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題名 | 感潮溼地不同含水量對網目海蜷熱傳導之影響=Soil Water Content of Tidal Wetlands Effect on Thermal Conductivity of Cerithidea Rhizophorarum |
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作者 | 林信宏; 張文亮; Lin, Hsing-hom; Chang, Wen-lian; |
期刊 | 農業工程學報 |
出版日期 | 20031200 |
卷期 | 49:4 2003.12[民92.12] |
頁次 | 頁63-72 |
分類號 | 361.522 |
語文 | chi |
關鍵詞 | 網目海蜷; 熱傳導; 溼地; Cerithidea rhizophorarum; Thermal conductivity; Wetland; |
中文摘要 | 本研究是以探討網目海蜷在感潮濕地上散熱的機制。研究地點為孛仔尾自?生態保留區,共進行兩次連續24小時的田間實驗,結果顯示螺類及表土的溫度變化,皆符合熱傳導的理論假設sin曲線。其熱傳導係數受土壤質地與土壤含水量的影響,土壤質地愈粗與土壤含水量愈高,則螺的熱傳導係數愈大,例如在挖仔尾的第一次實驗,平均土壤含水量為75%、55%與46%時,測得螺的熱傳導係數為0.254mcal/cmsec℃、0.0116mcal/cmsec℃ea 0.147mcal/cmsec℃,因此網目海蜷會選擇土壤含水量較高與質地較粗的灘地為主要棲地。在第二次的實驗,土壤含水量為95%、85%與42%時,測得螺的熱傳導係數為0.10 mcal/cmsec℃、0.086 mcal/cmsec℃與0.061 mcal/cmsec℃,皆低於第一次的結果由微氣象資料顯示,第二次的實驗風速較高,所以螺類部分熱通量由熱對流方式,藉由風散熱。因此在感潮溼地的管理,為了增加網目海蜷的棲息,必須要維持質地顆粒較粗的灘地、較高的土壤含水量,與較大的空氣流通率。 |
英文摘要 | The main purpose for this study was to assess how Cerithidea rhizophorarum uses the heat dissipating mechanism on the tidal wetland. The experimental sites is located at the Waziwei Natural Ecological Reservoir. In the study, two continuous 24-hour monitor on the temperature of the soil were precede. The result of this experiment shows that, the soil surface and the snail’s temperature are matched with the sin graph hypothesis of the thermal conductivity theory. In addition, the moisture and composition of the soil would effect the thermal conductivity theory. IN addition, the moisture and composition of the soil would effect the thermal conductivity, because the coarser and wetter the soil are, the higher the thermal conductivity will be. For example, on the first experiment in Waziwei, when the averages of the soil moisture percentages: were 75%, 55% and 46%, the Cerithidea rhizophorarum’s thermal conductivity would be 0.254 mcal/cmsec℃, 0.116 mcal/cmsec℃, and 0.14 mcal/cmsec℃. As a result, Cerithidea rhizophorarum would choice coarser and soil with heavy moisture for habitation. ON the second experiment, when soil moisture were 95%, 85% and 42%, the Cerithidea rhizophorarum’s thermal conductivity would be 0.10 mcal/cmsec℃m 0.086 mcal/cmsec℃ and 0.061 mcal/cmsec℃. In comparison with the first experiment in Waziwei, the first experiment’s wind speed at the time was stronger than the seoncd one. Therefore, snail would dissipate heat through the wind. In order to increase habitation for Cerithidea rhizophorarum in the tidal wetland, coarse sand, soil with heavy moisture and wind ventilation are a must. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。