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| 1 | Correlation analysis between vegetation coverage and climate drought conditions in North China during 2001–2013显示文摘Climate change is one of the most important factors that affect vegetation distribution in North China. Among all climatic factors, drought is considered to have the most significant effect on the environment. Based on previous studies, the climate drought index can be used to assess the evolutionary trend of the ecological environment under various arid climatic conditions. It is necessary for us to further explore the relationship between vegetation coverage(index) and climate drought conditions. Therefore, in this study, based on MODIS-NDVI products and meteorological observation data, the Palmer Drought Severity Index(PDSI) and vegetation coverage in North China were first calculated. Then, the interannual variations of PDSI and vegetation coverage during 2001–2013 were analyzed using a Theil-Sen slope estimator. Finally, an ecoregion perspective of the correlation between them was discussed. The experimental results demonstrated that the PDSI index and vegetation coverage value varied over different ecoregions. During the period 2001–2013, vegetation coverage increased in the southern and northern mountains of North China, while it showed a decreasing trend in the Beijing-Tianjin-Tangshan City Circle area and suburban agricultural zone located in Hebei Province and Henan Province). Over 13 years, the climate of the northeastern part of North China became more humid, while in the southern part of North China, it tended to be dry. According to the correlation analysis results, 73.37% of North China showed a positive correlation between the vegetation coverage and climate drought index. A negative correlation was observed mainly in urban and suburban areas of Beijing, Tianjin, Hebei Province, and Henan Province. In most parts of North China, drought conditions in summer and autumn had a strong influence on vegetation coverage. | GONG Zhaoning ZHAO Shuyi GU Jinzhi | 2017 | Journal of Geographical Sciences2017，27，2： | 38 |
| 2 | Spatial patterns of ephemeral plants in Gurbantünggüt Desert显示文摘In the present research,the authors measured parameters of richness,cover and importance value of ephemeral and ephemeroid plants on south-north and east-west transects in the Gurbantünggüt Desert in early spring,and investigated and analyzed the microhabitats,such as terrain,geomorphology,soil physical-chemical properties and crusts. By comparison,the regional differences in the ephemeral distribution in the desert were revealed. The species of ephemeral plants in the south and center are the richest and those in the west are the poorest in the desert. The cover of ephemeral plants in the mid-south is higher than that in the north,and that in the mid-east is higher than that in the west. The response of ephemeral plants to the spatial variation of the desert habitat forms the population-habitat gradient of ephemeral plants. The characteristics are:(1) In the habitat with higher terrain,coarser textured soil with poorer sorting and correspondingly higher organic matter and lower alkali-saline contents,Carex physoides and Eremopyrum orientale are the dominant ephemeral plants;(2) In the dry habitat with lower terrain,looser textured soil,some organic matter,alkali-saline soil,and developed crust,the ephemeral plants Alyssum linifolium and Erodium oxyrrhynchum are of characteristic of drought and alkali-saline tolerance;(3) In the habitat with lower terrain,some water and more alkali-saline soil,the ephemeral plants Neotorularia torulosa and Hypecoum parviflorum being of alkali-saline tolerance are mainly developed. However,most ephemerals are distributed in a habitat order of higher terrain,some organic,and less alkali-saline soil on the above-mentioned ephemeral population-habitat gradient. The spatial gradient of variation in desert microhabitats is small,and as a whole,the physio-logical character of mesophytism is represented by the desert ephemerals. | QIAN YiBing WU ZhaoNing ZHANG LiYun ZHAO RuiFeng WANG XiaoYan LI YouMin | 2007 | Chinese Science Bulletin2007，52，22： | 16 |
| 3 | Investigating the dynamics of wetland landscape pattern in Beijing from 1984 to 2008显示文摘北京沼泽地的风景模式由于自然、人工的元素经历了一个重要变化。由遥感和 GIS 技术支持了,用在北京的从 1984~2008 的多时间的 TM 图象,这份报纸包括补丁区域通过选择典型索引分析了沼泽地风景模式的动态特征,补丁一般水准区域,分数维的尺寸索引,差异,优势,传染索引和每种沼泽地类型的空间矩心是计算的。最后,纸探索了进化模式和沼泽地风景模式的开车因素。结果如下被获得:全部的沼泽地区域在时期期间增加了 19841996,然后从 1996 ~ 2004 衰退。在 1994 的沼泽地区域说明了仅仅那中的 47.37% 个在 2004。人工的沼泽地区域的比例比自然沼泽地的大。水库沼泽地的比例是 33.50% ~ 53.73% 并且有最大的平均区域。有最少的平均区域的池溏和稻地沼泽地类型说明了 16.46% ~ 45.09% 全部的沼泽地区域。自然的河沼泽地的驱动力主要是自然元素;它的分数维的尺寸索引比其它大。沼泽地风景的香农差异索引在 2004 在 1992 ~ 1.34 从 1.11 增加了,显示每种沼泽地类型的比例之间的差别减少了,每种沼泽地类型的区域是均匀地分布式的。传染索引从 65.59 ~ 58.41 下沉了,显示连接降级了。Miyun 水库有最大的区域,它的区域变化在矩心的地点上有大影响。沼泽地资源从自然、人工的因素的联合效果逐渐地堕落了。在时期期间 20062008,增加的降水和干旱条件被减轻。政府实现了积极政策的系列节省水资源,并且沼泽地区域增加了。 | ZHANG Yiran GONG Zhaoning GONG Huili ZHAO Wenji | 2011 | Journal of Geographical Sciences2011，21，5： | 16 |
| 4 | Vegetation patterns and species-environment relationships in the Gurbantunggut Desert of China显示文摘Gurbantunggut 沙漠在中国是最大的马厩和半马厩沙沙漠,还很少数据为这些多样的荒芜的风景在植被模式和种类环境关系上存在。调查区域的沙沙丘主要具有 | QIAN Yibing WU Zhaoning ZHAO Ruifeng ZHANG Liyun | 2008 | Journal of Geographical Sciences2008，18，4： | 10 |
| 5 | Spatial heterogeneity for grain size distribution of eolian sand soil on longitudinal dunes in the southern Gurbantunggut Desert显示文摘The grain size composition, distribution characteristics and spatial variation of eolian sand soil on distinct positions across two longitudinal dunes and interdune areas were studied by means of conventional grain size analysis and geostatistical methods. In the study, 184 samples of eolian sand soil from the 0-30cm layer were systemically collected and measured from two longitudinal dunes and interdunes in the southern Gurbantunggut Desert. The results show that the dominant grain sizes are fine and very fine sands, and the differences of grain size compositions between the distinct geomorphologic positions are significant. The contents of clay and silt are highest on the interdune areas and lowest on the crests, and higher on the leeward slopes than on the windward slopes. The contents of very fine and fine sands are highest on the windward slopes and lowest on the crests. The contents of medium, coarse and very coarse sands are lowest on the interdune lands, and highest on the crests, and are identical on the two slopes. The coarser sizes (φ1) and mean sizes (Mz) for eolian sand soil all have a varying tendency from fine to coarse sizes with interdune area → leeward slope → windward slope → crest, and the sorting (σ) are poorly to well sorted. The results of geostatistical analysis reveal that φ1, Mz and σ values are moderately to strongly spatially autocorrelated. The values of the spatially correlated ranges are φ1<σ | Qian, YiBing Wu, ZhaoNing Yang, HaiFeng Jiang, Chao | 2009 | Journal of Arid Land2009，1，1： | 9 |
| 6 | Vegetation-environment Relationships Between Northern Slope of Karlik Mountain and Naomaohu Basin,East Tianshan Mountains显示文摘Based on data from 22 sample plots and applying the Canonical Correspondence Analysis (CCA),this paper discusses the vegetation-environment relationships between the northern slope of Karlik Mountain and Naomaohu Basin,which is situated in the easternmost end of the Tianshan Mountains,Xinjiang Uygur Autonomous Region,China.For the zonal vegetation,community diversity of mountain vegetation is higher than that of the desert vegetation due to environmental factors.The CCA ordination diagram revealed that the composition and distribution of vegetation types are mainly determined by altitude,soil pH and soil salt content.With increasing elevation,the soil pH and total salt content decrease but the contents of soil organic matter,soil water,total nitrogen and total phosphorus increase gradually.In the CCA ordination diagrams,the sample plots and main species can be divided into five types according to their adaptations to the environmental factors.Type I is composed of desert vegetation distributed on the low mountains,hills,plains and deserts below an elevation of 1900 m;type II is distributed in the mountain and desert ecotone with an elevation of 1900-2300 m,and includes steppe desert,desert steppe and wetland meadow;type III is very simply composed of only salinized meadow;type IV is distributed above an elevation of 2300 m,containing mountain steppe,meadow steppe,subalpine meadow and alpine meadow;type V only contains salinized meadow.The results show that with increasing elevation,species combination changes from the xerophytic shrubs,semi-shrubs and herbs distributed in the low altitude zone with arid climate to the cold-tolerant perennial herbs growing in the high altitudinal zone with cold climate. | ZHANG Haiyan QIAN Yibing WU Zhaoning WANG Zhongchen | 2012 | Chinese Geographical Science2012，22，3： | 9 |
| 7 | Relationship between Indian Ocean dipole and ENSO and their connection with the onset of South China Sea summer monsoon显示文摘用雷纳兹和史密斯 1950 ~ 1998 重建了与华南海夏季风(SCSSM ) 的发作讨论在 ENSO 和印度洋偶极子(IOD ) 和他们的可能的连接之间的关系的每月平均数的 SST,结果如下被获得:大多数 IOD 事件在夏天和秋天有一种密切积极的关系到同时的 ENSO 事件。在秋天(成熟阶段) 的 IOD 事件也是仔细与在冬季(成熟阶段) 的 ENSO 事件有关。当这些二种事件发生在阶段时,我。e。, positive (negative ) IODevents 被结合 El Nino (拉·尼娜) 事件,他们总是被跟随由迟了(或早) SCSSM 的发作。相反,当这些二种事件从阶段发生时,我。e。positive (negative ) IOD 事件被结合拉·尼娜(El Nino ) 事件,他们被 SCSSM 的正常发作跟随。另外,单个 IOD 事件或单个 ENSO 事件不能对应于很好 SCSSM 的反常发作。 | LIANG Zhaoning WEN Zhiping LIANG Jieyi WU Liji WU Naigeng | 2006 | Acta Oceanologica Sinica2006，25，6： | 3 |
| 8 | Large-scale virtual machines provisioning in clouds: challenges and approaches显示文摘 | Zhaoning ZHANG Dongsheng LI Kui WU | 2016 | Frontiers of Computer Science2016，10，1： | 3 |
| 9 | Engineering three-layer core–shell S-1/TS-1@dendritic-SiO_(2) supported Au catalysts towards improved performance for propene epoxidation with H_(2) and O_(2)显示文摘The advocacy of green chemical industry has led to the development of highly efficient catalysts for direct gas-phase propene epoxidation with green,sustainable and simple essence.The S-1/TS-1@dendritic-SiO_(2) material with three-layer core–shell structure was developed and used as the support for Au catalysts,which showed simultaneously fantastic PO formation rate,PO selectivity and stability(over 100 h)for propene epoxidation with H_(2) and O_(2).It is found that silicalite-1(S-1)core and the middle thin layer of TS-1 offer great mass transfer ability,which could be responsible for the excellent stability.The designed dendritic SiO_(2) shell covers part of the acid sites on the external surface of TS-1,inhibiting the side reactions and improving the PO selectivity.Furthermore,three kinds of SiO_(2) shell morphologies(i.e.,dendritic,net,mesoporous shell)were designed,and relationship between shell morphology and catalytic performance was elucidated.The results in this paper harbour tremendous guiding significance for the design of highly efficient epoxidation catalysts. | Zhaoning Song Juncong Yuan Zhenping Cai Dong Lin Xiang Feng Nan Sheng Yibin Liu Xiaobo Chen Xin Jin De Chen Chaohe Yang | 2020 | Green Energy & Environment2020，5，4： | 3 |
| 10 | Using remote sensing to research Beijing wetlands dynamics显示文摘In Beijing, where wetlands are important to municipal freshwater conservation and biodiversity retention, three different types of wetlands were identified: riverside wetlands, wetlands surrounding lakes and reservoirs, and wetlands in municipal parks.Remote sensing technology was applied in combination with field investigations to monitor and analyze the changes in these wetlands, and a combination of fusion technologies,Landsat TM/ETM+ and IKONOS imaging, was used to investigate and map them. This study indicates that not only have wetland areas been reduced by half, but also their ecological environments have been degraded because of rapid economic development and population increase. Suggestions based on this research are made to reconstruct the ecological environment of the wetlands and return them to their previous state. | ZHAO Wenji, GONG Zhaoning, GONG Huili, LI Xiaojuan, ZHANG Songmei & LI Jing Key Lab of Resource Environment and GIS of Beijing, Capital Normal University, Beijing 100037, China Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China | 2006 | Science China(Technological Sciences)2006，49，z2： | 3 |
| 11 | Vegetation composition and distribution on the northern slope of Karlik Mountain to Naomaohu basin,East Tianshan Mountains显示文摘This paper reports the characteristics of plant flora in the region of the northern slope of Karlik Mountain to Naomaohu basin,based on field investigation of the vegetation and referring to relevant literature. The results show that the flora of the study area mainly consists of communities of single species or a limited number of species,genera and families. The flora composition is marked by the phenomenon of dominant families and genera;the temperate element occupies a dominant position,while in terms of the genera the Tethys element is an important component. Areal-types of the species are dominated by the floral element of Asian Central-part with xerophytic characteristic,and the life-forms of plants are mainly perennial and herbaceous. These characteristics reflect that the compositions of the species in this region possess both ancient and young elements. Analysis of the relationship between the species composition,plant community diversity and altitude gradient,we found that the structure of the vegetation has an obvious vertical distribution. The lower and higher altitude areas,where the climate conditions are relative inclement,are mainly occupied by the plant communities with simple structure and single dominant population,while the species richness in the mid-altitude area increases with favorable temperature and precipitation. Consequently,the species diversity and evenness indices show single-peak distribution with increasing elevation(about < 2500 m) ,while the dominance indices decrease in elevation from 500 m to 2500 m and increase in elevation of > 2500m. | YiBing QIAN HaiYan ZHANG ZhaoNing WU ZhongChen WANG | 2011 | Journal of Arid Land2011，3，1： | 3 |
| 12 | Crystal phase-controlled growth of PtCu and PtCo alloys on 4H Au nanoribbons for electrocatalytic ethanol oxidation reaction显示文摘Crystal phase can greatly affect the physicochemical properties and applications of nanomaterials.However,it stil remains a great challenge to synthesize nanostructures with the same composition and morphology but different phases in order to explore the phase-dependent properties and applications.Herein,we report the crystal phase-controlled synthesis of PtCu alloy shells on 4H Au nanoribbons(NRBs),referred to as 4H-Au NRBs,to form the 4H-Au@PtCu core-shell NRBs.By tuning the thickness of PtCu,4H-PtCu and face-centered cubic(cc)phase PICu(cc-PtCu)alloy shells are successtully grown on the 4H-Au NRB cores.This thickness-dependent phase-controlled growth strategy can also be used to grow PtCo alloys with 4H or fcc phase on 4H-Au NRBs.Significantly,when used as electrocatalysts for the ethanol oxidation reaction(EOR)in alkaline media,the 4H-Au@4H-PtCu NRBs show much better EOR performance than the 4H-Au@fcc-PtCu NRBs,and both of them possess superior performance compared to the commercial Pt black.Our study provides a strategy on phase-contolled synthesis of nanomaterials used for crystal phase-dependent applications. | Jie Wang Jian Zhang Guigao Liu Chongyi Ling Bo Chen Jingtao Huang Xiaozhi Liu Bing Li An-Liang Wang Zhaoning Hu Ming Zhou Ye Chen Hongfei Cheng Jiawei Liu Zhanxi Fan Nailiang Yang Chaoliang Tan Lin Gu Jinlan Wang Hua Zhang | 2020 | Nano Research2020，13，7： | 2 |
| 13 | Effects of dietary fiber content and different fiber-rich ingredients on endogenous loss of fat and fatty acids in growing pigs显示文摘Background: Determination of the endogenous loss of fat(ELF) is used to adjust for the estimation of true total tract digestibility(TTTD) of fat in diets and ingredients.Any factor which affected ELF may further affect the digestibility of fat,including sources and concentrations of fat and fiber in the diet.There are some reports of determining the ELF using regression methods based on different levels of fat intake,while reports on effects of dietary fiber content and different fiber-rich ingredients in pig diets on ELF are very limited.Therefore,the objective of this study was to determine the effects of dietary fiber content and different fiber-rich ingredients on endogenous losses of fat and fatty acids at the end of ileum and throughout the entire intestinal tract in growing pigs.Methods: In Exp.1,the effect of fiber content on endogenous loss of fat was determined using six growing pigs(Duroc × Landrace × Yorkshire;27.6 ± 2.4 kg),fitted with a T-cannula at the end of ileum.The experimental design was a 6 × 6 complete Latin square design with six periods of feeding and six diets.The six experimental fat-free diets were formulated to include graded levels of neutral detergent fiber(NDF)(0,40,80,120,160 and 200 g/kg) and soybean hull(SH) was the only fiber source,providing 0,75,150,225,300 and 375 g/kg,respectively.Chromic oxide was included at4 g/kg in all diets as an indigestible marker.In Exp.2,six crossbred growing barrows(27.6 ± 1.6 kg) were used and the experimental design was the same as for Exp.1.The six fat-free diets were formulated to include six common fiber-rich ingredients and the concentration of NDF was 100 g/kg.The six fiber-rich ingredients were defatted rice bran(DRB),sugar beet pulp(SBP),rice hull(RH),corn germ meal(CGM),SH and wheat bran(WB) and they were fed at represented250,270,145,250,170 and 280 g/kg in the diet,respectively.Results: In Exp.1,the endogenous loss of fatty acids profile did not change as dietary NDF increased in growing pigs.The endogenous losses of fat,C16:0,C18:0,C18:1,C18:2,total unsaturated fatty acids(UFA) and total saturated fatty acids(SFA) in growing pigs at the end of ileum and throughout the entire intestinal tract increased linearly as NDF content of diets increased.The endogenous losses of fat,as well as C16:0 and C18:0 throughout the entire intestinal tract also increased quadratically as NDF content of diets increased.The ELF increased from 0.71 to 3.14 g/kg of dry matter intake(DMI) and 0.56 to 8.21 g/kg DMI at the end of ileum and throughout the entire intestinal tract in growing pigs,respectively.The ELF occurred in the hindgut except for the growing pigs fed 0 and 4% NDF in their diets.The endogenous losses of C16:0 and UFA occurred primarily in the upper regions of the gut and the greatest endogenous losses of C18:0 occurred in the hindgut.The endogenous losses of fat,individual SFA and total SFA throughout the entire intestinal tract were much greater than that at the end of ileum.However,the endogenous losses of individual UFA and total UFA were less throughout the intestinal tract than at the end of ileum.In Exp.2,the endogenous losses of fat at the end of ileum were greater in growing pigs fed CGM or WB diets.The endogenous loss of fatty acids profile changed to a slight degree at the end of ileum that the endogenous loss of UFA(particularly C18:1 and C18:2) in growing pigs fed CGM or WB diets were greater(P < 0.01) than that for the other four diets.The greatest(P < 0.01) endogenous loss of SFA(particularly C18:0) was in growing pigs fed the RH diet.The endogenous losses of fat,C16:0,C18:0 and SFA over the entire intestinal tract were much greater in growing pigs fed CGM or WB diets,whereas the lowest values were in growing pigs fed DRB diet.The ELF at the end of ileum in growing pigs fed CGM or WB diets were 3.50 or 4.17 g/kg DMI,respectively,and the ELF over the entire intestinal tract was 7.23 or 7.38 g/kg DMI.The contribution in percentage of ELF in the upper gut was greater than that in the hindgut of growing pigs fed DRB and RH diets,while the ELF in the upper gut and hindgut were equal in growing pigs fed SBP,CGM and WB diets.On the whole,the endogenous losses of C18:1 and C18:2 throughout the entire intestinal tract in growing pigs fed the six fiber-rich ingredients diets were less than losses at the end of ileum,whereas the endogenous loss of fat,C16:0,C18:0 and SFA were greater throughout the intestinal tract than at the end of ileum.Conclusion: The profile of loss in endogenous fatty acids did not change as dietary NDF increased in growing pigs and the endogenous losses of fatty acids(C16:0,C18:0,C18:1 and C18:2) fat,UFA and SFA increased linearly as NDF content increased in the diets of pigs.The endogenous losses of fat or fatty acids at the end of ileum were greater in growing pigs fed RH,CGM or WB diets.The endogenous losses of fat,fatty acids(C16:0 and C18:0) and SFA were greater over the entire intestinal tract in pigs fed CGM or WB diet,while these values were the lowest in growing pigs fed the DRB diet.The contribution in percentage losses of fat in the upper gut were greater than in the hindgut of growing pigs fed DRB and RH diets,while the contribution of losses of fat in the upper gut and hindgut were equal in growing pigs fed SBP,CGM and WB diets.In addition,the endogenous loss of individual or total UFA was less over the entire intestinal tract of growing pigs fed fiber diets than that at the end of ileum,and the greatest endogenous losses of fat,individual or total SFA were over the entire intestinal tract.Therefore,differences in fiber content and the nature of fiber-rich ingredients in diets of pigs have different effects to the endogenous losses of fat or fatty acids.Considering the requirement of fat or fatty acids of pigs,careful attention must be paid that the endogenous losses of fat and fatty acids when fiber ingredients are used in diets of pigs. | Yifan Chen Zhenyu Wang Jian Ding Dongxu Ming Wenhui Wang Zhaoning Jiang Ling Liu Fenglai Wang | 2019 | Journal of Animal Science and Biotechnology2019，10，3： | 2 |
| 14 | Eco- environmental evolution, control and adjustment for Aibi Lake catchment显示文摘 | Qian Yibing Wang Zhaoning Zhang Liyuan | 2006 | Environmental Management2006，36，4： | 1 |
| 15 | Acetyl-L-carnitine attenu-ates homocysteine-induced Alzheimer-like histopathologicaland behavioral abnormalities显示文摘 | Zhou P Chen Z ZhaoN | 2011 | Rejuvenation Res2011，14，6： | 1 |
| 16 | ThechemicalcompositionandpharmacologicalactionofSalviamiltiorrhiza显示文摘 | ZHAON GUOZX ZHAOX etal | 2007 | 现代药物与临床2007，22，4： | 1 |
| 17 | Superhydrophobicsurfacefromvapor-inducedphaseseparationofcopolymermicel-larsolution显示文摘 | ZhaoN XieQD WengL H | 2005 | Macromolecules2005，38，： | 1 |
| 18 | Evaluation of cascade multilevel converter basedSTATCOM for arc furnace flicker mitigation显示文摘 | Han Chong Yang Zhaoning Chen Bin | 2007 | IEEETransactions on Industry Applications2007，43，2： | 1 |
| 19 | ChemicallymodifiedkapokfiberforfastadsorptionofPb2+,Cd2+ ,Cu2+ fromaqueoussolution显示文摘 | DuanC ZhaoN YuX etal | 2013 | Cellulose2013，20，2： | 1 |
| 20 | Comprehensive Evaluation and Forecast Analysis of Control System Quality in ATC Operation显示文摘 | Zongping Lv Linlu Wang Zhaoning Zhang | 2012 | Journal of Convergence Information Technology2012，，7： | 1 |
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