More is not necessarily better: The role of cover and spatial organization of resource sinks in the restoration of patchy drylands

摘要: Abstract A low-cost restoration action in patchy drylands worldwide is the installation of obstructions (hereafter, resource sinks) to break runoff pathways and retain resources. Field-works have studied how effectiveness this depends on materials installed. However, influence cover spatial organization sinks not been widely investigated. In work, we use a well-known dryland model study different initial installed affect recovered ecosystem. agreement with field-work studies, our results confirm that can restore degraded would recover naturally. More importantly, very small was sufficient trigger vegetation recovery, while high lead complete failure. Higher plant densities were reached when distribution similar self-organized reference healthy system (i.e., regular system). Given low installations, suggested by combined needed, potential be key contributor large efforts needed achieve land-degradation neutrality, particularly developing countries.