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| 1 | Altered trends in carbon uptake in China’s terrestrial ecosystems under the enhanced summer monsoon and warming hiatus显示文摘The carbon budgets in terrestrial ecosystems in China are strongly coupled with climate changes.Over the past decade,China has experienced dramatic climate changes characterized by enhanced summer monsoon and decelerated warming.However,the changes in the trends of terrestrial net ecosystem production(NEP)in China under climate changes are not well documented.Here,we used three ecosystem models to simulate the spatiotemporal variations in China's NEP during 1982–2010 and quantify the contribution of the strengthened summer monsoon and warming hiatus to the NEP variations in four distinct climatic regions of the country.Our results revealed a decadal-scale shift in NEP from a downtrend of–5.95 Tg C/yr^2(reduced sink)during 1982–2000 to an uptrend of 14.22 Tg C/yr^2(enhanced sink)during 2000–10.This shift was essentially induced by the strengthened summer monsoon,which stimulated carbon uptake,and the warming hiatus,which lessened the decrease in the NEP trend.Compared to the contribution of 56.3%by the climate effect,atmospheric CO2 concentration and nitrogen deposition had relatively small contributions(8.6 and 11.3%,respectively)to the shift.In conclusion,within the context of the global-warming hiatus,the strengthening of the summer monsoon is a critical climate factor that enhances carbon uptake in China due to the asymmetric response of photosynthesis and respiration.Our study not only revealed the shift in ecosystem carbon sequestration in China in recent decades,but also provides some insight for understanding ecosystem carbon dynamics in other monsoonal areas. | Honglin He Shaoqiang Wang Li Zhang Junbang Wang Xiaoli Ren Lei Zhou Shilong Piao Hao Yan Weimin Ju Fengxue Gu Shiyong Yu Yuanhe Yang Miaomiao Wang Zhongen Niu Rcmg Ge Huimin Yan Mei Huang Guoyi Zhou Yongfei Bai Zongqiang Xie Zhiyao Tang Bingfang Wu Leiming Zhang Nianpeng He Qiufeng Wang Guirui Yu | 2019 | National Science Review2019，6，3： | 24 |
| 2 | Two Ultraviolet Radiation Datasets that Cover China显示文摘Ultraviolet(UV) radiation has significant effects on ecosystems, environments, and human health, as well as atmospheric processes and climate change. Two ultraviolet radiation datasets are described in this paper. One contains hourly observations of UV radiation measured at 40 Chinese Ecosystem Research Network stations from 2005 to 2015. CUV3 broadband radiometers were used to observe the UV radiation, with an accuracy of 5%, which meets the World Meteorology Organization's measurement standards. The extremum method was used to control the quality of the measured datasets. The other dataset contains daily cumulative UV radiation estimates that were calculated using an all-sky estimation model combined with a hybrid model. The reconstructed daily UV radiation data span from 1961 to 2014. The mean absolute bias error and root-mean-square error are smaller than 30% at most stations, and most of the mean bias error values are negative, which indicates underestimation of the UV radiation intensity. These datasets can improve our basic knowledge of the spatial and temporal variations in UV radiation. Additionally, these datasets can be used in studies of potential ozone formation and atmospheric oxidation, as well as simulations of ecological processes. | Hui LIU Bo HU Yuesi WANG Guangren LIU Liqin TANG Dongsheng JI Yongfei BAI Weikai BAO Xin CHEN Yunming CHEN Weixin DING Xiaozeng HAN Fei HE Hui HUANG Zhenying HUANG Xinrong LI Yan LI Wenzhao LIU Luxiang LIN Zhu OUYANG Boqiang QIN Weijun SHEN Yanjun SHEN Hongxin SU Changchun SONG Bo SUN Song SUN Anzhi WANG Genxu WANG Huimin WANG Silong WANG Youshao WANG Wenxue WEI Ping XIE Zongqiang XIE Xiaoyuan YAN Fanjiang ZENG Fawei ZHANG Yangjian ZHANG Yiping ZHANG Chengyi ZHAO Wenzhi ZHAO Xueyong ZHAO Guoyi ZHOU Bo ZHU | 2017 | Advances in Atmospheric Sciences2017，34，7： | 2 |
| 3 | Selective synthesis of cis-2,6-dimethylpiperazine catalyzed by a Cu-Cr-Fe /γ-Al2O3 catalyst显示文摘 | Guoyi BAI Ligong CHEN Yang LI | 2004 | Appl Catal A2004，277，12： | 1 |
| 4 | Friedel-crafts hydroxyalkylation of anisole over oxalic acid modifed Hfl ze olite 显示文摘 | BAI Guoyi DOU Haiyang QIU Mande | 2010 | Catalysis Letters2010，138，34： | 1 |
| 5 | Amination of ethanolamine over cobalt modified H-ZSM-5 catalysts显示文摘 | Yuecheng Zhang Guoyi Bai | 2007 | Catalysiscom munication2007，，8： | 1 |
| 6 | Continuous hydrogenation of hydroquinone to 1,4-cyclohexartediol over alkaline earth metal modified nickel-based catalysts 显示文摘 | Guoyi Bai Fei Li Xinxin Fan | 2012 | Catalysis Communications2012，17，： | 1 |
| 7 | Friedel-Crafts hydroxyalkylation of anisole over oxalic acid modified Hβ zeolite 显示文摘 | BAI Guoyi DOU Haiyang QIU Mande | 2010 | Catalysis Letters2010，138，34： | 1 |
| 8 | Selective synthesis of cis-2,6-dimethylpiperazine catalyzed by a Cu-Cr-Fe/g- A12O3 catalyst 显示文摘 | Bai Guoyi Chen Ligong Li Yang | 2004 | Applied Catalysis2004，277，： | 1 |
| 9 | The Maximum Information Principle and the Evolution of Nucleotide Sequences显示文摘 | Bai Guoyi | 1995 | J Theor Biol1995，174，： | 1 |
| 10 | Amination of ethanolamine over cobalt modified H-ZSM-5 catalysts 显示文摘 | Zhang Yuecheng Bai Guoyi | 2007 | Catalysis Communications2007，8，7： | 1 |
| 11 | Continuous hydrogena- tion of hydroquinone to 1,4-cyclohexanediol over alkaline earth metal modified nickel-based catalysts 显示文摘 | Bai Guoyi Li Fei Fan Xinxin | 2012 | Catalysis Communication2012，17，： | 1 |
| 12 | Facile Preparation of a Stable Fe3O4@LDH@NiB Magnetic Core-Shell Nanocomposite for Hydrogenation显示文摘一张新奇的嘴扔了分层的双氢氧化物(LDH ) 涂的 ferroferric 氧化物(Fe 3 O 4@LDH@NiB) 磁性的核心壳 nanocomposite 被一起沉淀和受精减小的联合成功地制作。在 Fe 3 O 4@LDH 准备,一条灵巧的没有模板的途径被采用介绍 LDH 壳,它是比为总是需要介绍并且搬迁模板的 mesoporous 材料的准备的常规方法更有效的。结果的 Fe 3 O 4@LDH 有一个相对高的表面区域和丰富的表面氢氧根组,它能吸附金属离子,使,驱散并且稳定活跃 Ni 种类有利由 TEM, XPS,英尺红外和赌注描述的 demonstraed。因此,它与两个都来临到 100% 的变换和选择在苯乙烯的酸的选择加氢展出了好活动到 hydrocinnamic 酸。尤其是,获得的 Fe 3 O 4@LDH@NiB 能被一个外部磁场容易分开并且没有它的起始的催化活动的可估计的损失,再循环十一次。 | Xuejia Gao Libo Niu Xianliang Qiao Wenhui Feng Yingying Cao Guoyi Bai | 2017 | Chinese Journal of Chemistry2017，35，7： | 0 |
| 13 | Continuous Dehydrogenation of n-Pentanol over a Cr Modified Cu/γ-Al_(2)O_(3)-La_(2)O_(3)Catalyst显示文摘The oxidant-free dehydrogenation of n-pentanol over copper based catalysts was investigated in this paper.The effect of metal modification on the activity and stability of the copper catalyst supported onγ-Al_(2)O_(3)and La_(2)O_(3)(Cu/γ-Al_(2)O_(3)-La_(2)O_(3))was clarified and a Cr modified Cu/Al_(2)O_(3)-La_(2)O_(3)(Cu-Cr/γ-Al_(2)O_(3)-La_(2)O_(3))showed the best catalytic performance.The conversion of n-pentanol was 70.0%and the selectivity for n-pentanal increased to 97.1%over Cu-Cr/γ-Al_(2)O_(3)-La_(2)O_(3).X-ray diffraction and temperature programmed reduction of H2 indicated that the addition of Cr favors the formation and reduction of the copper oxide,and the dispersion of the active Cu^(0) species,accounting for the good activity and stability of this catalyst.Furthermore,the lower amount of acidic sites in Cu-Cr/γ-Al_(2)O_(3)-La_(2)O_(3)is suggested to suppress the dehydration in oxidant-free dehydrogenation of n-pentanol,accounting for the higher selectivity for n-pentanal. | Chen Liu Yalong Wang Hailong Chu Mande Qiu Libo Niu Guoyi Bai | 2014 | Chinese Journal of Chemistry2014，32，12： | 0 |
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