DEJA VU源于法文"似曾相识"一意,这家开在香山路上的家居展示厅,让我一眼瞥见就立刻喜欢上了它。这里的每一件商品都是根据客户的需求定制的。DEJAVU以个性的设计理念,为你定制打造家具和软装配饰,如软包,木质及金属、玻璃制...DEJA VU源于法文"似曾相识"一意,这家开在香山路上的家居展示厅,让我一眼瞥见就立刻喜欢上了它。这里的每一件商品都是根据客户的需求定制的。DEJAVU以个性的设计理念,为你定制打造家具和软装配饰,如软包,木质及金属、玻璃制品的家具,窗帘,床上用品等,并对家具本身的尺寸比例进行合理的调整,以充分吻合你的居室空间,更在色彩和材质上做出最恰当的选择,让这些都演绎成你独有的产品,你的创意在这里也可以得到采纳和大胆地实施,这便是DEJA VU的经典之处。另外,在这里定制的沙发因其用料、做工上乘且价格合理,尤其受到客户的亲睐。展开更多
Groundwater(GW)is a vital freshwater resource extensively exploited in the Vietnamese Mekong Delta,especially during the dry seasons.This study applies the Cumulative Rainfall Departure(CRD)method to estimate GW recha...Groundwater(GW)is a vital freshwater resource extensively exploited in the Vietnamese Mekong Delta,especially during the dry seasons.This study applies the Cumulative Rainfall Departure(CRD)method to estimate GW recharge in deep aquifers of Soc Trang Province,located in the southernmost region of Vietnam under a tropical climate.Monthly rainfall records and daily GW level data of the aquifers from 2010 to 2020 were used.The Pearson correlation between observed GW levels and CDR model GW levels exceeds 0.995,indicating high model accuracy.The analysis reveals that the CRD fractions for the Upper Pleistocene(qp3),Middle Pleistocene(qp2-3),Lower Pleistocene(qp1),and Middle Pliocene(n22)aquifers are 0.085%,0.104%,0.130%,and 0.180%,respectively,totaling approximately 0.5%of the annual rainfall.This corresponds to an annual GW recharge of 25.86 million m3,or 70,850 m3/day,equivalent to 70%of the current GW abstraction rate of 101,000 m3/day.Given the critical role of GW as a freshwater source,implementing an enhanced GW recharge program using surface water and rainwater is strongly recommended.Additionally,the analysis suggests that the decline in GW levels due to abstraction corresponds to 0.85 times the mean annual precipitation,a finding that warrants further investigation.展开更多
Recently identified hydrothermal monazite from the Sidaogou deposit in the Liaodong Peninsula,is co-genetic with gold-bearing ore minerals and thus can serve as ideal proxy for dating the gold-mineralization event.Our...Recently identified hydrothermal monazite from the Sidaogou deposit in the Liaodong Peninsula,is co-genetic with gold-bearing ore minerals and thus can serve as ideal proxy for dating the gold-mineralization event.Our study effectively solved the dilemma of lack of any accurate age for the Sidaogou deposit.The Sidaogou deposit is hosted mainly by Paleoproterozoic metamorphic rocks of the Liaohe Group,and hydrothermal monazite therein occurs within voids or along micro-fractures in syn-ore pyrite and quartz.First in situ SIMS U-Th-Pb isotope data on this monazite from the Sidaogou deposit yielded an inverse Concordia age of 184±20 Ma,which is much younger than an^(40)Ar-^(39)Ar age of 1858.9±25.4 Ma obtained on muscovite from the host rock(Gaixian Formation),thus supporting a prominent Early Jurassic gold mineralization event in the Wulong gold field,which is distinct from previously established Early Cretaceous gold mineralization,held responsible for the nearby large Wulong gold deposit.Our new findings make it possible,together with previous studies,to formulate a model for the Early Jurassic magmatic-hydrothermal gold system in the area,for which a compressional setting during the westward subduction of the Paleo-Pacific Plate beneath the North China Craton is postulated.展开更多
Climate change is expected to alter the popu-lation dynamics of pioneer tree species and their planned use in sustainable forest management,but we have a lim-ited understanding of how their demographic rates change in...Climate change is expected to alter the popu-lation dynamics of pioneer tree species and their planned use in sustainable forest management,but we have a lim-ited understanding of how their demographic rates change in response to climate changes during ecological restora-tion.Based on 12 years of demographic data for a pioneer tree species(Pinus massoniana)censused in three plots that correspond to three stages of ecological restoration in south-eastern China.We built integral projection models(IPMs)to assess vital rates(survival,growth,reproduction)and population growth in each plot,then evaluated demographic changes to simulated changes in seasonal mean temperature and precipitation in the current and previous census period.The plot representing the medium restoration stage had the highest population growth rate(λ=0.983).Mean population survival probability increased with ecological restoration,and reproduction probability was significantly suppressed at the high restoration stage.Survival is always the most important vital rate forλ,and climate affectsλprimarily via survival at each restoration stage.The current spring tem-perature was the most critical climate variable forλin the low and medium restoration stages,and previous summer temperature was most critical in the high restoration stage.Simulated warming leads to a decrease in the stochastic population growth rate(λ_(s))of P.massoniana in every stage.These findings suggest that during ecological restoration,P.massoniana responds to habitat change via modified demo-graphic performance,thus altering its response to climate change.Despite diverse responses to climate change,the persistence of P.massoniana populations is facing a wide-spread threat of warming states at each restoration stages.展开更多
基金completed as part of the Research project(CT.2022.01.MDA.02):"Research and evaluation of the role of the hydrogeological and engineering geological factors in the change of the flows and of the coastal area of the Hau River mouth in the southwest region of Vietnam",funded by the Vietnam Ministry of Education and Training.The GW monitoring data used in this study were sourced from BIGDATA,NAWAPI.
文摘Groundwater(GW)is a vital freshwater resource extensively exploited in the Vietnamese Mekong Delta,especially during the dry seasons.This study applies the Cumulative Rainfall Departure(CRD)method to estimate GW recharge in deep aquifers of Soc Trang Province,located in the southernmost region of Vietnam under a tropical climate.Monthly rainfall records and daily GW level data of the aquifers from 2010 to 2020 were used.The Pearson correlation between observed GW levels and CDR model GW levels exceeds 0.995,indicating high model accuracy.The analysis reveals that the CRD fractions for the Upper Pleistocene(qp3),Middle Pleistocene(qp2-3),Lower Pleistocene(qp1),and Middle Pliocene(n22)aquifers are 0.085%,0.104%,0.130%,and 0.180%,respectively,totaling approximately 0.5%of the annual rainfall.This corresponds to an annual GW recharge of 25.86 million m3,or 70,850 m3/day,equivalent to 70%of the current GW abstraction rate of 101,000 m3/day.Given the critical role of GW as a freshwater source,implementing an enhanced GW recharge program using surface water and rainwater is strongly recommended.Additionally,the analysis suggests that the decline in GW levels due to abstraction corresponds to 0.85 times the mean annual precipitation,a finding that warrants further investigation.
基金supported by the National Natural Science Foundation of China(No.42302079)Deep Earth Probe and Mineral Resources Exploration-National Science and Technology Major Project(No.2024ZD1001301)Geological Surveying Project of CGS(No.DD20230356)。
文摘Recently identified hydrothermal monazite from the Sidaogou deposit in the Liaodong Peninsula,is co-genetic with gold-bearing ore minerals and thus can serve as ideal proxy for dating the gold-mineralization event.Our study effectively solved the dilemma of lack of any accurate age for the Sidaogou deposit.The Sidaogou deposit is hosted mainly by Paleoproterozoic metamorphic rocks of the Liaohe Group,and hydrothermal monazite therein occurs within voids or along micro-fractures in syn-ore pyrite and quartz.First in situ SIMS U-Th-Pb isotope data on this monazite from the Sidaogou deposit yielded an inverse Concordia age of 184±20 Ma,which is much younger than an^(40)Ar-^(39)Ar age of 1858.9±25.4 Ma obtained on muscovite from the host rock(Gaixian Formation),thus supporting a prominent Early Jurassic gold mineralization event in the Wulong gold field,which is distinct from previously established Early Cretaceous gold mineralization,held responsible for the nearby large Wulong gold deposit.Our new findings make it possible,together with previous studies,to formulate a model for the Early Jurassic magmatic-hydrothermal gold system in the area,for which a compressional setting during the westward subduction of the Paleo-Pacific Plate beneath the North China Craton is postulated.
基金supported by the National Natural Science Foundation of China(grant no.31971638)the Public Welfare Project of Fujian Science and Technology Department(grant no.2024R1002001).
文摘Climate change is expected to alter the popu-lation dynamics of pioneer tree species and their planned use in sustainable forest management,but we have a lim-ited understanding of how their demographic rates change in response to climate changes during ecological restora-tion.Based on 12 years of demographic data for a pioneer tree species(Pinus massoniana)censused in three plots that correspond to three stages of ecological restoration in south-eastern China.We built integral projection models(IPMs)to assess vital rates(survival,growth,reproduction)and population growth in each plot,then evaluated demographic changes to simulated changes in seasonal mean temperature and precipitation in the current and previous census period.The plot representing the medium restoration stage had the highest population growth rate(λ=0.983).Mean population survival probability increased with ecological restoration,and reproduction probability was significantly suppressed at the high restoration stage.Survival is always the most important vital rate forλ,and climate affectsλprimarily via survival at each restoration stage.The current spring tem-perature was the most critical climate variable forλin the low and medium restoration stages,and previous summer temperature was most critical in the high restoration stage.Simulated warming leads to a decrease in the stochastic population growth rate(λ_(s))of P.massoniana in every stage.These findings suggest that during ecological restoration,P.massoniana responds to habitat change via modified demo-graphic performance,thus altering its response to climate change.Despite diverse responses to climate change,the persistence of P.massoniana populations is facing a wide-spread threat of warming states at each restoration stages.
