Land resources Pollution and Degradation 2 Water resources 2 Biodiversity 1 Biological Resources (Plant) 1 Community Participation and Development, (New March 2000) 1 Community involvement 1 more ... Desertification 1 Environmental degradation 1 Environmental management 1 Environmental policy 1 Grasslands and Rangelands 1 Land Resources 1 Land degradation 1 Land management 1 Land use 1 Natural Resource Economics, (New March 2000) 1 Opinions 1 Plant communities 1 Policy and Planning 1 Range management 1 Rangelands 1 Social Psychology and Social Anthropology, (New March 2000) 1 Socioeconomics 1 Sustainability 1 Water Resources 1 Water conservation 1 Water management 1 Water-supply, Agricultural 1 less ...