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| 1 | 农田土壤有机碳含量对作物产量影响的模拟研究显示文摘【目的】探求土壤有机碳含量对作物产量的影响,以期为保障国家粮食安全和耕地持续利用与管理提供决策依据。【方法】利用农田生态系统生物地球化学模型DNDC,针对中国东北、华北、西北、中南、华东和西南6个典型农业区域,每个区域选择各自典型的种植模式和现行的农田管理措施,在各自特定的土壤和气候条件下,输入并运行模型,模拟考察在其它投入条件不变的情况下,改变土壤有机碳本底值对作物产量的影响。【结果】当土壤有机碳含量(SOC)增加1g C.kg-1,东北地区玉米产量可增加176kg·hm-2;华北地区夏玉米与冬小麦轮作,产量可增加约454kg·hm-2;西北地区春玉米产量约可增加328kg·hm-2;中南地区单季水稻产量可增加约185kg·hm-2;华东地区双季稻产量可增加约266kg·hm-2;西南地区水稻与冬小麦轮作产量可增加约229kg·hm-2。【结论】在其它投入既定的条件下,全国各地区均存在通过提高耕地土壤有机碳含量来增加作物产量的潜力。保持较高水平的土壤有机碳含量对节本增效具有十分明显的作用。 | 邱建军 王立刚 李虎 唐华俊 Changsheng Li Eric Van Ranst | 2009 | 中国农业科学2009,42,1: | 68 |
| 2 | Molecular identification of hepatitis B virus genotypes/subgenotypes:Revised classification hurdles and updated resolutions显示文摘The clinical course of infections with the hepatitis B virus(HBV)substantially varies between individuals,as a consequence of a complex interplay between viral,host,environmental and other factors.Due to the high genetic variability of HBV,the virus can be categorized into different HBV genotypes and subgenotypes,which considerably differ with respect to geographical distribution,transmission routes,disease progression,responses to antiviral therapy or vaccination,and clinical outcome measures such as cirrhosis or hepatocellular carcinoma.However,HBV(sub)genotyping has caused some controversies in the past due to misclassifications and incorrect interpretations of different genotyping methods.Thus,an accurate,holistic and dynamic classification system is essential.In this review article,we aimed at highlighting potential pitfalls in genetic and phylogenetic analyses of HBV and suggest novel terms for HBV classification.Analyzing fulllength genome sequences when classifying genotypes and subgenotypes is the foremost prerequisite of this classification system.Careful attention must be paid to all aspects of phylogenetic analysis,such as bootstrapping values and meeting the necessary thresholds for(sub)genotyping.Quasi-subgenotype refers to subgenotypes that were incorrectly suggested to be novel.As many of these strains were misclassified due to genetic differences resulting from recombination,we propose the term'recombino-subgenotype'.Moreover,immigration is an important confounding facet of global HBV distribution and substantially changes the geographic pattern of HBV(sub)genotypes.We therefore suggest the term'immigro-subgenotype'to distinguish exotic(sub)genotypes from native ones.We are strongly convinced that applying these two proposed terms in HBV classification will help harmonize this rapidly progressing field and allow for improved prophylaxis,diagnosis and treatment. | Mahmoud Reza Pourkarim Samad Amini-Bavil-Olyaee Fuat Kurbanov Marc Van Ranst Frank Tacke | 2014 | World Journal of Gastroenterology2014,20,23: | 20 |
| 3 | Modeling Soil Organic Carbon Storage and Its Dynamics in Croplands of China显示文摘Soil organic carbon (SOC) is one of the centre issues related to not only soil fertility but also environmental safety. Assessing SOC dynamics in croplands has been a challenge in China for long due to the lack of appropriate methodologies and data sources. As an alternative approach for studying SOC dynamics, process-based models are adopted to meet the needs. In this paper, a process-based model, DeNitrification-DeComposition (DNDC), was applied to quantify the SOC storage and the spatial distribution in croplands of China in 2003, with the support of a newly compiled county-level soil/ climate/land use database. The simulated results showed that the total SOC storage in the top layer (0-30 cm) of the 1.18 × 108 ha croplands of China is 4.7-5.2 Pg C in 2003 with an average value of 4.95 Pg C. The SOC storage in the northeastern provinces (1.3 Pg C) accounts for about 1/4 of the whole national totals due to their dominantly fertile soils with high organic matter content. SOC density ranges from 3.9 to 4.4 kg C m-2, with an average of 4.2 kg C m-2, a level is much lower than the world average level. The model results also indicated that high rates of SOC losses occurred in the croplands with the most common cropping patterns in China as like single soybean > maize > paddy > cotton > winter wheat and corn rotation. The results reported in this paper showed that there was still a great potential for improving SOC status in most croplands of China by adopting proper farming practices and land-use pattern. Therefore, long-term policy to protect SOC is urgently needed. | TANG Hua-jun QIU Jian-jun WANG Li-gang LI Hu LI Chang-sheng Eric van Ranst | 2010 | Agricultural Sciences in China2010,9,5: | 13 |
| 4 | Temperature and Precipitation Suitability Evaluation for the Winter Wheat and Summer Maize Cropping System in the Huang-Huai-Hai Plain of China显示文摘The Huang-Huai-Hai Plain is the most important winter wheat and maize production region in China.In response to the increasing population pressure,the Chinese authorities strongly invested in improving the irrigation systems and increasing ground and surface water exploitation within the plain to increase the crop productivity.This resulted in a reduction of water resource availability and in turn indirectly affected the suitability of various agricultural ecosystems in the plain.The main purpose of this study was to review the suitability of temperature and precipitation for the winter wheat and summer maize cropping system in the Huang-Huai-Hai Plain,in order to provide a preliminary irrigation scheme.This analysis provides a first attempt to enhance the water resource management as well as to increase the water use efficiency.For this aim,a GIS-based multicriteria analysis procedure has been developed consisting of(1) definition of objectives(evaluated entities) and database building;(2) definition of evaluation criteria;(3) standardization of the criteria;(4) combination of the criteria;(5) classification of the objectives;and(6) integration of the objectives.The land suitability classification maps were transformed into maps of required irrigation amounts for each growing stage of the winter wheat and summer maize cropping system.The study also exemplified the limitations and proposed future research activities that will improve the detail and accuracy of the evaluation results. | Nguyen Thanh Tuan QIU Jian-jun Ann Verdoodt LI Hu Eric Van Ranst | 2011 | Agricultural Sciences in China2011,10,2: | 12 |
| 5 | Modeling the Impacts of Soil Organic Carbon Content of Croplands on Crop Yields in China显示文摘This study quantified the impacts of soil organic carbon(SOC) content on the grain yield of crops using a biogeochemical model(DNDC,denitrification-decomposition).Data on climate,soil properties,and farming management regimes of cropping systems were collected from six typical agricultural zones(northeast,north,northwest,mid-south,east and southwest regions of China,respectively) and integrated into a GIS database to support the model runs.According to the model,if the initial SOC content in the cropland was increased by 1 g C kg-1,the crop yield may be increased by 176 kg ha-1 for maize in the northeast region,454 kg ha-1 for a maize-wheat rotation in the north region,328 kg ha-1 for maize in the northwest region,185 kg ha-1 for single-rice in the mid-south region,266 kg ha-1 for double-rice in east region,and 229 kg ha-1 for rice and wheat rotation in southwest region.There is a great potential for enhancing the crop yield by improving the SOC content in each region of China. | QIU Jian-jun WANG Li-gang LI HU TANG Hua-jun LI Chang-sheng Eric Van Ranst | 2009 | Agricultural Sciences in China2009,8,4: | 6 |
| 6 | Early prediction of major depression in chronic hepatitis C patients during peg-interferon α-2b treatment by assessment of vegetative-depressive symptoms after four weeks显示文摘AIM: To study the predictive value of the vegetative- depressive symptoms of the Zung Depression Rating Scale for the occurrence of depression during treatment with peg-interferon α-2b of chronic hepatitis C (CHC) patients. METHODS: The predictive value of vegetative- depressive symptoms at 4 wk of treatment for the occurrence of a subsequent diagnosis of major depressive disorder (MDD) was studied in CHC patients infected after substance use in a prospective, multi- center treatment trial in Belgium. The presence of vegetative-depressive symptoms was assessed using the Zung Scale before and 4 wk after the start of antiviral treatment. RESULTS: Out of 49 eligible patients, 19 (39%) developed MDD. The area under the ROC curve of the vegetative Zung subscale was 0.73, P = 0.004. The sensitivity at a cut-point of > 15/35 was 95% (95% CI: 74-100). The positive predictive value equalled 44% (95% CI: 29-60). CONCLUSION: In this group of Belgian CHC patients infected after substance use, antiviral treatment caused a considerable risk of depression. Seven vegetativedepressive symptoms of the Zung scale at wk 4 of treatment predicted 95% of all emerging depressions, at a price of 56% false positive test results. | Geert Robaeys Jozef De Bie Marieke C Wichers Liesbeth Bruckers Frederik Nevens Peter Michielsen Marc Van Ranst Frank Buntinx | 2007 | World Journal of Gastroenterology2007,13,43: | 4 |
| 7 | Impact of enclosure management on soil properties and microbial biomass in a restored semi-arid rangeland, Kenya显示文摘Rangeland degradation is a serious problem throughout sub-Saharan Africa and its restoration is a challenge for the management of arid and semi-arid areas. In Lake Baringo Basin of Kenya, communities and individual farmers are restoring indigenous vegetation inside enclosures in an effort to combat severe land degradation and address their livelihood problems. This study evaluated the impact of enclosure management on soil properties and microbial biomass, being key indicators of soil ecosystem health. Six reseeded communal enclosures using soil embankments as water-harvesting structures and strictly regulated access were selected, varying in age from 13 to 23 years. In six private enclosures, ranging from 3 to 17 years in age, individual farmers emulated the communal enclosure strategy and restored areas for their exclusive use. Significant decreases in bulk density, and increases in the soil organic carbon, total nitrogen and microbial biomass contents and stocks were found in the enclosures as compared with the degraded open rangeland. In the private enclosures, the impact of rehabilitation on the soil quality was variable, and soil quality was in general lower than that obtained under communal management. The significant increase of absolute stocks of carbon, nitrogen and microbial biomass compared to the degraded open rangeland indicates the potential for the restoration of soil quality through range rehabilitation. Over-sowing with indigenous legume fodder species could improve total nitrogen content in the soil and nutritional value of the pastures as well. | Stephen M MUREITHI Ann VERDOODT Charles KK GACHENE Jesse T NJOKA Vivian O WASONGA Stefaan De NEVE Elizabeth MEYERHOFF Eric Van RANST | 2014 | Journal of Arid Land2014,6,5: | 3 |
| 8 | Time-Series Modeling and Prediction of Global Monthly Absolute Temperature for Environmental Decision Making显示文摘概括的 A,结构,时间系列建模框架被开发分析绝对表面温度的每月的记录,最重要的环境参数之一,使用 deterministicstochastic 联合了(DSC ) 来临。尽管框架的发展基于全球数据集的变化模式的描述,方法论能被用于任何每月绝对的温度记录。确定的进程被用来描绘全球趋势的变化模式和温度信号的周期的摆动,分别地,当随机的进程被采用说明在温度信号的任何留下的模式时,包含多项式函数和 Fourier 方法,包含综合移动一般水准( SARIMA )建模的季节的 autoregressive 。每月全球的表面温度的预言在用 DSC 模型的第 21 世纪的第二十年期间证明全球温度将继续多半升起在两次过去的 150 年的平均的率。DSC 模型系统地执行很好对的预言精确性表演的评估选择了另外的作者的模型,当结合时,建议 DSC 当模特儿另外的 ecoenvironmental 模型,能被用作一个补加的工具为短期(10 年) 环境计划和决策。 | YE Liming YANG Guixia Eric VAN RANST TANG Huajun | 2013 | Advances in Atmospheric Sciences2013,30,2: | 3 |
| 9 | 那他珠单抗治疗克隆病后导致进行性多灶性脑白质病 | Van Assche G. Van Ranst M. Sciot R. P. Rutgeerts 郭俊 | 2005 | 世界核心医学期刊文摘(神经病学分册)2005,0,12: | 2 |
| 10 | Production scenarios and the effect of soil degradation on long-term food security in China显示文摘 | Liming Ye Eric Van Ranst | 2009 | Global Environmental Change2009,,4: | 2 |
| 11 | Phylogenetic analysis of hepatitis B virus full-length genomes reveals evidence for a large nosocomial outbreak in Belgium显示文摘 | Mahmoud Reza Pourkarim Jannick Verbeeck Mustafizur Rahman Samad Amini-Bavil-Olyaee An-Marie Forier Philippe Lemey Piet Maes Marc Van Ranst | 2009 | Journal of Clinical Virology2009,,1: | 2 |
| 12 | Recent approaches in hantavirus vaccine development显示文摘 | Maes P Clement J Van Ranst M | | 0,,01: | 1 |
| 13 | Simian rotaviruses possess divergent gene constellations that originated from interspecies transmission and reas- sortment 显示文摘 | Matthijnssens J Taraporewala Z F Yang H Rao S Yuan L Cao D Hoshino Y Mertens P P Carner G R McNeal M Sestak K Van Ranst M Patton J T | 2010 | J Virol2010,84,4: | 1 |
| 14 | Qualitative land suitability assessment for pyrethrum cultivation in west Kenya based upon com-puter-captured expert knowledge and GIS显示文摘 | Wandahwa P van Ranst E | 1996 | Agriculture Ecosystem and Environment1996,56,: | 1 |
| 15 | Dissolution char acter isticsofhectorite ininorganic acids显示文摘 | Rompaey K V Ranst E V Coninck F D | 2002 | Applied Clay Sci ence2002,21,5: | 1 |
| 16 | Assessing water consumption of banana :Traditional versus modelling approach 显示文摘 | VAN VOSSELENA A VERPLANCKEA H VAN RANST E | | Agricultural water management0,74,: | 1 |
| 17 | Molecular characterization of hepatitis B virus (HBV) strains circulating in the northern coast of the Persian Gulf and its comparison with worldwide distribution of HBV subgenotype D1显示文摘 | Mahmoud Reza Pourkarim Valentijn Vergote Samad Amini‐Bavil‐Olyaee Zohre Sharifi Steven Sijmons Philippe Lemey Piet Maes Seyed Moayed Alavian Marc Van Ranst | 2014 | Virol2014,,5: | 1 |
| 18 | Progressive multifocal leukoencephalopathy after natalizumab therapy for Crohn's disease显示文摘 | VAN ASSCHE G VAN RANST M SCIOT R | 2005 | N Engl J Med2005,353,4: | 1 |
| 19 | Application of fuzzy logic to land suitability for rubber production in peninsular Thailand显示文摘 | Van Ranst E Tang H Groenemans R | 1996 | Geoderma1996,70,: | 1 |
| 20 | Outcome of pulmonary re- habilitation in COPD patients with severely impaired health status 显示文摘 | Van Ranst D Otten H Meijer JW | 2011 | Int J Chron Obstruct Pulmon Dis2011,6,: | 1 |