摘要: | 本研究為二年期計畫,今年度為第一年,已完成以下項目:1. 完成243個森林型濕地之地理資訊數位化;2. 完成北部、東北部、中部地區共9個森林型濕地3季之生物資源監測調查;3. 提出濕地之分級架構、評估流程與方法;4. 撰寫森林型濕地生物資源調查作業手冊;5. 蒐集104篇相關調查報告,並將物種名錄建置成電子資料庫。本研究資料蒐集的成果,顯示台灣具有相當豐富的森林型濕地,且這些濕地擁有相當多樣的生物資源,包含不少特有種或是保育類,由此可知森林型濕地相當具有保育價值。此外,由於各濕地之獨特性高,因此現有的濕地保育措施,應有擴大的需求,此情形亦說明濕地普查的必要性。野外調查結果指出,外來種是目前森林型濕地在生態上面臨之一大問題,此在中、低海拔特別需要關注;由於森林型濕地生態系面積小,相對較為脆弱,因此本問題應儘早擬定對策。在保育分級上,本研究提出台灣濕地分級系統,建議以四層級的地景尺度為骨架,輔以生物與環境屬性,做為分級之考量。在方法上,調查試作之資料分析結果呈現,增加取樣方法以及增加調查頻度,確實對蒐集完整之森林型濕地生物資源,有正面的效果。不過考量經費以及時間之限制,如何施作才能達到最高之效益,仍需待蒐集完整一年之資料後才能更加準確地評估。
is project had finished the following items: 1. GIS digitalization of total 243 forest wetlands; 2. monitoring of bioresource of nine forest wetlands; 3. proposing a rule for categorizing the forest wetlands on the conservation purpose; 4. editing the handbook for bioresource inventory of forest wetlands; 5. collecting 104 related reports and transforming the bioresource data into a digital database. There were plenty of forest wetlands, and diverse bioresource in these wetlands in Taiwan. Therefore, it showed the conservation value of the forest wetlands. Moreover, because the unique of each wetland, it was suggested that the present conservation scope on wetlands need to be expanded. Meanwhile, it also showed the necessity of general investigation for all forest wetlands. The alien species impact was a serious problem which native wetland species was facing, especially for those on low and medium elevations. For the wetland ecosystem being fragile, the problems mentioned should be valued. For the conservation on forest wetlands, we proposed a protocol named 'TWI', which categorized the wetlands into a four-tier scheme. The results of practical investigations showed that more frequent data samplings could get more complete bioresource. However, it might take too much cost and time for operating such frequent samplings. The point of balance on cost, time and data quality could be decided when the annual monitoring is finished. |