Optimizing Restoration: Biophysical Suitability and Social Feasibility in the Nam Kading NBCA, Laos

Abstract

The rapid expansion of hydropower infrastructure in the Lao People’s Democratic Republic (Lao PDR) necessitates robust Forest Landscape Restoration (FLR) strategies to mitigate habitat fragmentation. However, a critical “implementation gap” persists between high-level policy mandates and on-the-ground execution, often resulting from generic restoration approaches that fail to account for site-specific biophysical constraints and complex socio-economic realities. This research bridges this gap by establishing a spatially explicit, empirically grounded restoration baseline for the Nam Kading National Biodiversity Conservation Area (NBCA). Utilizing a multi-scalar methodology, the study integrated remote sensing analysis via Google Earth Engine (GEE) and PlanetScope imagery with ecological ground-truthing and Participatory Rural Appraisal (PRA) in the strategic interface community of Namtek. Results characterize Land Use/Land Cover (LULC) dynamics, revealing that while the core protected area remains largely intact (65.7% forest cover), significant degradation is concentrated in valley floors, comprising 25.0% fallow and 7.6% bare land. A high-priority intervention zone of approximately 20,000 hectares was identified, distinguished by accessible terrain and fertile silty loam soils (pH 6.8) capable of supporting enrichment planting with high-value native species such as Pterocarpus macrocarpus . Crucially, socio-economic analysis identified that deforestation is primarily driven by a livelihood transition toward intensive cassava and rubber cultivation. However, the study posits that the local population, possessing high silvicultural proficiency, is an underutilized operational asset. The research concludes that sustainable restoration in the study area requires pivoting from strict exclusion to a participatory management model. By formalizing “Conservation Labor Contracts” for nursery management and fire suppression, restoration initiatives can align local income streams with forest recovery, thereby ensuring the long-term operational viability of biodiversity offsets in the Greater Mekong Sub-region.