期刊
JOURNAL OF LAND USE SCIENCE
卷 13, 期 1-2, 页码 32-58出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/1747423X.2017.1413433
关键词
U.S. northern prairie; crop proportion change; land use change; web of drivers; corn; soybeans
资金
- U.S. Geological Survey's Climate and Land Use Change, Climate and Land Use Research and Development Program
Grassland to cropland conversion in the northern prairie of the United States has been a topic of recent land use change studies. Within this.' region more corn and soybeans are grown now (2017) than in the past but most studies to date have not examined multi-decadal trends and the synergistic web of socio-ecological driving forces involved, opting instead for short-term analyses and easily targeted agents of change This paper examines the coalescing of biophysical and socioeconomic driving forces that have brought change to the agricultural landscape of this region between 1980 and 2013. While land conversion has occurred, most of the region's cropland in 2013 had been previously cropped by the early 1980s. Furthermore, the agricultural conditions in which crops were grown during those three decades have changed considerably because of non-biophysical alterations to production practices and changing agricultural markets. Findings revealed that human drivers played more of a role in crop change than biophysical changes, that blending quantitative and qualitative methods to tell a more complete story of crop change in this region was difficult because of the synergistic characteristics of the drivers involved, and that more research is needed to understand how farmers make crop choice decisions.
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