Land use 951 Planning 240 History 231 Land use, Rural 220 Land use, Urban 195 Environmental aspects 187 City planning 164 mer ... Land tenure 138 Law and legislation 110 Government policy 103 Agriculture 89 Economic aspects 88 Social conditions 75 Management 73 Sustainable development 64 Economic conditions 62 Regional planning 61 Social aspects 57 Architecture 55 Urbanization 54 Arquitectura 50 urban and land use planning 50 Natural resources 46 Environmental conditions 44 Environmental policy 43 Human ecology 42 Cities and towns 40 Land reform 40 Conservation of natural resources 39 Politics and government 39 mindre ...