Part I. Introduction; Assessing the Impacts of Natural Resource Management Interventions in Agriculture: Concepts, Issues and Challenges, H A Freeman, B Shiferaw, and S M Swinton Part II. Valuation of Ecosystem Services and Biophysical Indicators of NRM Impacts; Valuation Methods and Approaches for Assessing Natural Resource Management Impacts, B Shiferaw, H A Freeman, and S Navrud, Agricultural University of Norway, Norway; Measurable Biophysical Indicators for Impact Assessment: Changes in Soil Quality, P Pathak, K L Sahrawat, T J Rego and S P Wani, ICRISAT, India; Measurable Biophysical Indicators for Impact Assessment: Changes in Water Availability and Quality, K L Sahrawat, K V Padmaja, P Pathak and S P Wani, ICRISAT, India; Biophysical indicators of Agro-ecosystem Services and Methods for Monitoring the Impacts of NRM Technologies at Different Scales, S P Wani, P Singh, ICRISAT, India, R S Dwivedi, R R Navalgund, Government of India, India, and A Ramakrishna, ICRISAT, India Part III. Methodological Advances for a Comprehensive Impact Assessment; Econometric Methods for Measuring Natural Resource Management Impacts: Theoretical Issues and Illustrations from Uganda, J Pender, International Food Policy Research Institute (IFPRI), USA; Assessing Economic Impacts of Natural Resource Management Using Economic Surplus, S M Swinton; Bioeconomic Modelling for Natural Resource Management Impact Assessment, S T Holden, Agricultural University of Norway Part IV. NRM Impact Assessment in Practice Valuing Soil Fertility Change: Selected Methods and Case Studies, P Drechsel, International Water Management Institute (IWMI), Ghana, M Glordano, IWMI, Sri Lanka, and T Enters, FAO, Thailand; Evaluating the Impacts of Watershed Management Projects: A Practical Econometric Approach, J Kerr and K Chung, Michigan State University, USA; Assessing Economic and Environmental Impacts of NRM Technologies: An Empirical Application Using Economic Surplus Approach, M C S Bantilan and K V Anupama, ICRISAT, India, and P K Joshi, IFPRI, India; Assessing the Economic and Environmental Impacts of Conservation Technologies: A Farm-level Bioeconomic Modelling Approach, B Shiferaw and S T Holden; Assessing the Impacts of Natural Resource Management Policy Interventions with a Village General Equilibrium Model, S T Holden, and H Lofgren, IFPRI, USA Part V. Towards Improved Approaches for NRM Impact Assessment; The Concept of Integrated Natural Resource Management (INRM) and its Implications for Developing Evaluation Methods, B Douthwaite, Centro Internacional de Agricultura Tropical, Colombia, J M Ekboir, FAO, Italy, S Twomlow, ICRISAT, Zimbabwe, and J D H Keatinge, ICRISAT, India; NRM Impact Assessment in the CGIAR: Meeting the Challenge and Implications for CGIAR Centres, T G Kelley, FAO, Italy, and H M Gregersen, CGIAR, California, USA; Towards Comprehensive Approaches in Assessing NRM Impacts.