2014-08-012024-05-17https://scholars.lib.ntu.edu.tw/handle/123456789/690459摘要：本研究為整合型計畫「探討以生態系服務為本的紅樹林復育策略」之子計畫二，研究目的為：（1）量化分析紅樹林在洪水保護及海岸防護上的生態系服務功能；（2）透過現地調查及數值模擬的方式，瞭解相關物理機制，並建立在地數據；（3）釐清水筆仔及海茄苳生育地的主要關鍵環境因子及其適合度（4）建立紅樹林生育地模式；（5）釐清海岸紅樹林與河岸紅樹林間的種源擴散、交換及補充機制。本計畫之研究地點共有6處：淡水河挖子尾、竹圍、關渡，以及彰化芳苑、嘉義好美寮、臺南七股溪，這6個研究地點包含不同紅樹林種類(海茄苳、水筆仔)、不同棲地類型(海岸型、河岸型)，以及林齡(老齡、中齡、幼齡)之紅樹林。本研究透過資料蒐集、現地調查及數值模擬等多樣方式，設計157組數值實驗以檢驗本研究所提出的5個假說，並以「生態系服務」的角度評估最佳化之紅樹林密度、寬度、覆蓋比例。本計畫之研究內容與國際間關切的防洪、防波軟性資材的議題相吻合，研究產出預期能有多項學術突破，並將強化與其他子計畫間的橫向聯繫，扮演其他子計畫重要資訊提供者的角色，同時透過本計畫的研究成果，更清楚紅樹林與環境間的物理作用過程及機制，預期可作為實務單位制訂相關規範之依據。<br> Abstract: A healthy mangrove ecosystem can be defined by how sustainable the system is, how many species it shelters, and how many and what levels of services it provides. The net primary production of the mangrove Kandelia obovata in Tanshui estuary was estimated to be 4.14~7.55 g DW m-2 d-1, indicating a significant means of carbon sequestration. However, excessive spreading of mangroves caused changes in ecosystem functions and an increase in flood threat. Moreover, the water level declined significantly from a 5-yr to 2-yr recurrence flood level by partially removing mangrove trees. According to our previous assessment of the connections between ecosystem services and human wellbeing, the best balanced ecosystem service may depend on the social satisfaction of the security of continuous supply of services. As a result, we considered the key to implementing integrated adaptive management for promoting a healthy mangrove ecosystem is to rigorously identify a set of measures of ecosystem services that meet the demands of human wellbeing by considering the constituents of ecosystem functions: primarily flood regulation, biodiversity maintenance, climate regulation, and carbon sequestration. The objectives of this study are: (1) quantifying the mangrove ecosystem services of flood prevention by calculating flood level decrease rate and coastal protection by estimating the reduction rate of storm surge level, (2) developing the local biotic and abiotic parameters by field survey and identifying the interactions and mechanisms between mangroves and environment, (3) calculating the habitat suitability curves of mangroves, (4) establishing the habitat suitability model of mangroves, (5) examining the mangrove seeds spreading and exchanging mechanism based on hydrodynamic aspect. Five hypotheses are presented and will be tested by conducting the 157 well-designed numerical experiments. The field data for validating the numerical models, TABS-2 for hydrodynamic simulation and MIKE21 for wave and near shore current simulation, will be collected in six study sites. They are Wazwei, Zhuwei and Guandu in Tanshui River, Fanyuan in Changhua County, Howmeiliou in Chiayi County and Chigu Creek in Tainan County. The optimum of mangrove density, coverage ratio and width will be discussed. The outcomes of this study would provide useful information to other related projects and the feedbacks will also be collaborated and incorporated.紅樹林海岸防護適合度曲線生態系服務最佳化mangrovecoastal protectionhabitat suitability curveecosystem serviceoptimum