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Variation Characteristics of Water environmental Capacity in poyang lake under the Scheduling of Three Gorges Reservoir

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Meteorological and environmental Research 2011年第3期2卷 46-48,52页

作者： OU Ming-liang1,2,ZHOU Wen-bin2,3,HU Chun-hua2,3 1.College of Civil and environment Engineering,East china Institute of Technology,Fuzhou 344000,china 2.key laboratory of environment and resource utilization in poyang lake,ministry of education,nanchang 330031,china 3.Institute of environmental and Chemical Engineering,nanchang University,nanchang 330031,china

[Objective] The aim was to study the variation characteristics of water environmental capacity in poyang lake under the scheduling of Three Gorges Reservoir.[Method] Choosing chemical oxygen demand (COD),total nitrogen (TN) and total phosphorus (TP) as the control indexes of pollutants in poyang lake,the variation characteristics of water environmental capacity in poyang lake under the scheduling of Three Gorges Reservoir were analyzed based on the water environment mathematical models of organic compounds and nutrients.[Result] After the operation of Three Gorges Project,high water level in poyang lake lasted for a long time in flood season when Three Gorges Reservoir increased discharge volume,while water level went down obviously with the accelerating of recession flow when reservoir decreased discharge volume to store water,so Three Gorges Project had obvious effects on the hydrological regime of poyang *** 2009,when Three Gorges Reservoir stored water,the water environmental capacity of COD,TN and TP in poyang lake in October decreased by 14.0%,15.4% and 15.4% compared with those before operation,while they increased by 3.64%,4.88% and 4.88% in August when reservoir discharged water to prevent flood.[Conclusion] The study could provide scientific foundation for the water pollution control and water environment management of lakes.

关键词： Three Gorges Project poyang lake Water environmental capacity china

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Atmospheric correction of HJ-1A/B CCD images over Chinese coastal waters using MODIS-Terra aerosol data

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Science china(Technological Sciences) 2010年第S1期53卷 191-195页

作者： TIAN LiQiao 1,LU JianZhong 1,CHEN XiaoLing 1,2,3,YU ZhiFeng 1,XIAO JingJing 1,QIU Feng 1 & ZHAO Xi 1 1 State key laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,china 2key laboratory of poyang lake Wetland and Watershed Research,ministry of education,Jiangxi Normal University,nanchang 330022,china 3 The key laboratory of poyang lake environment and resource utilization,ministry of education,nanchang University,nanchang 330031,china State key laboratory of Information Engineering in Surveying Mapping and Remote Sensing Wuhan University Wuhan China key laboratory of poyang lake Wetland and Watershed Research Ministry of Education Jiangxi Normal University Nanchang China The key laboratory of poyang lake environment and resource utilization Ministry of Education Nanchang University Nanchang China

This paper demonstrates an atmospheric correction method to process HJ-1A/B CCD images over Chinese coastal waters with the aid of MODIS-Terra aerosol *** on the assumption of zero water-leaving radiance at the two near-infrared (NIR)bands or the shortwave infrared(SWIR)bands,the atmospheric aerosol optical depth(AOD)is firstly retrieved from MODIS-Terra with a simple extension of the NIR-SWIR combined atmospheric correction approach embedded in SeaDAS (SeaWiFS data analysis system).Then the"turbid"and"non-turbid"waters are separated by the turbid water *** probability of AOD at 551 nm band is derived based on the NIR information over"non-turbid"waters and FLAASH model is selected to do the atmospheric correction of the HJ-1A/B CCD imagery using the AOD values of highest probabilities as ***,according to the histogram of the AOD distribution at 551 nm band,the studied turbid water area is divided into several blocks and HJ-1A/B CCD imagery is corrected with the corresponding AOD values displayed with the highest frequency in each *** method has been applied to several HJ-1A/B images over Chinese coastal waters and validated by synchronous in-situ *** results have shown that this method is effective in the atmospheric correction process of HJ-1A/B CCD images for ocean color remote sensing study and application in the coastal waters.

关键词： ocean color remote sensing atmospheric correction turbid coastal waters HJ-1A/B MODIS

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Phosphorus forms and distribution in the sediments of poyang lake,china

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International Journal of Sediment Research 2011年第2期26卷 230-238页

作者： XIANG Su-lin and ZHOU Wen-bin 1 Lecturer,key Lab of poyang lake Ecology and Bio-resource utilization,ministry of education,nanchang University,nanchang 330047,china and Department of environmental Engineering,East china JiaoTong University,nanchang 330013,china, 2 Prof,key Lab of poyang lake Ecology and Bio-resource utilization,ministry of education,nanchang University,nanchang 330047,china Lecturer Key Lab of Poyang Lake Ecology and Bio-resource Utilization Ministry of Education Nanchang University Nanchang 330047 China and Department of Environmental Engineering East China JiaoTong University Nanchang 330013 China Prof. Key Lab of Poyang Lake Ecology and Bio-resource Utilization Ministry of Education Nanchang University Nanchang 330047 China

The forms and distribution of phosphorus in the sediments of poyang lake were studied using chemical extraction methods to understand the potential release and adsorption of *** results showed that phosphorus in the sediments mainly consisted of inorganic phosphorous species, including iron bound phosphorus,calcium bound phosphorus,aluminium bound phosphorus and dissolved phosphorus,as well as organic phosphorous *** spatial distribution of phosphorus species in surface sediments showed a decreasing trend from the outlet to the entrance of poyang *** content of total phosphorus in the surface sediments ranged from 688.29 to 825.36 mg/kg, and inorganic phosphorous was the major phosphorus *** bound phosphorus was the dominant form of inorganic phosphorous,accounting for greater than 40%of the total phosphorus, while calcium bound phosphorus and aluminium bound phosphorus accounted for more than 20%, and dissolved phosphorus accounted for less than 5%.The content of organic phosphorus in surface sediments was lower,accounting for less than 15%.Total phosphorus was positively correlated with iron bound phosphorus,aluminium bound phosphorus,calcium bound phosphorus and organic phosphorous,while organic phosphorous was positively correlated with iron bound phosphorus and aluminium bound phosphorus,but only weakly related to calcium bound *** all six sites, the contents of total phosphorus and phosphorus forms in the core sediments obviously decreased with depth,while they were significantly enriched in the surface *** total phosphorus and phosphorus forms contents were significantly higher in the upper layers and had a tendency to decrease toward the bottom of the core,regardless of the phosphorus *** addition,the average contents of total phosphorus and various phosphorus forms decreased rapidly with sediment depth from 0-20 cm,and then decreased slightly from 20-30 cm.

关键词： poyang lake Phosphorus forms Distribution characteristics Sediment

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Towards a degradation-based mechanism for adaptive overload control

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Science china(Information Sciences) 2012年第12期55卷 2708-2722页

作者： WANG ZiYou 1,2,ZHOU MingHui 1,2 & MEI Hong 1,2 1 Software Institute,School of Electronics Engineering and Computer Science,Peking University,Beijing 100871,china 2.key laboratory of High Confidence Software Technologies(Peking University),ministry of education,Beijing 100871,china Software Institute School of Electronics Engineering and Computer Science Peking University Beijing China ministry of education Key Laboratory of High Confidence Software Technologies (Peking University) Beijing China

Uncontrolled overload is one of the major causes of the system's decline in reliability and performance for web *** also harms the construction of trustworthy *** paper presents a degradationbased mechanism to adaptively control overload in complex,dynamic web *** our mechanism,the bottlenecks in the application's performance are determined by internally monitoring the performance and resource utilization state of the application,which is decomposed into a set of *** locating the bottlenecks,two decision algorithms are proposed to dynamically and adaptively generate proper degradation plans without *** degrading the service which consumes critical resources and has a low priority from the perspective of business logic,the application can keep providing key services even when overload *** implement a prototype and conduct a case study on a wiki *** also evaluate our approach and demonstrate its effectiveness in simulated overload *** handling overload,we make a breakthrough in building trustworthy software in an open,dynamic and rapidly changing environment.

关键词： overload service degradation resource monitoring performance management

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Multilevel Recycling Waste Water of Raising Pigs Based on Local Farming Model and Its Effect Evaluation

Multilevel Recycling Waste Water of Raising Pigs Based on Lo...

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2012年环境污染与大众健康学术会议

作者： Yuandong XIAO 1,2 , Xiaozhen LIU 3,4 , Chunli LUO 1 , Yue LIANG 3,4 ,Xu CHEN 1 ,Ming XU 3,4 1、College of Land resource and environment, Jiangxi Agricultural University, nanchang 330045, P.R. china 2、Agriculture and Ecology Engineering Research Center of Po-yang lake Watershed,nanchang 330045, Peoples Republic of china 3、key Lab. of poyang lake environment and resource utilization, nanchang University, ministry of education, nanchang 330047, P.R.china 4. College of environmental Science and Engineering, nanchang University, nanchang 330031, P.R. china

A large-scale pig farms in Jiangxi Province was researched ,a model of resource utilization for breeding wastewater was established with methane tank →clarifier →reservoir breeding →farmland irrigation. The results showed that the concentrations of COD, ammonia nitrogen and total phosphorus of the treated wastewater were 59.13mg/L,1.15mg/L and 0.015mg/L respectively , the degradation rates of which were 24.2%,99.34%,93.85% separately. The fish bait of reservoir for fish culture was saved by discharging certain concentration wastewater into it while the organic matter in the aquiculture wastewater was degraded by ecosystem. The reservoir water was used later as irrigation water and organic matter in the aquiculture wastewater was degraded thoroughly, which decreased the cost of discharging sewage from farms, eliminating pig emission pollution to the environment and increasing crop yields. The above model was an ecomodel, not only treating cultivating wastewater but also recycling the waste water. The management of piggery wastewater and monitoring of reservoir water quality were suggested in order to avoid water eutrophication.

关键词： Piggery wastewater Reservoir Field irrigation resource recycling

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庐山风景名胜区旅游环境容量分析

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城市环境与城市生态 2009年第4期22卷 16-20页

作者：万金保朱邦辉南昌大学鄱阳湖湖泊生态与生物资源利用教育部重点实验室南昌330047 南昌大学环境与化学工程学院南昌330031

运用有关旅游环境容量的理论与方法,通过资源空间容量、生态环境容量、经济发展容量和当地居民心理容量4个子系统进行分析,得出庐山风景名胜区旅游环境容量综合值为12804人次/d,其中生态环境容量中的水环境容量是最主要的限制因子。最... 详细信息

运用有关旅游环境容量的理论与方法,通过资源空间容量、生态环境容量、经济发展容量和当地居民心理容量4个子系统进行分析,得出庐山风景名胜区旅游环境容量综合值为12804人次/d,其中生态环境容量中的水环境容量是最主要的限制因子。最后指出庐山风景名胜区以牯岭镇为单一中心的空间格局和旅游路线是造成庐山旅游压力的根本原因,并提出相应的解决措施。

关键词：庐山风景名胜区旅游环境容量水环境容量

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北京市城市湖泊上空甲烷浓度水平和季节特征

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城市环境与城市生态 2009年第6期22卷 1-5页

作者：艾永平王效科弓晓峰段晓男欧阳志云南昌大学环境与化学工程学院南昌330031 中国科学院生态环境研究中心城市与区域生态国家重点实验室北京100085 南昌大学鄱阳湖环境与资源利用教育部重点实验室南昌330047

通过对北京市市区内大于10 000 m2的10个湖泊上空0.5 m处甲烷浓度的季度观测,研究了北京市城市湖泊上空甲烷的浓度水平,并对其中4个典型的湖泊进行了每月1~2次的观测,分析了城市湖泊上空甲烷浓度的连续变化特征。结果表明湖泊上空甲烷... 详细信息

通过对北京市市区内大于10 000 m2的10个湖泊上空0.5 m处甲烷浓度的季度观测,研究了北京市城市湖泊上空甲烷的浓度水平,并对其中4个典型的湖泊进行了每月1~2次的观测,分析了城市湖泊上空甲烷浓度的连续变化特征。结果表明湖泊上空甲烷浓度年平均值为2.337±0.431 mL/m3,高于全球均值和其他相关研究人员对北京市上空监测的结果。湖泊上空甲烷浓度季节之间的差异性显著(P2.758±0.516mL/m3),秋季和春季相对较低。4个典型湖泊上空甲烷浓度连续变化具有一定的规律,大都在7-8月份达到甲烷浓度的高峰期,3月初融冰时都会有小幅增加;位于市中心的什刹海上空甲烷浓度相对较高。这表明了北京市内湖泊是甲烷排放的一个重要源头,同时也反映了北京作为一特大城市,其湖泊上空甲烷浓度受人类活动影响的特征。

关键词：城市湖泊甲烷浓度季节特征

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Comprehensive utilization of Copper Tailings in Sichuan Province

Comprehensive Utilization of Copper Tailings in Sichuan Prov...

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2011 IEEE International Conference on Waste Recycling,Ecology and environment(ICWREE 2011)

作者： Aiping LIU1 Qiming FENG1 * Weiqing WANG2 Lili HE1 Bolian ZHANG1 1key laboratory of Waste Solid Treatment and resource Recycle of ministry of education Mianyang Sichuan china 2 School of environmental engineering and resources Southwest University of Science and Technology Mianyang china

The chemical composition, mineral composition, relative content, granularity and granularity distribution of the copper tailings in Sichuan were tested and studied. The tailings shale solid bricks were prepared by adding the tailings to shale as different ratio, and the effect of different ratio of materials and firing system on the compression strength of the products was studied. Use the tailings as fine aggregate, cement as cementing material, lime as activator and concrete foaming agent as pre-pore agent, cast molding, and then cure 28d. The compression strength and density of the products were tested, and the effect of different ratio of materials and curing condition on properties of lightweight non-sintered was studied. The results indicated when the addition amount of tailings was 25% to 45%, sintered temperature was 950℃ to 1050℃ and thermal insulation time was 3h, the compression strength of the bricks reached to 14.4Mpa to 40.1Mpa, water absorptivity was 8.7% to 13.9%, which have reached to the national startand of sintered shale solid brick （GB5101-2003）. When the addition amount of tailings was 70% to 80%, the dry volume weight of the lightweight non-sintered brick was equivalent to 2/3 of shale solid brick, the compression strength reached to 5.4Mpa to 10.4Mpa, the bricks could be applicable to use filling block of building loading and non-loading, and belong to low-energy environmental friendly wall material.

关键词： Mircoorganism Magnetic sorbent Crude oil spill Cleanup Biomorphic mineralization

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后石油经济时代的石油化学工业

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石油化工 2009年第1期38卷 1-4页

作者：吴元欣朱圣东武汉工程大学化工与制药学院绿色化工过程省部共建教育部重点实验室湖北省新型反应器和绿色工艺重点实验室湖北武汉430073

在分析传统石油化学工业对人类现代文明所起的作用及存在的问题的基础上,从化石资源的合理开发与利用、可再生资源的开发与利用和资源的再利用3个层面,对如何应对后石油经济时代石油化学工业的可持续发展所面临的挑战进行了探讨,并对未... 详细信息

在分析传统石油化学工业对人类现代文明所起的作用及存在的问题的基础上,从化石资源的合理开发与利用、可再生资源的开发与利用和资源的再利用3个层面,对如何应对后石油经济时代石油化学工业的可持续发展所面临的挑战进行了探讨,并对未来石油化学工业的发展方向提出了建议。通过现代生物技术和化工技术的有机结合,提高资源的利用效率和增加与环境的相容性是未来石油化学工业的发展方向。

关键词：后石油经济时代石油化学工业可持续发展化石资源可再生资源资源再利用

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Research on rapid and harmless treatment technology for rural domestic refuse and its utilization as manure

Research on rapid and harmless treatment technology for rura...

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International Symposium on Ecological Remediation of environmental Pollution and Bioenergy Exploitation

作者： Jianrong Fu Institute of environment resource Soil and Fertilizer Zhejiang Academy of Agricultural Science Hangzhou 310021 china

A systematic survey was conducted at Liandu district in Lishui city as a typical region to analyze the component and physicochemical properties of rural domestic refuse,as well as to evaluate the potential of its utilization as *** key technology involved rapid disposal of domestic waste by a combination of acidic and alkaline method,and the speciation changes of heavy metal in organic matters in this process was also ***,a combination of field and pot experiment was also applied to study the effect of organic fertilizer produced by the treatment of rural domestic refuse on crop yield and quality,soil fertility and heavy metal accumulation so as to provide some scientific basis for the utilization of rural domestic refuse as resource of manure.

关键词： rapid and harmless treatment technology rural domestic refuse

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