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辽宁沿渤海地区水环境承载力 被引量:2
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作者 李川 王恩德 《辽宁工程技术大学学报(自然科学版)》 CAS 北大核心 2011年第4期549-552,共4页
为了明晰辽宁沿渤海地区的水环境承载力与区域重点产业发展之间是否协调,采用改进的指标体系评价法对辽宁沿渤海地区的水环境承载力进行了计算,包括跨区域边界河流、境内河流和区域外调水的承载能力。假定所有跨境河流、本地河流源头水... 为了明晰辽宁沿渤海地区的水环境承载力与区域重点产业发展之间是否协调,采用改进的指标体系评价法对辽宁沿渤海地区的水环境承载力进行了计算,包括跨区域边界河流、境内河流和区域外调水的承载能力。假定所有跨境河流、本地河流源头水的水质背景值满足地表水环境质量标准III类水要求,经计算辽宁沿渤海地区地表水环境的多年平均COD承载力为(8.4~10.9)×104 t,多年平均NH3-N承载力为(0.43~0.68)×104 t。水环境承载力的空间差异主要是水资源自身分布的空间差异所致。 展开更多
关键词 水环境 承载力 指标体系评价法 沿渤海 重点产业
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辽宁沿渤海地区水资源利用效率初评 被引量:1
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作者 李川 王恩德 《环境科学与管理》 CAS 2012年第1期165-167,共3页
总结了水资源利用效率的概念和计算方法,梳理了辽宁沿渤海地区的重点产业,采用狭义的水资源利用效率计算方法,以2007年辽宁沿渤海地区用水量为基础,分别计算了辽宁沿渤海5市的万元GDP用水量、万元工业增加值用水量、万元建筑业增加值用... 总结了水资源利用效率的概念和计算方法,梳理了辽宁沿渤海地区的重点产业,采用狭义的水资源利用效率计算方法,以2007年辽宁沿渤海地区用水量为基础,分别计算了辽宁沿渤海5市的万元GDP用水量、万元工业增加值用水量、万元建筑业增加值用水量、万元三产增加值用水量、人均用水量、城镇居民生活用水量、农村居民用水量。结果表明,盘锦人均用水量和万元GDP用水量在辽宁省沿渤海5市中均为最高,其主要原因是盘锦农业用水多,农业产出的GDP相对少。 展开更多
关键词 水资源 利用效率 评价方法 沿渤海
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Short-and long-term sediment transport in western Bohai Bay and coastal areas
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作者 冯桓 张卫国 +5 位作者 贾丽 Michael P.WEINSTEIN 张秋丰 袁德奎 陶建华 俞立中 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2010年第3期583-592,共10页
Sediment cores (-40-100 cm) were collected at 12 locations in the western Bohai Bay, the Haihe River estuary, the Yongding River estuary and the Tianjin Harbor, China, during 24-26 July 2007, and analyzed for ^7Be a... Sediment cores (-40-100 cm) were collected at 12 locations in the western Bohai Bay, the Haihe River estuary, the Yongding River estuary and the Tianjin Harbor, China, during 24-26 July 2007, and analyzed for ^7Be and ^210pb activities. Due to localized hydrodynamic patterns and frequent disturbance from dredging activities, steady-state sedimentation features were not observed in this study. As demonstrated in the VBe and ^210pb profiles, the temporal and spatial variations of these radionuclides support a non-steady state depositional environment in the study area. By comparing ^7Be and ^210pb inventories in the sediments with those of the atmospheric source, we found that: 1) sediments dredged from the Tianjin Harbor or eroded from nearby estuarine and coastal areas are retained in the western Bohai Bay for relatively short intervals (several months), as reflected in the relatively high ^7Be inventories in the western Bohai Bay; 2) over the long-term (years to decades), ^210Pb inventories in the sediments imply that there is a net on-shore transport of sediments, and the sediments are mass-balanced in the entire study area. Overall, our results suggest that the sediments are retained in the estuaries and the western Bohai Bay despite local variability in sediment dynamics and disturbance due to human activities. 展开更多
关键词 Bohai Bay ESTUARY SEDIMENTATION sediment transport RADIONUCLIDE
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Observed characteristics of the North Yellow Sea water masses in summer
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作者 鲍献文 李娜 吴德星 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2010年第1期160-170,共11页
In this paper, we characterize the North Yellow Sea (NYS) water masses in summer by analyzing temperature and salinity data surveyed in 2006. The Liaonan Coastal Water is characterized by low salinity westward and s... In this paper, we characterize the North Yellow Sea (NYS) water masses in summer by analyzing temperature and salinity data surveyed in 2006. The Liaonan Coastal Water is characterized by low salinity westward and southward flow paths. The westward path flows parallel to land, turns to the south, then to the southeast adjacent to the mouth of the Lushun River, where it mixes with other coastal water directly to the southwest. It becomes the main source of low salinity water in the deep water area west of 123°E. The high-salinity Lubei Coastal Water is the remnant of the winter Lubei Coastal Water, which is located mostly in a small area between Yantai and Weihai, and does not originate in the Bohai Sea Coastal Water. The two NYS zones demarcated at 123°E have distinctly different temperature and salinity characteristics. There are two high-salinity centers east of 123°E, whereas there is low-salinity water to the west whose temperature and salinity structures are complex, composed of the coastal water south of Chengshantou, the Liaonan Coastal Water and the Bohai Sea Water. 展开更多
关键词 Lubei Coastal Water Liaonan Coastal Water Yellow Sea Coastal Water (YSCW) Bohai SeaWater Yellow Sea Water upwelling near Chengshantou
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Study of Panjin Wetlands Along Bohai Coast(Ⅱ):Ecological Water Requirement of Shuangtaizi Estuarine Wetland
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作者 WANG Tieliang ZHOU Linfei ZHAO Bo YANG Peiqi 《Journal of Ocean University of China》 SCIE CAS 2009年第2期197-202,共6页
Shuangtaizi estuarine wetland along the Bohai Sea coast,the biggest bulrush wetland in the world,has been listed in 'The Record of Important International Wetland Conservation District'. Taking the year of 2 0... Shuangtaizi estuarine wetland along the Bohai Sea coast,the biggest bulrush wetland in the world,has been listed in 'The Record of Important International Wetland Conservation District'. Taking the year of 2 000 as an example,the minimum,the most suitable and the maximum ecological water requirement of Shuangtaizi estuarine wetland are calculated in this paper based on both ecological theory and Geological Information System technology. In addition,the remote sensing technique is adopted in the data acquisition process. Moreover,the total water requirement and the unit area water requirement for different wetland types are obtained. The result is very important for water resources planning,ecological conservation and regional agriculture structure adjustment in Shuangtaizi. Meanwhile,this study can serve as a useful example for calculating the ecological water requirement in other similar estuarine wetlands. 展开更多
关键词 WETLAND ecological water requirement 3S technology
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Effects of tide-surge interactions on storm surges along the coast of the Bohai Sea, Yellow Sea, and East China Sea 被引量:2
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作者 XU JunLi ZHANG YuHong +2 位作者 CAO AnZhou LIU Qiang LV XianQing 《Science China Earth Sciences》 SCIE EI CAS CSCD 2016年第6期1308-1316,共9页
A two-dimensional coupled tide-surge model was used to investigate the effects of tide-surge interactions on storm surges along the coast of the Bohai Sea, Yellow Sea, and East China Sea. In order to estimate the impa... A two-dimensional coupled tide-surge model was used to investigate the effects of tide-surge interactions on storm surges along the coast of the Bohai Sea, Yellow Sea, and East China Sea. In order to estimate the impacts of tide-surge interactions on storm surge elevations, Typhoon 7203 was assumed to arrive at 12 different times, with all other conditions remaining constant. This allowed simulation of tide and total water levels for 12 separate cases. Numerical simulation results for Yingkou, Huludao, Shijiusuo, and Lianyungang tidal stations were analyzed. Model results showed wide variations in storm surge elevations across the 12 cases. The largest difference between 12 extreme storm surge elevation values was of up to 58 cm and occurred at Yingkou tidal station. The results indicate that the effects of tide-surge interactions on storm surge elevations are very significant. It is therefore essential that these are taken into account when predicting storm surge elevations. 展开更多
关键词 Storm surges Astronomical tides Tide-surge interactions Typhoon 7203 Coupled tide-surge model
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