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| 1 | Impacts of climate change on hydrology,water quality and crop productivity in the Ohio-Tennessee River Basin显示文摘Nonpoint source pollution from agriculture is the main source of nitrogen and phosphorus in the stream systems of the Corn Belt region in the Midwestern US.The eastern part of this region is comprised of the Ohio-Tennessee River Basin(OTRB),which is considered a key contributing area for water pollution and the Northern Gulf of Mexico hypoxic zone.A point of crucial importance in this basin is therefore how intensive corn-based cropping systems for food and fuel production can be sustainable and coexist with a healthy water environment,not only under existing climate but also under climate change conditions in the future.To address this issue,a OTRB integrated modeling system has been built with a greatly refined 12-digit subbasin structure based on the Soil and Water Assessment Tool(SWAT)water quality model,which is capable of estimating landscape and in-stream water and pollutant yields in response to a wide array of alternative cropping and/or management strategies and climatic conditions.The effects of three agricultural management scenarios on crop production and pollutant loads exported from the crop land of the OTRB to streams and rivers were evaluated:(1)expansion of continuous corn across the entire basin,(2)adoption of no-till on all corn and soybean fields in the region,(3)implementation of a winter cover crop within the baseline rotations.The effects of each management scenario were evaluated both for current climate and projected mid-century(2046-2065)climates from seven global circulation models(GCMs).In both present and future climates each management scenario resulted in reduced erosion and nutrient loadings to surface water bodies compared to the baseline agricultural management,with cover crops causing the highest water pollution reduction.Corn and soybean yields in the region were negligibly influenced from the agricultural management scenarios.On the other hand,both water quality and crop yield numbers under climate change deviated considerably for all seven GCMs compared to the baseline climate.Future climates from all GCMs led to decreased corn and soybean yields by up to 20%on a mean annual basis,while water quality alterations were either positive or negative depending on the GCM.The study highlights the loss of productivity in the eastern Corn Belt under climate change,the need to consider a range of GCMs when assessing impacts of climate change,and the value of SWAT as a tool to analyze the effects of climate change on parameters of interest at the basin scale. | Yiannis Panagopoulos Philip W.Gassman Raymond W.Arritt Daryl E.Herzmann Todd D.Campbell Adriana Valcu Manoj K.Jha Catherine L.Kling Raghavan Srinivasan Michael White Jeffrey G.Arnold | 2015 | International Journal of Agricultural and Biological Engineering2015，8，3： | 2 |
| 2 | Laboratory screening of the juvenile responses of grassland species to warm temperature pulses and water deficits to predict invasiveness显示文摘 | WhiteT. A. B. D.Campbell P. D.Kemp | 2001 | Functional Ecology2001，，1： | 1 |
| 3 | Sensitivity of three grassland communities to simulated extreme temperature and rainfall events显示文摘 | Todd A.White Bruce D.Campbell Peter D.Kemp Chris L.Hunt | 2001 | Global Change Biology2001，，6： | 1 |
| 4 | Identification of host‐specific colonization factors of Salmonella enterica serovar Typhimurium显示文摘 | EirwenMorgan June D.Campbell Sonya C.Rowe JennieBispham Mark P.Stevens Alison J.Bowen Paul A.Barrow Duncan J.Maskell Timothy S.Wallis | 2004 | Molecular Microbiology2004，，4： | 1 |
| 5 | A Closer Look at Discretionary Write-downs of Impairment Assets显示文摘 | Zucca L D.Campbell | | 0，，： | 1 |
| 6 | “自尊”的价值在哪里?显示文摘人们都能本能地认识到自尊在心理健康方面的重要性,因此,只要可能,我们大都会竭力保护和增强我们的自尊,这并无什么特别之处.其所以不同一般,是因为人们对自尊的关注,已经使它成为一个全社会的热门话题,至少在美国是如此;因为,在美国人看来,对自己有一个较美好的认识,乃是核心的心理源泉,一切积极、正面的结果均源于此.自尊太差的根源在于个人,由此引发出种种社会问题以及社会机能障碍,这一认识使得自尊成为数十年来社会一直都努力要加以解决的问题之一.的确,试图提高人们自我价值感的种种努力,可以说是层出不穷. | Roy F.Baumeister Jennifer D.Campbell Joachim I.Krueger Kathleen D.Vohs 邹先道 | 2005 | 科学(中文版)2005，，3： | 1 |
| 7 | Identification of host‐specific colonization factors of Salmonella enterica serovar Typhimurium显示文摘 | EirwenMorgan June D.Campbell Sonya C.Rowe JennieBispham Mark P.Stevens Alison J.Bowen Paul A.Barrow Duncan J.Maskell Timothy S.Wallis | 2004 | Molecular Microbiology2004，，4： | 1 |
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