頁籤選單縮合
題 名 | 關渡自然公園水稻田供為野鳥棲地之研究=Investigation on Rice Field as Bird Habitats in GanDau Nature Park |
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作 者 | 邱文雅; 張文亮; | 書刊名 | 農業工程學報 |
卷 期 | 48:4 2002.12[民91.12] |
頁 次 | 頁81-90 |
分類號 | 361.526 |
關鍵詞 | 濕地; 水稻; 野鳥; Wetlands; Paddy rice; Wild birds; |
語 文 | 中文(Chinese) |
中文摘要 | 關渡自然公園水稻田區配合自然公園的成立,其經營管理的運作目標以提供生態利用價值為其主要目的,其中之一即是鳥類棲地的功能。水稻田土壤翻犂時的操作有助於增加土壤中的含氧量及鷺科鳥類的群聚覓食,並達到最大群數40隻。關渡水稻田為水鳥所利用的時機以一期稻作的插秧期較多,適逢候鳥北返時節,鳥類利用此區為棲息地,水稻田蓄水型態與淺水池相似,水深3~8公分,為水鳥於清晨及黃昏時所利用,以秧苗流失的情形估計水鳥對於水田初期耕作的影響。水稻田於插秧期,秧苗受水鳥干擾流失的比例約為10~19%,而綜合整期稻作生產期間水稻受損的比例最高約38%。本研究以標準化之莫氏散佈指數,調查水鳥對水稻田的利用是否屬群聚性,經由插秧期及收穫期對流失稻苗在空間上分佈的調查中顯示,關渡水稻田中部分坵塊流失之秧苗呈現顯著的群聚性,為野鳥所利用。水稻田在不施農藥與有機肥的生態經營方式下,本區影響水稻產質的最主要因素還是在洪水的問題。 |
英文摘要 | Paddy rice fields located in GanDau Nature Park is very similar to manmade wetlands and one of its primary purposes is serving as habitats for wildfowl. Taking ecological and habitat factors into consideration, it will increase wildfowl feeding and resting under proper management. The purpose of this study is to survey the spatial distribution of wildfowl during the first season crop in GanDau Nature Park. Wildfowl use paddy rice fields as temporary habitats during the initial stage of the first crop cultivation, since irrigation water was stored in the fields with a depth of 3 to 8 cm. The percentage of rice shoots damaged by birds is about 10 to 19% and up to 38% during the whole season. Standard Morisita Dispersion Index is used to investigate the degree that paddy fields used by birds. It shows that damaged rice shoots are significantly clumped in the paddy fields near the northern ponds. After organic fertilizers and organic manures were used for cultivation, yields and qualities of harvest in the first year are decreased from 0.37kg/m² to 0.29 kg/m². However, flooding in this lowland area is the main factor that causes decreasing harvest yields. |
本系統中英文摘要資訊取自各篇刊載內容。