溪頭地區地震及颱風災害跡地土壤熱傳導係數之探討

Base Study on Soil Thermal Conductivity on Earthquake and Typhoon Disaster Place at Shitou Area

陳信雄(Hsin-Hsiung Chen) ； 張振生(Cheng-Sheng Chang) ； 魏聰輝(Tsong-Huei Wey)

《國立臺灣大學生物資源暨農學院實驗林研究報告》 19卷3期 (2005/09) Pp. 177-186

https://doi.org/10.6542/EFNTU.200509_19(3).0001

摘要

本研究以溪頭地區遭受地震及颱風災害跡地為研究對象，利用「土瓖熱性質檢測儀」，檢測地震及颱風災害跡地之源頭區（A樣區）、輸送區（B樣區）及堆積區（C樣區）各樣區之表層土壤熱傳導係數，檢測結果為堆積區：1.19 Jm^(-1)℃^(-1)S^(-1)、輸送區：1.00 Jm^(-1)℃^(-1)S^(-1)、源頭區：0.31Jm^(-1)℃^(-1)S^(-l)；另於實驗室檢測三個樣區之表層土壤樣本的風乾含水率、密度與熱傳導係數，結果顯示土壤熱傳導係數與含水率呈現正相關(R=0.83~0.95)。

關鍵字

神木溪保護林 ； 闊葉林 ； 竹林 ； 枯落物 ； 森林地表

並列摘要

The purpose of this study was to investigate the thermal conductivity of apparent soil on the source head plot, transport plot and cumulate plot of the disaster areas caused by earthquake and typhoon in Shitou. Soil multi-thermal properties meter was employed as a major instrument in the study. Soil thermal conductivities were 1.19 Jm^(-1)℃^(-1)S^(-1), 1.00 Jm^(-1)℃^(-1)S^(-1) and 0.31 Jm^(-1)℃^(-1)S^(-1) with respect to the source head, transport and cumulate plots. The moisture content, density and thermal conductivity of soil samples from above plots were also examined in laboratory. There was shown significant correlation (R=0.83~0.95) between soil thermal conductivity and soil moisture content.

並列關鍵字

921 earthquake disaster ； typhoon disaster ； soil thermal conductivity ； ecosystem restoration