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生态系统对孟加拉国沿海人民的服务。在第一个财政年度，研究员访问了五个地点，孙德尔本斯附近的生态临界区和孟加拉国东南部的四个地点。收入数据从有关的林务署办事处收集。统计了近16年以来的税收，并调查了时间变化。通过焦点小组讨论（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域生态系统服务的真实感受。在红树林附近的村庄共进行了22项工程发展计划，包括227项回应和145项计划。在早期的管理计划时期（2000- 2010年），木材是孙德尔本斯收入的最大贡献来源，而在最近的统治时期（2010- 2020年），渔业是收入的最大贡献来源。另一方面，吉大港沿海森林司的收入并不显著，因为这些收入主要用于保护目的。未来的森林经营应考虑人们对森林生态系统服务功能的认识。这些方案的目的应是确保和改善依赖森林的人的能力和积极参与，以确保这些红树林的可持续管理。然而，森林部门的前景需要以更好的参与取向来塑造，以便政策将帮助依赖森林的所谓“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”.