Department of Land Resource Management, School of Public Administration, China University of Geosciences, Lomo Road 388, Wuhan 430074, China.
Registrar Office, Confidential Branch, Government College University Lahore, Katchery Road, Lahore 54000, Pakistan.
Int J Environ Res Public Health. 2021 Jul 11;18(14):7416. doi: 10.3390/ijerph18147416.
West African coastal areas including the Beninese coastal zones have undergone an intensification of socio-economic activity in the last few decades that has been strongly driven by the effects of rapid urbanization. This has led to land-use and land cover changes that represent threats to the sustainability of various ecosystem functions. Such dynamics of land use and land cover changes pose challenges to coastal zone management. Correct assessment is vital for policymakers and planners to ensure efficient and sustainable use of the coastal ecosystem services, and it remains crucial to achieving sustainable coastal zone management. This study examines changes in land-use and land cover (LULC) and their impacts on ecosystem services value (ESV) fluctuations in the tropical coastal region of Benin, West Africa. We employed Globe Land 30 image data for the years 2010 and 2020, and the ESV fluctuations during the study period were evaluated using the benefit transfer approach (BTA) with corresponding local coefficients values and the GIS techniques. The results reveal that (1) in the current urbanizing coastal area, the LULC types have changed significantly, with obvious reductions in forest land and waterbodies and a considerable increase in artificial surfaces; (2) the total ESV decreased by 8.51% from USD 7.1557 million in 2010 to USD 6.5941 million in 2020; (3) the intensity of LULC in the coastal region has increased over the last 10 years; (4) regions with high land-use intensity have a high rate of ESV change; and (5) provisioning services are the greatest contributors of ESV (51% in 2010; 41% in 2020), followed by supporting services (37% in 2010; 35% in 2020) and regulating services (25% in 2010; 30% in 2020). Uncontrolled changes in LULC from forest land and waterbodies are the main causes of the loss in total ESV, necessitating urgent measures to improve the coastal ecosystem sustainability through effective planning and policies.
西非沿海地区包括贝宁沿海地区，在过去几十年中经历了社会经济活动的强化，这主要是由快速城市化的影响所驱动的。这导致了土地利用和土地覆盖变化，对各种生态系统功能的可持续性构成了威胁。这种土地利用和土地覆盖变化的动态给沿海地区的管理带来了挑战。正确的评估对政策制定者和规划者来说至关重要，以确保沿海生态系统服务的有效和可持续利用，这对于实现可持续的沿海地区管理仍然至关重要。本研究考察了西非贝宁热带沿海地区土地利用和土地覆盖（LULC）的变化及其对生态系统服务价值（ESV）波动的影响。我们使用了 Globe Land 30 图像数据，分别为 2010 年和 2020 年，并且使用基于受益转移方法（BTA）的 GIS 技术，结合当地系数值，评估了研究期间的 ESV 波动。结果表明：（1）在当前城市化的沿海地区，土地利用类型发生了显著变化，林地和水体明显减少，人工表面显著增加；（2）生态系统服务总价值从 2010 年的 7155.7 万美元下降到 2020 年的 6594.1 万美元，下降了 8.51%；（3）过去 10 年来，沿海地区的土地利用强度有所增加；（4）土地利用强度高的地区 ESV 变化率高；（5）供应服务是 ESV 的最大贡献者（2010 年为 51%；2020 年为 41%），其次是支持服务（2010 年为 37%；2020 年为 35%）和调节服务（2010 年为 25%；2020 年为 30%）。林地和水体的土地利用和土地覆盖的无节制变化是生态系统服务总价值损失的主要原因，需要采取紧急措施，通过有效的规划和政策，提高沿海生态系统的可持续性。
