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| 1 | China's lakes at present:Number,area and spatial distribution显示文摘Based on 11004 satellite images from CBERS CCD and Landsat TM/ETM,changes in the spatial characteristics of all lakes in China were determined following pre-established interpretation rules.This dataset was supported by 6843 digital raster images(1:100000 and 1:50000),a countrywide digital vector dataset(1:250000),and historical literature.Comparative data were corrected for seasonal variations using precipitation data.There are presently 2693 natural lakes in China with an area greater than 1.0 km2,excluding reservoirs.These lakes are distributed in 28 provinces,autonomous regions and municipalities and have a total area of 81414.6 km2,accounting for-0.9% of China's total land area.In the past 30 years,the number of newly formed and newly discovered lakes with an area greater than 1.0 km2 is 60 and 131,respectively.Conversely,243 lakes have disappeared in this time period. | MA RongHua YANG GuiShan DUAN HongTao JIANG JiaHu WANG SuMin FENG XueZhi LI AiNong KONG FanXiang XUE Bin WU JingLu LI ShiJie | 2011 | Science China Earth Sciences2011，54，2： | 79 |
| 2 | A Fast Approximation Method for Partially Observable Markov Decision Processes显示文摘This paper develops a new lower bound method for POMDPs that approximates the update of a belief by the update of its non-zero states.It uses the underlying MDP to explore the optimal reachable state space from initial belief and select actions during value iterations,which significantly accelerates the convergence speed.Also,an algorithm which collects and prunes belief points based on the upper and lower bounds is presented,and experimental results show that it outperforms some of the state-of-art point-based algorithms. | LIU Bingbing KANG Yu JIANG Xiaofeng QIN Jiahu | 2018 | Journal of Systems Science & Complexity2018，31，6： | 3 |
| 3 | Rapid prototyping of 4043 Al-alloy parts by VP-GTAW显示文摘 | Wang Huijun Jiang Wenhui Ouyang Jiahu | 2004 | International Journal of Machine Tools and Manufacture2004，148，1： | 1 |
| 4 | Rapid prototyping of 4043 Al-alloy parts by VP-GTAW显示文摘 | Jiang Wenhui Jiahu Ouyang | 2004 | Journal of Materials Processing Technology2004，，48： | 1 |
| 5 | Rapid prototyping of 4043 Al-alloy parts by VP-GTAW显示文摘 | Wang Huijun Jiang Wenhui Jiahu Ouyang | 2004 | Journal of Materials Processing Technology2004，148，： | 1 |
| 6 | Temporal and spatial variations of bacterial community compositions in two estuaries of Chaohu Lake显示文摘The distinctive estuary hydrodynamics and nutrient input make the estuary ecosystem play a key role in lake ecosystems.The Nanfei River and Zhaohe River are two main inlets of Chaohu Lake,Anhui,East China.We selected estuaries of the two rivers as representative areas to study temporal and spatial changes of bacterial communities.In August(summer)and November(autumn)2016 and February(winter)and May(spring)2017,16 water and sediment samples were collected from the estuaries.Physicochemical characteristics indicate significant differences in the nutritional status and eutrophication index of the estuaries due mainly to organic input.Examination of the number of operational taxonomic units,the diversity index,the community composition,and redundancy analysis revealed the following.First,the existence of varying degrees of seasonal differences in the distribution of almost all bacteria.In addition,the species diversity in the sediment samples was higher than that in the water samples,and the dominant species differed also among these samples.Second,a large number of unknown genera were detected,especially in the sediment samples,such as unclassified Xanthomonadales incertae sedis,unclassified Anaerolineaceae,and unclassified Alcaligenaceae.Last,TP,TN,and TOC were the main influential factors that affected the bacterial community structure. | ZHANG Lei LI Li LIU Mengna HU Yao JIANG Jiahu | 2020 | Journal of Oceanology and Limnology2020，38，3： | 1 |
| 7 | Using stable isotope to compare the habitat use and trophie level between the new and old breeding range of wild Crested Ibis in the early breeding season显示文摘The concept of foraging niche provides an insight into habitat use and dietary information of animals.Knowing intraspecific variation in foraging niche and trophic level is critical to the understanding of the species response to environmental changes during the process of range expansion,as well as the habitat management for conservation of threatened species.Using stable isotopic values of eggshell membranes(δ;C andδ;N),we examined whether there are differences in habitat use,trophic level,foraging niche width between the new and old breeding habitats(plains vs.mountains)of wild Crested Ibis(Nipponia nippon)in the early breeding season.Crested Ibis exhibited high variability in bothδ;C andδ;N values,δ;C andδ;N varied as a function of habitat types.Birds breeding in plains had significantly higherδ;C but lowerδ;N values compared to the birds breeding in mountains.Higherδ;N suggested that individuals in mountains consumed a great proportion of higher trophic level prey species in the early breeding season.Moreover,the isotopic niches were distinctly different in positions and showed small overlap between the two habitat types.The niche width was wider in old habitat than in the expanded new habitat.Our results demonstrated that the wild Crested Ibis had a high intraspecific variation in habitat uses and trophic levels in the early breeding season,and they could be divided into mountain and plain groups based on their different foraging niches.The difference inδ;N and niche width revealed that high trophic level food resources might be insufficient in plains.These findings stressed the importance of protecting foraging grounds in mountains and the necessity of improving foraging grounds in plains during winter and spring.Our study highlights the feasibility of investigating intraspecific variation in foraging ecology of birds through non-invasive isotopes of eggshell membranes.Understanding foraging niche variation gives us an insight into the food resource diversity in local areas and provides important information regarding particular foraging habitats that require protection. | Xianglong Xu Jiahu Jiang Yu Lei Chao Wang Baoping Qing Changqing Ding | 2022 | Avian Research2022，13，2： | 1 |
| 8 | Rapid prototyping of 4043 Al-alloy parts by VP-GTAW 显示文摘 | Wang Huijun Jiang Wenhui Ouyang Jiahu | 2004 | J Mater Processing Techn2004，148，： | 1 |
| 9 | Large-scale hydrodynamic modeling of the middle Yangtze River Basin with complex river-lake interactions显示文摘 | Lai Xijun Jiang Jiahu Liang Qiuhua | 2013 | Journal of Hydrology2013，492，： | 1 |
| 10 | Bacterial community shifts in different functional zones of a reservoir with ecological purification facilities显示文摘Ecological purification in a reservoir is an important strategy to control the level of nutrients in water.The bacterial community of such a reservoir is the main agent for pollutant degradation,which has not been fully documented.Taking the Jinze Reservoir,a freshwater source for Shanghai,China as the case,its spatial distributions of water and sediment bacteria were determined using 16S rRNA gene-based Illumina MiSeq sequencing,and the environmental parameters were analyzed.The reservoir takes natural river water and functions as an ecological purification system,consisting of three functional zones,i.e.,pretreatment zone,ecological purification zone,and ecological sustaining zone.Results show that the concentrations of both total nitrogen(TN)and total phosphorus(TP)decreased considerably after the ecological treatment,and the concentration of dissolved oxygen(DO)in the ecological purification zone was boosted from that before pretreatment.In addition,patterns of bacterial communities in both water and sediment were similar and consisted of mainly Proteobacteria,Actinobacteria,and Bacteroidetes.However,difference in water bacterial composition was distinct in each functional zone,whereas the bacterial communities in sediment changed only slightly among sediment samples.Network analysis revealed nonrandom co-occurrence patterns of bacterial community composition in water and sediment,and Pseudomonas,unclassified Comamonadaceae,Variovorax,and Dechloromonas were the key taxa in the co-occurrence network.The bacterial taxa from the same module of the network had strong ecological connections,participated in C-cycles,and shared common trophic properties.PICRUSt analysis showed that bacteria were involved potentially in various essential processes;and the abundance of predicted xenobiotic biodegradation genes showed a decreasing trend in water samples from the inlet to the outlet of the reservoir.These results improve our current knowledge of the spatial distribution of bacteria in water and sediment in ecological purification reservoirs. | Lei ZHANG Yue ZHAN Jiahu JIANG Wenxuan LU | 2021 | Journal of Oceanology and Limnology2021，39，4： | 0 |
| 11 | THE WARNING OF THE '98 YANGTZE DELUGE & OUR FLOOD CONTROL STRATEGY显示文摘Based on a panoramic analysis of the serious Yangtze deluge in 1998 and its hydrological traits, the authors elucidate the formative factors of the deluge and review existing flood-control policies in retrospect. In addition, some countermeas-ures are suggested for coping with similar calamities in the near future. | Yu Xiaogan, Jiang Jiahu, Dou Hongshen Yang Guishan(Nanjing Institute of Geography & Limnology) | 1999 | Bulletin of the Chinese Academy of Sciences1999，13，1： | 0 |
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