Sustainable Agriculture and Natural Resource Management (SANREM) Knowledgebase

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https://hdl.handle.net/10919/64847

The Sustainable Agriculture and Natural Resource Management (SANREM) Knowledgebase is a collection of information resources (books, reports, journal articles, videos, movies, presentations) produced or identified, classified, and summarized by SANREM researchers. This collection provides direct access or links to resources relevant to sustainable agriculture and natural resource management. - http://www.oired.vt.edu/sanremcrsp/professionals/knowledgebase/

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Feed the Future SANREM Innovation Lab
Office of International Research, Education, and Development (OIRED)
526 Prices Fork Road
Blacksburg, VA 24061-0378
E-mail: sanrem@vt.edu
Telephone: +1 (540) 231-1230
Fax: +1 (540) 231-140

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Now showing 1 - 9 of 9

Conservation agriculture and ecosystem services
Dillaha, Theo A. III (Blacksburg, VA: Virginia Tech, Office of International Research, Education, and Development (OIRED), 2009)
Conservation agriculture and ecosystem services
Dillaha, Theo A. III; Heatwole Shenk, Cheryl B.; Moore, Keith M. (American Society of Agricultural and Biological Engineers, 2010)
Conservation agriculture has many agricultural and food security benefits. In addition, conservation agriculture has potential on- and off-site ecosystem service benefits that are the focus of this paper. Ecosystem services provided by conservation agriculture fall into three main categories: provisioning services such as increased food production; regulating services such as carbon sequestration and climate regulation, reducing losses of soil, pesticides, nutrients and other potential contaminants in surface and subsurface water flows, and water cycle improvements; and supporting services such as nutrient and storage and cycling. This paper focuses on the regulating service benefits of conservation agriculture: erosion control, reduced losses of pesticides and nutrients, and particularly water cycle benefits including increased water productivity (more crop per drop), infiltration, percolation, plant available water storage, groundwater recharge, plant available water, and stream baseflow and decreases in peak stream flows and downstream flooding.
Developing an adaptive management approach for small holder innovation
Moore, Keith M.; Dillaha, Theo A. III (SANREM CRSP, OIRED, Virginia Tech, 2006)
The objective of this presentation is to promote the development of a book to help development agents in developing (and developed) countries to better understand what is involved in the management of complex adaptive systems. The problem relates to linked rural poverty and environmental sustainability, though this can be solved through adaptive management for small holder innovation by providing development agents with knowledge and understanding to assist small holder innovation for adaptive management of complex adaptive systems (CAS). The objective is to encourage policy makers and donors to support local innovation and adaptive management.
Introduction to SANREM Cross Cutting Research Activities
Moore, Keith M.; Motavalli, Peter P.; Christie, Maria Elisa; Garrett, Karen A.; Heatwole, Conrad D.; Mwangi, Esther (Office of International Research, Education and Development, Virginia Tech, 2009)
Monitoring changes in hydrologic response due to land management changes at the watershed scale: Time lag and other issues
Dillaha, Theo A. III (2007)
Global expenditures on watershed management activities to improve watershed services are estimated to exceed three to five billion US dollars per year. The needs, locations, costs and effectiveness of conservation and restoration activities are constantly debated and there is little scientific consensus on the effectiveness of payments for watershed services projects in achieving measurable improvements in watershed services. An element frequently missing from this discussion is a realistic estimation of whether desired outcomes will be obtained and the time required before desired outcomes are attained. While conservation or restoration actions are well-intended, expectations about timing of outcomes and effectiveness of such actions are often unrealistically short. This presentation identifies timeframes over which conservation and restoration outcomes in watersheds dominated by agricultural activities are likely to be realized and explores landscape, ecological, and social factors that may influence their success.
Nitrogen modeling of potato fields in the Bolivian Andes using GLEAMS
Walker, Sarah Madeline (Virginia Tech, 2009-09-11)
An increase in population in rural agricultural communities and higher demand for food throughout Bolivia create the need for increased agricultural production. The objective of this study was to assess the suitability of the GLEAMS model as a tool for evaluating fertilization and cropping system practices for potatoes in the Andes of central Bolivia, and make recommendations for the continued development of the model as an analysis tool to improve sustainable crop production. Model suitability was evaluated through assessment of model representation of observed potato farms and behavior of simulated soil nitrogen (N) and N transformation trends; validation with field data taken from six agricultural sites in central Bolivia for runoff volume, soil total Kjeldahl N concentration, crop production, and crop N uptake; and sensitivity analysis. Validation of model output with observed values was completed both graphically and by determining the root mean square error standard deviation ratio (RSR) and the percent bias (PBIAS). RSR and PBIAS values for runoff volume were 4.0 and 65%, 4.5 and 4%, and 2.7 and 55% for three respective experimental plot repetitions using a calibrated SCS curve number of 90. The RSR and PBIAS, respectively, for soil total Kjeldahl N concentration were 3.0 and -2.2%. The RSR and PBIAS, respectively, for crop dry matter production were 7 and 21%. The RSR and PBIAS, respectively, for crop N uptake were 10 and 21%. The mineralization processes in GLEAMS must be improved before model application to central Bolivia, where agricultural production is highly dependent on mineralization of organic N from soil and applied animal manure. Recommendations for model improvement and development include modification to the process that determines mineralization from the soil potentially mineralizable N pool; validation of the percolation volume and nitrate leaching losses; and improved model representation of banded manure application.
Payments for Watershed Services: Regional syntheses
Dillaha, Theo A. III; Ferraro, Paul J.; Huang, M.; Southgate, Doug; Upadhyaya, S. K.; Wunder, Sven (SANREM CRSP, OIRED, Virginia Tech, 2007)
This brief is a synthesis of the three regional reviews of Payments for Watershed Services (PWS) that were developed for Africa, Asia, and Latin America. Payments for Watershed Services and PES are used somewhat interchangeably, but it should be recognized that PWS is actually a subset of PES where watershed services are at least one of the environmental services being targeted. This research brief provides an overview of the following PWS/PES issues if they could be characterized for the region:
PES Knowledgebase: Overview and demonstration of a new tool
Dillaha, Theo A. III (2007)
The SANREM CRSP Knowledgebase (SKB) is an online database of resources, including books, reports, journal articles, and videos produced or cataloged by SANREM researchers. It is searchable by title, author, creation date, keywords, media type, time period, location, abstract, language, and actual resource or link to resource. The database contains nearly 2,000 entries. The SKB has been modified for PES to include project type and definition, promoted action, valuation method, provider compensation method, buyer, seller, intermediaries, measure of service provided, ecosystem, and ecosystem service. The PES Knowledgebase contains information on 160 significant PES and PES-like projects, and 150 additional PES information resources such as books, journal articles, and reports. Access to the PES Knowledgebase is through the SANREM CRSP website, http://www.oired.vt.edu/sanremcrsp/ under Information Resources.
Regional differences and similarities in PES programs for hydrologic services
Dillaha, Theo A. III (2007)
This presentation summarizes regional syntheses of payments for watershed services (PWS) activities in Africa (Paul Ferraro), Asia (Margie Huang and Shyam Upadhyaya, and Latin America (Douglas Southgate and Sven Wunder).

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