刘敏
1、城市自然地理学与环境过程研究;2、环境地理学与河口生物地球化学循环及其生态健康效应;3、城市LUCC与环境(灾害)效应;4、长江三角洲与城市环境的信息集成与服务。
个性化签名
- 姓名:刘敏
- 目前身份:
- 担任导师情况:
- 学位:
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学术头衔:
博士生导师
- 职称:-
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学科领域:
自然地理学(包括化学地理学、生态地理学、地貌学、冰)
- 研究兴趣:1、城市自然地理学与环境过程研究;2、环境地理学与河口生物地球化学循环及其生态健康效应;3、城市LUCC与环境(灾害)效应;4、长江三角洲与城市环境的信息集成与服务。
刘敏,男,1964年1月生,博士,教授,博士生导师。1995年毕业于中国科学院地质研究所,1995.9-1997.7华东师范大学地理系博士后,1998.12-1999.6英国萨尔福德大学(University of Salford)资源环境系、应用化学系高级访问学者,2004.3-4意大利威尼斯国际大学(Venice International University)水环境培训。
现任中国地理学会副秘书长,中国地理学会自然地理专业委员会副主任,中国自然资源学会湿地生态与保护专业委员会副主任,中国第四纪科学研究会海岸海洋专业委员会副主任,上海市地理学会秘书长,上海市防灾协会理事,《上海环境科学》杂志社理事,国际IGU-CE,EGH会员。
长期从事城市自然地理及其演变过程、河口湿地生态系统多物质生物地球化学循环、长江三角洲与城市环境信息集成与服务研究等方面的研究工作,特别在近年来对长江口生源要素和有机污染物(POPs)生物地球化学循环、城市自然地理与环境过程研究取得了实质性的进展。
目前,主持国家自然科学基金项目“长江口潮滩湿地温室气体CH4和N2O排放与影响机制”,国家自然科学基金重点项目“沿海城市自然灾害风险应急预案情景分析(子课题负责),高等学校博士学科点专项科研基金项目“长江口沉积物-水系统PAHs活化、迁移过程与生态效应”等项目,发表论文(著)80多篇(部)。
先后获省部级科技进步一等奖1项,三等奖1项,省教委科技进步一等奖1项,中国地质学会青年地质科技二等奖(银锤奖)1项,上海市优秀博士后,上海市“曙光学者”称号,上海市“曙光优秀学者”称号等。
主要研究方向:
1、城市自然地理学与环境过程研究;
2、环境地理学与河口生物地球化学循环及其生态健康效应;
3、城市LUCC与环境(灾害)效应;
4、长江三角洲与城市环境的信息集成与服务。
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298
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成果数
8
刘敏, Min Liu a, *, Shubo Cheng a, Dongni Ou a, Yi Yang b, Hualin Liu a, Lijun Hou c, Lei Gao a, Shiyuan Xu a
Environmental Pollution 156 (2008) 168-173,-0001,():
-1年11月30日
Total HCHs' and total DDTs' levels in surface sediments (SS) ranged from 0.5 to 17.5 ng g 1 and from 0.9 to 33.1 ng g 1, averaged 6.0 and 8.2 ng g 1, respectively. Total HCHs' and total DDTs' levels in suspended articulate matters (SPM) varied from 6.2 to 14.8 ng g 1 with a mean value of 12.3 ng g 1 and were from 3.4 to 25.7 ng g 1 with an average of 16.4 ng g 1, respectively. Lindane is the main HCHs' source and continuing use in the Yangtze Delta areas of 'pure' g-HCH (lindane) rather than technical HCH (a mix of largely a- and some g-HCH). DDTs in SS are mainly accumulated in history. However, high DDT fractions in SPM are indicators of new input of typical dicofol type DDT from 2002 to 2004. It can be seen that most samples from the Yangtze estuary were in ranges where adverse biological effects are expected, either occasionally or frequently.
Organochlorine pesticides, Sediments, Suspended particulate matters, Sources, The Yangtze estuary,, China
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【期刊论文】Characterization, identification of road dust PAHs in central Shanghai areas, China
刘敏, M. Liua, , S.B. Chenga, D.N. Oua, L.J. Houb, L. Gaoa, L.L. Wanga, Y.S. Xiea, Y. Yangc, S.Y. Xua
Atmospheric Environment 41 (2007) 8785-8795,-0001,():
-1年11月30日
Road dust samples were collected from central Shanghai in winter (January) and summer (August), respectively. Sixteen polycyclic aromatic hydrocarbons (PAHs) in the United States Environmental Protection Agency (USEPA) prioritycontrolled list were determined by GC/MS. Total PAH (t-PAH) concentrations in winter samples ranged from 9176 to 32,573 ng g 1 with a mean value of 20,648 ng g 1, while they varied from 6875 to 27,766 ng g 1 in summer with an average of 14,098 ng g 1. Spatial variation showed that city park (CP) samples had the lowest t-PAH concentration, while industrial area (ID) and traffic area (TR) and commercial area (CO) were the most polluted, in both seasons. PAH homologues concentrations were getting higher with the more rings and higher molecular weight (HMW) in all areas. The study of effective factors showed that grain size was only a minor factor influencing the accumulation of PAHs, whereas total organic carbon (TOC) was found to be closely correlated with t-PAH concentration. Prevailing winds could directly affect on the spatial distribution of PAHs. Chemical source apportionment studies took the form of principal component analysis (PCA), followed by compositional analysis. It was demonstrated that road dust PAHs in central Shanghai mainly came from the mixing of traffic and coal combustion. The contribution percentages of pyrogenic and petrogenic sources were respectively 71.0% and 11.4% in winter, while they were, 64.9% and 14.1% in summer, respectively. Road dust PAHs in Shanghai city mostly came from local sources.
Source identification, Urban road dust, Shanghai, China
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刘敏, M. Liu a, *, Y. Yang b, S. Xu a, H. Liu a, L. Hou c, D. Ou a, Q. Liu a, S. Cheng a
Chemosphere 62 (2006) 440-448,-0001,():
-1年11月30日
HCHs and DDTs in salt marsh plants taken from intertidal flats in the Yangtze estuary and coastal area in April and July 2002 were determined by GC-ECD. A significant seasonal effect was observed for HCHs and DDTs in sources and concentration levels in different sample types including above-ground tissues and roots as well as the whole plants and rhizospheric sediments. The results indicated that the concentration of t-HCH was higher in the above-ground tissues than in their roots in April; however, the partitioning of DDTs between contaminated sediments and the roots showed the higher concentrations of t-DDT in their roots. HCHs and DDTs concentration levels were higher in above-ground tissues than in roots in July. BCFs of HCHs and DDTs exhibited lower values with higher levels of contaminants in sediments, and higher values with lower levels in sediments.
HCHs, DDTs, Scirpus plants, Rhizospheric sediments, Roots, Above-ground tissues, Seasonal variation, BCFs, The Yangtze estuary
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【期刊论文】HCHs and DDTs in sediment-dwelling animals from the Yangtze Estuary, China
刘敏, Y. Yang a, b, M. Liu b, *, S. Xu b, L. Hou c, D. Ou b, H. Liu b, S. Cheng b, T. Hofmann a
Chemosphere 62 (2006) 381-389,-0001,():
-1年11月30日
HCHs and DDTs in sediment-dwelling animals including mollusks and crabs from the Yangtze Estuary were determined by GC-ECD. Levels of t-HCH were in the range of 1.2–5.5 ng g 1 and averaged 3.5 ng g 1 in mollusks, while t-DDT concentrations ranged from 26.0 to 68.8 ng g 1, with a mean of 34.5 ng g 1. In crabs t-HCH concentrations varied from 2.0 to 25.7 ng g 1 and averaged 13.8 ng g 1, whereas the concentrations of t-DDT were in the range of 1.5-24.8 ng g 1 with a mean value of 5.9 ng g 1. The HCHs and DDTs levels depend on geographical position and sources, showing the high levels at fresh water area in the estuary, such as XP, CM and LHK sites, and lower at brackish water area, such as FX site, and little difference between species. Results also indicate there was no significant relationship between t-HCH (t-DDT) concentrations and lipid contents both in mollusks and crabs because of non-equilibrium state under a specific estuarine dynamics; smaller individuals accumulated more HCHs and DDTs than larger individuals of mollusks at LHK site, showing different uptake rate for these pesticides; moreover, HCHs and DDTs levels were lower in female crab bodies than male crab bodies suggesting that the release of spawning. BSAFs (Biota- Sediment Accumulation Factors) from sediment-dwelling animals for HCHs and DDTs show a significant "one high with two low" and "one low with two high" effect in the Yangtze Estuary.
HCHs, DDTs, Sediment-dwelling animals, BSAFs, The Yangtze Estuary, China
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刘敏, M. Liu a, *, L.J. Hou b, S.Y. Xu a, D.N. Ou a, Y. Yang c, J. Yu a, Q. Wang a
Marine Pollution Bulletin 52 (2006) 1625-1633,-0001,():
-1年11月30日
The natural isotopic compositions and C/N elemental ratios of sedimentary organic matter were determined in the intertidal flat of the Yangtze Estuary. The results showed that the ratios of carbon and nitrogen stable isotopes were respectively 29.8& to 26.0& and 1.6&–5.5& in the flood season (July), while they were 27.3& to 25.6& and 1.7&-7.8& in the dry season (February), respectively. The d13C signatures were remarkably higher in July than in February, and gradually increased from the freshwater areas to the brackish areas. In contrast, there were relatively complex seasonal and spatial changes in stable nitrogen isotopes. It was also reflected that d15N and C/N compositions had been obviously modified by organic matter diagenesis and biological processing, and could not be used to trace the sources of organic matter at the study area. In addition, it was considered that the mixing inputs of terrigenous and marine materials generally dominated sedimentary organic matter in the intertidal flat. The contribution of terrigenous inputs to sedimentary organic matter was roughly estimated according to the mixing balance model of stable carbon isotopes.
Sedimentary organic matter, Stable carbon and nitrogen isotopes, C/, N elemental ratio, Intertidal flat, The Yangtze Estuary, China
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【期刊论文】Ammonium adsorption by tidal flat surface sediments from the Yangtze Estuary
刘敏, L.J. Hou Æ M. Liu Æ H.Y. Jiang Æ S.Y. Xu Æ D.N. Ou Æ Q.M. Liu Æ B.L. Zhang
Environmental Geology (2003) 45: 72-78,-0001,():
-1年11月30日
Ammonium adsorption by sediments plays an important role in the cycle of nitrogen in the estuarine tidal flat ecosystem. Ammonium adsorption on tidal flat sediments from the Yangtze estuary was studied using the simulation experiment. The findings indicated that there was linear adsorption by the tidal flat sediments for the lower ammonium concentration (<10 mM) in the overlying waters. The adsorption coefficient of ammonium in the study area ranged from 3.81 to 9.00, and had a significant positive correlation with total organic carbon (r=0.779, a=0.02284, n=8), reflecting that organic matter might be one of the main factors controlling the behavior of ammonium adsorption. It also showed that salinity had a pronounced effect on ammonium adsorption, and that salinity affected the distribution of ammonium between the sediments and waters. The amount of ammonium adsorption on sediments gradually decreased with the increasing salinity. Especially within the range of lower salinity, just a little change of salinity had a dramatic influence on ammonium adsorption by sediments.
Ammonium Æ Adsorption Æ Surface sediments Æ Tidal flat Æ Yangtze Estuary Æ China
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刘敏, M. Liua, *, P.J. Baughb, S.M. Hutchinsonc, L. Yud, S. Xua
Environmental Pollution 110 (2000) 357-365,-0001,():
-1年11月30日
Polycyclic aromatic hydrocarbons (PAHs) in a sediment core taken from intertidal ¯at in the Yangtze Estuary were determined by gas chromatography±mass spectrometry. The results indicate that the total concentration of PAHs ranged from 0.08 to 11.74 mg/g. The concentration levels of total and individual PAHs changed dramatically with depth. The concentrations of PAHs were relatively high above 35 cm depth and remained constantly low below this depth. The historical record of PAHs in the core shows subsurface maximum (one or more peak values), followed by decreased levels to the surface and with depth. And, PAH sediment record in the core pro®le is in agreement with historically sewage discharge events during the 1980s to 1990s. The distribution of target molecule acenephthene, the ¯uoranthene/pyrene ratio, the proportion of 2±3-ring and 4±5-ring PAHs, and alkylated naph- thalene to parent naphthalene in the core pro®le show that the sources in this area are characterized by petroleum-derived PAH contamination (mainly sewage discharge and the river runo) and the incorporation of atmospheric inputs. Studies indicate the PAH pro®le pattern in this site in comparison with other regions appear to re¯ect its particular local position (near the sewage outlet). Moreover, physico- hemical conditions and sedimentation rate as well as biodegradation also aect the PAH concentration levels in the core sediments. # 2000 Elsevier Science Ltd. All rights reserved.
PAHs, Core sediments, Intertidalats, Sources, The Yangtze Estuary,, China
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刘敏, Shiyuan Xu a, Xiaojiang Gao b, Min Liu a, Zhenlou Chen a
Geomorphology 41Ž2001.207-217,-0001,():
-1年11月30日
Concentrations of phosphorus (P) and polycyclic aromatic hydrocarbons (PAHs) were determined in tidal flat sediments from the Yangtze estuary and Hangzhou Bay. The amount of total P in surface sediments ranges from 18.0 to 31.4 -mol g-1 along the southern coast. The spatial and temporal distribution of P in tidal flats is closely related to geomorphological location and contaminant input, especially in association with variations in hydrodynamic conditions. Speciation of P in sediments was extracted sequentially. Results show that calcium phases are dominant in the total P of tidal flat sediments, which is similar to marine sediments. The main diffusion of dissolved P is from overlying water to sediment in the coastal environment of the Yangtze estuary. Two sediment cores from the Baoshan (BS) and Donghai (DH) sites were extracted for PAH analysis. The total concentration of PAHs ranges from 0.061 to 7.618 p-g g-1 at the BS site, and from 0.005 to 2.370 p-g g-at the DH site. The distribution of total and individual PAHs in the sediment shows a subsurface maximum, following by decreased levels to the surface and with depth. The pattern of PAH abundance suggests that there has been significant petroleum contamination in the Yangtze estuary. A few individual PAHs, such as acenaphthalene and anthracene in surface samples of the two cores, are in excess of current sediment quality criteria in the Yangtze estuary. The present study suggests that anthropogenic activities enhance contaminant inputs to the estuary. - 2001 Elsevier Science B.V. All rights reserved.
P, PAHs, Tidal fiat sediments, Yangtze estuary
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