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Remote sensing of cyanobacterial blooms in inland waters: present knowledge and future challenges

Science Bulletin 2019年第20期64卷 1540-1556页

作者： Kun Shi Yunlin Zhang Boqiang Qin Botian Zhou Taihu Laboratory for Lake Ecosystem Research State Key Laboratory of Lake Science and EnvironmentNanjing Institute of Geography and LimnologyChinese Academy ofSciencesNanjing210008China University of Chinese Academy of Sciences Beijing100049China Center for Excellence in Tibetan Plateau Earth Sciences Chinese Academy of SciencesBeijing100101China Chongqing Key Laboratory of Big Data and Intelligent Computing Chongqing Institute of Green and Intelligent TechnologyChinese Academy of SciencesChongqing400714China

Timely monitoring, detection and quantification of cyanobacterial blooms are especially important for controlling public health risks and understanding aquatic ecosystem dynamics. Due to the advantages of simultaneous data acquisition over large geographical areas and high temporal coverage, remote sensing strongly facilitates cyanobacterial bloom monitoring in inland waters. We provide a comprehensive review regarding cyanobacterial bloom remote sensing in inland waters including cyanobacterial optical characteristics, operational remote sensing algorithms of chlorophyll, phycocyanin and cyanobacterial bloom areas, and satellite imaging applications. We conclude that there have many significant progresses in the remote sensing algorithm of cyanobacterial pigments over the past 30 years. The band ratio algorithms in the red and near-infrared(NIR) spectral regions have great potential for the remote estimation of chlorophyll a in eutrophic and hypereutrophic inland waters, and the floating algae index(FAI) is the most widely used spectral index for detecting dense cyanobacterial blooms. Landsat, MODIS(Moderate Resolution Imaging Spectroradiometer) and MERIS(MEdium Resolution Imaging Spectrometer) are the most widely used products for monitoring the spatial and temporal dynamics of cyanobacteria in inland waters due to the appropriate temporal, spatial and spectral resolutions. Future work should primarily focus on the development of universal algorithms, remote retrievals of cyanobacterial blooms in oligotrophic waters, and the algorithm applicability to mapping phycocyanin at a large spatial-temporal scale. The applications of satellite images will greatly improve our understanding of the driving mechanism of cyanobacterial blooms by combining numerical and ecosystem dynamics models.

关键词： Cyanobacterial blooms inland waters Bio-optical properties Satellite MODIS

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Sedimentary Facies, Sequence Stratigraphic Patterns in Pre-Cenozoic inland Compressional Basin: Example from Early Yanshanian Succession of Eastern Yihezhuang Salient, Jiyang Depression, Bohai Bay Basin, China

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Journal of Earth Science 2019年第1期30卷 194-205页

作者： Guangzeng Song Hua Wang Meng Xu Jinda Xu Guoqing Sang School of Resources and Environment University of Jinan Shandong Provincial Key Laboratory of Depositional Mineralization & Sedimentary Minerals Shandong University of Science and Technology Faculty of Earth Resources China University of Geosciences No.1 Institute of Geology and Mineral Resources of Shandong Province Geological Surveying & Mapping Institute of Shandong Province

To improve the success rate of locating hydrocarbon reservoirs in pre-Cenozoic inland compressional basins, taking the Early Yanshanian succession of eastern Yihezhuang salient as an example, this paper studied the sedimentary facies and sequence stratigraphic patterns. First, through seismic profiles, well logs, cores and outcrops, the sequence framework was established and internal sedimentary facies were identified. Further, according to analysis of single-wells and connecting-wells, the vertical evolution and horizontal distribution of sedimentation inside the sequence frameworks were discussed. The following results were acquired:(1) meandering river characterized by dual structures superposing each other was developed, and the dual structures can be further divided into three kinds;(2) the entire Early Yanshanian succession was interpreted as one first-order sequence, composed of three third-order sequences, including SQ-Fz1, SQ-Fz2 and SQ-St from bottom to top. Each third-order sequence can be further divided into three system tracts;(3) in different system tracts, different types of dual structures developed separately, and sedimentary bodies showed different horizontal distribution scales and vertical superposition patterns. Finally, the model of sequence stratigraphic patterns was established. This study enhanced the use of sequence stratigraphy to inland tectonically active basins, and would be helpful to predict reservoirs in pre-Cenozoic residual basins.

关键词： Early Yanshanian succession sequence stratigraphic patterns inland compressional basin meandering river dual structure

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Relationship　between　faults　and　generation　of　inland　shallow　earthquakes:enlighten-ment　of　the　M=7.2

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Acta Seismologica Sinica(English Edition) 1998年第4期11卷 413-420页

作者： Toru Ouchi Qing-Hua Huang Research Center for Urban Safety and Security Kobe University Kobe Japan Department of Earth and Space Sciences Graduate School of Science Osaka University Osaka Japan

Ｒｅｌａｔｉｏｎｓｈｉｐｂｅｔｗｅｅｎｆａｕｌｔｓａｎｄｇｅｎｅｒａｔｉｏｎｏｆｉｎｌａｎｄｓｈａｌｌｏｗｅａｒｔｈｑｕａｋｅｓ：ｅｎｌｉｇｈｔｅｎ－ｍｅｎｔｏｆｔｈｅＭ＝７．２ｓｏｕｔｈｅｒｎＨｙｏｇｏｐｒｅｆｅｃ... 详细信息

Ｒｅｌａｔｉｏｎｓｈｉｐｂｅｔｗｅｅｎｆａｕｌｔｓａｎｄｇｅｎｅｒａｔｉｏｎｏｆｉｎｌａｎｄｓｈａｌｌｏｗｅａｒｔｈｑｕａｋｅｓ：ｅｎｌｉｇｈｔｅｎ－ｍｅｎｔｏｆｔｈｅＭ＝７．２ｓｏｕｔｈｅｒｎＨｙｏｇｏｐｒｅｆｅｃ－ｔｕｒｅｅａｒｔｈｑｕａｋｅＴＯ...

关键词： generation inland shallow earthquakes M Relationship

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A model for simulating the response of runoff from the mountainous watersheds of inland river basins in the arid area of northwest China to climatic changes

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Science China Earth Sciences 1999年第S1期42卷 52-63页

作者：康尔泗程国栋蓝永超金会军 State Key Laboratory of Frozen Soil Engineering Lanzhou Institute of Glaciology and Geocryology Chinese Academy of Sciences

A model for simulating the response of monthly runoff from the mountainous watersheds to climatic changes is developed. The model is based on the modifications to the HBV runoff model, and therefore represents the characteristics and runoff generation processes of inland river basins in the arid area of northwest China. Taking the mountainous watershed of an inland river, the Heihe River originating from the Qilian Mountains and running through the Hexi Corridor as an example, the monthly runoff changes under different climate scenarios are simulated. The simulation indicates that, during the years from 1994 to 2030, if the annual mean air temperature increases by 0.5℃ , and precipitation keeps unchanged, then the runoff of May and October will increase because of the increase of the snow melt runoff, but the runoff of July and August will decrease to some extent because of the increase of evaporation, and as a result, the annual runoff will decrease by 4 % . If the precipitation still keeps unchanged, and the air temperature increases by 1.0℃ , in addition to the increase of runoff of May and June, the runoff of July and August will decrease in a larger amount, making the annual runoff decrease by 7.11 % . If the air temperature keeps unchanged, the increase of annual precipitation by 10% will cause the increase of runoff by 5 .27% ; while the increase of precipitation by 20% will cause the increase of runoff by 12.35% . When the air temperature increases by 0.5℃ and the precipitation increases by 10% , the runoff will increase only by 1.62% .

关键词： inland river basins runoff from mountainous watersheds climatic changes response.

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Hydrological and water cycle processes of inland river basins in the arid region of Northwest China

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Journal of Arid Land 2019年第2期11卷 161-179页

作者： CHEN Yaning LI Baofu FAN Yuting SUN Congjian FANG Gonghuan State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences School of Geography and Tourism Qufu Normal University Key Laboratory of Tree-Ring Physical and Chemical Research of China Meteorological Administration/Xinjiang Laboratory of Tree Ring Ecology Institute of Desert MeteorologyChina Meteorological Administration School of Geographical Science Shanxi Normal University

The increasing shortage in water resources is a key factor affecting sustainable socio-economic development in the arid region of Northwest China(ARNC). Water shortages also affect the stability of the region's oasis ecosystem. This paper summarizes the hydrological processes and water cycle of inland river basins in the ARNC, focusing on the following aspects: the spatial-temporal features of water resources(including air water vapor resources, runoff, and glacial meltwater) and their driving forces; the characteristics of streamflow composition in the inland river basins; the characteristics and main controlling factors of baseflow in the inland rivers; and anticipated future changes in hydrological processes and water resources. The results indicate that:(1) although the runoff in most inland rivers in the ARNC showed a significant increasing trend, both the glaciated area and glacial ice reserves have been reduced in the mountains;(2) snow melt and glacier melt are extremely important hydrological processes in the ARNC, especially in the Kunlun and Tianshan mountains;(3) baseflow in the inland rivers of the ARNC is the result of climate change and human activities, with the main driving factors being the reduction in forest area and the over-exploitation and utilization of groundwater in the river basins; and(4) the contradictions among water resources, ecology and economy will further increase in the future. The findings of this study might also help strengthen the ecological, economic and social sustainable development in the study region.

关键词： water resources climate change river runoff baseflow streamflow composition inland river basin arid region of Northwest China

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Performances of conventional fusion methods evaluated for inland water body observation using GF-1 image

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Acta Oceanologica Sinica 2019年第1期38卷 172-179页

作者： Yong Du Xiaoyu Zhang Zhihua Mao Jianyu Chen School of Earth Sciences Zhejiang University School of Biology and the Environment Jiyang College of Zhejiang A&F University State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of Oceanography Ministry of Natural Resources

Satellite remote sensing of inland water body requires a high spatial resolution and a multiband narrow spectral resolution, which makes the fusion between panchromatic(PAN) and multi-spectral(MS) images particularly important. Taking the Daquekou section of the Qiantang River as an observation target, four conventional fusion methods widely accepted in satellite image processing, including pan sharpening(PS), principal component analysis(PCA), Gram-Schmidt(GS), and wavelet fusion(WF), are utilized to fuse MS and PAN images of *** results of subjective and objective evaluation methods application indicate that GS performs the best,followed by the PCA, the WF and the PS in the order of descending. The existence of a large area of the water body is a dominant factor impacting the fusion performance. Meanwhile, the ability of retaining spatial and spectral informations is an important factor affecting the fusion performance of different fusion methods. The fundamental difference of reflectivity information acquisition between water and land is the reason for the failure of conventional fusion methods for land observation such as the PS to be used in the presence of the large water body. It is suggested that the adoption of the conventional fusion methods in the observing water body as the main target should be taken with caution. The performances of the fusion methods need re-assessment when the large-scale water body is present in the remote sensing image or when the research aims for the water body observation.

关键词： GF-1 satellite image fusion methods fusion evaluation inland water body

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The reconstruction and interpretations of lake status at 6 ka and 18 ka *** inland mainland Asia

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Chinese Science Bulletin 1998年第14期43卷 1145-1157页

作者： QIN Boqiang 1, SHI Yafeng 1 and YU Ge 2, 3 1. Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing 210008, China 2. Dynamic Palaeoclimatology, Lund University, PO Box 117, S 221 00, Lund, Sweden 3. Department of Nanjing Institute of Geography & Limnolagy Chinese Academy of Sciences Nanjing China Dynamic Palaeoclimatology Lund University Lund Sweden Department of Geology and Ocean Sciences Nanjing University Nanjing China

By means of survey of literature through compilations of sedimentological, biogeological and geomorphologic data, the inland lake level changes in arid or semi arid mainland Asia at 6 and 18 ka B.P. have been reconstructed. The results showed that the lakes from western and northwestern Asia were characterized by very high water levels at 18 ka B.P., but low or intermediate water stands at 6 ka B.P. The high lake level in this region was associated with the southward displacement of westerlies, therefore, the extent of the high lake stand indicated the southern flank of westerlies during the glaciation. Conversely, the lakes from the eastern and southern Asia registered comparative low levels at 18 ka B.P. and significantly high one at 6 ka B.P. The lowering of lake level at 18 ka B.P. was caused by the weakened summer monsoon and the high lake level at 6 ka B.P. by the enhanced summer monsoon induced by the enlarged thermal contrast between land and ocean. The extent of high lake levels indicated the northern boundary of monsoon expansion. Between the above two regions, there is a climatic transitional zone in the Central Asia where the lake behavior was close to that in southeastern Asia at 6 ka B.P. but became similar to that in northwestern Asia at 18 ka B.P. Thus this zone became a transitional sector from the monsoon to the westerlies.

关键词： lake status inland mainland Asia westerlies monsoon.

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Emergence of Autochthonous Melioidosis in Two inland PLADs-China, 2021

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China CDC weekly 2022年第47期4卷 1055-1058页

作者： Yong Sun Meng Yang Shoujie Yu Jiang Liu Weiwei Li Jiaming Tian Guiyi Huang Jinrong He Wei Li Xiao Zheng Anhui Provincial Center for Disease Control and Prevention Hefei CityAnhui ProvinceChina Jiangxi Provincial Center for Disease Control and Prevention Nanchang CityJiangxi ProvinceChina Huainan Municipal Center for Disease Control and Prevention Huainan CityAnhui ProvinceChina Nanfeng County Center for Disease Control and Prevention Fuzhou CityJiangxi ProvinceChina National Institute for Communicable Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijing MunicipalityChina State Key Laboratory of Infectious Disease Prevention and Control Beijing MunicipalityChina.

Summary What is already known about this topic?Melioidosis,a tropical infectious disease caused by Burkholderia pseudomallei(BP)infection,is endemic in the southern coastal provincial-level administrative divisions(PLADs)of *** is added by this report?Three melioidosis cases,including two in young children and one in a 19-year-old female,were reported in Anhui and Jiangxi(two inland PLADs of China)respectively,in *** of the patients had a travel history to a melioidosis-endemic *** the BP isolates belonged to the same sequence type(ST51),which had been reported from elsewhere in Southeast Asia.

关键词： Anhui inland travel

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A paleo-hydrological simulation experiment and its verification in an inland basin

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Research in Cold and Arid Regions 2019年第4期11卷 267-282页

作者： YuXin Zhang Yu Li XinZhong Zhang ChengQi Zhang WangTing Ye Yuan Liu Key Laboratory of Western China's Environmental Systems(Ministry of Education) College of Earth and Environmental SciencesCenter for Hydrologic Cycle and Water Resources in Arid RegionLanzhou UniversityLanzhouGansu 730000China Key Laboratory of Ecohydrology of inland River Basin/Gansu Hydrology and Water Resources Engineering Research Center Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhouGansu 730000China

Hydrological circulation,as the most basic material cycle and active natural phenomenon on earth,exerts a significant in fluence on climate *** mid-Holocene is an important period to better understand modern environmental change;however,little research has focused on its quantitative simulation of paleo-hydrological *** this research,we first collected chronological evidence and sediment records from six Holocene sedimentary sections in the Shiyang River Ba sin to reconstruct the mid-Holocene environment and terminal paleo-lake ***,we comprehensively analyzed modern pollen combinations and their propagation characteristics in surface soil,air,river and lacustrine sediments in the Shiyang River Basin,and combined the pollen records,as well as quantitatively reconstructed the millennial-scale vegeta tion ***,based on the land-cover adjustment results during the mid-Holocene,we successfully used the Soil and Water Assessment Tool(SWAT)model,a modern distributed hydrological watershed model,to simulate mid-Holocene runoff in the *** show that the reconstructed climate in the basin was warmer and moister than that in recent *** types in the mid-Holocene mainly consisted of sub-alpine shrub distributed between 2,550 m and 2,750 m,forest at an elevation of 2,550 2,750 m,steppe at an elevation of 1,550 2,150 m and desert steppe below 1,550 *** up stream,midstream,downstream and average annual runoff of the mid-Holocene in the basin were 16.76×10^8 m^3,22.86×10^8 m^3,9.00×10^8 m^3 and 16.20×10^8 m^3 respectively,compared to 15.61×10^8 m^3 of modern annual ***,the area of terminal paleo-lake in the mid-Holocene was 628 km^***,this study provides a new quantitative method for paleo-hy drological simulation.

关键词： SWAT model inland basin vegetation reconstruction runoff simulation mid-Holocene

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Vulnerability of inland and coastal aquaculture to climate change: Evidence from a developing country

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Aquaculture and Fisheries 2019年第5期4卷 183-189页

作者： Md Monirul Islam Aparna Barman Goutam Kumar Kundu Md Alamgir Kabir Bijoya Paul Interdisciplinary Centre for Conservation Science Department of ZoologyUniversity of OxfordOxford OX13PSUK Department of Fisheries University of DhakaDhaka 1000Bangladesh School of Earth Sciences and Environmental Engineering Gwangju Institute of Science and Technology123 Cheomdangwagi-roBuk-guGwangju 61005South Korea

Developing countries,which contribute 90%of global aquaculture production,are considered global climate risk ***,no study focuses on measuring district-or sub-national-level aquaculture vulnerability to climatic hazards or *** study has measured the level of aquaculture vulnerability to climate variability and change in all 64 districts of Bangladesh using a composite vulnerability index approach(using 19 climatic,environmental and socio-economic indicators)and geographical information system(GIS).The results reveal that aquaculture in 12 districts namely Satkhira,Mymensingh,Panchagarh,Lalmonirhat,Nilphamari,Thakurgaon,Sunamganj,Dinajpur,Kurigram,Noakhali,Lakshmipur,and Cox's Bazar have very high vulnerability(in order of highest to lowest vulnerability),which are explained by their higher level of exposure,moderate level of sensitivity,and lower to moderate level of adaptive *** these,8 districts belong to inland and 4 districts to coastal regions of the *** districts,namely Dhaka,Chittagong,and Bandarban,have the lowest level of aquaculture vulnerability(in order of lowest to highest vulnerability)mainly because of very high adaptive capacity and moderate or low level of sensitivity and *** study will punctuate the vulnerability of inland aquaculture and develop and prioritize actions to reduce the climatic impacts.

关键词： Aquaculture Coastal inland Vulnerability Climate change Bangladesh Developing country

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