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| 1 | Regeneration dynamics of subalpine fir (Abies fargesii) forest across the altitudinal range in the Shennongjia Mountains, central China显示文摘Aims Age structure and regeneration dynamics have been used to infer population response to environmental events and reconstruct forest development history.The aim of this study was to characterize and examine the differences of the age structure and regeneration dynamics of subalpine fir(Abies fargesii)forest across the altitudinal range in the north and south aspects in the Shennongjia Mountains,central China.Methods Ten plots(20×20 m)at each altitudinal zone(i.e.the low elevation,the middle elevation and the high elevation)were established in both the north and south aspects of the Shennongjia Mountains,central China.Dendroecological techniques were applied to obtain information about ages of the trees in the plots.The population age structure was analyzed to investigate the regeneration dynamics across the altitudinal range.Important findings Fir regeneration dynamics and age structure were similar in both aspects,and a unimodal population age structure was found at different altitudinal sites of both aspects,indicating that environmental factors might play an important role in shaping the regeneration dynamics and age structure of A.fargesii across its altitudinal range.There was a sustained recruitment during the 19th century,but the regeneration was rarer in the last century at low and midelevations.A significant greater number of fir seedlings and saplings recruited at high elevations in the last century,and fir tree density at high elevations was significantly higher than that at low elevations.Thus,the fir population at the high elevations showed a significant increase in recruitment and stem density in the last century,and we propose that the gradual infilling of fir seedlings might result in changes in regeneration dynamics and stand structure of the subalpine fir forest at high elevations in the Shennongjia Mountains,central China. | Haishan Dang Kerong Zhang Yanjun Zhang Xunzhang Tong Quanfa Zhang | 2013 | Journal of Plant Ecology2013，6，1： | 6 |
| 2 | Spatial–temporal variability of terrestrial vegetation productivity in the Yangtze River Basin during 2000–2009显示文摘Aims Terrestrial net primary production(NPP),the balance of gross primary production(GPP)and autotrophic respiration(AR),is a critical measure of carbon sequestration capacity for the Earth’s land surface.The aim of this study was to understand the spatio-temporal variability of NPP associated with GPP and AR in the Yangtze River Basin(YRB),China,from 2000 to 2009 during which the basin warmed significantly.Methods We first derived AR and carbon-use efficiency(CUE)from the improved Moderate Resolution Imaging Spectroradiometer GPP/NPP products(MOD17)and then conducted spatial analysis to quantify how NPP relates to GPP,AR and their relationship with key observed climate variables(temperature,precipitation and sunshine percentage)in the YRB during 2000–2009.Important Findings The spatial pattern of NPP in the YRB was predominantly determined by GPP and further modified by AR.Higher GPP and relatively low AR made the southern Jinshajiang sub-basin the most productive area in NPP in the YRB.A large portion of the YRB experienced a warmer and drier climate trend in the growing season during 2000–2009.In the upper reaches of the basin,possessing a relatively low temperature base,increases in temperature led to greater increases in GPP than those in AR,resulting in greater increased NPP.However,in the middle and lower reaches of the basin where the base temperature is relatively high,increases in temperature led to greater increases in AR than those in GPP,leading to decreases in NPP.Overall,86.7%of the vegetated area showed a consistent GPP and NPP trend through time with 71.3%of the vegetated area having a positive trend both in GPP and NPP,and the remaining 13.3%of vegetated areas showed an opposite trend in GPP and NPP,with positive GPP and negative NPP trajectories dominating(10.1%of vegetated area)the trend.Although climate warming generally had positive effects on vegetation growth in most areas of the basin,areas with increased NPP(74.5%)were less extensive than those with increased GPP(81.4%)due to the wider increase in AR(82.2%).During the study period,increases in AR offset 62%of the total increased GPP,leading to a substantial decline of CUE,particularly in the warmer lower altitude regions in the southeast.Our work reveals the diverse responses of NPP associated with GPP and AR as the climate warms and generally suggests that NPP in the middle and lower sub-basins in the YRB is more sensitive to future climate warming.These findings enhance our understanding of terrestrial ecosystem carbon dynamics in response to global warming and provide a scientific basis for managing ecosystem productivity in the YRB,China. | Yulong Zhang Conghe Song Kerong Zhang Xiaoli Cheng Quanfa Zhang | 2014 | Journal of Plant Ecology2014，7，1： | 3 |
| 3 | Assessing soil heavy metal pollution in the water-level-fluctuation zone of the Three Gorges Reservoir, China显示文摘 | Chen Ye Siyue Li Yulong Zhang Quanfa Zhang | 2011 | Journal of Hazardous Materials2011，，1： | 2 |
| 4 | Main human impacts on the upper Han River Basin and water quality control for the Middle Route of South to North Water Transfer Project, China显示文摘 | Siyue LI Quanfa ZHANG | 2006 | Chinese Journal Of Geochemistry2006，25，B08： | 1 |
| 5 | Fine-scale activity patterns of large-and medium-sized mammals in a deciduous broadleaf forest in the Qinling Mountains,China显示文摘The composition of animal species and interactions among them are widely known to shape ecological communities and fine-scale(e.g.,<1 km)monitoring of animal communities is essential for understanding the relationships among animals and plants.Although the co-existence of large-and medium-sized species has been studied across different scales,research on fine-scale interactions of herbivores in deciduous broadleaf forests is limited.Camera trapping of large-and medium-sized mammals was carried out over a 1 year period within a 25 ha deciduous broadleaf forest dynamics plot in the Qinling Mountains,China.Fourteen species of large-and medium-sized mammals,including six carnivores,six ungulates,one primate and one rodent species were found.Kernel density estimations were used to analyse the diel or 24 h activity patterns of all species with more than 40 independent detections and general linear models were developed to explore the spatial relationships among the species.The combination of overlapping diel activity patterns and spatial associations showed obvious niche separation among six species:giant panda(Ailuropoda melanoleuca David),takin(Budorcas taxicolor Hodgson),Reeves’s muntjac(Muntiacus reevesi Ogilby),tufted deer(Elaphodus cephalophus Milne-Edwards),Chinese serow(Capricornis milneedwardsii David)and wild boar(Sus scrofa Linnaeus).Long-term fine-scale monitoring is useful for providing information about the co-existence of species and their interactions.The results demonstrate the importance for fine-scale monitoring of animals and plants for improving understanding of species interactions and community dynamics. | Yuke Zhang Xiangbo He Xuehua Liu Melissa Songer Haishan Dang Quanfa Zhang | 2021 | Journal of Forestry Research2021，32，6： | 1 |
| 6 | Eutrophication in the Yunnan Plateau lakes: the influence of lake morphology, watershed land use, and socioeconomic factors显示文摘 | Wenzhi Liu Siyue Li Hongmei Bu Quanfa Zhang Guihua Liu | 2012 | Environmental Science and Pollution Research2012，，3： | 1 |
| 7 | Risk assessment and seasonal varia- tions of dissolved trace elements and heavy metals in the Up- per Han River, China显示文摘 | Siyue Li Quanfa Zhang | 2010 | Journal of Hazardous Materials2010，181，13： | 1 |
| 8 | Simultaneous adsorption of As(Ⅲ) and Pb(Ⅱ) by the iron-sulfur codoped biochar composite:Competitive and synergistic effects显示文摘Simultaneous elimination of As(Ⅲ) and Pb(Ⅱ) from wastewater is still a great challenge.In this work,an iron-sulfur codoped biochar (Fe/S-BC) was successfully fabricated in a simplified way and was applied to the remediate the co-pollution of As(Ⅲ) and Pb(Ⅱ).The positive enthalpy indicated that the adsorption in As-Pb co-pollution was an endothermic reaction.The mechanism of As(Ⅲ) removal could be illustrated by surface complexation,oxidation and precipitation.In addition to precipitation and complexation,the elimination mechanism of Pb(Ⅱ) also contained ion exchange and electrostatic interactions.Competitive and synergistic effects existed simultaneously in the co-contamination system.The suppression of As(Ⅲ) was ascribed to competitive complexation of the two metals on Fe/S-BC,while the synergy of Pb(Ⅱ) was attributed to the formation of the PbFe2(AsO_(4))2(OH)2.Batch experiments revealed that Fe/S-BC had outstanding ability to remove As(Ⅲ) and Pb(Ⅱ),regardless of pH dependency and interference by various coexisting ions.The maximum adsorption capacities of the Fe/S-BC for As(Ⅲ) and Pb(Ⅱ) were 91.2 mg/g and 631.7 mg/g,respectively.Fe/S-BC could be treated as a novel candidate for the elimination of As(Ⅲ)-Pb(Ⅱ) combined pollution. | Yijun Chen Qintie Lin Xiaoqing Wen Jin He Haoyu Luo Quanfa Zhong Libin Wu Jiaqi Li | 2023 | Journal of Environmental Sciences2023，，3： | 1 |
| 9 | Dissolved trace elements and heavy metals in the Danjiangkou Reservoir, China显示文摘 | Siyue Li Zhifang Xu Xiaoli Cheng Quanfa Zhang | | Environmental Geology0，，： | 1 |
| 10 | Soil nitrogen dynamics following short-term revegetation in the water level fluctuation zone of the Three Gorges Reservoir, China显示文摘 | Chen Ye Xiaoli Cheng Yulong Zhang Zhixi Wang Quanfa Zhang | 2011 | Ecological Engineering2011，，1： | 1 |
| 11 | Dissolved trace elements and heavy metals in the Danjiangkou Reservoir, China显示文摘 | Siyue Li Zhifang Xu Xiaoli Cheng Quanfa Zhang | 2008 | Environmental Geology2008，，5： | 1 |
| 12 | Physiological responses of bermudagrass (Cynodon dactylon) to submergence显示文摘 | Shuduan Tan Mingyong Zhu Quanfa Zhang | | Acta Physiologiae Plantarum0，，： | 1 |
| 13 | Optimizing mixed culture of two acidophiles to improve copper recovery from printed circuit boards (PCBs)显示文摘 | Guobin Liang Jianghong Tang Weiping Liu Quanfa Zhou | 2013 | Journal of Hazardous Materials2013，，： | 1 |
| 14 | Novel strategies of bioleaching metals from printed circuit boards (PCBs) in mixed cultivation of two acidophiles显示文摘 | Guobin Liang Yiwei Mo Quanfa Zhou | 2010 | Enzyme and Microbial Technology2010，，7： | 1 |
| 15 | Risk assessment and seasonal variations of dissolved trace elements and heavy metals in the Upper Han River, China 显示文摘 | Li Siyue Zhang Quanfa | 2010 | Journal of Haz-ardous Materials2010，18，13： | 1 |
| 16 | The environmental changes and mitigation actions in the Three Gorges Reservoir Region, China显示文摘 | ZHANG Quanfa LOU Zhiping | 2011 | Environmental Science & Policy2011，14，8： | 1 |
| 17 | Lake eutrophication associated with geographic location, lake morphology and climate in China 显示文摘 | LIU Wenzhi ZHANG Quanfa LIU Guihua | 2010 | Hydrohiologia2010，644，： | 1 |
| 18 | Seed banks of a river-reservoir wetland system and their implications for vegetation development显示文摘 | Liu Wenzhi Zhang Quanfa Liu Guihua | 2009 | Journal of Great Lakes Research2009，90，1： | 1 |
| 19 | Temporal and spatial variations of water quality in the Jinshui River of the South Qinling Mts., China显示文摘 | Hongmei Bu Xiang Tan Siyue Li Quanfa Zhang | 2009 | Ecotoxicology and Environmental Safety2009，，5： | 1 |
| 20 | Hydrothermal synthesis of ultrathin Bi_2MO_6(M=W,Mo) nanoplates as new host substances for red-emitting europium ion | Mingyun Guan Xianghong He Tongming Shang Jianhua Sun Quanfa Zhou | 2012 | Progress in Natural Science:Materials International2012，22，4： | 1 |
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