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Sustainable Environment: Nexus Project, Zachary S. Brecheisen, Darrell Schulze, Timothy Filley, Jino Ramson, W. Daniel Leon-Salas, Natalie Chin, Fariborz Daneshvar, Andre De Lima Moraes Nov 2018

Sustainable Environment: Nexus Project, Zachary S. Brecheisen, Darrell Schulze, Timothy Filley, Jino Ramson, W. Daniel Leon-Salas, Natalie Chin, Fariborz Daneshvar, Andre De Lima Moraes

Purdue GIS Day

Arequipa region is locaed in Southwestern Peru. The Arequipa Nexus Institute for food, energy, water and the environment aims to address the key challenges to a sustainable furture for the people in the region. This roundtable discusses about the sustainable water management, geosaptial analysis and environment sharing, long range sensor network solution for soil health monitoring and data management and sharing in this Nexus project.


Integrating Socio-Environmental Models: Vegetation, Agriculture, And Landform Dynamics, Miguel Acevedo, William Boyd, Hessam Sarjoughian, Isaac Ullah, Michael Barton Jun 2018

Integrating Socio-Environmental Models: Vegetation, Agriculture, And Landform Dynamics, Miguel Acevedo, William Boyd, Hessam Sarjoughian, Isaac Ullah, Michael Barton

International Congress on Environmental Modelling and Software

How did landscapes evolve as agriculture emerged thousands of year ago? How do we ensure sustainable food production and still maintain environmental quality? Integrated socio-environmental models help provide answers to these two seemingly distant, yet related questions. For practical purposes, in this paper we use the terms socio-ecological and socio-environmental systems, with acronym SES as synonyms. The Mediterranean Landscape Dynamics (MedLand) project aims to develop experimental SES models made possible by recent advances in computation while exercising interdisciplinary collaboration. In this paper, we exemplify one aspect of this integration by discussing the development of a vegetation model, which at the …


Simulating Hydroeconomic Impacts Of Potential Water Rights Trade In The Lake Naivasha Basin Using A Mopec Modeling Framework, Tesfaye Woldeyohanes, Arnim Kuhn Dr. Jun 2018

Simulating Hydroeconomic Impacts Of Potential Water Rights Trade In The Lake Naivasha Basin Using A Mopec Modeling Framework, Tesfaye Woldeyohanes, Arnim Kuhn Dr.

International Congress on Environmental Modelling and Software

We use an integrated hydroeconomic model for Lake Naivasha Basin, Kenya (LANA-HEBAMO) to analyze the impact of institutional and biophysical changes on resource allocation and water system performance. An extended mathematical programming approach called MOPEC (multiple optimization problems with equilibrium constraint) is used. This approach allows each economically independent water user to maximize its own objective function subject to another agent’s water use decisions as well as other biophysical and institutional constraints. MOPEC is an individual optimization approach and avoids unrealistic assumptions in aggregate optimization that assume omniscient decision maker with perfect foresight to reallocate water such that the water …


Comparing System Dynamics And Agent Based Modeling Methods Through Their Application In A Single Case Study, Ravi Gorripati, Nagesh Kolagani, Uma Garimella, Palaniappan Ramu Jun 2018

Comparing System Dynamics And Agent Based Modeling Methods Through Their Application In A Single Case Study, Ravi Gorripati, Nagesh Kolagani, Uma Garimella, Palaniappan Ramu

International Congress on Environmental Modelling and Software

Participatory modeling helps stakeholders to understand their problems and arrive at mutually acceptable solutions through what-if scenario analysis. Several papers comparing use of different participatory modeling methods in different contexts across the world are available in the literature. A novel contribution of our paper is simultaneous use of two such methods, system dynamics and agent based modeling, to address the same problem in a single case study and compare their results. We apply these two methods to model crop-water-market dynamics in a south Indian village over last fifty years. While building system dynamics model, causal loop diagram was drawn by …


Modeling Dynamic Feedbacks Between Water Supply And Water Use In A Snow-Fed Agricultural Basin, Richard Niswonger, Eric D. Morway, Wesley Kitlasten, Murphy Gardner, Enrique Triana, Steve Regan Jun 2018

Modeling Dynamic Feedbacks Between Water Supply And Water Use In A Snow-Fed Agricultural Basin, Richard Niswonger, Eric D. Morway, Wesley Kitlasten, Murphy Gardner, Enrique Triana, Steve Regan

International Congress on Environmental Modelling and Software

Hydrologic models are used to evaluate past water budgets and future water supplies in developed river basins. Moreover, models are commonly used to evaluate alternative management options for enhancing water supply or to estimate anticipated impacts of climate and land-use change. Principal to these analyses is the realistic representation of feedbacks between water supply and water use. In agricultural basins, these feedbacks are complicated by water governance used to allocate water during periods of limited water supply. Most hydrologic studies develop models with predetermined water use and proceed to evaluate impacts on water resources. This approach has historically worked well …


Economic Viability And Environmental Impact Of Processing Arid Crops In The American Southwest, Hailey Summers, Evan Sproul, Jason Quinn Jun 2018

Economic Viability And Environmental Impact Of Processing Arid Crops In The American Southwest, Hailey Summers, Evan Sproul, Jason Quinn

International Congress on Environmental Modelling and Software

Drought represents a significant risk for agricultural producers in the American Southwest. One method for limiting this risk is planting high value crops that are drought resilient. Two such crops, Guayule and Guar, are native to arid climates and produce a broad range of valuable products including natural rubber, guar gum, and biofuels. This work outlines two process models used to evaluate the efficiency of converting raw Guayule and Guar biomass into final products. The process models are leveraged to develop life cycle (LCA) and techno-economic analyses (TEA) that will be used to evaluate the social, environmental and economic feasibility …


Comet-Planner: Carbon And Greenhouse Gas Evaluation For Usda-Nrcs Conservation Practice Planning, Amy Swan, Mark Easter, Kevin Brown, Mark Layer, Keith Paustian Jun 2018

Comet-Planner: Carbon And Greenhouse Gas Evaluation For Usda-Nrcs Conservation Practice Planning, Amy Swan, Mark Easter, Kevin Brown, Mark Layer, Keith Paustian

International Congress on Environmental Modelling and Software

Conservation planners must assess a range of environmental, agronomic and economic impacts of implementing conservation practices on farms. While environmental impacts such as soil erosion control, improved soil quality, reduced nonpoint source pollution and a number of other site-specific benefits are currently considered, conservation practices may also have significant climate benefits, through carbon sequestration and/or reduction of greenhouse gas (GHG) emissions. If conservation planners wish to incorporate greenhouse gas impacts in their planning process, they will need access to quick, easy-to-use tools to assess greenhouse gas impacts of conservation practices on farms. COMET-Planner (www.comet-planner.com) was developed to provide …


Locate And Mitigate The State Of Nitrate: Assessing Potential Sources Of Nutrients In Tributaries To The Nooksack River, Alyssa Peter, Melanie Roy May 2018

Locate And Mitigate The State Of Nitrate: Assessing Potential Sources Of Nutrients In Tributaries To The Nooksack River, Alyssa Peter, Melanie Roy

Scholars Week

Anthropogenic activities greatly increase the amount of nitrogen entering our environment. While this allows for increased agriculture production, excess nitrogen raises health concerns for humans and ecosystems. Understanding the sources of excess nutrients is necessary for effective efforts to reduce them. We aimed to understand nutrient fluxes through tributaries to the Nooksack River, in particular, to what extent are excess nutrients arriving to northern Whatcom County from Canada via both surface and ground water. We collected water samples from three creeks fed by the central portion of the Sumas-Blaine aquifer (Kamm, Fishtrap, and Bertrand), two situated at the southern edge …


Salmon-Safe Farms, Ellen Southard, Amelia Bahr Apr 2018

Salmon-Safe Farms, Ellen Southard, Amelia Bahr

Salish Sea Ecosystem Conference

Stewardship Partners recognizes the crucial role farmers play in the protection of our watersheds and salmon populations, leading us to implement the Salmon-Safe program in Washington in 2004 to support landowners who are promoting and practicing sustainable land management to combat environmental degradation. To date, we have added more than 100 different Washington State farms and vineyards to the program — ensuring the restoration and maintenance of watershed health across tens of thousands of agricultural acres. Since the major salmon streams in the Puget Sound basin flow through the most productive agricultural valleys, conservation efforts aimed at protecting salmon and …


Listening To Farmers: The Farming In The Floodplain Project, Spencer Easton Apr 2018

Listening To Farmers: The Farming In The Floodplain Project, Spencer Easton

Salish Sea Ecosystem Conference

The Farming in the Floodplain Project (FFP) is an effort to engage farmers in the Clear Creek area, just east of Tacoma, in the planning and design of a multiple-benefit floodplain reconnection project. The foundation of the FFP is to understand and document technical information on the needs of the agricultural community in the area so that those needs can be incorporated into the project. Environmental Science Associates (ESA) conducted technical work on the FFP on behalf of PCC Farmland Trust. Over the course of the FFP, we learned to let the viewpoints of farmers guide how we conducted our …


Soil Conductivity Study And Implications For Fish And Farming Compatibility In The Swinomish Agricultural Area, Nicole Casper, Todd A. Mitchell, Karen J.R. Mitchell, Jason J. Thompson Apr 2018

Soil Conductivity Study And Implications For Fish And Farming Compatibility In The Swinomish Agricultural Area, Nicole Casper, Todd A. Mitchell, Karen J.R. Mitchell, Jason J. Thompson

Salish Sea Ecosystem Conference

The Swinomish agricultural area, along the Swinomish Channel, is part of the Skagit River Delta, a major agrarian region in Puget Sound. Historically a complex system of tidal channels serving as salmon habitat, the tidelands have since been diked and drained. In 2005, the Swinomish Indian Tribal Community (SITC) began restoration to demonstrate compatibility of fish habitat and agriculture. Muted tidal regulators (MTRs) operated to optimize tidal inundation and fish passage, replaced traditional tidegates, and prompted a study to evaluate soil conductivity impacts on agriculture. Objectives included electromagnetic (EM) surveying of soil conductivity, qualitatively assessing EM results utilizing two additional …


Integrating Watershed-Scale And River-Reach Protection And Restoration Planning To Promote Climate Resilience In The South Fork Nooksack River (Sfnr), Oliver Grah, Susan Dickerson-Lange Apr 2018

Integrating Watershed-Scale And River-Reach Protection And Restoration Planning To Promote Climate Resilience In The South Fork Nooksack River (Sfnr), Oliver Grah, Susan Dickerson-Lange

Salish Sea Ecosystem Conference

The Nooksack Indian Tribe reservation is located at the foot of the North Cascades Mountains, approximately 13 miles east of Bellingham, WA and the Salish Sea. The Tribe relies on a harvestable surplus of Pacific salmon in the Nooksack River for cultural, subsistence, and commercial purposes. Today, Pacific salmon runs are less than 10 percent of the runs in the late 1800’s. Causes of the declines are complex; however, it is well understood that the legacy of commercial forestry, agriculture, and development has increased sediment loading and water temperature. Climate impacts will cumulatively add to the legacy impacts, which are …


Integrated Agricultural Riparian Stewardship In The Stillaguamish And Snohomish Watersheds, Kristin Marshall, Cindy Dittbrenner, Carrie Byron, Colin Hume Apr 2018

Integrated Agricultural Riparian Stewardship In The Stillaguamish And Snohomish Watersheds, Kristin Marshall, Cindy Dittbrenner, Carrie Byron, Colin Hume

Salish Sea Ecosystem Conference

The Stillaguamish and Snohomish River watersheds are regionally important to the health of Puget Sound and the Salish Sea and in particular for the recovery of salmon. The habitat gains needed to achieve salmon recovery in these watersheds include much of the agricultural landscape in Snohomish County, a situation that often results in conflicts between salmon recovery and agricultural communities. The Snohomish Conservation District’s National Estuary Program-funded Integrated Riparian Stewardship project is one of several efforts aimed at simultaneously achieving agricultural land preservation and salmon habitat protection and restoration in one of the fastest growing counties in the United States, …