A Model Integration Framework for Assessing Integrated Landscape Management Strategies

Jared M Abodeely,David J Muth,Kenneth M Bryden,Joshua B Koch

doi:10.1007/978-3-642-41151-9_12

Jared M Abodeely, David J Muth + Show 2 more

Open Access

https://doi.org/10.1007/978-3-642-41151-9_12

Copy DOI

Publication Date: Jan 1, 2013
Citations: 12	License type: cc-by

Affiliation: Idaho National Laboratory, Iowa State University

Abstract

Nitrogen application is a standard practice for maximizing productivity of an agronomic system. The challenge is that many commercial scale agricultural systems are inefficient in utilizing the nitrogen that is applied. Therefore, understanding the impact of land management practices on nitrogen use inefficiencies within the agroecosystem is critical. This paper presents an integrated model that quantifies the impact of various land management practices on specific agroecosystem units. This integrated model is composed of the Wind Erosion Prediction System (WEPS), the Revised Universal Soil Loss Equation, Version 2 (RUSLE2), the Soil Condition Index (SCI), and the daily CENTURY model, DAYCENT. The integrated model was used to determine the impact of land management strategies on greenhouse gas emissions and nitrate leaching in a 60.5 ha field in Webster County, Iowa, USA. It was found that nitrogen use efficiency can vary significantly across a field and that integrated land management strategies can reduce overall nitrogen losses.

Full Text