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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 | 珠江三角洲一次典型复合型污染过程的模拟研究显示文摘利用空气质量模式系统(MM5-CAMQ-SMOKE),模拟珠江三角洲一次典型的复合型污染过程,研究O3、NOx及能见度等的时空变化,分析各种气溶胶的质量比例以及对消光的贡献.从模拟结果来看,模式系统能很好的模拟此次过程中光化学烟雾标识物的时空分布,以及灰霾的发生、减弱再到进一步加剧的过程.PM2.5占PM10的质量浓度份额平均为79.8%.爱根核和积聚核的数浓度比巨核数浓度平均高3~4个数量级.在气溶胶质量权重中,硫酸盐所占的比重最高,占PM2.5权重达到31%,元素碳为21%,有机碳为14%,铵盐为7.2%,硝酸盐为2%.在平均相对湿度下,二次气溶胶对消光的贡献超过50%,而在高相对湿度的情况下,二次气溶胶对消光的贡献超过70%.可见此次珠江三角洲地区能见度恶化主要是由各种化学过程生成的细粒子引起. | 邓涛 吴兑 邓雪娇 谭浩波 李菲 郑君瑜 廖碧婷 | 2012 | 中国环境科学2012,32,2: | 57 |
| 3 | 深圳市夏季臭氧污染研究显示文摘以2009年8月为例分析了深圳市夏季臭氧污染情况及污染气象特征,基于二维空气质量模式对臭氧污染控制进行数值模拟.结果表明:深圳市8月各监测点均存在臭氧超标现象,污染形势严峻;副热带高压控制和热带气旋外围下沉气流是造成夏季出现高浓度臭氧的主要天气过程,此时大气边界层混合层高度在500~800 m,且近地面风速约在5 m/s以内,不利于污染物扩散;臭氧的生成受前体物挥发性有机物(VOC)和氮氧化物(NOx)排放的共同影响,其中VOC排放的影响较大,深圳市臭氧控制应以降低VOC排放量为重点,模拟得出对VOC和NOx按2.5∶1~4.0∶1的比例协同减排可有效降低臭氧污染. | 颜敏 尹魁浩 梁永贤 庄毅璇 刘宝章 李金龙 刘长法 | 2012 | 环境科学研究2012,25,4: | 46 |
| 4 | 我国霾和光化学污染观测研究进展显示文摘霾和光化学污染已成为我国最严重的环境气象灾害,受到政府和公众广泛关注。针对我国的环境气象问题,国内外科研人员开展了大量研究工作,发表了一系列的研究成果。该文对近年来我国霾和光化学污染的观测、分析和影响研究方面的文献进行综述,为将来相关研究提供基础。在霾污染方面,主要回顾了霾的现象与判别、组成与来源、影响霾的气象因素、霾的长期趋势等方面的研究进展。在光化学污染方面,主要回顾了污染的特征与水平、污染的区域化、臭氧垂直分布、地面臭氧影响因素、臭氧污染发展趋势等方面的研究进展。此外,还概括了霾和光化学污染危害研究主要成果,在文献综述的基础上,提出了未来研究中值得关注的几方面问题,包括进一步加强霾和雾的科学判识方法、污染物相互作用、污染-气象-化学-生态间耦合效应研究,特别关注光化学污染发展态势,加强长期观测资料的积累、分析与应用等。 | 徐晓斌 | 2016 | 应用气象学报2016,27,5: | 34 |
| 5 | 新中国成立70年来的中国大气科学研究:大气物理与大气环境篇显示文摘新中国成立以来,中国大气物理与大气环境学科不断发展,为大气科学的发展提供了重要支撑,为国民经济的发展提供了重要保障.文章着重介绍新中国成立70年以来中国大气物理与大气环境学科发展的总体概况,梳理改革开放40年大气物理与大气环境学科的主要研究进展,总结21世纪以来的突出研究成果,指出面临的重大问题和挑战,提出未来的重点方向和发展建议. | 王体健 高太长 张宏昇 葛茂发 雷恒池 张培昌 张鹏 陆春松 刘超 张华 张强 廖宏 阚海东 冯兆忠 张义军 郄秀书 蔡旭晖 李蒙蒙 刘磊 佟胜睿 | 2019 | 中国科学:地球科学2019,49,12: | 28 |
| 6 | 2010—2016年上海城区臭氧长时间序列变化特征初探显示文摘基于2010—2016年上海城区近地面大气臭氧(O_3)的连续在线观测数据,研究了上海城区O_3长时间序列变化规律和污染特征.结果表明,近7年来上海城区O_3污染逐渐凸显,但总体以轻度污染为主,7—8月高温炎热季节以中度污染居多.城区O_3-8 h(臭氧日最大8 h滑动平均)年均增速为3.81μg·m^(-3)·a^(-1),99%和95%分位值增速较快,分别为6.65和4.94μg·m^(-3)·a^(-1);25%、50%和75%分位值的增速在3.06~4.45μg·m^(-3)·a^(-1)之间.春季O_3浓度均值较高,年际变化小;夏季极值较高,且污染超标情况最为突出;秋季O_3浓度次于春、夏季,冬季最低;夏、秋和冬季O_3浓度总体呈上升态势.O_3日变化呈'单峰型',最大值出现在13:00左右,且峰值逐年增加,污染持续时间变长,最小值出现在早晨7:00.城区O_3'周末效应'逐渐减弱.基于KZ过滤器方法的数据分析结果表明,上海城区O_3-8 h长期变化主要受O_3-BF(O_3-8 h的基准组分)影响;O_3-SF(O_3-8 h的天气影响组分)在5—9月对O_3-8 h影响较大,其范围为-98.85~139.60μg·m^(-3). | 张小娟 李莉 王红丽 陶士康 朱书慧 陈勇航 王军 游振宇 Jeremy C.Avise | 2019 | 环境科学学报2019,39,1: | 22 |
| 7 | 兰州市典型企业VOCs排放特征及反应活性分析显示文摘基于兰州市大气VOCs排放清单,选取石化厂、乙烯厂、涂料厂3个典型企业采集VOCs样品,分析其无组织排放特征,并采用MIR (最大增量反应活性)法和LOH(·OH反应速率)法综合评价其化学反应活性,识别各企业的VOCs活性优势物种,同时探究不同企业特征VOCs比值.结果表明:不同排放源φ(VOCs)差异较大,范围为20. 8×10^(-9)~6 520. 3×10^(-9).从VOCs物种构成上来看,涂料厂芳香烃占比最高,而石化厂、乙烯厂均以烷烃物种最为丰富,石化厂不同工艺VOCs物种构成略有差异.从活性上看,涂料厂VOCs活性最高,其LOH和OFP (臭氧生成潜势)分别为2 676. 9 s-1和72 519. 0×10^(-9),约为其他行业的18~1 000倍,间/对-二甲苯、乙苯、邻二甲苯等物种活性较大;其次为石化厂,其LOH和OFP分别为273. 2 s-1和4 039. 1×10^(-9),正戊烷、异戊烷、乙烯、丙烯等物种活性贡献率高,其中柴油工艺对石化厂VOCs活性贡献率最大;乙烯厂的OFP最低,其LOH和OFP分别为4. 6s-1和69. 7×10^(-9),其VOCs活性主要来自乙烯、丙烯、正丁烯等烯烃物种.各工业源BTEX (苯、甲苯、乙苯及3种二甲苯异构体的合称)分布具有一定的差异,对于指示不同VOCs来源有一定的参考价值,但不同源比值的重叠性也表明并非全部VOCs来源可以通过特征物种比值来区分.研究显示,控制工业源特别是涂料与石化工业VOCs的排放有助于控制兰州市O3的生成. | 吴亚君 胡君 张鹤丰 张敬巧 张萌 柴发合 王淑兰 | 2019 | 环境科学研究2019,32,5: | 23 |
| 8 | 光化学烟雾模拟实验系统显示文摘为开展光化学污染成因的敏感性分析,设计和建立了目前国内唯一的大型光化学烟雾模拟实验系统.该系统主要包括烟雾箱系统、空气充填置换系统、采样测试系统和记录显示控制系统等4个分系统.与国内外同类型实验系统相比,该系统具有烟雾箱在实验过程中受光均匀、换气系统快捷、效率高以及可实现两箱对比实验等特色.利用实验系统开展了光化学污染过程的模拟实验,得到了典型的污染特征.进行了同等条件的两箱对比实验,实验结果完全一致,表明该实验系统能够开展基于对比实验的敏感性分析研究,从而为进一步针对北京实际开展光化学污染的模拟研究奠定了良好的基础. | 任凯锋 李建军 王文丽 张会强 | 2005 | 环境科学学报2005,25,11: | 10 |
| 9 | Test of the uplift of Tibetan Plateau by FG5 absolute gravimeter at Lhasa station显示文摘The uplift of the Tibetan Plateau has been monitored by the FG5 absolute gravimeter, whose observing accuracy is as high as 1×10-8m/s2. The analysis of the gravity observation results at the Lhasa station in 1999 and 1993 shows that the gravity value has decreased by 12×10-8 m/s2, and it is confirmed that the Lhasa region is uplifting at a rate of 10 mm/a. | Weimin Zhang Yong Wang Houze Xu Chijun Zhang Xinghua Hao Ming Liu | 2001 | Chinese Science Bulletin2001,46,3: | 5 |
| 10 | Review of Chinese atmospheric science research over the past 70 years: Atmospheric physics and atmospheric environment显示文摘Since the founding of the People’s Republic of China 70 years ago,the subject of atmospheric physics and atmospheric environment has developed rapidly in China,providing important support for the development of atmospheric science and guarantee for the development of national economy.In this paper,the general advancement of atmospheric physics and atmospheric environment in last 70 years was described.The main research progress of atmospheric physics and atmospheric environment in the past 40 years of reform and opening-up was reviewed,the outstanding research achievements since the 21 st century were summarized,the major problems and challenges are pointed out,and the key directions and suggestions for future development are put forward. | Tijian WANG Taichang GAO Hongsheng ZHANG Maofa GE Hengchi LEI Peichang ZHANG Peng ZHANG Chunsong LU Chao LIU Hua ZHANG Qiang ZHANG Hong LIAO Haidong KAN Zhaozhong FENG Yijun ZHANG Xiushu QIE Xuhui CAI Mengmeng LI Lei LIU Shengrui TONG | 2019 | Science China Earth Sciences2019,62,12: | 5 |
| 11 | 兰州市大气PM_(2.5)中水溶性无机离子特征及其季节性差异显示文摘于2013年非采暖期(秋季)和采暖期(冬季)分别对兰州市代表性功能区(城关居民区和西固工业区)大气PM_(2.5)中的6种水溶性无机离子进行了观测研究.结果表明:兰州市大气PM_(2.5)中Na^+、K^+、NH_4^+、Cl^-、NO_3^-、SO_4^(2-)的质量浓度具有明显的季节性差异,采样期间平均质量浓度分别为1.17、1.45、10.75、5.92、13.09、15.46μg/m^3,水溶性无机离子在PM_(2.5)中所占的平均比例为37.01%,非采暖期平均质量浓度分别为0.91、1.23、9.57、3.74、11.56、14.69μg/m^3;采暖期平均质量浓度分别为1.44、1.67、11.93、8.10、14.62、16.23μg/m^3;采样期间6种水溶性无机离子的质量浓度均为采暖期大于非采暖期,西固工业区高于城关居民区(K^+除外).NO_3^-/SO_4^(2-)的比值表明兰州市大气污染正由煤烟型向汽车尾气型特征转换.兰州市大气PM_(2.5)中的NH_4^+与SO_4^(2-)主要以(NH_4)_2SO_4方式结合. | 沈艳洁 贾晨辉 郭强 毛潇萱 黄韬 马建民 高宏 | 2016 | 兰州大学学报(自然科学版)2016,52,3: | 4 |
| 12 | Continuous and comprehensive atmospheric observations in Beijing:a station to understand the complex urban atmospheric environment显示文摘Due to profound impact on climate and human health,air quality has attracted attention from all levels of the civil society.The key step in the provision of required tools for the society to tackle the complex air quality problem is to characterize it in a comprehensive manner with a long-term perspective.Here,we describe a continuous and comprehensive observation station and its accompanying state-ofthe-art instrumentation that was established to investigate the complex urban atmospheric environment in a rapidly developing Chinese Megacity.The station,located in downtown Beijing,aims to study air quality by identifying the major atmospheric pollutants and key processes determining their formation and loss mechanisms.A few hundreds of parameters are continuously measured with the state-of-the-art instruments,including trace gas concentrations,aerosol particle size distributions,and mass concentrations,covering aerosol particle chemical composition from molecules to micrometer-sized aerosol particles.This produced long-term,comprehensive big data with around 1�10^(11)bytes per year.In this paper,we provide an overview on the facilities of the station,the instrumentation used,the workflow of continuous observations and examples of results from 2018 to 2019 and a basis for establishing a modern long-term,comprehensive atmospheric urban observation station in other megacities. | Yongchun Liu Chao Yan Zemin Feng Feixue Zheng Xiaolong Fan Yusheng Zhang Chang Li Ying Zhou Zhuohui Lin Yishou Guo Ying Zhang Li Ma Wenshuo Zhou Zhikun Liu Lubna Dada Kaspar Dallenbach Jenni Kontkanen Runlong Cai Tommy Chan Biwu Chu Wei Du Lei Yao Yonghong Wang Jing Cai Juha Kangasluoma Tom Kokkonen Joni Kujansuu Anton Rusanen Chenjuan Deng Yueyun Fu Rujing Yin Xiaoxiao Li Yiqun Lu Yiliang Liu Chaofan Lian Dongsen Yang Weigang Wang Maofa Ge Yuesi Wang Douglas R.Worsnop Heikki Junninen Hong He Veli-Matti Kerminen Jun Zheng Lin Wang Jingkun Jiang Tuukka Petaja Federico Bianchi Markku Kulmala | 2020 | Big Earth Data2020,4,3: | 3 |
| 13 | 大气中HONO来源的研究进展显示文摘由于亚硝酸(HONO)在大气中所扮演的重要角色如:OH自由基的前体物以及对臭氧和光化学烟雾形成的促进作用而引起科学界的广泛关注,然而对于大气中HONO的来源问题,特别是它的非均相形成过程目前尚未清楚。本文从HONO在大气中的重要意义及目前国际上对HONO来源的研究现状,特别是它的非均相形成机理进行了阐述;由于其在大气化学中的重要意义,提出我国开展大气HONO研究的重要性,并对其来源问题进行了讨论与展望。 | 秦敏 刘文清 谢品华 刘建国 方武 张为俊 | 2005 | 中国环境监测2005,21,3: | 2 |
| 14 | Features of major greenhouse gases in loess,Shanxi Province,China显示文摘According to the investigations of five loess sections in Shanri Province, China, it was found that the concentrations of the major greenhouse gases CO2, CH4 and N2O in loess-paleosol sequences are generally high, even sometimes may be several times or scores of tunes higher than their atmospheric concentrations respectively. Although the CO2 concentration in the same loess section shows poor regularity among different layers, it increases slowly from north to south in space. The CH4 concentration in the layers under Malan Loess is much higher than that in the atmosphere, although it is not high in Malan Loess. Most of the δ13C values of CO2 in loess are -11.14‰-15.48‰, (relative to PDB standard). Analysis of carbon isotopic compositions of CO2 indicates that the main source of CO2 in loess section is decomposition of ’stable’ organic matters by microbes. The δ13Cg of CO2 is a little heavier than organic source for exchanging carbon isotope with carbonate in loess. The abundant carbonate in loess | Qiang Liu Jiaqi Liu Shuzhen Sui | 2001 | Chinese Science Bulletin2001,46,17: | 2 |
| 15 | Research on ozone formation sensitivity based on observational methods:Development history,methodology,and application and prospects in China显示文摘Observation-based method for O_(3)formation sensitivity research is an important tool to analyze the causes of ground-level O_(3)pollution,which has broad application potentials in determining the O_(3)pollution formation mechanism and developing prevention and control strategies.This paper outlined the development history of research on O_(3)formation sensitivity based on observational methods,described the principle and applicability of the methodology,summarized the relative application results in China and provided recommendations on the prevention and control of O_(3)pollution in China based on relevant study results,and finally pointed out the shortcomings and future development prospects in this field in China.The overview study showed that the O_(3)formation sensitivity in some urban areas in China in recent years presented a gradual shifting tendency from the VOC-limited regime to the transition regime or the NO_(x)-limited regime due to the implementation of the O_(3)precursors emission reduction policies;O_(3)pollution control strategies and precursor control countermeasures should be formulated based on local conditions and the dynamic control capability of O_(3)pollution control measures should be improved.There are still some current deficiencies in the study field in China.Therefore,it is recommended that a stereoscopic monitoring network for atmospheric photochemical components should be further constructed and improved;the atmospheric chemical mechanisms should be vigorously developed,and standardized methods for determining the O_(3)formation sensitivity should be established in China in the near future. | Wanghui Chu Hong Li Yuanyuan Ji Xin Zhang Likun Xue Jian Gao Cong An | 2024 | Journal of Environmental Sciences2024,,4: | 0 |