Cropland expansion outpaces agricultural and biofuel policies in the United States

TJ Lark, JM Salmon, HK Gibbs - Environmental Research Letters, 2015 - iopscience.iop.org
Cultivation of corn and soybeans in the United States reached record high levels following
the biofuels boom of the late 2000s. Debate exists about whether the expansion of these …

Grassland-to-cropland conversion increased soil, nutrient, and carbon losses in the US Midwest between 2008 and 2016

X Zhang, TJ Lark, CM Clark, Y Yuan… - Environmental …, 2021 - iopscience.iop.org
After decades of declining cropland area, the United States (US) experienced a reversal in
land use/land cover change in recent years, with substantial grassland conversion to …

Environmental outcomes of the US renewable fuel standard

TJ Lark, NP Hendricks, A Smith… - Proceedings of the …, 2022 - National Acad Sciences
The Renewable Fuel Standard (RFS) specifies the use of biofuels in the United States and
thereby guides nearly half of all global biofuel production, yet outcomes of this keystone …

[PDF][PDF] Greenhouse gas implications of land use change and land conversion to biofuel crops

NH Ravindranath, R Mauvie, J Fargione, JG Canadell… - 2009 - ecommons.cornell.edu
Scientific Committee on Problems of the Environment grasslands, as well as by returning
fallow or abandoned croplands to production. Indirect LUC can occur when land currently …

Recent land use change in the Western Corn Belt threatens grasslands and wetlands

CK Wright, MC Wimberly - Proceedings of the National …, 2013 - National Acad Sciences
In the US Corn Belt, a recent doubling in commodity prices has created incentives for
landowners to convert grassland to corn and soybean cropping. Here, we use land cover …

Carbon emissions from cropland expansion in the United States

SA Spawn, TJ Lark, HK Gibbs - Environmental Research Letters, 2019 - iopscience.iop.org
After decades of decline, croplands are once again expanding across the United States. A
recent spatially explicit analysis mapped nearly three million hectares of US cropland …

[HTML][HTML] Cropland expansion in the United States produces marginal yields at high costs to wildlife

TJ Lark, SA Spawn, M Bougie, HK Gibbs - Nature communications, 2020 - nature.com
Recent expansion of croplands in the United States has caused widespread conversion of
grasslands and other ecosystems with largely unknown consequences for agricultural …

Historical US cropland areas and the potential for bioenergy production on abandoned croplands

A Zumkehr, JE Campbell - Environmental science & technology, 2013 - ACS Publications
Agriculture is historically a dominant form of global environmental degradation, and the
potential for increased future degradation may be driven by growing demand for food and …

Changes in cropland area in the United States and the role of CRP

NP Hendricks, E Er - Food Policy, 2018 - Elsevier
An understanding of the main drivers of land-use change is critical for policy
recommendations that aim to meet the challenge of food and environmental security over …

Land use change in a biofuels hotspot: The case of Iowa, USA

S Secchi, L Kurkalova, PW Gassman, C Hart - Biomass and Bioenergy, 2011 - Elsevier
This study looks at the land use impact of the biofuels expansion on both the intensive and
extensive margin, and its environmental consequences. We link economic, geographical …