頁籤選單縮合
題名 | 武陵地區回收農地之植生復育研究=Vegetation Restoration of the Reclaimed Farmland in Wuling Area |
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作者 | 蔡尚悳; 陳韋志; 曾喜育; 廖冠茵; 蔡尚直心; 蔡尚惪; | 書刊名 | 農業工程學報 |
卷期 | 61:4 2015.12[民104.12] |
頁次 | 頁55-70 |
分類號 | 432.7 |
關鍵詞 | 植生復育; 回收農地; 臺灣鉤吻鮭; 多樣性; 演替; Vegetation restoration; Reclaimed farmland; Formosan landlocked salmon; Oncorhynchus formosanus; Biodiversity; Succession; |
語文 | 中文(Chinese) |
中文摘要 | 武陵地區七家灣溪係臺灣鉤吻鮭的重要棲地,為使其族群得以延續,減少該處之農業活動,並對回收農地進行植生復育乃是當務之急。是故本研究監測回收農地之復育現況,將之分為 A、D~G等 5區集,各區集皆設置 3個樣區,並將之與其鄰近森林植群樣區比較之。結果發現回收農地樣區內土壤 pH值均為中性偏鹼,而鄰近森林植群樣區內土壤 pH值則為酸性。此外,回收農地原栽植樹種以區集 A之山櫻花為主,而地被植物社會主要分為大扁雀麥優勢型、加拿大蓬優勢型,秋季另再區分棒頭草優勢型;又優勢植物尚如圓葉錦葵、輪葉蜀葵、黑麥草、白頂飛蓬等外來種。不同季節、區集間、季節及區集間之地被層多樣性均具顯著差異;即以春季最高,而區集 F之地被層多樣性最高,其次為區集 A;其中區集 A亦是造林成效相對較佳者。另回收農地之鄰近森林種豐富度皆高於回收農地的植群,又植物社會可區分為栓皮櫟優勢型及臺灣二葉松優勢型;其中栓皮櫟型屬演替中後期,而臺灣二葉松型則為演替中前期。是故未來針對回收農地之植栽、造林選種,可參酌鄰近森林的中伴生物種,以降低外來植物入侵之威脅。 |
英文摘要 | Cijiawan Stream in the Wuling area is the important habitat to Formosan landlockedsalmon (Oncorhynchus formosanus). For their propagation, the primary policy is todecrease the agricultural activities and reclaim the farmland to restore the vegetation. We monitored the restoration status on the reclaimed farmland in this study. The reclaimed farmland was divided into 5 blocks, A and D~G, and 3 plots were set on each block. It was found that the soil pH was neutral but on the alkali side in every plot. But the soils in the plots of the forest near by the reclaimed farmland were all acidic. Otherwise, the original planted species was Prunus campanulata, major in Block A. The understory was clustered into Bromus catharticus Type and Conyza canadensis Type, and another Polypogon fugax Type in autumn. The dominant species still included Malva neglecta, M. verticillata, Lolium perenne, Erigeron annuus, which were alien naturalized species. Besides, the understory diversity analysis showed significant differences in different seasons, blocks, and seasons with blocks. The diversity was the highest in spring, and it was the highest in Block F, next to Block A. However, Block A had better restoration performance than other blocks. The species abundance of the forest near by the reclaimed farmland were all acidic was higher than that in the reclaimed farmland. The vegetation of the forest near by the reclaimed farmland was clustered into Quercus variabilis Type and Pinus taiwanensis Type. The former represents the mid-later stage of succession, and the latter represents the mid-former one. Therefore, the associated species in the Pinus taiwanensis Type were better choice for the reforestation on the reclaimed farmland to reduce the threat from the alien species. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。