Soil health changes from grassland to row crops conversion on Natric Aridisols in South Dakota, USA

2021 ◽  
pp. e00425
Author(s):  
Chris Graham ◽  
Harold van Es ◽  
Debankur Sanyal
age ◽  
2021 ◽  
Vol 4 (2) ◽  
Author(s):  
Casey J. Shawver ◽  
James A. Ippolito ◽  
Joe E. Brummer ◽  
Jason K. Ahola ◽  
Ryan D. Rhoades

Geoderma ◽  
2020 ◽  
Vol 376 ◽  
pp. 114539
Author(s):  
Blessing Nyamasoka-Magonziwa ◽  
Steven J. Vanek ◽  
John O. Ojiem ◽  
Steven J. Fonte

2009 ◽  
Vol 87 (10) ◽  
pp. 876-885 ◽  
Author(s):  
T. W. Grovenburg ◽  
J. A. Jenks ◽  
R. W. Klaver ◽  
C. C. Swanson ◽  
C. N. Jacques ◽  
...  

Knowledge of movement patterns of white-tailed deer ( Odocoileus virginianus (Zimmermann, 1780)) inhabiting landscapes intensively modified by agricultural systems is important to the present and future understanding of deer ecology. Little information exists regarding daily and seasonal movements of white-tailed deer in north-central South Dakota. Therefore, our goal was to determine movement patterns and home-range use of female white-tailed deer in north-central South Dakota. From January 2005 to January 2007, 29 adult (>18 months) and 13 yearling (8–18 months) white-tailed deer were monitored for movement using radiotelemetry. We collected 2822 locations, calculated 76 home ranges, and documented 50 seasonal movements. Mean migration distance between summer and winter home ranges was 19.4 km (SE = 2.0 km). Mean 95% home-range size was 10.2 km2 (SE = 1.2 km2, n = 27) during winter and 9.2 km2 (SE = 1.0 km2, n = 49) during summer. Ambient temperature appeared to be a primary cause of seasonal migration. Additionally, movements exhibited by white-tailed deer in north-central South Dakota were influenced by a highly fragmented landscape dominated by row crops and pasture or grassland.


2017 ◽  
Vol 81 (6) ◽  
pp. 1486-1495 ◽  
Author(s):  
Eugenia M. Pena-Yewtukhiw ◽  
Emily Leslie Romano ◽  
Nicole Lynn Waterland ◽  
John H. Grove

2020 ◽  
Vol 12 (14) ◽  
pp. 5695
Author(s):  
Márcio R. Nunes ◽  
Harold M. van Es ◽  
Kristen S. Veum ◽  
Joseph P. Amsili ◽  
Douglas L. Karlen

Soil organic carbon (SOC) influences several soil functions, making it one of the most important soil health indicators. Its quantity is determined by anthropogenic and inherent factors that must be understood to improve SOC management and interpretation. Topsoil (≤15 cm) SOC response to tillage depth and intensity, cover crops, stover removal, manure addition, and various cropping systems was assessed using 7610 observations from eight U.S. regions. Overall, including cover crops, reducing tillage depth and intensity increased SOC. The positive effects of cover crops were more noticeable in South Central, Northwest, and Midwest regions. Removing high rates (>65%) of crop residue decreased SOC in Midwestern and Southeastern soils. Depending on region, applying manure increased SOC by 21 to 41%, compared to non-manured soils. Diversified cropping systems (e.g., those utilizing small mixed vegetables, perennials, or dairy-based systems) had the highest topsoil SOC content, while more intensive annual row crops and large-scale single vegetable production systems, had the lowest. Among inherent factors, SOC increased as precipitation increased, but decreased as mean annual temperature increased. Texture influenced SOC, showing higher values in fine-texture than coarse-texture soils. Finally, this assessment confirmed that SOC can be a sensitive soil health indicator for evaluating conservation practices.


2009 ◽  
Vol 14 (2) ◽  
pp. 13-16
Author(s):  
Christopher R. Brigham ◽  
Jenny Walker

Abstract The AMAGuides to the Evaluation of Permanent Impairment (AMA Guides) is the most widely used basis for determining impairment and is used in state workers’ compensation systems, federal systems, automobile casualty, and personal injury, as well as by the majority of state workers’ compensation jurisdictions. Two tables summarize the edition of the AMA Guides used and provide information by state. The fifth edition (2000) is the most commonly used edition: California, Delaware, Georgia, Hawaii, Kentucky, New Hampshire, Idaho, Indiana, Iowa, Kentucky, Massachusetts, Nevada, North Dakota, Ohio, Vermont, and Washington. Eleven states use the sixth edition (2007): Alaska, Arizona, Louisiana, Mississippi, Montana, New Mexico, Oklahoma, Pennsylvania, Rhode Island, Tennessee, and Wyoming. Eight states still commonly make use of the fourth edition (1993): Alabama, Arkansas, Kansas, Maine, Maryland, South Dakota, Texas, and West Virginia. Two states use the Third Edition, Revised (1990): Colorado and Oregon. Connecticut does not stipulate which edition of the AMA Guides to use. Six states use their own state specific guidelines (Florida, Illinois, Minnesota, New York, North Carolina, and Wisconsin), and six states do not specify a specific guideline (Michigan, Missouri, Nebraska, New Jersey, South Carolina, and Virginia). Statutes may or may not specify which edition of the AMA Guides to use. Some states use their own guidelines for specific problems and use the Guides for other issues.


Sign in / Sign up

Export Citation Format

Share Document