Land use planning and climate change adaptation in river-dependent communities in Nigeria

Abstract

Land use planning and climate change adaptation are critical for ensuring sustainable development and resilience in river-dependent communities in Nigeria. This study examines land use planning and climate adaptation in river-dependent communities in the Lower Niger River region of Nigeria. The research utilizes a mixed-methods approach. Data for the study were gathered from 198 households through surveys, complemented by 17 qualitative interviews and remote sensing techniques to assess land use changes and community perceptions. Findings reveal a notable trend where poor farmers face heightened vulnerability to climate change due to financial constraints, hindering their adoption of adaptive land use strategies. Specifically, more than half of the sampled households possess individual land for agricultural purposes yet lack the resources to effectively mitigate climate-related risks. Among the studied communities, Odekpe emerged as particularly vulnerable, with a prevalence of vulnerability at 32.3% and higher exposure to flood-prone zones.

The quantitative analysis delineates community engagement in land management practices, showcasing proactive resource allocation and conflict resolution efforts among over 60% of participants. However, a significant portion (57.6%) lacked awareness of hydrological changes, potentially impeding effective land use planning and adaptation measures.

Further analysis through remote sensing and mapping techniques revealed shifts in land use land cover, highlighting a transition from predominantly vegetated areas to built-up regions over the past three decades. The flood vulnerability assessment maps underscored substantial vulnerability across the Lower Niger basin, especially in downstream regions, indicating heightened risks due to proximity to the Niger River and heavy rainfall.

Qualitative insights from stakeholder interviews identified challenges impeding effective land use planning, including uncertain climate projections, insufficient data, institutional capacity constraints, and conflicting priorities. Additionally, participants emphasized the need for resilient land use decisions to address urbanization impacts, altered drainage patterns, and diminishing green spaces. The study recommends several key actions to enhance the effectiveness of land use planning and climate adaptation in the Lower Niger River region. These include the imperative to strengthen institutional capacities, improve stakeholder engagement processes, integrate traditional knowledge and practices into planning efforts, fortify legal frameworks governing land use, and prioritize the promotion of sustainable livelihoods among local communities.