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| 1 | A physics-based statistical algorithm for retrieving land surface temperature from AMSR-E passive microwave data显示文摘AMSR-E and MODIS are two EOS (Earth Observing System) instruments on board the Aqua satellite. A regression analysis between the brightness of all AMSR-E bands and the MODIS land surface tem-perature product indicated that the 89 GHz vertical polarization is the best single band to retrieve land surface temperature. According to simulation analysis with AIEM,the difference of different frequen-cies can eliminate the influence of water in soil and atmosphere,and also the surface roughness partly. The analysis results indicate that the radiation mechanism of surface covered snow is different from others. In order to retrieve land surface temperature more accurately,the land surface should be at least classified into three types:water covered surface,snow covered surface,and non-water and non-snow covered land surface. In order to improve the practicality and accuracy of the algorithm,we built different equations for different ranges of temperature. The average land surface temperature er-ror is about 2―3℃ relative to the MODIS LST product. | MAO KeBiao SHI JianCheng LI ZhaoLiang QIN ZhiHao LI ManChun XU Bin | 2007 | Science China Earth Sciences2007，50，7： | 16 |
| 2 | Review of Remotely Sensed Imagery Classification Patterns Based on Object-oriented Image Analysis显示文摘With the wide use of high-resolution remotely sensed imagery, the object-oriented remotely sensed informa- tion classification pattern has been intensively studied. Starting with the definition of object-oriented remotely sensed information classification pattern and a literature review of related research progress, this paper sums up 4 developing phases of object-oriented classification pattern during the past 20 years. Then, we discuss the three aspects of method- ology in detail, namely remotely sensed imagery segmentation, feature analysis and feature selection, and classification rule generation, through comparing them with remotely sensed information classification method based on per-pixel. At last, this paper presents several points that need to be paid attention to in the future studies on object-oriented RS in- formation classification pattern: 1) developing robust and highly effective image segmentation algorithm for multi-spectral RS imagery; 2) improving the feature-set including edge, spatial-adjacent and temporal characteristics; 3) discussing the classification rule generation classifier based on the decision tree; 4) presenting evaluation methods for classification result by object-oriented classification pattern. | LIU Yongxue LI Manchun MAO Liang XU Feifei HUANG Shuo | 2006 | Chinese Geographical Science2006，16，3： | 9 |
| 3 | Isolation,purification and characterization of secondary structure of antifreeze protein from Ammopiptanthus mongo-licus显示文摘Antifreeze protein (AFP) from Ammopiptanthus mongolicus leaves was isolated and purified with DEAE cellulose 52, Sephacryl 300, heat treatment and preparative isotachophoresis. The molecular weight of AFP was 50 ku by SDS-PAGE measurement. The average thermal hysteresis activity (THA) of AFP was 0.35℃ at 5 mg/mL using a differential scanning calorimeter (DSC). This AFP showed heated stability. From circular dichroism (CD) of AFP spectral data from 195-240 nm, a well-defined secondary structure of 11% a-helix, 34% antiparallel β-sheet and 55% random coil for the plant AFP was deduced. | FEI Yunbiao WEI Lingbo GAO Suqin LU Manchun WANG Baohuai LI Zhifen ZHANG Youming SHU Nianhong JIANG Yong WANG Weixiang | 2001 | Chinese Science Bulletin2001，46，6： | 8 |
| 4 | Characterization of Air Pollution in Urban Areas of Yangtze River Delta,China显示文摘The hallmark of development in the Yangtze River Delta(YRD) of East China has been sprawling urbanization. However, air pollution is a significant problem in these urban areas. In this paper, we investigated and analyzed the air pollution index(API) in four cities(Shanghai, Nanjing, Hangzhou and Ningbo) in the YRD from 2001 to 2012. We attempted to empirically examine the relationship between meteorological factors and air quality in the urban areas of the YRD. According to the monitoring data, the API in Shanghai, Nanjing, Hangzhou slightly declined and that in Ningbo increased over the study period. We analyzed the inter-annual, seasonal, and monthly variations of API, from which we found that the air quality had different temporal changes in the four cities. It was indicated that air quality was poor in winter and spring and best in summer. Furthermore, different weather conditions affected air quality level. The wind direction was considered as an important and influential factor to air pollution, which has an impact on the accumulating or cleaning processes of pollutants. The air quality was influenced by the different wind directions that varied with seasons and cities. | CHEN Tan DENG Shulin GAO Yu QU Lean LI Manchun CHEN Dong | 2017 | Chinese Geographical Science2017，27，5： | 7 |
| 5 | Survey of reefs based on Landsat 8 operational land imager(OLI)images in the Nansha Islands, South China Sea显示文摘A detailed survey of the reefs in the Nansha Islands' sea that are of strategic importance is conducive to their future development. In this study, a total of 50 Landsat 8 operational land imager(OLI) images were used to analyze the geological features and spectral characteristics of the Nansha reefs. The exposed islands/sandbanks,reef flats and sub-tidal reefs were identified with the near-infrared band, the red and green bands, and the blue band, respectively. Based on the relationships among various characteristics and bands illustrated in the OLI images, the maximum between-cluster variance threshold algorithm(OTSU method) and the mathematical morphology were employed to extract characteristic parameters of the spatial geometry of the reefs from top to bottom, which were subsequently operated by a series of post-processing methods such as vectorization,simplification and topological analysis. Among the 132 standalone reefs and 16 atolls that are identified in the study, four reefs have yet to be named in the Standard Names of Various Islands in the South China Sea and the website Nansha Islands Online(http://gffzzd4db47f6efa542b8hbxuo66fofn596c9w.ffgz.tsg.suse.edu.cn/). Another 24 ones are exposed to the atmosphere even during high tides. Taiping Island with an area of 0.57 km^2 represents the largest exposed geological feature. This study demonstrated the applicability of medium-resolution satellite images to derive the coral reef information effectively and thus provided information for the related departments that are responsible to manage the coast.An improved resolution of multispectral bands with the panchromatic band in higher spatial resolution(15 m for OLI image) is expected to provide an optimum satellite based approach to map marine habitats. | DUAN Yuewei LIU Yongxue LI Manchun ZHOU Minxi YANG Yuhao | 2016 | Acta Oceanologica Sinica2016，35，10： | 5 |
| 6 | Using big data to track marine oil transportation along the 21st-century Maritime Silk Road显示文摘China's designation of the '21 st-century Maritime Silk Road'(MSR) region is of extraordinary significance to its maritime rights, transportation security, and socio-economic development. We developed a technical framework allowing the use of 'big data' derived from the Automatic Identification System(AIS, an automatic ship-tracking network) for two purposes: the accurate mapping of oil tanker trajectories and the creation of heat maps showing the relative use of oil tanker routes and marine shipping chokepoints. We then applied these methods to 1.5 billion AIS records collected within the MSR in 2014 to statistically identify and analyze busy routes, areas, and chokepoints in this strategic region. Our results demonstrate that the proposed framework can provide an effective analysis of oil movements based on large-scale AIS datasets, helping researchers and policy makers better understand the footprint and strategic implications of maritime oil transportation in the MSR region. | CHENG Liang YAN ZhaoJin XIAO YiJia CHEN YanMing ZHANG FangLi LI ManChun | 2019 | Science China(Technological Sciences)2019，62，4： | 3 |
| 7 | A Modified Self-adaptive Method for Mapping Annual 30-m Land Use/Land Cover Using Google Earth Engine:A Case Study of Yangtze River Delta显示文摘Annual Land Use/Land Cover(LULC)change information at medium spatial resolution(i.e.,at 30 m)is used in applications ranging from land management to achieving sustainable development goals related to food security.However,obtaining annual LULC information over large areas and long periods is challenging due to limitations on computational capabilities,training data,and workflow design.Using the Google Earth Engine(GEE),which provides a catalog of multi-source data and a cloud-based environment,we developed a novel methodology to generate a high accuracy 30-m LULC cover map collection of the Yangtze River Delta by integrating free and public LULC products with Landsat imagery.Our major contribution is a hybrid approach that includes three major components:1)a high-quality training dataset derived from multi-source LULC products,filtered by k-means clustering analysis;2)a yearly 39-band stack feature space,utilizing all available Landsat data and DEM data;and 3)a self-adaptive Random Forest(RF)method,introduced for LULC classification.Experimental results show that our proposed workflow achieves an average classification accuracy of 86.33%in the entire Delta.The results demonstrate the great potential of integrating multi-source LULC products for producing LULC maps of increased reliability.In addition,as the proposed workflow is based on open source data and the GEE cloud platform,it can be used anywhere by anyone in the world. | QU Le’an LI Manchun CHEN Zhenjie ZHI Junjun | 2021 | Chinese Geographical Science2021，31，5： | 2 |
| 8 | HY5-HDA9 orchestrates the transcription of HsfA2 to modulate salt stress response in Arabidopsis显示文摘Integration of light signaling and diverse abiotic stress responses contribute to plant survival in a changing environment.Some reports have indicated that light signals contribute a plant’s ability to deal with heat,cold,and stress.However,the molecular link between light signaling and the saltresponse pathways remains unclear.We demonstrate here that increasing light intensity elevates the salt stress tolerance of plants.Depletion of HY5,a key component of light signaling,causes Arabidopsis thaliana to become salinity sensitive.Interestingly,the small heat shock protein(sHsp)family genes are upregulated in hy5-215 mutant plants,and HsfA 2 is commonly involved in the regulation of these sH sps.We found that HY5directly binds to the G-box motifs in the HsfA2promoter,with the cooperation of HISTONE DEACETYLASE 9(HDA9),to repress its expression.Furthermore,the accumulation of HDA9 and the interaction between HY5 and HDA9 are significantly enhanced by salt stress.On the contrary,high temperature triggers HY5 and HDA9 degradation,which leads to dissociation of HY5-HDA9from the HsfA2 promoter,thereby reducing salt tolerance.Under salt and heat stress conditions,fine tuning of protein accumulation and an interaction between HY5 and HDA9 regulate HsfA2 expression.This implies that HY5,HDA9,and HsfA2play important roles in the integration of light signaling with salt stress and heat shock response. | Jiaheng Yang Xiao Qu Tao Li Yixiang Gao Haonan Du Lanjie Zheng Manchun Ji Paifeng Zhang Yan Zhang Jinxin Hu Liangyu Liu Zefu Lu Zijian Yang Huiyong Zhang Jianping Yang Yongqing Jiao Xu Zheng | 2023 | Journal of Integrative Plant Biology2023，65，1： | 1 |
| 9 | 3D Building Model Reconstruction from Multi-view Aeri- al Imagery and Lidar Data显示文摘 | Cheng Liang Gong Jianya Li Manchun Liu Yongxue | 2011 | Photogrammetrie Engi- neering & Remote Sensing2011，77，2： | 1 |
| 10 | 3D Building Model Reconstruction from Multi-view Aerial Imagery and LiDAR Data显示文摘 | Cheng Liang Gong Jianya Li Manchun | | 0，，02： | 1 |
| 11 | Topographic Mapping of Offshore Sandbank Tidal Flats Using the Waterline Detection Method: A Case Study on the Dongsha Sandbank of Jiangsu Radial Tidal Sand Ridges, China显示文摘 | Yongxue Liu Manchun Li Liang Cheng Feixue Li Kefeng Chen | 2012 | Marine Geodesy2012，，4： | 1 |
| 12 | IA-SDSS: A GIS-based land use decision support system with consideration of carbon sequestration显示文摘 | Jun Wang Jingming Chen Weimin Ju Manchun Li | 2009 | Environmental Modelling and Software2009，，4： | 1 |
| 13 | Safety assessment of shiping routes in the South China Sea based on the fuzzy analytic hierarchy process 显示文摘 | WANG Jiasheng LI Manchun LIU Yongxue | 2014 | Saftey Science2014，62，2： | 1 |
| 14 | Using Construction Expansion Regulation Zones to Manage Urban Growth in Hefei City, China显示文摘 | Qiuhao Huang Manchun Li Yongxue Liu Wei Hu Min Liu Zhenjie Chen Feixue Li | 2013 | Journal of Urban Planning and Development2013，，1： | 1 |
| 15 | The GIS Application on Highway Construction显示文摘 | Cheng Yi Li Manchun | 1998 | Bulletin of Science And Technology1998，14，2： | 1 |
| 16 | Simulation of China’s potential rice yields by coupling land system evolution and climate change显示文摘Land systems and climate,which are the key elements of agricultural production and key drivers of crop yields,affect the quality of arable land.However,a quantitative model to reveal the mechanism of how potential grain yields are affected by macro-scale arable land evolution and climate change has not yet been developed.In this study,we constructed a Grey Prediction Model-Future Land Use Simulation(GM-FLUS),which combined land system evolution with climate change data,to simulate changes in China’s land system over the next 40 years.We improved the Global Agro-Ecological Zone(GAEZ)model,estimated China’s potential rice yields and their spatial distribution in the next 40 years under four scenarios(shared socioeconomic pathway SSP1-2.6,SSP2-4.5,SSP3-7.0,and SSP5-8.5)of the Sixth International Coupling Model Intercomparison Project,analysed the spatiotemporal variations in the potential rice yields and their drivers,and provided appropriate suggestions for increasing rice yields.The simulation results indicated an increase in China’s potential rice yields during 2020–2060 under the SSP1-2.6 and SSP3-7.0 scenarios and a decrease under the SSP2-4.5 and SSP5-8.5 scenarios.Moreover,China’s development strategy of“achieving carbon peaking by 2030 and carbon neutrality by 2060”was similar to the SSP1-2.6 scenario,under which rice yields were relatively stable.Furthermore,under China’s arable land protection policy,China’s paddy field area will change slightly during 2020–2060,and potential rice yields will be influenced by climate.Under the four climate change scenarios,air temperature increased and was negatively correlated with potential rice yields in main rice-producing regions.Additionally,potential rice yields were positively correlated with precipitation,which increased stably under the SSP1-2.6 and SSP3-7.0scenarios and decreased under the SSP2-4.5 and SSP5-8.5 scenarios.These results suggest that the development of heat-resistant rice varieties and the implementation of measures that will mitigate the impacts of future temperature increases on rice yields are important for the conservation of paddy fields.Additionally,improving irrigation and drainage facilities is necessary to irrigate drought-prone paddy fields and drain flooded water. | Manchun LI Cong DU Penghui JIANG Wenbo LUAN Dengshuai CHEN | 2023 | Science China Earth Sciences2023，66，8： | 1 |
| 17 | Estimating relationships between NDVI and climate changes in Guizhou province,Southwest China显示文摘 | MAO Kun LI Manchun HUANG Qiuhao | | 0，，20： | 1 |
| 18 | Land Banking: A Mechanism for Urban SustainableDevelopment in China显示文摘 | Qun Zhang Wen Zhang Manchun Li Qiuhao Huang | 2012 | AMBIO: A Journal of the HumanEnvironment2012，41，： | 1 |
| 19 | Quantitative risk analysis of urban natural gas pipeline networks using geographical information systems显示文摘 | Lei Ma Liang Cheng Manchun Li | 2013 | Journal of Loss Prevention in the Process Industries2013，，： | 1 |
| 20 | 3D Building Model Reconstruction from Multi - view Aeri- al Imagery and Lidar Data显示文摘 | Cheng Liang Gong Jianya Li Manchun Liu Yongxue | 2011 | Photogrammetric Engineer- ing & Remote Sensing2011，77，2： | 1 |
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