Open Access. Powered by Scholars. Published by Universities.®

Social and Behavioral Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 2 of 2

Full-Text Articles in Social and Behavioral Sciences

Impacts Of Agricultural Expansion On Surface Runoff: A Case Study Of A River Basin In The Brazilian Legal Amazon, E. E. Maeda, A. R. Formaggio, Y. E. Shimabukuro, Amy L. Kaleita Sep 2009

Impacts Of Agricultural Expansion On Surface Runoff: A Case Study Of A River Basin In The Brazilian Legal Amazon, E. E. Maeda, A. R. Formaggio, Y. E. Shimabukuro, Amy L. Kaleita

Agricultural and Biosystems Engineering Publications

This work presents an analysis of the Land Use and Land Cover (LULC) changes of a region in the Brazilian Legal Amazon, and an evaluation of their impacts on the surface runoff regime. This case study took place at the Suiá-Miçu River basin, located in the northeast region of Mato Grosso State. LULC maps were produced for the years 1973, 1984 and 2005 using remote sensing data. After analyzing the agricultural expansion in the study area, the Automated Geospatial Watershed Assessment Tool (AGWA) was applied in performing the surface runoff modeling for each of the analyzed years using the SCS ...


Construction Resource Use Of Two Different Types And Scales Of Iowa Swine Production Facilities, Peter J. Lammers, Mark S. Honeyman, Jay D. Harmon, James B. Kliebenstein, Matthew J. Helmers Jan 2009

Construction Resource Use Of Two Different Types And Scales Of Iowa Swine Production Facilities, Peter J. Lammers, Mark S. Honeyman, Jay D. Harmon, James B. Kliebenstein, Matthew J. Helmers

Agricultural and Biosystems Engineering Publications

As global populations and affluence rise, there is increasing demand for energy, animal protein, and construction materials. In many cases, available resource pools are insufficient to meet growing market demands, resulting in increased prices and competition for limited resources. This study evaluates key construction resources needed to build different types and scales of Iowa swine production facilities. Two types of facilities — conventional confinement and hoop barn-based — within farrow-to-finish pig production systems scaled to produce either 5,200 or 15,600 market pigs annually are examined. Conventional confinement facilities are typical of pork industry practice in the United States and are ...