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28篇 您的检索式:作者名="QIU Jianjun"
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1Cardiotoxicity of 5-fluorouracil and capecitabine in Chinese patients: a prospective study显示文摘Background:5-Fluorouracil(5-FU)and capecitabine-associated cardiotoxicity ranging from asymptomatic electro-cardiography(ECG)abnormalities to severe myocardial infarction has been reported in a number of studies,but such cardiotoxicity in Chinese patients with malignant diseases has not been investigated to date.In the present study,we aimed to prospectively evaluate the incidence rates and clinical manifestations of 5-FU-and capecitabine-associated cardiotoxicity in cancer patients recruited from multiple centers in China.Methods:Among the 527 patients who completed the study,196 received 5-FU-based chemotherapy and 331 received capecitabine-based chemotherapy as either first-line or adjuvant therapy.Adverse events were reported during the treatment and up to 28 days of follow-up.Outcome measures included ECG,myocardial enzymes,cardiac troponin,brain natriuretic peptide and echocardiography.Univariate analysis and logistic regression were performed for subgroup analysis and identification of significant independent variables that are associated with cardiotoxicity of both agents.Results:In total,161 of 527 patients(30.6%)experienced cardiotoxicity.The incidence rate of cardiotoxicity was 33.8%(112/331)in the capecitabine group,which was significantly higher than the rate of 25%(49/196)in the 5-FU group(P=0.0042).110/527 patients(20.9%)suffered arrhythmia,105/527(19.9%)developed ischemic changes,while only 20/527 patients(3.8%)presented heart failure and 6/527 patients(1.1%)had myocardial infarction.Pre-existing cardiac disease,hypertension,capecitabine-based chemotherapy and duration of treatment were identified as sig-nificant risk factors associated with cardiotoxicity.The odds ratio were 15.7(prior history of cardiac disease versus no history),1.86(capecitabine versus 5-FU),1.06(5-8 versus 1-4 chemotherapy cycles)and 1.58(hypertension versus no hypertension),respectively.Conclusions:Cardiotoxicity induced by fluoropyrimidines in the Chinese population may be underestimated in clini-cal practice.Close monitoring of patients is recommended,especially for those patients at high risk for cardiotoxicity.Possible risk factors are duration of treatment,capecitabine-based chemotherapy,pre-existing cardiac diseases and hypertension.Trial registration This study was initiated on January 22,2014 and has been retrospectively registered with the registra-tion number ChiCTR1800015434 .Jianjun Peng Chao Dong Chang Wang Weihua Li Hao Yu Min Zhang Qun Zhao Bo Zhu Jun Zhang Wenliang Li Fenghua Wang Qiong Wu Wenhao Zhou Ying Yuan Meng Qiu Gong Chen 2018Cancer Communications2018,38,1:23
2Effect of intraplaque angiogenesis to atherosclerotic rupture-prone plaque induced by high shear stress in rabbit model显示文摘Atherosclerotic prone-rupture plaque is mainly localized in the region of the entrance to the stenosiswith high shear stress and the reasons are largely unknown. Our hypothesis is that such a distributionof cells in atherosclerotic plaque may depend on the angiogenesis. Silastic collars inducedregions of high shear stress (20.6865.27 dynes/cm2) in the upstream flow and low shear stress(12.2561.28 dynes/cm2) in the downstream flow in carotid arteries. Compared with the low shearstress region, plaques in the high shear stress region showed more intraplaque haemorrhaging,less collagen and higher apoptotic rates of vascular smooth muscle cells;endothelial cells (ECs) inthe high shear stress region were characterized with integrity and high endothelial nitric oxidesynthase (eNOS) expression (1570.36345.5% vs 172.9649.9%). The number of intraplaque microvesselsis very high in the high shear stress region (1561.8 n/mm2 vs 3.560.4 n/mm2), and themicrovessels in the plaque show ECs were abnormal, with membrane blebs, intracytoplasmic vacuolesand leukocyte infiltration. Our current study reveals that the integrity of the endothelium andthe vulnerability of atherosclerotic plaques are simultaneously localized in high shear stress regions,and we provide evidence for the first time that microvessels in the intraplaque maybe responsiblefor rupture-prone plaque formation in the high shear stress region.Juhui Qiu Daoxi Lei Jianjun Hu Tieying Yin Kang Zhang Donghong Yu Guixue Wang 2017Regenerative Biomaterials2017,4,4:12
3Investigation on MoS_2 and Graphite Coatings and Their Effects on the Tribological Properties of the Radial Spherical Plain Bearings显示文摘With constant enlargement of the application areas of the spherical plain bearings,higher quality lubrication of the bearings is required.To solve the lubricating problems of spherical plain bearings under high temperature,high vacuum,high speed,heavy loads and strong oxidation conditions,it is urgent for us to develop more excellent self-lubricating technologies.In this paper,the bonded solid lubricant coatings,which use inorganic phosphate as the binder,the mixture of MoS_2 and graphite with two different weight proportions as the solid lubricant,are prepared by spraying under three different spray gun pressures.The bonding strength tests on the coatings show that the best spraying pressure is 0.2 MPa and the better mixing proportion of MoS_2 to Graphite is 3:1.Then for the radial spherical plain bearings with steel/steel friction pair,after the coatings are made on the inner ring outer surfaces,the friction coefficient,the wear loss and the friction temperature of the bearings under four oscillating frequencies are investigated by a self-made tribo-tester.The test results,SEM of the worn morphologies and EDS of worn areas show that tribological properties of the bearing are obviously improved by the bonded solid lubricant coatings.When sprayed under the spray gun pressure of 0.2 MPa,the bearings have better anti-friction and anti-wear properties than those sprayed under 0.1 MPa and 0.3 MPa.Further as proved from the XPS analysis,between the coating with 3:1 mixing ratio of MoS_2 to Graphite and the coating with 1:1 ratio,the former has less oxidation occurred on the surface and therefore has better tribological characteristics than the latter.This paper provides a reference to developing a new product of the radial spherical plain bearings with high bonding strength,oxidation resistance and abrasion resistance.QIU Ming LU Jianjun LI Yingchun LV Guisen 2016Chinese Journal of Mechanical Engineering2016,29,4:8
4Adsorption-energy-based activity descriptors for electrocatalysts in energy storage applications显示文摘Energy storage technologies, such as fuel cells, ammonia production and lithium–air batteries, are important strategies for addressing the global challenge of energy crisis and environmental pollution.Taking overpotential as a direct criterion, we illustrate in theory and experiment that the adsorption energies of charged species such as Li^++e^-and H^++e^-are a central parameter to describe catalytic activities related to electricity-in/electricity-out efficiencies. The essence of catalytic activity is revealed to relate with electronic coupling between catalysts and charged species. Based on adsorption energy, some activity descriptors such as d-band center, e_g-electron number and charge-transfer capacity are further defined by electronic properties of catalysts that directly affect interaction between catalysts and charged species. The present review is helpful for understanding the catalytic mechanisms of these electrocatalytic reactions and developing accurate catalytic descriptors, which can be employed to screen high-activity catalysts in future high-throughput calculations and experiments.Youwei Wang Wujie Qiu Erhong Song Feng Gu Zhihui Zheng Xiaolin Zhao Yingqin Zhao Jianjun Liu Wenqing Zhang 2018National Science Review2018,5,3:8
5Stable isotope labelled mass spectrometry for quantification of the relative abundances for expressed proteins induced by PeaT1显示文摘The protein elicitor from the mycelium of Alternaria tenuissima has been isolated.The elicitor triggered resistance to the tobacco mosaic virus in tobacco by inducing relative oxygen species,but without causing hypersensitive necrosis.The elicitor is reported to impart resistance against Verticillium dahliae and to increase yield in cotton,but its mechanism is not yet clear.In this study,the stable isotope labelled mass spectrometry method was used to quantify the relative abundances of protein expression induced by PeaT1 in Arabidopsis.A significant difference in the relative abundances for the expression of different proteins related to metabolism,modification,regulatory,defense,stress and antioxidation was found in Arabidopsis.LI GuangYue,YANG XiuFen,ZENG HongMei,MAO JianJun,LIU Hua,ZHANG YunHua & QIU DeWen* Key Laboratory for Biological Control of the Ministry of Agriculture,Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing 100081,China 2010Science China(Life Sciences)2010,53,12:7
6Anatomical variation of infra-pyloric artery origination: A prospective multicenter observational study (IPA-Origin)显示文摘Objective: Infra-pyloric artery(IPA) is an important anatomical landmark in treatment of gastric cancer and is the key vessel for pylorus-preserving gastrectomy and subgroup of infra-pyloric lymph nodes. However, its anatomical variation is not thoroughly understood. Our study aimed to clarify the origination of the IPA.Methods: We did this prospective, multicenter, open-label, observational study at gastric surgery departments of34 hospitals in China. Gastric cancer patients aged 18 years or older and scheduled to undergo elective total or distal gastrectomy were assigned. During the surgery, IPA dissecting and exposing the origination point with photographs or video clips were required. The primary outcome was the origination of the IPA. Analysis of variance, χ~2 tests and Fisher's tests were used to analyze the differences between groups. The study is registered at Clinicaltrials.gov(No. NCT03071237).Results: Between May 8 and July 31, 2017, 429 patients were assigned for the study, and 419(97.7%) patients had the IPA dissected and recorded through photograph or video and were included in the primary outcome analysis. The median age was 62 years old, and 73.7% were male. Among the patients, 78.5% received laparoscopic surgery. Single IPA origination was identified in 398(95.0%) patients, including gastroduodenal artery(GDA) in154(36.8%) patients, anterior superior pancreaticoduodenal artery(ASPDA) in 130(31.0%) patients, and right gastroepiploic artery(RGEA) in 114(27.2%) patients. Fifteen(3.6%) patients were identified with multiple IPA and 6(1.4%) patients were identified as IPA absence. The differences in the distribution of surgical approach(P=0.003) and geographic area(P=0.030) were statistically significant. No difference was shown in sex, age,gastrectomy type, tumor location, and clinical T, N and M stage.Conclusions: Our study found that the IPA originates from GDA, ASPDA and RGEA in similar proportions.Laparoscopic surgery may be more helpful in dissection of the IPA than open surgery.Rulin Miao Jianjun Qu Zhengrong Li Daguang Wang Jiang Yu Weidong Zang Yong Li Fenglin Liu Jian Zhang Wu Song Kai Ye Su Yan Wei Wang Shuangyi Ren Lu Zang Changqing Jing Li Zhang Kuan Wang Weihua Fu Lin Fan Bin Liang Gang Zhao Jun Cai Li Yang Jiaming Zhu Jun You Kun Yang Qingxing Huang Zhaojian Niu Ning Ning Xingfeng Qiu Gang Ji Feng Liang Hua Huang Chao Gao Fei Shan Shuangxi Li Yongning Jia Lianhai Zhang Xiangji Ying Yan Zhang Zhaode Bu Xiangqian Su Gang Zhao Ziyu Li Jiafu Ji 2018Chinese Journal of Cancer Research2018,30,5:5
7Effectiveness and feasibility of transradial approaches for primary percutaneous coronary intervention in patients with acute myocardial infarction显示文摘Objective: To evaluate the efficacy and feasibility of the transradial approach for primary percutaneous coronary intervention (PCI) in patients with acute myocardial infarction(AMI). Methods: 195 patients with acute myocardial infarction were randomly divided into two groups according to the different PCI operation pathways. 105 cases were assigned to the transfemoral artery group and 90 cases to the transradial artery group. We analyzed the data from the two groups, including the achievement ratio of paracentesis, cannulation time, the time from local anesthesia to the first time balloon inflation, the time of the total procedure, achievement ratio of PCI, incidence rate of vascular complications, total duration of hospitalization, and the six-month follow-up results in both groups. Results: Our results showed that the achievement ratio of arteriopuncture, cannulation time and the time from local anesthesia to the first time balloon inflation in the transradial and transfemoral groups were 98.9% vs. 100%, 3.15 ± 1.56 min vs. 2.86 ± 0.97 min, and 18.56 ± 4.37 min vs. 17.75 ± 3.21 min, respectively. These differences between the two groups were not statistically significant. The total operating time was 29.75 ± 4.38 min for the transradial group and 27.89 ± 3.95 min(P < 0.05) for the transfemoral group. The operation achievement ratio in the transradial group was 96.7%, and 96.2% in the transfemoral group. The incidence of puncture point complications was 2.2% in the transradial group and 11.4% in the transfemoral group, and this difference was significant. The duration of hospitalization was 10.56 ± 2.85 days for the transradial group and 13.78 ± 3.15 days(P < 0.05) for the transfemoral group. At the six-month follow-up, the rate of survival without cardiac event was 86.1% vs. 86.4% respectively in the transradial and transfemoral groups(P > 0.05). Conclusion: The transradial approach was as effective as the transfemoral approach, and there were fewer puncture point complications as well as a shorter span of hospitalization in the transradial group. PCI via the transradial approach is safe, effective and feasible in patients with AMI.Lijun Gan Qingxian Li Rong Liu Yuxin Zhao Jianjun Qiu Yuhua Liao 2009Journal of Nanjing Medical University2009,23,4:3
8Analysis of Vitamin P Content and Inheritance Models in Eggplant显示文摘The eggplant(Solanum melongena L.)is rich in vitamin P(also known as rutin),which is beneficial for humans.In this study,the vitamin P contents of 53 eggplant lines were measured via UV spectrophotometry.The results showed that the vitamin P content differed significantly among the eggplant lines and the actual contents of vitamin P in fresh fruit pulp and fresh peel were 0.18–0.82mg·g^−1 and 0.42–2.32mg·g^−1,respectively.Furthermore,themixed major gene and polygene inheritance modelmethod was used for the inheritance analysis of the vitamin P content in F2 populations of three hybridization combinations.Inheritance analysis demonstrated that the vitamin P content of these eggplant lines was a quantitative trait.One or two major genes were the contributor,and the genetic effect was an additive-dominance effect.The high vitamin P content trait was regulated by the main gene and followed an additive effect.The heritability of the major genes controlling the high vitamin P content was low,while the heritability of the major gene that controls the low vitamin P content trait was high.These results provide a theoretical basis for the breeding of eggplants with high vitamin P content.Riyue Dong Bingwei Yu Shuangshuang Yan Zhengkun Qiu Jianjun Lei Changming Chen Ye Li Bihao Cao 2020Horticultural Plant Journal2020,6,4:3
95-氟尿嘧啶和卡培他滨对中国患者的心脏毒性:一项前瞻性研究显示文摘背景与目的已有许多研究报道5-氟尿嘧啶(5-Fluorouracil,5-FU)和卡培他滨相关的心脏毒性,严重程度从无症状心电图(electrocardiography,ECG)异常到严重心肌梗塞而不同。目前为止,对中国恶性肿瘤患者的这种心脏毒性尚无研究。本研究旨在前瞻性地对多个中心招募的癌症患者进行5-FU和卡培他滨相关心脏毒性的发生率和临床表现进行评估。方法在完成研究的527例患者中,196例接受基于5-FU的化疗,331例接受基于卡培他滨的化疗并以其为一线或辅助治疗。在治疗期间和长达28 d的随访期间对所发生的不良反应进行记录。疗效测量指标包括心电图、心肌酶、心肌肌钙蛋白、脑钠肽和超声心动图。使用单因素分析和logistic回归方法进行亚组分析和鉴定与两种药物的心脏毒性相关的显著性独立变量。结果 527例患者中有161例(30.6%)出现心脏毒性。卡培他滨组的心脏毒性发生率为33.8%(112/331),显著高于5-FU组25%(49/196)的发生率(P=0.0042)。110/527患者(20.9%)发生心律失常,105/527(19.9%)发生缺血性改变,而只有20/527患者(3.8%)出现心力衰竭,6/527患者(1.1%)出现心肌梗塞。既往的心脏病、高血压、卡培他滨为基础的化疗和治疗时间被确定为与心脏毒性相关的显著风险因素。优势比分别为15.7(心脏病史vs.无病史)、1.86(卡培他滨vs. 5-FU)、1.06(5–8个化疗周期vs. 1–4个化疗周期)和1.58(高血压vs.无高血压)。结论氟嘧啶类药物在中国人群中引起的心脏毒性可能在临床实践中被低估。建议密切监测患者,尤其是对心脏毒性高风险的患者。可能的风险因素包括治疗持续时间、基于卡培他滨的化疗、既往心脏病史和高血压史。Jianjun Peng Chao Dong Chang Wang Weihua Li Hao Yu Min Zhang Qun Zhao Bo Zhu Jun Zhang Wenliang Li Fenghua Wang Qiong Wu Wenhao Zhou Ying Yuan Meng Qiu Gong Chen 2018癌症2018,37,10:3
10Almost sure central limit theorems for random functions显示文摘Let {Xn,-∞< n <∞} be a sequence of independent identically distributed be a random function such that Tn = ASn+ Rn,where supnE|Rn|<∞ and Rn = o(√n)a.s.,or Rn = O(n1/2-2γ) a.s.,0 <γ< 1/8.In this paper,we prove the almost sure central limit theorem (ASCLT) and the function-typed almost sure central limit theorem (FASCLT) for the random function Tn.As a consequence,it can be shown that ASCLT and FASCLT also hold for U-statistics,Von-Mises statistics,linear processes,moving average processes,error variance estimates in linear models,power sums,product-limit estimators of a continuous distribution,product-limit estimators of a quantile function,etc.LU Chuanrong, QIU Jin & XU Jianjun School of Mathematics and Statistics, Zhejiang University of Finance and Economics, Hangzhou 310018, China Department of Mathematics, Zhejiang University, Hangzhou 310028, China 2006Science China Mathematics2006,49,12:2
11Effect of tetramethylpyrazine on the spatial learning and memory function of rats after focal cerebral ischemia显示文摘BACKGROUND: Tetramethylpyrazine (TMP) presents the effect of anti-platelet aggregation, reduces arterial resistance, increases cerebral blood flow, and improves microcirculation. OBJECTIVE: To observe the effects of TMP on the learning and memory abilities and the number of neurons in cortex and hippocampus after focal cerebral ischemia in rats DESIGN: A randomized controlled trial. SETTING: Department of Human Anatomy and Histological Embryology, School of Medicine, Xi’an Jiaotong University. MATERIALS: Fifty adult male Sprague-Dawley rats, weighing 250-300 g were supplied by the Experimental Animal Center, School of Medicine, Xi’an Jiaotong University. TMP was purchased from Wuxi Seventh Pharmaceutical Co.Ltd (Lot Number: 2004051106, Specification: 2 mL/piece). METHODS: The experiments were carried out in School of Medicine of Xi’an Jiaotong University from June 2004 to May 2005. The 50 rats were randomly divided into five groups according to the random number table method: sham-operated group, cerebral ischemia control group, low-dose TMP group, middle-dose TMP group and high-dose TMP group, 10 rats in each group. Rats in the TMP groups were immediately treated with intraperitoneal injection of TMP of 40, 80 and 120 mg/kg respectively, and those in the sham-operated group and cerebral ischemia control group were injected intraperitoneally by isovolume saline, once a day for 14 days successively. On the 15th day, the spatial learning and memory abilities of the rats were assessed with the Morris water maze test, and then the changes of neuron numbers in cortex and hippocampus were observed by Nissl staining of brain sections. MAIN OUTCOME MEASURES: The results of Morris water maze test and the changes of neuron numbers in cortex and hippocampus by Nissl staining of brain sections were observed. RESULTS: Finally 39 rats were involved in the analysis of results, and the other 11 died of excessive anesthesia or failure in model establishment. ① The rats in the cerebral ischemia control group manifested obvious spatial cognitive deficits in the place navigation trial and spatial probe trial. The mean values of escape latency in the sham-operated group, low, middle and high-dose TMP groups were obviously shorter than that in the cerebral ischemia control group [(23.92±2.21), (41.84±3.74), (39.50±3.80), (31.38±3.72), (61.60±3.61) s, P < 0.05-0.01]. In the spatial probe trial, significant differences in the percentage of time spending in the former platform quadrant and frequency of crossing the former platform site in the sham-operated group, lose, middle and high-dose TMP groups were obviously higher or more than those in the cerebral ischemia control group [(36.27±3.42) %, (35.84±2.54)%, (38.43±3.08)%, (36.51±1.96)%, (22.24±3.46)%; (11±1), (10±1), (8±1), (8±1), (4±1) times, P < 0.01]. ② In the morphological observation, the numbers of neurons in ipsilateral (left) parietal cortex in the sham-operated group, low, middle and high-dose TMP groups were obviously more than that in the cerebral ischemia control group [(98±8), (65±5), (53±6), (57±6), (37±6)/0.625 mm2, P < 0.01], but the number of neurons in left hippocampus had no obvious differences among the groups (P > 0.05). CONCLUSION: TMP can improve obviously the spatial learning and memory function after permanent focal cerebral ischemia in rats, and the neuroprotective role of the drug in cortex may be involved in its mechanism.Jianjun Zhao Yong Liu Xinlin Chen Jianxin Liu Yingfang Tian Pengbo Zhang Qianyan Kang Fen Qiu 2006Neural Regeneration Research2006,1,2:2
12Mineralized collagen-modified PMMA cement enhances bone integration and reduces fibrous encapsulation in the treatment of lumbar degenerative disc disease显示文摘As a minimally invasive surgery,percutaneous cement discoplasty(PCD)is now contemplated to treat lumbar disc degeneration disease in elder population.Here,we investigated whether the osteogenic mineralized collagen(MC)modified polymethylmethacrylate(PMMA)cement could be a suitable material in PCD surgery.Injectability,hydrophilicity and mechanical properties of the MC-modified PMMA(PMMA-MC)was characterized.The introduction of MC did not change the application and setting time of PMMA and was easy to be handled in minimally invasive operation.Hydrophilicity of PMMA-MC was greatly improved and its elastic modulus was tailored to complement mechanical performance of bone under dynamic stress.Then,PCD surgery in a goat model with induced disc degeneration was performed with implantation of PMMA-MC or PMMA.Three months after implantation,micro-computed tomography analysis revealed a 36.4%higher circumferential contact index between PMMA-MC and bone,as compared to PMMA alone.Histological staining confirmed that the surface of PMMA-MC was in direct contact with new bone,while the PMMA was covered by fibrous tissue.The observed gathering of macrophages around the implant was suspected to be the cause of fibrous encapsulation.Therefore,the interactions of PMMA and PMMA-MC with macrophages were investigated in vitro.We discovered that the addition of MC could hinder the proliferation and fusion of the macrophages.Moreover,expressions of fibroblaststimulating growth factors,insulin-like growth factor,basic fibroblast growth factor and tumor necrosis factor-b were significantly down-regulated in the macrophages cocultured with PMMA-MC.Together,the promoted osteointegration and reduced fibrous tissue formation observed with PMMA-MC material makes it a promising candidate for PCD surgery.Long Yang Jianjun Kong Zhiye Qiu Tieliang Shang Siyu Chen Rui Zhao Maria Grazia Raucci Xiao Yang Zhanyong Wu 2020Regenerative Biomaterials2020,7,2:1
13Reduced methane emissions from large-scale changes in water management of China's rice paddies during 1980-2000显示文摘LI CHANGSHENG QIU JIANJUN STEVE FROLKING 2002Geophysical Research Letters2002,29,20:1
14Modelling impacts of alternative farming management practices on greenhouse gas emissions from a winter wheat–maize rotation system in China显示文摘Hu Li Jianjun Qiu Ligang Wang Huajun Tang Changsheng Li Eric Van Ranst 2009Agriculture Ecosystems and Environment2009,,1:1
15Expression of an elicitor-encoding gene from Magnaporthe grisea enhances resistance against blast disease in transgenic rice显示文摘Qiu Dewen Mao Jianjun Yang Xiufen 2009Plant Cell Reports2009,28,6:1
16Modeling soil organic carbon dynamics in the major agricultural regions of China 显示文摘WANG Ligang QIU Jianjun TANG Huajun 2008Geoderma2008,147,:1
17Numerical analysis of self-lubricating radial spherical plain bearings and investigations on fa-tigue damage mechanisms of the liner显示文摘LU Jianjun QIU Ming LI Yingchun 2016Tribology International2016,96,:1
18Antioxidant treatment with quercetin ameliorates erectile dysfunction in streptozotocin-induced diabetic rats显示文摘Wei Zhang Yong Wang Zengyue Yang Jianxin Qiu Jianjun Ma Zhiguang Zhao Tingyi Bao 2011Journal of Bioscience and Bioengineering2011,,3:1
19Estimations of soil organic carbon storage in cropland of China based on DNDC model显示文摘Huajun Tang Jianjun Qiu Eric Van Ranst Changsheng Li 2005Geoderma2005,,1:1
20Modelling soil organic carbon dynamics in the major agricultural regions of China显示文摘Wang Ligang Qiu Jianjun Tang Huajun 2008Geoderma2008,147,:1
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