U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 close



Research
                Research Home
                            National Programs
                            Research Projects
                            Scientific Manuscripts
                            International Engagement
                            Scientific Software/Models
                            Databases and Datasets
                            Office of Scientific Quality Review
            Media
                News & Features
                            Multimedia
                            Briefing Room
                            Down on the Farm
                            Press Room
                            Science in Your Shopping Cart
                            Scientific Discoveries
                            Tellus
                            Under the Microscope
            About ARS
                About ARS Home
                            Staff Directory
                            Labs and Research Centers (Map)
                            Headquarter Offices
                            Organizational Chart
                            Employee Services (REE Employees Only)
                            Office of Outreach, Diversity, and Equal Opportunity
            Work With Us
                Work With Us Home
                            ARS Vacancies at USAJOBS
                            Careers at ARS Information
                            Scientific Collaborations
                            Extramural Agreements
                            1890 Faculty Research Sabbatical ProgramSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications

Title:   Author  item
                                            Ma, Liwangitem
                                            Ahuja, Lajpatitem
                                            Malone, Robert

                                                         - *Rob*
  Submitted to: Transactions of the ASABE
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 8/1/2007
                                    Publication  Date: 11/8/2007
                                    Citation: Ma, L., Ahuja, L.R., Malone, R.W. 2007. System Modeling for Soil and Water Research and Management:  Current Status and Needs for the 21st Century. Transactions of the ASABE. 50(5):1705-1713.Interpretive Summary: Process-based models of agricultural systems are essential for optimizing the use of increasingly limited water and soil resources, guiding tactical management, and addressing the environmental concerns and global issues. Agricultural engineers have made significant contributions in the past to the development of such models and their applications in soil and water research, design, and management, and they are uniquely capable of making the much-needed and exciting further enhancements. Here, we present: (1) current status of system model development and applications in soil and water research and management, with examples of the USDA-ARS, Root Zone Water Quality Model (RZWQM); (2) lessons learnt from RZWQM development and applications that, based on our international collaborations and literature, shared with other models; and (3) future needs and directions in system model enhancements and applications to make them more effective.
                                Technical Abstract: Quantitative system approaches, provided by process-based models of agricultural systems, are essential for optimizing the use of increasingly limited water and soil resources, guiding tactical management, and addressing the environmental concerns and global issues of the 21st century. Agricultural engineers have made significant contributions in the past to the development of such models and their applications in soil and water research, design, and management, and they are uniquely capable of making the much-needed and exciting further enhancements. Here, we present: (1) current status of system model development and applications in soil and water research and management, with examples of the USDA-ARS, Root Zone Water Quality Model (RZWQM); (2) lessons learnt from RZWQM development and applications that, based on our international collaborations and literature, shared with other models; and (3) future needs and directions in system model enhancements and applications to make them more effective. We make a strong case for international collaborations among modelers and experimentalists and for a common development/applications protocol and platform for the future.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov