種植物種類之間並無顯著差異，亦即冬青菊與苦藍盤乾物重可由葉長與最大寬度之乘積再經由公式計算以間接得知[Dw = 2.834×10^(-3)×（L×Wmax）^(09951)，R^2=0.929，PRESS=19.002]。因此，該模式之乾物重非破壞性測定技術具有準確簡易快速與成本低廉之特性並可作持續性成長監測與分析。

關鍵字

泥岩地區 ； 非破壞性測定 ； 殘差分析

並列摘要

India Pluchea (Pluchea indica) and sea-side Clerodendron (Caerodendron inerme) are dominant plants on the mudstone area in southwestern Taiwan. In order to get the growth model of these dominant plants, the technique of estimating sustainable and nondestructive growth (dry weight) must be developed. The dry weight of India Pluchea(Pluchea indica) and Sea-side Clerodendron (Clerodendron inerme) should be measured by methods without causing interference of plant growth.The relationship between dry weight of leaves and other physical properties need to be established in advance. This study measured six different physical properties of India. Pluchea (Pluchea indica) and Sea-side clerodendron (Clerodendron inerme) leaves. The product of leaf length(L, cm) and maximum width (Wmax, cm), defined as C values, has high correlation coefficient with dry weight (Dw)or leaf area. The linear function between natural logarithm of dry weight (g) and natural logarithm of C values (cm^2) was the best fit model (Sea-side Clerodendron: ℓn Dw= -5.579 +0.849 ℓn C: India Pluchea ℓn Dw= -5.782 +0.906 ℓn C)by statistic regression and residual analysis. Statistical F test showed no significant difference in data sets of two plant species estimated the proposed model. The dry weight of India Pluchea (Pluchea indica) and Sea-side Clerodendron (Clerodendron inerme) could be obtained indirectly from leaf lenth and maximum width using the equation: Dw=2.834×10^(-3)×(L×Wmax)^(0.9951)，R^2= 0.929, PRESS= 19.002. The proposed nondestructive growth evaluation model proves to be a simpler and cheaper growth monitor with greater accuracy and efficienncy.

並列關鍵字

mudstone area ； nondestructive measurement ； residual analysis