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1446篇 您的检索式:作者名="LI Hai"
    题名 作者 年代 出处 被引量
1Photoperiod- and thermo-sensitive genic male sterility in rice are caused by a point mutation in a novel noncoding RNA that produces a small RNA显示文摘光周期敏感、 thermo 敏感的遗传因子的男绝育(PGMS 和 TGMS ) 是为在庄稼的混合繁殖的核心部件。基于使用的较普通活字大一倍的系统, PGMS 和 TGMS 衬里的混合大米是成功地在农业广泛地发展了并且适用。然而,位于 PGMS 和 TGMS 的控制下面的分子的机制仍然保持阴暗。在这研究,我们印射并且克隆一个主要地点, p/tms12-1 (染色体 12 上的感光性或 thermo 敏感的遗传因子的男绝育地点) 它在装饰用的梨树米饭线 Nongken 58S (NK58S ) 授与 PGMS 和在 indica 米饭的 TGMS 衬里 Peiai 64S (PA64S,源于 NK58S ) 。包含野类型的等位基因 P/TMS12-1 的 A 2.4-kb DNA 碎片能在基因互补恢复 NK58S 和 PA64S 植物的花粉富饶。P/TMS12-1 编码唯一的 noncoding RNA,它生产 21 核苷酸我们说出 osa-smR5864w 的小 RNA。在 p/tms12-1 的 C-to-G 的替换,相对 P/TMS12-1 的唯一的多型性,在变异的小 RNA 是在场的,也就是 osa-smR5864m。而且,在转基因的 NK58S 和 PA64S 植物的 P/TMS12-1 的一个 375-bp 序列的 overexpression 也生产了 osa-smR5864w 并且恢复了花粉富饶。小 RNA 在年轻圆锥花序优先地被表示,但是它的表示没被不同的天长度或温度显著地影响。我们的结果表明在 p/tms12-1 的点变化,可能为 osa-smR5864m 导致 loss-of-function,分别地在装饰用的梨树和 indica 线为 PGMS 和 TGMS 组成一个普通原因。我们的调查结果因此建议那小 RNA 基因是的这 noncoding 男开发的一个重要管理者由在基因网络和环境条件之间的串音控制了。Hai Zhou Qinjian Liu Jing Li Dagang Jiang Lingyan Zhou Ping Wu Sen Lu Feng Li Liya Zhu Zhenlan Liu Letian Chen Yao-Guang Liu Chuxiong Zhuang 2012Cell Research2012,22,4:99
2One-step generation of knockout pigs by zygote injection of CRISPR/Cas system显示文摘Tang Hai Fei Teng Runfa Guo Wei Li Qi Zhou 2014Cell Research2014,24,3:131
3Mobius Isoparametric Hypersurfaces in S^(n+1) with Two Distinct Principal CurvaturesHai Zhong LI Department of Mathematics, Tsinghua University. Beijing 100084. P. R. China Hui Li LIU Department of Mathematics, Northeastern University. Shenyang 110000. P. R. China Chang Ping WANG Key Laboratory of Pure and Applied Mathematics, School of Mathematical Sciences. Peking University, Beijing 100871, P. R. China Guo Song ZHAO Department of Mathematics, Sichuan University, Chengdu 610064. P. R. China 2002Acta Mathematica Sinica,English Series2002,18,3:53
4Identification and genetic mapping of four novel genes that regulate leaf development in Arabidopsis显示文摘Molecular and genetic characterizations of mutants have led to a better understanding of many developmental processes in the model system Arabidopsis thaliana. However, the leaf development that is specific to plants has been little studied. With the aim of contributing to the genetic dissection of leaf development, we have performed a large-scare screening for mutants with abnormal leaves. Among a great number of leaf mutants we have generated by T-DNA and transposon tagging and ethylmethae sulfonate (EMS) mutagenesis, four independent mutant lines have been identified and studied genetically. Phenotypes of these mutant lines represent the defects of four novel nuclear genes designated LL1 (LOTUS LEAF 1), LL2 (LOTUS LEAF 2), URO (UPRIGHT ROSETTE), and EIL (ENVIRONT CONDITION INDUCED LESION). The phenotypic analysis indicates that these genes play important roles during leaf development. FOr the further genetic analysis of these genes and the map-based cloning of LL1 and LL2, we have mapped these genes to chromosome regions with an efficient and rapid mapping method.SUN YUE WEI ZHANG FENG LING LI YING LI GUO TIAN LEI LIU HAI HUANG 2000Cell Research2000,10,4:53
5Fast-track surgery could improve postoperative recovery in radical total gastrectomy patients显示文摘AIM: To assess the impact of fast-track surgery (FTS) on hospital stay, cost of hospitalization and complications after radical total gastrectomy. METHODS: A randomized, controlled clinical trial was conducted from November 2011 to August 2012 in the Department of Digestive Surgery, Xijing Hospital of Digestive Diseases, the Fourth Military Medical University. A total of 122 gastric cancer patients who met the selection criteria were randomized into FTS and conventional care groups on the first day of hospitalization. All patients received elective standard D2 total gastrectomy. Clinical outcomes, including duration of flatus and defecation, white blood cell count, postoperative pain, duration of postoperative stay, cost of hospitalization and complications were recorded and evaluated.Two specially trained doctors who were blinded to the treatment were in charge of evaluating postoperative outcomes, discharge and follow-up. RESULTS: A total of 119 patients finished the study, including 60 patients in the conventional care group and 59 patients in the FTS group. Two patients were excluded from the FTS group due to withdrawal of consent. One patient was excluded from the conventional care group because of a non-resectable tumor. Compared with the conventional group, FTS shortened the duration of flatus (79.03 ± 20.26 hvs 60.97 ± 24.40 h, P = 0.000) and duration of defecation (93.03 ± 27.95 h vs 68.00 ± 25.42 h, P = 0.000), accelerated the decrease in white blood cell count [P < 0.05 on postoperative day (POD) 3 and 4], alleviated pain in patients after surgery (P < 0.05 on POD 1, 2 and 3), reduced complications (P < 0.05), shortened the duration of postoperative stay (7.10 ± 2.13 dvs 5.68 ± 1.22 d,P = 0.000), reduced the cost of hospitalization (43783.25 ± 8102.36 RMBvs 39597.62 ± 7529.98 RMB,P = 0.005), and promoted recovery of patients. CONCLUSION: FTS could be safely applied in radical total gastrectomy to accelerate clinical recovery of gastric cancer patients.Fan Feng Gang Ji Ji-Peng Li Xiao-Hua Li Hai Shi Zheng-Wei Zhao Guo-Sheng Wu Xiao-Nan Liu Qing-Chuan Zhao 2013World Journal of Gastroenterology2013,19,23:44
6Anti-tumor activities of active ingredients in Compound Kushen Injection显示文摘Kushen (根值 Sophorae Flavescentis ) 在繁体中文药为肿瘤,发炎和另外的疾病的治疗有使用的长历史。复合 Kushen 注射(CKI ) 是从 Kushen 和 Baituling (根茎 Smilacis Glabrae ) 提取的自然混合物的混合物。CKI 的主要原则是 matrine (MT ) 和展出许多药理学活动的 oxymatrine (OMT ) ,包括反煽动性,反过敏,抗病毒, anti-fibrotic 和心血管的保护的效果。最近的证据证明这些混合物也产生反癌症行动,例如禁止癌症房间增长,导致房间周期拘捕,加速 apoptosis ,制止 angiogenesis ,导致房间区别,禁止癌症转移和侵略,逆行的 multidrug 抵抗,并且阻止或减少化疗--或导致放射疗法的毒性当与化学疗法的药结合了时。在这评论,我们在学习 MT, OMT 和 CKI 和他们的潜在的分子的目标的反癌症活动总结最近的进步,它为进一步的学习提供线索和参考书。Wei WANG Rong-li YOU Wen-jie QIN Li-na HAI Ming-jing FANG Guo-hua HUANG Rui-xia KANG Ming-hua LI Yu-feng QIAO Jian-wei LI An-ping LI 2015Acta Pharmacologica Sinica2015,36,6:41
7A community-derived classification for extant lycophytes and ferns显示文摘发展史长通知了蕨类植物分类。当我们推断进化的树的能力改善了,针对认出生来的组的分类变得逐渐地预兆、稳定。这里,我们为 lycophytes 和蕨纲植物提供一个现代、全面分类,在下面,利用一条基于社区的途径类水平。我们 monophyly 用作主要标准让 taxa,而且目的识别保存两个广泛地被接受的存在 taxa 和界限并且与我们蕨类植物发展史的理解一致。总共,这个分类对待一在 337 个类, 51 个家庭, 14 目,和二个班估计了 11  916 种类。这个分类没在 lycophyte 和蕨纲植物上作为最后的词被打算分类,而是当前的假设的概括陈述,源于最好的可得到的数据并且在问题由熟悉植物的那些大多数塑造了。我们希望它将在蕨类植物上为最近的文学的那些想要的参考用作一个资源发展史和分类,为指导未来调查的一个框架,和推进讲话的刺激。Eric Schuettpelz Harald Schneider Alan R. Smith Peter Hovenkamp Jefferson Prado Germinal Rouhan Alexandre Salino Michael Sundue Thafs Elias Almeida Barbara Parris Emily B. Sessa Ashley R. Field Andre Luis de Gasper Carl J. Rothfels Michael D. Windham Marcus Lehnert Benjamin Dauphin Atsushi Ebihara Samuli Lehtonen Pedro Bond Schwartsburd Jordan Metzgar Li-Bing Zhang Li-Yaung Kuo Patrick J. Brownsey Masahiro Kato Marcelo Daniel Arana Francine C. Assis Michael S. Barker David S. Barrington Ho-Ming Chang Yi-Han Chang Yi-Shan Chao Cheng-Wei Chen De-Kui Chen Wen-Liang Chiou Vinicius Antonio de Oliveira Dittrich Yi-Fan Duan Jean-Yves Dubuisson Donald R. Farrar Susan Fawcett Jose Maria Gabriel y Galan Luiz Armando de Araujo Goes-Neto Jason R. Grant Amanda L. Grusz Christopher Haufler Warren Hauk Hai He Sabine Hennequin Regina Yoshie Hirai Layne Huiet Michael Kessler Petra Korall Paulo H. Labiak Anders Larsson Blanca Leen Chun-Xiang Li Fay-Wei Li Melanie Link-Perez Hong-Mei Liu Ngan Thi Lu Esteban I. Meza-Torres Xin-Yuan Miao Robbin Moran Claudine Massi Mynssens Nathalie Nagalingum Benjamin Ollgaard Alison M. Paul Jovani B. de S. Pereira Leon R. Perrie Monica Ponce Tom A. Ranker Christian Schulz Wataru Shinohara Alexander Shmakov Erin M. Sigel Filipe Soares de Souza Lana da Silva Sylvestre Weston Testo Luz Amparo Triana-Moreno Chie Tsutsumi Hanna Tuomisto IvAn A. Valdespino Alejandra Vasco Raquel Stauffer Viveros Alan Weakley Ran Wei Stina Weststrand Paul G. Wolf George Yatskievych Xiao-Gang Xu Yue-Hong Yan Liang Zhang Xian-Chun Zhang Xin-Mao Zhou 2016Journal of Systematics and Evolution2016,54,6:44
8Correction of a genetic disease by CRISPR-Cas9-mediated gene editing in mouse spermatogonial stem cells显示文摘Spermatogonial 干细胞(SSC ) 能在移植以后生产众多的男配偶子进接受者睾丸,介绍为基因治疗和修改基因的动物的连续生产的一条珍贵途径。然而, SSC 的成功的基因操作被限制了,部分由于复杂性和当前可得到的基因编辑技术的低效率。这里,我们证明有效基因修正能用 CRISPR-Cas9 系统被介绍进 SSC。我们使用了 CRISPR-Cas9 系统变异在 SCC 的 EGFP transgene 或内长的 Crygc 基因。变异的 SSC 在移植以后经历了精子发生进不肥沃的老鼠睾丸的生精的小管。圆 spermatids 被产生并且在进成熟卵母细胞的注射以后,支持了显示相应变异的显型的异质接合的后代的生产。而且,在 Crygc 的一个引起疾病的变化(在 SSC 先存在的 Crygc −/−) 能乐意地到加入的 CRISPR-Cas9-induced nonhomologous 结束(NHEJ ) 或指导相同的修理(HDR ) 被修理,导致没有是的离开目标修正的证据带改正的基因的 SSC 线由整个染色体的定序出现。用从这些线产生的圆 spermatids 的授精在 100% 的效率与改正的显型产生了后代。我们的结果表明有效基因由 CRISPR-Cas9 系统在老鼠 SSC 编辑,并且提供在 SSC 经由基因修正治好基因疾病的原则的证明。Yuxuan Wu Hai Zhou Xiaoying Fan Ying Zhang Man Zhang Yinghua Wang Zhenfei Xie Meizhu Bai Qi Yin Dan Liang Wei Tang Jiaoyang Liao Chikai Zhou Wujuan Liu Ping Zhu Hongshan Guo Hong Pan Chunlian Wu Huijuan Shi Ligang Wu Fuchou Tang Jinsong Li 2015Cell Research2015,25,1:37
9Preparation of hierarchical mesoporous Zn/HZSM-5 catalyst and its application in MTG reaction显示文摘The hierarchical mesoporous Zn/ZSM-5 zeolite catalyst was prepared by NaOH treatment and Zn impregnation, and its application in the conversion of methanol to gasoline (MTG) was studied. N2 adsorption-desorption results showed that the mesopores with sizes of 2–20 nm in HZ5/0.3AT was formed by 0.3 M NaOH alkali treatment. The zeolite samples after modification were also characterized by XRF, AAS, XRD, SEM and NH3-TPD methods. Zn impregnated catalyst Zn/HZ5/0.3AT exhibited dramatic improvements in catalytic lifetime and liquid hydrocarbons yield. The selectivity of aromatic hydrocarbons was also improved after Zn impregnation. It is suggested that the mesopores of Zn/HZ5/0.3AT enhanced the synergetic effect of Zn species and acid sites and the capability to coke tolerance, which were confirmed by the results of catalytic test and TGA analysis, respectively.Youming Ni Aiming Sun XiaolingWu Guoliang Hai Jianglin Hu Tao Li Guangxing Li 2011Journal of Natural Gas Chemistry2011,20,3:31
10Effect of Boschniakia rossica on expression of GSTP,p53 and p21^(ras)proteins in early stage of chemical hepatocarcinogenesis and its anti-inflammatory activities in rats显示文摘AIM To investigate the effect of Boschniakiarossica(BR)extract on expression of GST-P,p53 and p21rasproteins in early stage of chemicalhepatocarcinogenesis in rats and its anti-inflammatory activities.METHODS The expression of tumor marker-placental form glutathione S-transferase(GST-P),p53 and p21rasproteins were investigated byimmunohistochemical techniques and ABCmethod.Anti-inflammatory activities of BR werestudied by xylene and croton oil-induced mouseear edema,carrageenin,histamine and hotscald-induced rat pow edema,adjuvant-inducedrat arthritis and cotton pellet-induced mousegranuloma formation methods.RESULTS The 500 mg/kg of BR-H2O extractfractionated from BR-Methanol extract hadinhibitory effect on the formation of DEN-inducedGST-P-positive foci in rat liver(GST-P stainingwas 78% positive in DEN+AAF group vs 20%positive in DEN+AAF+BR group,P<0.05)andthe expression of mutant p53 and p21rasproteinwas lower than that of hepatic preneoplasticlesions(33% and 22% positive respectively inDEN+AAF group vs negative in DEN+AAF+BRgroup).Both CH2Cl2 and H2O extracts from BRhad anti-inflamatory effect in xylene and crotonoil-induced mouse ear edema(inhibitory rateswere 26%-29% and 35%-59%,respectively). BR-H2O extract exhibited inhibitory effect incarrageenin,histamine and hot scald-inducedhind paw edema and adjuvant-induced arthritis inrats and cotton pellet-induced granulomaformation in mice.CONCLUSION BR extract exhibited inhibitory effect on formation of preneoplastic hepatic foci in early stage of rat chemical hepato-carcinogenesis. Both CH2CI2 and H2O extracts from BR exerted anti-inflammatory effect in rats and mice.Zong Zhu Yin Hai Ling Jin Xue Zhe Yin Tian Zhu Li Ji Shu Quan Zeng Nan Jin Institute for Cancer Research,Yanbian University College of Medicine,Yanji 133000,Jilin Province,China 2000World Journal of Gastroenterology2000,6,6:33
11Diver CE versus Guardwire Plus for thrombectomy in patients with inferior myocardial infarction:a trial of aspiration of thrombus during primary angioplasty for inferior myocardial infarction显示文摘背景不同可行、安全的 thrombectomy 和远侧的保护设备用 Diver CE 设备在临床的 practice.The 效率和附属物 thrombectomy 的安全被使用了( Invatec ,意大利 )对 Guardwire 正设备( Medtronic ,美国)在经皮的冠的干预(一种总线标准)与尖锐劣等的 ST-segment-elevation 心肌的梗塞( STEMI )在病人被作比较不到 12 个小时以前,在心肌的梗塞( TIMI )的 thrombolysis 流动分级 0~1 ,并且总计吸藏第二等的结束点被让结束心脏舒张的体积( LVEDV )室,左室喷射部分( LVEF )和包括死亡的主要不利心脏的事件(权标),心肌的梗塞,在 122 个病人的 30 days.Results A 总数的目标容器 revascularization 和击同等地被划分成 Diver CE 组和 Guardwire 正组,它到年龄是可比较的(( 60 ?????????汣灯摩杯敲????朠潲灵?潃据畬楳湯??湡獵?YAN Hong-bing WANG Jian LI Nan ZHU Xiao-ling GAO Hai AI Hui LI Xiang YE Ming CHI Yun-peng ZHANG Hong 2007Chinese Medical Journal2007,,7:29
12An atomic force microscopy study of coal nanopore structure显示文摘Coal nanopore structure is an important factor in understanding the storage and migration of absorbed gas in coal. A new method for studying coal nanopore structures is proposed. This idea is based on the nano-level resolution of atomic force microscopy, which can be employed to observe the structural features of coal nanopores clearly, conduct quantitative three-dimensional measurements and obtain structural parameters. Analysis results show that coal nanopores are mainly metamorphic pores and intermolecular pores. The metamorphic pores are commonly rounded and elliptical, increasing quantitatively with the coalification degree. The forms of intermolecular pores change markedly. The average pore size of low-rank coal is bigger than high-rank coal, and the number of intermolecular pores decreases as the coal rank increases. Section analysis effectively characterizes the coal pore microstructure, bearing analysis is a vital approach to measure microporosity, and grain analysis can be employed to study the pore size distribution. Atomic force microscopy is a tool for the in-depth research of coal pore microstructure and the coal-bed methane adsorption mechanism.YAO SuPing JIAO Kun ZHANG Ke HU WenXuan DING Hai LI MiaoChun PEI WenMing 2011Chinese Science Bulletin2011,56,25:30
13Outbreak of Dengue Fever in Central China,2013显示文摘In 2013,the first dengue fever(DF) outbreak in central China was reported in the central of Henan province,northern temperate regions,although they have been sequentially recorded in Southern China.106 suspected DF cases were reported and 73 patients were confirmed dengue virus type 3(DEN-3) infections.62/392(15.8%) local health persons showed DEN antibodies positive.To this day Henan is the northernmost province in China which has been reported about outbreak of DF and what is important is that it warns us the endemic range of DF has been expanded geographically in China.HUANG Xue Yong MA Hong Xia WANG Hai Feng DU Yan Hua SU Jia LI Xing Le TANG Xiao Yan MA Hong Peng ZU Bing Can ZHANG Qiao Hong CHEN Hao Min XU Bian Li 2014Biomedical and Environmental Sciences2014,27,11:30
14Epidemiology of Diabetes in Adults Aged 35 and Older from Shanghai,China显示文摘Objective This study aimed to investigate the epidemiology of diabetes in adults from Shanghai, aged 35 and older, in 2013. Methods We estimated the diabetes prevalence in a representative sample of 18,736 adults who were selected through a multistage stratified cluster sampling process. A standard questionnaire containing questions about demographic characteristics and lifestyle factors was distributed. After an overnight fast of at least 10 hours, a venous blood sample was collected from each participant. For each patient without a history of diabetes, another blood sample was drawn 120 min after an oral glucose tolerance test to identify undiagnosed diabetes and prediabetic condition. Results Among Shanghai residents aged 35 and above, the overall weighted prevalence of diabetes was 17.6% [95% confidence interval(CI): 16.4%-18.8%]. The prevalences were 19.3% in men and 15.8% in women as well as 19.1%, 15.4%, and 16.1% in urban, suburban, and rural residents, respectively. In addition, the weighted prevalence of prediabetes was 16.5%(95% CI: 15.3%-17.8%), with the prevalences of 16.5% in men, 16.6% in women, 15.2% in urban residents, 18.0% in suburban residents, and 18.5% in rural residents. Among all patients with diabetes, 68.1%(95% CI: 64.3%-71.6%) were aware of their status, 63.5%(95% CI: 60.0%-66.9%) received diabetes treatment, but only 35.1%(95% CI: 32.4%-37.8%) had adequate glycemic control. Conclusion In Shanghai, diabetes and prediabetes are highly prevalent. However, 1/3rd of diabetes cases are undiagnosed, and the rate of glycemic control is low.RUAN Ye YAN Qing Hua XU Ji Ying YANG Qun Di YAO Hai Hong LI Rui SHI Yan 2016Biomedical and Environmental Sciences2016,29,6:22
15Deep Learning and Its Applications in Biomedicine显示文摘Advances in biological and medical technologies have been providing us explosive volumes of biological and physiological data,such as medical images,electroencephalography,genomic and protein sequences.Learning from these data facilitates the understanding of human health and disease.Developed from arti?cial neural networks,deep learning-based algorithms show great promise in extracting features and learning patterns from complex data.The aim of this paper is to provide an overview of deep learning techniques and some of the state-of-the-art applications in the biomedical?eld.We?rst introduce the development of arti?cial neural network and deep learning.We then describe two main components of deep learning,i.e.,deep learning architectures and model optimization.Subsequently,some examples are demonstrated for deep learningapplications,including medical image classi?cation,genomic sequence analysis,as well as protein structure classi?cation and prediction.Finally,we offer our perspectives for the future directions in the?eld of deep learning.Chensi Cao Feng Liu Hai Tan Deshou Song Wenjie Shu Weizhong Li Yiming Zhou Xiaochen Bo Zhi Xie 2018Genomics, Proteomics & Bioinformatics2018,16,1:22
16A Strigolactone Biosynthesis Gene Contributed to the Green Revolution in Rice显示文摘Plant architecture is a complex agronomic trait and a major factor of crop yield,which is affected by several important hormones.Strigolactones(SLs)are identified as a new class hormoneinhibiting branching in many plant species and have been shown to be involved in various developmental processes.Genetical and chemical modulation of the SL pathway is recognized as a promising approach to modify plant architecture.However,whether and how the genes involved in the SL pathway could be utilized in breeding still remain elusive.Here,we demonstrate that a partial loss-of-function allele of the SL biosynthesis gene,HIGH TILLERING AND DWARF 1/DWARF17(HTD1/D17),which encodes CAROTENOID CLEAVAGE DIOXYGENASE 7(CCD7),increases tiller number and improves grain yield in rice.We found that the HTD1 gene had been widely utilized and co-selected with Semidwarf 1(SD1),both contributing to the improvement of plant architecture in modern rice varieties since the Green Revolution in the 1960s.Understanding how phytohormone pathway genes regulate plant architecture and how they have been utilized and selected in breeding will lay the foundation for developing the rational approaches toward improving crop yield.Yuexing Wang Lianguang Shang Hong Yu Longjun Zeng Jiang Hu Shen Ni Yuchun Rao Sanfeng Li Jinfang Chu Xiangbing Meng Lei Wang Ping Hu Jijun Yan Shujing Kang Minghao Qu Hai Lin Tao Wang Quan Wang Xingming Hu Hongqi Chen Bing Wang Zhenyu Gao Longbiao Guo Dali Zeng Xudong Zhu Guosheng Xiong Jiayang Li Qian Qian 2020Molecular Plant2020,13,6:23
17Climate and litter C/N ratio constrain soil organic carbon accumulation显示文摘Soil organic carbon(SOC) plays critical roles in stabilizing atmospheric CO2 concentration, but the mechanistic controls on the amount and distribution of SOC on global scales are not well understood. In turn, this has hampered the ability to model global C budgets and to find measures to mitigate climate change. Here, based on the data from a large field survey campaign with 2600 plots across China’s forest ecosystems and a global collection of published data from forested land, we find that a low litter carbon-to-nitrogen ratio(C/N) and high wetness index(P/PET, precipitation-to-potentialevapotranspiration ratio) are the two factors that promote SOC accumulation, with only minor contributions of litter quantity and soil texture. The field survey data demonstrated that high plant diversity decreased litter C/N and thus indirectly promoted SOC accumulation by increasing the litter quality. We conclude that any changes in plant-community composition, plant-species richness and environmental factors that can reduce the litter C/N ratio, or climatic changes that increase wetness index, may promote SOC accumulation. The study provides a guideline for modeling the carbon cycle of various ecosystem scales and formulates the principle for land-based actions for mitigating the rising atmospheric CO2 concentration.Guoyi Zhou Shan Xu Philippe Ciais Stefano Manzoni Jingyun Fang Guirui Yu Xuli Tang Ping Zhou Wantong Wang Junhua Yan Gengxu Wang Keping Ma Shenggong Li Sheng Du Shijie Han Youxin Ma Deqiang Zhang Juxiu Liu Shizhong Liu Guowei Chu Qianmei Zhang Yuelin Li Wenjuan Huang Hai Ren Xiankai Lu Xiuzhi Chen 2019National Science Review2019,6,4:21
18Modern stalagmite oxygen isotopic composition and its implications of climatic change from a high-elevation cave in the eastern Qinghai-Tibet Plateau over the past 50 years显示文摘An oxygen isotope record of a stalagmite from Huanglong Cave in the eastern Qinghai-Tibet Plateau dated with 230Th and 210Pb methods provides variations of the Asian monsoon with an average resolu-tion of 1 year over the past 50 years. This study shows that the δ18O of dripwater in the cave represents the annual mean δ18O of local meteoric precipitation and the stalagmites were deposited in isotopic equilibrium. A comparison of the stalagmite δ18O record with instrumentally meteorological data indi-cates that shifts of the δ18O are largely controlled by the amount effect of meteoric precipitation con-veyed through the southwest monsoon(the Indian monsoon) and less affected by temperature. Therefore,the variations of δ18O record reflect the changes in monsoon precipitation on inter-annual time scales under the influence of the southwest monsoon. Like many other stalagmite δ18O records in the Asian monsoon regions,the δ18O record of the stalagmite from Huanglong Cave also reveals a gradually enriched trend during the past 50 years,i.e. relatively enriched in 18O. This trend may indicate the decline of the Asian monsoon intensity which is consistent with the decrease of monsoon indices. The weakening of the modern Asian monsoon well matched with the temperature changes in strato-sphere,which may illustrate that the weakening of the monsoon mainly results from the lowering of solar radiation.YANG XunLin ZHANG PingZhong CHEN FaHu HUH Chih-an LI HongChun CHENG Hai Kathleen R. JOHNSON LIU JingHua AN ChunLei 2007Chinese Science Bulletin2007,52,9:20
19A Single Nucleotide Deletion in J Encoding GmELF3 Confers Long Juvenility and Is Associated with Adaption of Tropic Soybean显示文摘Yanlei Yue Nianxi Liu Bingjun Jiang Mu Li Haijie Wang Ze Jiang Huanting Pan Qiuju Xia Qibin Ma Tianfu Han Hai Nian 2017Molecular Plant2017,10,4:20
20Crustal structure of the northwestern sub-basin, South China Sea: Results from a wide-angle seismic experiment显示文摘The crustal structure of the northwestern sub-basin area of the South China Sea was modeled by inverting a wide-angle seismic survey line across the entire region and on both sides of its bounding continental margins. The survey line extended over 484 km. A total of 14 Ocean Bottom Seismometers (OBS) were deployed at intervals of 30 km to record air-gun array sources with a combined volume of 5160 in 3 . The crustal velocity structure of the northwestern sub-basin area was acquired through the integration of multi-channel seismic data. OBS data were processed and modeled initially using ray tracing inversion techniques. Results indicate that crustal thickness under the continental slope decreases from 21 to 11 km, crustal thickness of the northwestern sub-basin is 7.7 km, and the depth to the Moho ascends from 21 km under the upper continental slope to 11 km under the middle basin. The crust of the northwestern sub-basin is similar to that of the eastern sub-basin in its oceanic crustal structure. This structure has a thicker layer 1 (sedimentary layer) and a thinner layer 2. These characteristics are especially clear in the eastern sub-basin, which differs somewhat from typical oceanic crust. The tectonic geometry and velocity structure of the northwestern sub-basin and its margins comprise a symmetrical conjugate and indicate a pure shear mode with regard to the continental margin rifting mechanism. We did not find clear seismic signals from high velocity layers under the lower crust of the continental margin in the northern part of the northwestern sub-basin, which provides new evidence for the idea that the western part of the northern continental margin of the South China Sea constitutes nonvolcanic crust. Because the seafloor spreading period of the northwestern sub-basin was short, layer 2 might have experienced asymmetrical basalt magma flows, which may have blurred the magnetic anomaly lineations of the northwestern sub-basin.WU ZhenLi LI JiaBiao RUAN AiGuo LOU Hai DING WeiWei NIU XiongWei LI XiBing 2012Science China Earth Sciences2012,55,1:19
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