塔塔加地區土壤動物之初步研究

A Preliminary Study on Soil Animals of Ta-Ta-Chia Area

莊俊逸(Chun-Yi Chuan) ； 袁孝維(Hsiao-Wei Yuan) ； 王亞男(Ya-Nan Wang)

《國立臺灣大學生物資源暨農學院實驗林研究報告》 17卷4期 (2003/12) Pp. 239-245

https://doi.org/10.6542/EFNTU.200312_17(4).0005

摘要

本研究主要探討塔塔加地區主要林相中土壤動物的種類組成及物種多樣性、優勢種群的數量變動及不同林型下土壤動物的組成及數量異同，且初步探討土壤動物數量在12個月中變化及其與土壤因子、微氣候因子間的關係，並透過食性分析，初步擬定其食物網結構。樣區設立為：鐵杉林區、玉山箭竹區、高山芒。自1998年3月至1999年2月每個月定期調查一次，共採集546樣本數，包括216個乾烘土樣、216個溼烘土樣及24個手挑土樣。共記錄大、中、小型土壤動物2860個，分屬於3門7綱20目34科。據已有資料分析塔塔加地區土壤動物群落之性質屬於高山針葉林土壤動物類型。林相中土壤動物數量及類群數以鐵杉林為最多，其次為箭竹林及高山芒。優勢類群上鐵杉林為跳蟲類、玉山箭竹林為線蚓類，高山芒則無明顯之優勢類群。

關鍵字

土壤動物 ； 鐵杉 ； 玉山箭竹 ； 高山芒

並列摘要

We studied the soil animal composition, diversity, quantity variation of dominant taxa in the major forest types of Ta-Ta-Chia district. The study sites were established in the stands of Tsuga chinensis var. formosana, Yusania niitakayamensis and Miscanthus sinensis to provide fundamental data of material cycle and energy research in Ta-Ta-Chia district forest ecosystem through the food resource analysis and preliminary constructed food chain. We collected the monthly data from March 1998 to February 1999.A total of 546 samples were collected, including 216 samples from dry soils, 216 samples from wet soils and 24 hand-picked samples. A total of 2,860 soil animals were recorded including macrofauna, middlefauna and microfauna, which belong to 3 phyla, 7classes, 20 orders and 34 families. According to the previous study, the soil animals in Ta-Ta-Chia belong to the Alpine coniferous soil animal type. The results show that the soil animal number and diversity are the highest in Tsuga stand, followed by Yusania and Miscanthus stands. Collembola is dominant in Tsuga stand, Enchytraeidae is dominant in Yusania stand, but there was no particularly dominant tax on in Miscanthus type.

並列關鍵字

Soil animal ； Tsuga chinensis var. formosana ； Yusania niitakayamensis ； Miscanthus sinensis