Pruning (1) Assaying (1) Adaptation (1) Observations (1) Surveys (1) Observations (1) Statistics (1) Atlases (1) Rooms (1) Groundwater (1) Trucks (1) Set-off and counterclaim (1) Sand dunes (1) Rural population (1) Plains (1) Oral examinations (1) Landscapes (1) Impact (1) Households (1) Desertification (1) Cisterns (1) Causation (1) Capital (1) Aquifers (1) Statistics (1) Water-supply (1) Analysis (1) Influence (1) Population (1) Kings and rulers (1)