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| 1 | Estimating forest aboveground biomass using HJ-1 Satellite CCD and ICESat GLAS waveform data显示文摘The ecosystem in northeastern China and the Russian Far East is a hotspot of scientific research into the global carbon balance.Forest aboveground biomass(AGB) is an important component in the land surface carbon cycle.In this study,using forest inventory data and forest distribution data,the AGB was estimated for forest in Daxinganlin in northeastern China by combining charge-coupled device(CCD) data from the Small Satellite for Disaster and Environment Monitoring and Forecast(HJ-1) and Geoscience Laser Altimeter System(GLAS) waveform data from the Ice,Cloud and land Elevation Satellite(ICESat).The forest AGB prediction models were separately developed for different forest types in the research area at GLAS footprint level from GLAS waveform parameters and field survey plot biomass in the Changqing(CQ) Forest Center,which was calculated from forest inventory data.The resulted statistical regression models have a R2=0.68 for conifer and R2=0.71 for broadleaf forests.These models were used to estimate biomass for all GLAS footprints of forest located in the study area.All GLAS footprint biomass coupled with various spectral reflectivity parameters and vegetation indices derived from HJ-1 satellite CCD data were used in multiple regression analyses to establish biomass prediction models(R2=0.55 and R2=0.52 for needle and broadleaf respectively).Then the models were used to produce a forest AGB map for the whole study area using the HJ-1 data.Biomass data obtained from forest inventory data of the Zhuanglin(ZL) Forest Center were used as independent field measurements to validate the AGB estimated from HJ-1 CCD data(R2=0.71).About 80% of biomass samples had an error less than 20 t ha-1,and the mean error of all validation samples is 5.74 t ha-1.The pixel-level biomass map was then stratified into different biomass levels to illustrate the AGB spatial distribution pattern in this area.It was found that HJ-1 wide-swath data and GLAS waveform data can be combined to estimate forest biomass with good precision,and the biomass data can be used as input data for future carbon budget analysis. | GUO ZhiFeng1,CHI Hong1,2 & SUN GuoQing1,3 1State Key Laboratory of Remote Sensing Science,Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University,Institute of Remote Sensing Applications,Chinese Academy of Sciences,Beijing 100101,China 2Graduate University of Chinese Academy of Sciences,Beijing 100049,China 3Department of Geography University of Maryland,College Park,MD 20742,USA | 2010 | Science China Earth Sciences2010，53，S1： | 21 |
| 2 | Stripe Rust Effector PstGSRE1 Disrupts Nuclear Localization of ROS-Promoting Transcription Factor TaLOL2 to Defeat ROS-Induced Defense in Wheat显示文摘Puccinia striiformis f.sp.tritici(Pst),a biotrophic plant pathogen,secretes numerous effectors to modulate host defense systems.Understanding the molecular mechanisms by which Pst effectors regulate wheat immunity is of great importance for the development of novel strategies for durable control of stripe rust.In this study,we identified a glycine-serine-rich effector gene,PstGSRE1,which is highly induced dur-ing early infection.Transgenic expression of PstGSRE1 RNAi constructs in wheat significantly reduced virulence of Pst and increased H2O2 accumulation in wheat.PstGSRE1 was shown to target the reactive ox-ygen species(ROS)-associated transcription factor TaLOL2,a positive regulator of wheat immunity.PstGSRE1 disrupted nuclear localization of TaLOL2 and suppressed ROS-mediated cell death induced by TaLOL2,thus compromising host immunity.This work reveals a previously unrecognized strategy whereby rust fungi exploit the PstGSRE1 effector to defeat ROS-associated plant defense by modulating the subcellular compartment of a host immune regulator and facilitate pathogen infection. | Tuo Qi Jia Guo Peng Liu Fuxin He Cuiping Wan Md Ashraful Islam Brett M.Tyler Zhensheng Kang Jun Guo | 2019 | Molecular Plant2019，12，12： | 11 |
| 3 | Sedimentary and geochemical evidence of Eocene climate change in the Xining Basin, northeastern Tibetan Plateau显示文摘The northeastern Tibetan Plateau began to grow during the Eocene and it is important to understand the climatic history of Asia during this period of so-called ‘doubthouse' conditions. However, despite major advances in the last few decades,the evolutionary history and possible mechanisms of Eocene climate change in the northeastern Tibetan Plateau remain unclear.The Xining Basin in the northeastern Tibetan Plateau contains a continuous sequence of Early to Late Eocene non-marine sediments which provides the opportunity to resolve long-term climate changes during this period. In this study, we report the results of analyses of lithofacies, sediment color and geochemistry of bulk samples collected from the Xijigou section of the Xining Basin. An abrupt lithofacies change between the Early(~52–40 Ma) and Late Eocene(~40–34 Ma) indicates a change in the depositional environment from a shallow lake to a playa lake in response to a significant climatic shift. During ~52–40 Ma,higher values of sediment redness(a*), redness/lightness(a*/L*) and higher modified Chemical Index of Weathering(CIW′)indicate a relatively warm and humid climate, while from ~40–34 Ma the lower values of a*, a*/L*and lower CIW′ imply subhumid to semi-arid climatic conditions. The paleoclimatic records indicate a long-term(~52–34 Ma) trend of decreasing chemical weathering, consistent with global climate change. An abrupt sharp excursion of the proxy records during ~42–40 Ma suggests a relatively brief warm interval, corresponding to the Middle Eocene Climatic Optimum(MECO). We suggest that global cooling substantially reduced humidity in inner Asia, resulting in sub-humid to semi-arid climatic conditions after 40 Ma in the Xining Basin, which may have been responsible for the long-term trend of decreasing chemical weathering during the Eocene. | Abu Sadat Md SAYEM Zhengtang GUO Haibin WU Chunxia ZHANG Fan YANG Guoqiao XIAO Zhilin HE | 2018 | Science China Earth Sciences2018，61，9： | 6 |
| 4 | Improvement of a 3D radar backscattering model using matrix-doubling method显示文摘Radiative transfer models have been widely used to simulate the radar backscattering from forested areas. A three-dimensional radar backscatter model of forest canopy developed in previous studies takes full account of spatial position of trees in a forest stand, and the interactions among crown, trunk and ground surface. The model predicted well for the co-polarized backscatter measurements, but underestimated the backscattering for cross-polarization, primarily because only the first-order scattering within tree crowns was considered in the model. The backscattering at cross-polarization depends strongly on multiple scatter- ing within tree crowns. To produce good estimations for cross-polarized component, the matrix-doubling method is employed here to compute multiple-scattering within the crown. The modified model is compared with the original model, and the field forest measurements and AIRSAR data are used for validation of the modified model. The cross-polarization backscattering is improved in different degrees for different crown structures and at different bands. | NI WenJian1,2, GUO ZhiFeng1 & SUN GuoQing3 1 State Key Laboratory of Remote Sensing Science, jointly sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beijing 100101, China 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3 Department of Geography, University of Maryland, College Park, MD 27042, USA | 2010 | Science China Earth Sciences2010，53，7： | 4 |
| 5 | Surgical Treatment of Hepatocellular Carcinoma with Portal Vein Tumor Thrombus显示文摘 | Jie Shi MD Eric C. H. Lai MBChB MRCS(Ed) FRACS Nan Li MD Wei-Xing Guo MD Jie Xue MD Wan Yee Lau MD FRCS FACS FRACS(Hon) Meng-Chao Wu MD Shu-Qun Cheng MD | 2010 | Annals of Surgical Oncology2010，，8： | 2 |
| 6 | A Comparative Study of Antiviral Therapy After Resection of Hepatocellular Carcinoma in the Immune-Active Phase of Hepatitis B Virus Infection显示文摘 | Nan Li MD Eric C. H. Lai MBChB MRCS(Ed) FRACS Jie Shi MD Wei-Xing Guo MD Jie Xue MD Bing Huang MD Wan-Yee Lau MD FRCS FACS FRACS(Hon) Meng-Chao Wu MD Shu-Qun Cheng MD | 2010 | Annals of Surgical Oncology2010，，1： | 2 |
| 7 | A quasi-steady state model for predicting the heating requirements of conventional greenhouses in cold regions显示文摘A time-dependent,quasi-steady state thermal model(GREENHEAT)based on the lumped estimation of heat transfer parameters of greenhouses has been developed to predict the hourly heating requirements of conventional greenhouses.The model was designed to predict the hourly heating requirements based on the input of greenhouse indoor environmental control parameters,physical and thermal properties of crops and construction materials,and hourly weather data including temperature,relative humidity,wind speed,and cloud cover.The model includes all of the heat transfer parameters in greenhouses including the heat loss for plant evapotranspiration,and the heat gain from environmental control systems.Results show that the predicted solar radiation data from the solar radiation sub-model are a reasonable fit with the data from the National Solar Radiation Database(NSRDB).Thermal analysis indicates environmental control systems could reduce 13–56%of the total heating requirements over the course of a year in the study greenhouse.During the winter season,the highest amount of greenhouse heat is lost due to conduction and convection,and the heat used for evapotranspiration is dominant in the summer.Finally,the model was validated with actual heating data collected from a commercial greenhouse located in Saskatoon,and the results show that the model satisfactorily predicts the greenhouse heating requirements. | Md Shamim Ahamed Huiqing Guo Karen Tanino | 2018 | Information Processing in Agriculture2018，5，1： | 2 |
| 8 | Chemoradiotherapy of locally advanced esophageal cancer : long - term follow - up of a prospective randomized trial( RTOG 85 -01 ) 显示文摘 | Cooper JS Guo MD Herskovic | 1999 | JAMA1999，281，17： | 1 |
| 9 | Application of redefined human chorionic gonadotropin curves for the diagnosis of women at risk for ectopic pregnancy显示文摘 | Seeber BE Sammel MD Guo W | 2006 | Fertil Steril2006，86，2： | 1 |
| 10 | Magnetic switch of permeability for polyelectrolyte microcapsules embedded with Co@Au nanoparticles显示文摘 | Lu ZH Prouty MD Guo ZH | | 0，，05： | 1 |
| 11 | IL-17B Can Impacton Endothelial Cellular Traits Linked to Tumour Angio-genesis 显示文摘 | Sanders AJ Guo X Mason MD | 2010 | J Oncol2010，2010，81： | 1 |
| 12 | Effect of a novel adsorbent on cytoking responsiveness to uremic plasma显示文摘 | Morena MD Guo D Balakirishna VS | 2003 | Kidney Int2003，63，3： | 1 |
| 13 | Effect of noveladsorbent on cytokineresponsiveness to uremic plasma显示文摘 | Morena MD Guo D Balakrishnan VS | | 0，，03： | 1 |
| 14 | Chemoradiotherapy of locally advanced esophageal cancer:long-term follow-up of aprospective randomized trial(RTOG 85-01)Radiation Therapy On eology Group显示文摘 | Guo MD Herskovic A | 1999 | JAMA1999，281，17： | 1 |
| 15 | Electrochemical detection of short sequences related to the hepatitis B virus using MB on chitosan modified CPE显示文摘 | Guo MD Li YQ Guo HX | 2007 | Bioelectro Chemistry2007，70，： | 1 |
| 16 | Nucleated Red Blood Cells in Maternal Blood During Pregnancy显示文摘 | PAO-LIN KUO MD HOW-RAN GUO | 1999 | Obstetrics & Gynecology1999，94，： | 1 |
| 17 | Chemoradiotherapy of loca-lly advanced esophageal cancer:long-term follow-up of a prosp-ective randomized trial(RTOG 85-01)显示文摘 | Cooper JS Guo MD Herskovic A | 1999 | JAMA1999，281，17： | 1 |
| 18 | Magnetic switch of permeability for polyelectrolyte microcapsules embedded with Co@Au nanoparticles显示文摘 | Lu Z Prouty MD Guo Z | 2005 | Langmuir2005，21，5： | 1 |
| 19 | Effects of florfenicol exposure on growth,development and antioxidant capacity of flounder Paralichthys olivaceus larvae at different developmental stages显示文摘Antibiotics are widespread in various environmental media,and may pose a potential threat to aquatic ecosystems and non-target aquatic organisms.Florfenicol(FLO)is one of the most commonly used antibiotics in aquaculture,and extensively used to substitute chloramphenicol with its strong sterilization and low adverse ef fect.In this study,flounder Paralichthys olivaceus,an important economic fish species in seawater was used as an experimental subject.Five exposure concentrations of FLO(including environmentrelated concentrations)were set at 0,0.01,0.1,1,and 10 mg/L.Ef fects of FLO exposure for 168 h on growth and development,motor behavior,antioxidant enzyme activity,malondialdehyde(MDA)content,and thyroid hormone level of P.olivaceus larvae were studied in pre-larvae(1 dpf)and post-larvae(20 dpf).The results show that the short-term FLO exposure could promote the larvae growth to some degrees,but inhibit them as the exposure time prolonged.For pre-larvae,FLO at 0.01 mg/L could stimulate the motor nerve system and increase the swimming ability,but inhibited it at 1 mg/L.With the increasing dosage of FLO,the superoxide dismutase(SOD)and MDA contents were elevated,reaching the maximum in the 1 mg/L FLO group.The pre-larvae were more sensitive than the post-larvae to FLO in the environment,and the growth and immune resistance could be damaged with long exposure.Post-larvae were more tolerant to external pollutants,FLO at 1 mg/L could promote the motor behavior and reduce SOD and MDA contents.Therefore,FLO can be used as an antibiotic at a proper concentration but as a drug to prevent disease in a long-term way. | GUO Rui ZHANG Yingqi ZHANG Xianyu ZHANG Qian CHENG Rui MD MOSTAFIZUR Rahman LIU Ying | 2020 | Journal of Oceanology and Limnology2020，38，2： | 1 |
| 20 | The N Ratio Predicts Recurrence and Poor Prognosis in Patients With Node-Positive Early Gastric Cancer显示文摘 | Jae-Ho Cheong MD Woo Jin Hyung MD Jian Guo Shen MD Changsoo Song MD Junuk Kim MD Seung Ho Choi MD Sung Hoon Noh MD PhD | 2006 | Annals of Surgical Oncology2006，，3： | 1 |
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