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| 1 | Effect of Nitrogen Management on Yield and Water Use Efficiency of Rainfed Wheat and Maize in Northwest China显示文摘A field experiment with four treatments and four replicates in a randomized complete block design was conducted at the Changwu Experimental Station in Changwu County, Shaanxi Province, of Northwest China from 1998 to 2002. The local cropping sequence of wheat, wheat-beans, maize, and wheat over the 4-year period was adopted. A micro-plot study using 15N-labelled fertilizer was carried out to determine the fate of applied N fertilizer in the first year. When N fertilizer was applied wheat (years 1, 2 and 4) and maize (year 3) grain yield increased significantly (P<0.05) (>30%), with no significant yield differences in normal rainfall years (Years 1, 2 and 3) for N application at the commonly application rate and at 2/3 of this rate. Grain yield of wheat varied greatly between years, mainly due to variation in annual rainfall. Results of 15N studies on wheat showed that plants recovered 36.6%-38.4% of the N applied, the N remained in soil (0-40 cm) ranged from 29.2% to 33.6%, and unaccounted-for N was 29.5%-34.2%. The following crop (wheat) recovered 2.1%-2.8% of the residual N from N applied to the previous wheat crop with recovery generally decreasing in the subsequent three crops (beans, maize and wheat). | DANG Ting-Hui CAI Gui-Xin GUO Sheng-Li HAO Ming-De L. K. HENG | 2006 | Pedosphere2006，16，4： | 25 |
| 2 | Changes in China’s lakes: climate and human impacts显示文摘Lakes have played a critical role in providing water and ecosystem services for people and other organisms in China for millennia.However,accelerating climate change and economic boom have resulted in unprecedented changes in these valuable lakes.Using Landsat images covering the entity of the country,we explored the changes in China’s lakes and the associated driving forces over the last 30 years(i.e.mid-1980 s to 2015).We discovered that China’s lakes have changed with divergent regional trends:in the sparsely populated Tibetan Plateau,lakes are abundant and the lake area has increased dramatically from 38596 to46831 km^2(i.e.increased by 8235 km^2,or 21.3%),whereas,in the densely populated northern and eastern regions,lakes are relatively scarce and the lake area has decreased from 36659 to 33657 km^2(i.e.decreased by 3002 km^2,or 8.2%).In particular,severe lake decreases occurred in the Mongolia-Xinjiang Plateau and the Eastern Plain(-2151 km^2).Statistical analyses indicated that climate was the most important factor controlling lake changes in the Tibetan Plateau,the Yun-Gui Plateau and the Northeast Plain.However,the strength of climatic control on lake changes was low in the Eastern Plain and the Mongolia-Xinjiang Plateau,where human activities,e.g.impoldering,irrigation and mining,have caused serious impacts on lakes.Further lake changes will exacerbate regional imbalances between lake resources and population distribution,and thus may increase the risk of water-resource crises in China. | Shengli Tao Jingyun Fang Suhui Ma Qiong Cai Xinyu Xiong Di Tian Xia Zhao Leqi Fang Heng Zhang Jiangling Zhu Shuqing Zhao | 2020 | National Science Review2020，7，1： | 14 |
| 3 | Efficacy and safety of secukinumab in Chinese patients with moderate-to-severe plaque psoriasis: a real-life cohort study显示文摘Background:There have been few real-life dose-comparing studies on the efficacy and safety of secukinumab in Chinese patients with plaque psoriasis.We conducted a real-life cohort study to investigate the efficacy and safety of secukinumab 150 and 300 mg in Chinese patients with moderate-to-severe plaque psoriasis.Methods:A total of 106 patients with moderate-to-severe plaque psoriasis were included in this study.Patients received either secukinumab 150 mg or secukinumab 300 mg according to patients’weights and severity of psoriasis.The treatment continued for at least 24 weeks.The efficacy was evaluated by improvement in the psoriasis area and severity index(PASI)scores.The safety was also analyzed.Results:Fifty-nine patients(55.7%)were treated with secukinumab 300 mg and 47 patients(44.3%)were treated with secukinumab 150 mg.After 12-week treatment,PASI75/90/100 responses were achieved in 100%,97.8%,and 95.7%of patients,respectively,in secukinumab 150 mg group,and the efficacy was maintained to week 24.In secukinumab 300 mg group,PASI75/90/100 responses were achieved in 93.2%,81.4%,and 76.3%of patients,respectively,at week 12.In this group,PASI75/90/100 responses reached 91.5%,86.4%,and 79.9%,respectively,at week 24.Biologic-experienced patients had lower responses than biologic-naïve patients.Secukinumab 150 and 300 mg were well tolerated.Five patients discontinued treatment due to poor response,adverse event,or economic reasons.Conclusions:This real-life study demonstrated that high PASI 90 and PASI 100 responses were achieved in Chinese psoriasis patients receiving secukinumab 150 or 300 mg.Biologic-naïve was associated with better clinical efficacy. | Yan Zhao Lin Cai Xiao-Yang Liu Heng Zhang Jian-Zhong Zhang | 2021 | Chinese Medical Journal2021，，11： | 10 |
| 4 | A cohort autopsy study defines COVID-19 systemic pathogenesis显示文摘Severe COVID-19 disease caused by SARS-CoV-2 is frequently accompanied by dysfunction of the lungs and extrapulmonary organs.However,the organotropism of SARS-CoV-2 and the port of virus entry for systemic dissemination remain largely unknown.We profiled 26 COVID-19 autopsy cases from four cohorts in Wuhan,China,and determined the systemic distribution of SARS-CoV-2. | Xiao-Hong Yao Tao Luo Yu Shi Zhi-Cheng He Rui Tang Pei-Pei Zhang Jun Cai Xiang-Dong Zhou Dong-Po Jiang Xiao-Chun Fei Xue-Quan Huang Lei Zhao Heng Zhang Hai-Bo Wu Yong Ren Zhen-Hua Liu Hua-Rong Zhang Cong Chen Wen-Juan Fu Heng Li Xin-Yi Xia Rong Chen Yan Wang Xin-Dong Liu Chang-Lin Yin Ze-Xuan Yan Juan Wang Rui Jing Tai-Sheng Li Wei-Qin Li Chao-Fu Wang Yan-Qing Ding Qing Mao Ding-Yu Zhang Shu-Yang Zhang Yi-Fang Ping Xiu-Wu Bian | 2021 | Cell Research2021，31，8： | 7 |
| 5 | Pathological changes in the lungs and lymphatic organs of 12 COVID-19 autopsy cases显示文摘Systematic autopsy and comprehensive pathological analyses of COVID-19 decedents should provide insights into the disease characteristics and facilitate the development of novel therapeutics.In this study,we report the autopsy findings from the lungs and lymphatic organs of 12 COVID-19 decedents—findings that evaluated histopathological changes;immune cell signature and inflammatory factor expression in the lungs,spleen and lymph nodes.Here we show that the major pulmonary alterations included diffuse alveolar damage,interstitial fibrosis and exudative inflammation featured with extensive serous and fibrin exudates,macrophage infiltration and abundant production of inflammatory factors(IL-6,IP-10,TNFo?and IL-I f).The spleen and hilar lymph nodes contained lesions with tissue structure disruption and immune cell dysregulation,including lymphopenia and macrophage accumulation.These findings provide pathological evidence that links injuries of the lungs and lymphatic organs with the fatal systematic respiratory and immune malfunction in critically ill COVID-19 patients. | Qian Liu Yu Shi Jun Cai Yaqi Duan Rongshuai Wang Hongyan Zhang Qiurong Ruan Jiansha Li Lei Zhao Yifang Ping Rong Chen Liang Ren Xiaochun Fei Heng Zhang Rui Tang Xi Wang Tao Luo Xindong Liu Xuequan Huang Zhenhua Liu Qilin Ao Yong Ren Jing Xiong Zhicheng He Haibo Wu Wenjuan Fu Pengnan Zhao Xinwei Chen Guoqiang Qu Yunyun Wang Xi Wang Jia Liu Dongfang Xiang Sanpeng Xu Xiaowei Zhou Qingrui Li Jinghong Ma Heng Li Jie Zhang Sizhe Huang Xiaohong Yao Yiwu Zhou Chaofu Wang Dingyu Zhang Guoping Wang Liang Liu Xiu-Wu Bian | 2020 | National Science Review2020，7，12： | 6 |
| 6 | The heterogeneity of islet autoantibodies and the progression of islet failure in type 1 diabetic patients显示文摘Type 1 diabetes mellitus is heterogeneous in many facets. The patients suffered from type 1 diabetes present several levels of islet function as well as variable number and type of islet-specific autoantibodies. This study was to investigate prevalence and heterogeneity of the islet autoantibodies and clinical phenotypes of type 1 diabetes mellitus; and also discussed the process of islet failure and its risk factors in Chinese type 1 diabetic patients. A total of 1,291 type 1 diabetic patients were enrolled in this study. Demographic information was collected. Laboratory tests including mixed-meal tolerance test, human leukocyte antigen alleles, hemoglobin A1 c, lipids, thyroid function and islet autoantibodies were conducted. The frequency of islet-specific autoantibody in newly diagnosed T1 DM patients(duration shorter than half year) was 73% in East China. According to binary logistic regressions, autoantibody positivity, longer duration and lower Body Mass Index were the risk factors of islet failure. As the disease developed, autoantibodies against glutamic acid decarboxylase declined as well as the other two autoantibodies against zinc transporter 8 and islet antigen 2. The decrease of autoantibodies was positively correlated with aggressive beta cell destruction. Autoantibodies can facilitate the identification of classic T1 DM from other subtypes and predict the progression of islet failure. As there were obvious heterogeneity in autoantibodies and clinical manifestation in different phenotypes of the disease, we should take more factors into consideration when identifying type 1 diabetes mellitus. | Jin Liu Lingling Bian Li Ji Yang Chen Heng Chen Yong Gu Bingqin Ma Wei Gu Xinyu Xu Yun Shi Jian Wang Dalong Zhu Zilin Sun Jianhua Ma Hui Jin Xing Shi Heng Miao Bing Xin Yan Zhu Zhenwen Zhang Ruifang Bu Lan Xu Guangde Shi Wei Tang Wei Li Dongmei Zhou Jun Liang Xingbo Cheng Bimin Shi Jixiang Dong Ji Hu Chen Fang Shao Zhong Weinan Yu Weiping Lu Chenguang Wu Li Qian Jiancheng Yu Jialin Gao Xiaoqiang Fei Qingqing Zhang Xueqin Wang Shiwei Cui Jinluo Cheng Ning Xu Guofeng Wang Guoqing Han Chunrong Xu Yun Xie Minmin An Wei Zhang Zhixiao Wang Yun Cai Qi Fu Yu Fu Shuai Zheng Fan Yang Qingfang Hu Hao Dai Yu Jin Zheng Zhang Kuanfeng Xu Yifan Li Jie Shen Hongwen Zhou Wei He Xuqin Zheng Xiao Han Liping Yu Jinxiong She Mei Zhang Tao Yang | 2016 | Science China(Life Sciences)2016，59，9： | 5 |
| 7 | Compound Sophorae Decoction:treating ulcerative colitis by affecting multiple metabolic pathways显示文摘Ulcerative colitis(UC)is a chronic refractory non-specific intestinal inflammatory disease that is difficult to be cured.The discovery of new ulcerative colitis-related metabolite biomarkers may help further understand UC and facilitate early diagnosis.It may also provide a basis for explaining the mechanism of drug action in the treatment of UC.Compound Sophorae Decoction(CSD)is an empirical formula used in the clinical treatment of UC.Although it is known to be efficacious,its mechanism of action in the treatment of UC is unclear.The purpose of this study was to investigate the changes in endogenous substances in UC rats and the effects of CSD on metabolic pathways using the metabonomics approach.Metabolomics studies in rats with UC and normal rats were performed using LC-MS/MS.Rats with UC induced using TNBS enema were used as the study models.Metabolic profiling and pathway analysis of biomarkers was performed using statistical and pathway enrichment analyses.36 screened potential biomarkers were found to be significantly different between the UC and the normal groups;it was also found that CSD could modulate the levels of these potential biomarkers.CSD was found to be efficacious in UC by regulating multiple metabolic pathways. | HONG Zong-Chao CAI Quan WU He-Zhen YANG Yan-Fang FAN Heng DUAN Xue-Yun | 2021 | Chinese Journal of Natural Medicines2021，19，4： | 4 |
| 8 | Discrimination of industrial products by on-line near infrared spectroscopy with an improved dendrogram显示文摘近红外线(NIR ) 光谱学技术显示出大力量并且为分析复杂样品获得宽接受。现在的工作是由使用联机 NIR 光谱学和模式识别技术区分烟草产品的不同品牌。而且自从每张品牌包含很多样品,改进 dendrogram 被建议显示出不同品牌的分类。结果建议那 NIR 光谱学与主要部件分析(PCA ) 和分析(HCA ) 在不同品牌的辨别执行很好的层次簇结合了,并且改进 dendrogram 能关于品牌的差别提供更多的信息。 | Jing Jing Liu Heng Xu Wen Sheng Cai Xue Guang Shao | 2011 | Chinese Chemical Letters2011，22，10： | 4 |
| 9 | Post-marketing safety surveillance and reevaluation of Motherwort injection:A clinical study of 10094 cases显示文摘OBJECTIVE:To investigate the safety profiles of Motherwort injection(MI).METHODS:A multi-center,prospective and drugderived hospital intensive monitoring method was conducted to assess the safety of MI in real world applications.This study was based on a very large population after the injection was approved and marketed in China.All patients using the injection in participating hospitals were monitored to determine the incidence,pattern,severity and outcome of associated adverse events.RESULTS:The post-marketing surveillance was performed in 10 094 female patients from April to December,2015.The incidence of adverse drug reactions(ADRs) was 0.79‰(8/10 094).Among the 8 patients,the reported adverse events mainly included systemic abnormalities,such as fever,chills and eyelid edema;skin and appendages disorders,such as pruritus and rash;gastrointestinal disorders,such as nausea,abdominal distension and pain;heart rate and rhythm disorders,such as palpitation and increased heart rate.All of these ADRs were mild in severity.CONCLUSION:In this study the ADRs incidence rate of MI is very low,which supports that it is generally safe for use in obstetric and gynecological diseases.However,the total number of 8 ADRs recorded over a relatively short time span seems limited,and the low number of reports could not represent an absolute guarantee of safety. | Cao Shan Zhang Wenhao Zhao Ziwei Heng Mingli Bu Huaien Wang Hongwu Liu Xinghui Wang Zhong Cai Yan Ma Yuyan Cui Shihong Deng Jihong Ding Guifeng Ding Yajuan Dong Linhong Duan Zhentao Fan Ling Fan Yang Fu Fen He Jing Ji Shuying Jin Lin Li Hong Li Hongying Liao Tao Lu Wei Luo Xiucui Lü Zhihui Ma Fengchun Ma Dafeng Shi Tianyun Sun Juying Sun Xiaotong Teng Hong Wang Jinhua Wang Ruihua Wang Ying Wang Zhengling Xi Jie Xu Minjuan Xu Zhihong Yan Qian Yang Cuirong Yang Yimei Yin Jie Yu Jinhua Yuan Wenjun Zhang Guanli Zhang Meihua Zhao Renfeng Zhong Yonghong Zhou Jian | 2018 | Journal of Traditional Chinese Medicine2018，38，4： | 4 |
| 10 | Cratering process and morphological features of the Xiuyan impact crater in Northeast China显示文摘By using crater impact morphological theory and mathematics modeling,the paper studies the cratering process and morphological features of the Xiuyan Crater in Northeast China based on remote sensing imagery,digital elevation model(DEM)and drilling and measuring data.The results show that:1)Simulated calculation indicates the diameter of the transient crater was1406±12 m and the depth was 497±4 m.The diameter of the final crater was 1758±15 m and the depth was 374.5±3.5 m;the thickness of the breccia lens was 188.5±0.5 m.The data is basically the same as previous drilling data.2)Preliminary determination of the size of Xiuyan impactor:The diameter at about 55 m for an iron meteorite,and about 115 m for a stony meteorite.3)The depth-to-diameter ratio is 0.143,similar to the typical simple crater.The circularity index of the Xiuyan Crater is0.884,indicating erosion and degradation.4)The distribution pattern of radial fractures has priority in NW-SE and WNW-ESE and these fractures control the development and evolution of drainage inside the crater. | WANG XinYuan LUO Lei GUO HuaDong MU LingLi LI Chao JI Wei CAI Heng | 2013 | Science China Earth Sciences2013，56，10： | 4 |
| 11 | Effective combined therapy for pulmonary epithelioid hemangioendothelioma: A case report显示文摘BACKGROUND Pulmonary epithelioid hemangioendothelioma(P-EHE)is a rare disease.Thus far,consensus on a standard treatment for P-EHE has not been established given its low incidence worldwide.Apatinib combined with chemotherapy with doxorubicin/cyclophosphamide has been used as an effective combination treatment for human malignancies.However,the efficacy of this combination has not been reported in P-EHE cases.CASE SUMMARY We present the case of a 64-year-old woman with chest tightness,cough,and chest pain.Computed tomography showed multiple unresectable pulmonary nodules.She had been misdiagnosed with lung carcinoma and underwent gefitinib treatment at a hospital.Subsequently,the patient underwent a cardiothoracic surgery for further disease investigation.CD31,CD34,and Vimentin expression were detected in the resected nodule specimens by immunohistochemical analyses,and pathological analyses confirmed the diagnosis of P-EHE.Following this,four cycles of apatinib combined with chemotherapy with doxorubicin/cyclophosphamide were initiated.The patient demonstrated stabilization of multiple bilateral nodules and showed a dramatic improvement in the clinical presentation after combination treatment.The patient could not tolerate the side effects of chemotherapy.Therefore,she then continued apatinib monotherapy,which is ongoing to date.The patient was stable at the last follow-up after 24 mo.CONCLUSION Apatinib combined with chemotherapy with doxorubicin/cyclophosphamide may be an effective therapeutic option for P-EHE treatment. | Xiu-Qin Zhang Heng Chen Shu Song Yan Qin Li-Ming Cai Fang Zhang | 2020 | World Journal of Clinical Cases2020，8，10： | 3 |
| 12 | Global detection of large lunar craters based on the CE-1 digital elevation model显示文摘坑,月亮的表面的最重要的特征之一,因为他们为我们提供表面单位以及关键地质的信息的相对年龄,广泛地被研究了。关于月亮和另外的行星的身体的算法(CDA ) 专注于从形象数据检测他们的坑察觉的研究,而是检测使用的大坑的计算费用想象使这些 CDA 不切实际。这篇论文介绍一条新途径给利用一个数字举起模型而不是图象的坑察觉;这启用大坑的充分自动的全球察觉。坑被地面属性,然后 thresholding 描出地面属性的地图被用来把地志的数据转变成一幅二进制图象,最后,坑被从二进制图象使用 Hough 变换检测。由使用建议算法,我们生产了所有坑的一个目录在月亮的表面上的直径的 10 km 并且分析了他们的分发和人口特征。 | Lei LUO Lingli MU Xinyuan WANG Chao LI Wei JI Jinjin ZHAO Heng CAI | 2013 | Frontiers of Earth Science2013，7，4： | 3 |
| 13 | Application of automatic surface inspection system in cold-rolled strip production显示文摘The detection and classification of real-time surface defects play an important role in automotive sheet inspection and production. In this paper,an automatic surface inspection system( ASIS) based on signal processing in Baosteel NO. 4 cold-rolled plant is briefly presented. We demonstrate that the strip surface defect properties such as image,type,pitch,and position can be accurately calculated and classified by the automatic surface inspection system.In the manufacturing of the high-quality cold-rolled strips,it is necessary that the real-time surface defects can be detected and transferred by the automatic surface inspection system combined with annealing lines and recoiling lines. | HE Jianfeng SU Yuan XIE Xianlong CAI Heng HE Chunlai | 2015 | Baosteel Technical Research2015，9，1： | 2 |
| 14 | Life History Recorded in the Vagino-cervical Microbiome Along with Multi-omes显示文摘The vagina contains at least a billion microbial cells,dominated by lactobacilli.Here we perform metagenomic shotgun sequencing on cervical and fecal samples from a cohort of 516 Chinese women of reproductive age,as well as cervical,fecal,and salivary samples from a second cohort of 632 women.Factors such as pregnancy history,delivery history,cesarean section,and breastfeeding were all more important than menstrual cycle in shaping the microbiome,and such information would be necessary before trying to interpret differences between vagino-cervical microbiome data.Greater proportion of Bifidobacterium breve was seen with older age at sexual debut.The relative abundance of lactobacilli especially Lactobacillus crispatus was negatively associated with pregnancy history.Potential markers for lack of menstrual regularity,heavy flow,dysmenorrhea,and contraceptives were also identified.Lactobacilli were rare during breastfeeding or post-menopause.Other features such as mood fluctuations and facial speckles could potentially be predicted from the vagino-cervical microbiome.Gut and salivary microbiomes,plasma vitamins,metals,amino acids,and hormones showed associations with the vagino-cervical microbiome.Our results offer an unprecedented glimpse into the microbiota of the female reproductive tract and call for international collaborations to better understand its long-term health impact other than in the settings of infection or pre-term birth. | Zhuye Jie Chen Chen Lilan Hao Fei Li Liju Song Xiaowei Zhang Jie Zhu Liu Tian Xin Tong Kaiye Cai Zhe Zhang Yanmei Ju Xinlei Yu Ying Li Hongcheng Zhou Haorong Lu Xuemei Qiu Qiang Li Yunli Liao Dongsheng Zhou Heng Lian Yong Zuo Xiaomin Chen Weiqiao Rao Yan Ren Yuan Wang Jin Zi Rong Wang Na Liu Jinghua Wu Wei Zhang Xiao Liu Yang Zong Weibin Liu Liang Xiao Yong Hou Xun Xu Huanming Yang Jian Wang Karsten Kristiansen Huijue Jia | 2022 | Genomics, Proteomics & Bioinformatics2022，20，2： | 2 |
| 15 | Impacts of human interventions on the seasonal and nodal dynamics of the M_(2)and K_(1)tidal constituents in Lingdingyang Bay of the Zhujiang River Delta,China显示文摘Natural and human-induced changes may exert considerable impacts on the seasonal and nodal dynamics of M2 and K1 tidal constituents.Therefore,quantifying the influences of these factors on tidal regime changes is essential for sustainable water resources management in coastal environments.In this study,the enhanced harmonic analysis was applied to extract the seasonal variability of the M2 and K1 tidal amplitudes and phases at three gauging stations along Lingdingyang Bay of the Zhujiang River Delta.The seasonal dynamics in terms of tidal wave celerity and amplification/damping rate were used to quantify the impacts of human-induced estuarine morphological alterations on M2 and K1 tidal hydrodynamics in inner and outer Lingdingyang Bay.The results show that both tidal amplification/damping rate and wave celerity were considerably increased from the pre-anthropogenic activity period(Pre-AAP)to the post-anthropogenic activity period(Post-AAP)excepting the tidal amplification/damping rate in outer Lingdingyang Bay,and the variations in outer Lingdingyang Bay was larger than those in inner Lingdingyang Bay.The alterations in these two parameters were more significant in flood season than in dry season in both inner and outer Lingdingyang Bay.The seasonal variability of M2 and K1 tidal amplitudes were further quantified using a regression model accounting for the 18.61-year lunar nodal modulation,where this study observes a considerable alteration in M2 constituent owing to human interventions.During the Post-AAP,the M2 amplitudes at the downstream station were larger than those that would have occurred in the absence of strong human interventions,whereas the opposite was true for the upstream station,leading to a substantial decrease in tidal amplification in outer Lingdingyang Bay.However,it is opposite in inner Lingdingyang Bay.The underlying mechanism can be primarily attributed to channel deepening and narrowing caused by human interventions,that resulted in substantial enlargement of the bay volume and reduced the effective bottom friction,leading to faster wave celerity and stronger amplified waves. | Ping Zhang Qingshu Yang Haidong Pan Heng Wang Meifang Xie Huayang Cai Nanyang Chu Liangwen Jia | 2021 | Acta Oceanologica Sinica2021，40，10： | 2 |
| 16 | The relationships among structure variables of larch forests in China显示文摘Background:Larch(Larix Mill.)forests are widely distributed in the upper parts of mountainous areas in China,playing vital roles in constructing mountain landscapes and maintaining mountain environments.Despite their importance,our knowledges on the large-scale patterns of structure characteristics and the relationships between different structure variables are unclear.In this paper,we investigated 155 plots from 11 natural larch forest types across the country to explore the biogeographic patterns of the structure characteristics and the allometric relationships between different structure variables for Chinese larch forests.Results:The structure characteristics were significantly different among larch forest types.For different larch forest types,the power function fits the relationships between tree height and diameter at breast height(DBH),average DBH and stem density,and taper and stem density well,but with different exponents among larch forest types.The power exponents of the allometric relationships between tree height and DBH for different larch forest types varied from 0.61 to 0.93(mean=0.86)by standard major axis regression(SMA),and from 0.51 to 0.78(mean=0.56)by ordinary least square regression(OLS).The 50%,75%and 95%quantile regression(QR)and OLS indicated that the average DBH and taper of the L.gmelinii forests,L.gmelinii var.principis-rupprechtii forests,and L.sibirica forests were significantly correlated with stem density.Conclusions:The relationship between tree height and DBH showed a power function relationship for all larch forest types in China,but with different exponents.Overall,stem density was negatively correlated with average DBH and taper.The Sect.Larix forests exhibited stand density effect.Our findings provide an important basis for recognizing the biogeographic patterns of structure factors and for the management of larch forests in China. | Wenjing Fang Qing Zhao Qiong Cai Anwar Eziz Guoping Chen Yuhao Feng Heng Zhang Jiangling Zhu Chengjun Ji Zhiyao Tang Jingyun Fang | 2020 | Forest Ecosystems2020，7，4： | 2 |
| 17 | Constructing a core framework of visual engine for Digital Earth system显示文摘A visual engine is the core of a Digital Earth system.There is a wide variety of functional requirements in Digital Earth system and different requirements correspond to different operations.Based on the development of the visual engine for ChinaStar,a 3D Digital China prototype software platform,and analysis of 3D Digital Earth platforms such as Google Earth,Virtual Earth,Skyline,etc,are discussed.A common core framework for a visual engine is proposed in this paper to construct a visual engine and then with this framework various Digital Earth application systems can be developed efficient.The parametric model of the Earth,scheduling and optimization in visual field,choice of 3D graphics library,and designing component-based visual engine framework of Digital Earth are discussed in detail.In addition,the relationships among these four basic components and the construction of visualization applications of Digital Earth by this method are also discussed. | WENG JingNong,WANG YingJie & CAI Heng School of Computer,Beihang University,Beijing 100191,China | 2010 | Science China(Technological Sciences)2010，53，S1： | 2 |
| 18 | Distributions and air-sea fluxes of CO_2 in the summer Bering Sea显示文摘The 3rd Chinese National Arctic Research Expedition(CHINARE–Arctic III) was carried out from July to September in 2008. The partial pressure of CO2(pCO2) in the atmosphere and in surface seawater were determined in the Bering Sea during July 11–27, 2008, and a large number of seawater samples were taken for total alkalinity(TA) and total dissolved inorganic carbon(DIC) analysis. The distributions of CO2 parameters in the Bering Sea and their controlling factors were discussed. The pCO2 values in surface seawater presented a drastic variation from 148 to 563 μatm(1 μatm = 1.013 25×10-1 Pa). The lowest pCO2 values were observed near the Bering Sea shelf break while the highest pCO2 existed at the western Bering Strait. The Bering Sea generally acts as a net sink for atmospheric CO2 in summer. The air-sea CO2 fluxes in the Bering Sea shelf, slope, and basin were estimated at-9.4,-16.3, and-5.1 mmol/(m2·d), respectively. The annual uptake of CO2 was about 34 Tg C in the Bering Sea. | CHEN Liqi GAO Zhongyong SUN Heng CHEN Baoshan CAI Wei-jun | 2014 | Acta Oceanologica Sinica2014，33，6： | 2 |
| 19 | Stress triggering of the Lushan M7. 0 earthquake by the Wenchuan Ms8. 0 earthquake显示文摘The Wenchuan Ms8.0 earthquake and the Lushan M7.0 earthquake occurred in the north and south segments of the Longmenshan nappe tectonic belt,respectively.Based on the focal mechanism and finite fault model of the Wenchuan Ms8.0 earthquake,we calculated the coulomb failure stress change.The inverted coulomb stress changes based on the Nishimura and Chenji models both show that the Lushan M7.0 earthquake occurred in the increased area of coulomb failure stress induced by the Wenchuan Ms8.0 earthquake.The coulomb failure stress increased by approximately 0.135-0.152 bar in the source of the Lushan M7.0earthquake,which is far more than the stress triggering threshold.Therefore,the Lushan M7.0 earthquake was most likely triggered by the coulomb failure stress change. | Wu Jianchao Yu Song Cai Yongjian Lei Dongning Li Heng | 2013 | Geodesy and Geodynamics2013，4，3： | 2 |
| 20 | Decoding Cortical Glial Cell Development显示文摘Mouse cortical radial glial cells(RGCs)are primary neural stem cells that give rise to cortical oligodendrocytes,astrocytes,and olfactory bulb(OB)GABAergic interneurons in late embryogenesis.There are fundamental gaps in understanding how these diverse cell subtypes are generated.Here,by combining single-cell RNA-Seq with intersectional lineage analyses,we show that beginning at around E16.5,neocortical RGCs start to generate ASCL1^(+)EGFR^(+)apical multipotent intermediate progenitors(MIPCs),which then differentiate into basal MIPCs that express ASCL1,EGFR,OLIG2,and MKI67.These basal MIPCs undergo several rounds of divisions to generate most of the cortical oligodendrocytes and astrocytes and a subpopulation of OB interneurons.Finally,single-cell ATAC-Seq supported our model for the genetic logic underlying the specification and differentiation of cortical glial cells and OB interneurons.Taken together,this work reveals the process of cortical radial glial cell lineage progression and the developmental origins of cortical astrocytes and oligodendrocytes. | Xiaosu Li Guoping Liu Lin Yang Zhenmeiyu Li Zhuangzhi Zhang Zhejun Xu Yuqun Cai Heng Du Zihao Su Ziwu Wang Yangyang Duan Haotian Chen Zicong Shang Yan You Qi Zhang Miao He Bin Chen Zhengang Yang | 2021 | Neuroscience Bulletin2021，37，4： | 2 |
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