バングラデシュ沿岸マングローブ域の生態系機能・サービスの経済評価と動態マッピング

本研究的目的是评估红树林对孟加拉国沿海居民的生态系统服务。在第一个财政年度，研究员访问了五个地点，邻近孙德尔本斯的危险区和孟加拉国东南部的四个地点。收入数据是从有关的林业部办公室收集的。收集了过去16年的收入，并调查了时间变化。采用焦点小组讨论（FGD）和个人访谈（PI）两种不同的调查方法，研究了人们对研究区生态系统服务的真实感受。在邻近的红树林村庄共进行了22次FGD，包括227名受访者和145名PI。在早期的管理计划期间（2000-'10），木材是孙德尔本斯收入的最大贡献来源，而渔业是最近一个时期（2010-' 20）的最大贡献来源。另一方面，吉大港沿海林区的收入并不显著，因为这些收入主要用于保护目的。未来的森林管理应考虑人们对森林生态系统服务的看法。这些活动的目的应是确保和提高森林依赖者的能力和积极参与，以确保这些红树林的可持续管理。然而，林业部的前景需要以更好的参与性为导向，以便政策将有助于依赖森林的所谓“破坏者”转变为“保护者”。

The aim of this study is to value the mangrove ecosystem services towards coastal peoples in Bangladesh. During the first fiscal year the research fellow visited five sites, Ecologically Critical Area adjacent to Sundarbans and 4 sites in the southeastern Bangladesh. Revenue data were collected from concerned Forest Department offices. Revenue collected since last 16 years were compiled and temporal variation was investigated. What peoples feel really the ecosystem services are in the study area was studied using two different survey methods namely, Focus Group Discussions (FGD) and Personal Interview (PI). Altogether, 22 FGDs including 227 respondents and 145 PIs were carried out in the Mangrove adjacent villages. In earlier management plan period (2000-’10) timber was the highest contributory source for revenue in Sundarbans whereas fisheries found as highest contributory source in latest reign (ongoing 2010-’20). On the other hand, revenue of Chittagong coastal forest division was not found remarkable as those were considered mainly for the protection purposes. The future forest management should consider peoples’ perception concerning forest ecosystem services. Those should be designed to ensure as well as improve forest dependents capacity and active participation to ensure sustainable management of these mangrove forests. However, the outlook of the forest department needs to be shaped with a better participatory orientation so that the policy will help the forest dependent so-called “the destructors” will turn to be “the protectors”.