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Spatiotemporal Evolution of Lakes Under Rapid Urbanization: a Case Study in Wuhan, China
water Article Spatiotemporal Evolution of Lakes under Rapid Urbanization: A Case Study in Wuhan, China Chao Wen 1, Qingming Zhan 1,* , De Zhan 2, Huang Zhao 2 and Chen Yang 3 1 School of Urban Design, Wuhan University, Wuhan 430072, China; [email protected] 2 China Construction Third Bureau Green Industry Investment Co., Ltd., Wuhan 430072, China; [email protected] (D.Z.); [email protected] (H.Z.) 3 College of Urban and Environmental Sciences, Peking University, Beijing 100871, China; [email protected] * Correspondence: [email protected]; Tel.: +86-139-956-686-39 Abstract: The impact of urbanization on lakes in the urban context has aroused continuous attention from the public. However, the long-term evolution of lakes in a certain megacity and the heterogeneity of the spatial relationship between related influencing factors and lake changes are rarely discussed. The evolution of 58 lakes in Wuhan, China from 1990 to 2019 was analyzed from three aspects of lake area, lake landscape, and lakefront ecology, respectively. The Multi-Scale Geographic Weighted Regression model (MGWR) was then used to analyze the impact of related influencing factors on lake area change. The investigation found that the total area of 58 lakes decreased by 15.3%. A worsening trend was found regarding lake landscape with the five landscape indexes of lakes dropping; in contrast, lakefront ecology saw a gradual recovery with variations in the remote sensing ecological index (RSEI) in the lakefront area. The MGWR regression results showed that, on the whole, the increase in Gross Domestic Product (GDP), RSEI in the lakefront area, precipitation, and humidity Citation: Wen, C.; Zhan, Q.; Zhan, contributed to lake restoration. -
Water-Sediment Partition of Polycyclic Aromatic Hydrocarbons (Pahs) in Nansi Lake
E3S Web of Conferences 38, 02003 (2018) https://doi.org/10.1051/e3sconf/20183802003 ICEMEE 2018 Water-Sediment Partition of Polycyclic Aromatic Hydrocarbons (PAHs) in Nansi Lake Guizhai Zhang, Youjiang Diao* School of Environment Science and Engineering, Shandong Agriculture and Engineering University, Jinan, Shandong, 251100, P. R. China Abstract: Based on field data of polycyclic aromatic hydrocarbons (PAHs) in water and sediment in Nansi Lake. The concentrations and the partitioning characteristic of PAHs in the water and sediment were studied. The lgKd of high molecular weight PAHs were higher than the low molecular weight PAHs. The most of PAHs Kd values were negligible correlated with TOC, soluble salt, clay and pH of the sediment in Nansi Lake. to study the partitioning of PAHs in different aquatic environments, for the different partitioning behaviors of 1 Introduction PAHs in different study areas. Polycyclic aromatic hydrocarbons (PAHs), containing Nansi Lake is the largest lake in Shandong province, two or more benzene rings, are widely distributed in the the northern area of China, including Nanyang Lake, environment, for heir hydrophobicity, strong persistence Dushan Lake, Zhaoyang Lake and Weishan Lake. It is an imporant buffer lake of the South-to-North Water and long-range transportation potential [1]. PAHs usually exist in the form of free, DOM binding, SPM binding Diversion Project (east route). Its water quality relates to and sediment combination in the aquatic environment. the whole water quality conditions of South-to-North Investigation of the distribution of PAHs in an aquatic Water Diversion Project (east route) [3]. Some studies [1, environment is great significance for strategy designing 4, 5] assessed the PAHs residues in water, sediment and of pollution control. -
Ecological Risk Assessment of Typical Plateau Lakes
E3S Web of Conferences 267, 01028 (2021) https://doi.org/10.1051/e3sconf/202126701028 ICESCE 2021 Ecological Risk Assessment of Typical Plateau Lakes Yuyadong1.2*, Yankun2 1.School of Ecology and Environmental Science Yunnan University, China 2.The Ecological and Environmental Monitoring Station of DEEY in Kunming, China Abstract. Plateau lakes have significant ecological value. With economic development, lake pollution and ecological degradation have become increasingly prominent. There are many ecological risk assessment methods. This article combines four different ecological risk assessment methods including single-factor pollution index, geological accumulation index method, potential risk index method, and pollution load index method to analyze the heavy metal pollution in Yangzong seabed mud as comprehensively as possible. It shows that the results obtained by different ecological risk assessment methods are slightly different. The overall trends of the geological pollution index and the single-factor pollution index are similar. In terms of time, except for the two elements of mercury and cadmium, the contents of other heavy metals in 2019 are lower than in 2018, indicating that heavy metal pollution has decreased in 2019; from the perspective of spatial distribution, In 2018, the overall pollution level on the south side of Yangzonghai was higher than that in the central and northern regions of Yangzonghai . On the whole, whether it is the potential risk index or the appropriate pollution load index, the pollution level on the south side of Yangzonghai is higher than that in the central and northern areas of Yangzonghai, and the northern area has the least pollution. ecosystems is relatively reduced, which makes the economic development of plateau lake basins face severe 1 Introduction challenges. -
Prominent City Lakes Fail Water Safety Test
Homepage > News > China > Prominent city lakes fail water safety test 2009-11-16 11:24 BJT Three lakes in Beijing were seriously polluted in October, the Beijing municipal water resources bureau website said on Nov 12. Water quality in Chaoyang Park Lake, Honglingjin Lake and Lianhuachi Lake was revealed to be class V1, meaning the water is completely unusable. The lakes do not form part of the city's drinking water supply. "The pollution is mainly from domestic sewage," said Ma Jun, director of a green NGO- Institute of the Public and Environmental Affairs in Beijing which has released a China water pollution map annually since 2006. He said the water in Chaoyang Park Lake and Honglingjin Lake comes from the Liangma River. Ma said the river picks up domestic sewage before it reaches the lakes. Rain drainage systems and sewers also increase the number of pollutants. "This kind of pollution is called 'non-point source pollution'," he explained. Pollutants come from non-specific places and enter rivers and lakes with rainwater. Visitors to parks in east Beijing's business and expat-populated districts said the water pollution in Chaoyang Park is apparent. "I saw waste floating on Chaoyang Park lake and the water is almost black," Yang Xing, a 25-year-old PR company employee, said about her visit in August. Despite the pollution, hiring a boat remains a popular activity on the lake. "People don't seem to care about the water quality," Shi Yu, a postgraduate student and frequent visitor to Chaoyang Park Lake, told METRO yesterday. -
Effects of Climate Variability on Evaporation in Dongping Lake, China, During 2003–2010
Hindawi Publishing Corporation Advances in Meteorology Volume 2013, Article ID 789290, 11 pages http://dx.doi.org/10.1155/2013/789290 Research Article Effects of Climate Variability on Evaporation in Dongping Lake, China, during 2003–2010 Yuan Rong,1,2 Hongbo Su,1 Renhua Zhang,1 and Zheng Duan3 1 Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China 2 University of Chinese Academy of Sciences, Beijing 100049, China 3 Delft University of Technology, Stevinweg 1, 2628 CN Delft, The Netherlands Correspondence should be addressed to Hongbo Su; [email protected] Received 24 May 2013; Accepted 27 August 2013 Academic Editor: Xiangzheng Deng Copyright © 2013 Yuan Rong et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Based on two long-term, hourly (10:30–11:30 and 13:10–14:10) meteorological over-lake observations and data from Shenxian meteorological station, nearby Dongping Lake, the Penman-Monteith equation and reference evaporation ratio algorithm were used to calculate lake evaporation in Dongping Lake, China, from 2003 to 2010. The variation trend of evaporation of Dongping Lake was analyzed, and the influences that caused changes in lake evaporation were also discussed. The results show that (1) the total annual evaporation in Dongping Lake increased -
Hangzhou: West Lake and More
HANGZHOU: WEST LAKE AND MORE World Similar BASIC INFORMATION Rank To Dallas-Fort Worth, Urban Area Population (2007)* 4,200,000 60 Alexandria, Milan Boston, St. Petersburg, Projection (2025) 5,020,000 80 Barcelona Urban Land Area: Square Miles 250 Sapporo, Copenhagen, 150 Urban Land Area: Square Kilometers 650 Lima, Grand Rapids Density: Per Square Mile 16,800 Ankara, Osaka-Kobe-Kyoto, 300 Density: Per Square Kilometer 6,500 Novosibersk *Continuously built up area (Urban agglomeration) Land area & density rankings among the approximately 750 urban areas with 500,000+ population. Data from Demographia World Urban Areas data. See:1 Demographia World Urban Areas Population & Density Demographia World Urban Areas: 2025 & 2030 Population Projections 9 December 2008 LOCATION AND SETTING Hangzhou is the capital of Zhejiang Province, in the southern part of the Yangtze Delta region. Hangzhou is approximately 400 airline miles (625 kilometers) southwest of Shanghai and is the largest urban area in Zhejiang (Slide 2). The province itself is named for the Zhe River (now called the Qiantang River), which runs through the southern part of the Hangzhou urban area. The historic core is located approximately 100 miles to the southwest of Shanghai. Most of the Hangzhou urban area is flat, but there are intermittent hills. There are more significant hills to the west of the urban area, especially beyond West Lake (aerial photograph, Slide 3). 1 http://www.demographia.com/db-worldua.pdf and http://www.demographia.com/db-worldua2015.pdf. Urban Tours by Rental Car: Hangzhou 1 Hangzhou’s most famous feature and tourist attraction is West Lake, which is immediately to the west of the historic center. -
Water Resource Risk Assessment Based on Non-Point Source Pollution
water Article Water Resource Risk Assessment Based on Non-Point Source Pollution Xiaodie Yuan and Zhang Jun * School of Architecture and Planning, Yunnan University, Kunming 650500, China; [email protected] * Correspondence: [email protected] Abstract: As one of the most important causes of water quality deterioration, NPS (non-point source) pollution has become an urgent environmental and livelihood issue. To date, there have been only a few studies focusing on NPS pollution conforming to the estimation, and the pollution sources are mainly concentrated in nitrogen and phosphorus nutrients. Unlike studies that only consider the intensity of nitrogen and phosphorus loads, the NPS pollution risk for the China’s Fuxian Lake Basin was evaluated in this study by using IECM (Improve Export Coefficient Model) and RUSLE (Revised Universal Soil Loss Equation) models to estimate nitrogen and phosphorus loads and soil loss and by using a multi-factor NPS pollution risk assessment index established on the basis of the data mentioned above. First, the results showed that the load intensity of nitrogen and phosphorus pollution in the Fuxian Lake Basin is low, so agricultural production and life are important sources of pollution. Second, the soil loss degree of erosion in the Fuxian Lake is mild, so topography is one of the most important factors affecting soil erosion. Third, the risk of NPS pollution in the Fuxian Lake Basin is at a medium level and its spatial distribution characteristics are similar to the intensity characteristics of nitrogen and phosphorus loss. Nitrogen, phosphorus, sediment, and mean concentrations are important factors affecting NPS pollution. -
Dams and Development in China
BRYAN TILT DAMS AND The Moral Economy DEVELOPMENT of Water and Power IN CHINA DAMS AND DEVELOPMENT CHINA IN CONTEMPORARY ASIA IN THE WORLD CONTEMPORARY ASIA IN THE WORLD DAVID C. KANG AND VICTOR D. CHA, EDITORS This series aims to address a gap in the public-policy and scholarly discussion of Asia. It seeks to promote books and studies that are on the cutting edge of their respective disciplines or in the promotion of multidisciplinary or interdisciplinary research but that are also accessible to a wider readership. The editors seek to showcase the best scholarly and public-policy arguments on Asia from any field, including politics, his- tory, economics, and cultural studies. Beyond the Final Score: The Politics of Sport in Asia, Victor D. Cha, 2008 The Power of the Internet in China: Citizen Activism Online, Guobin Yang, 2009 China and India: Prospects for Peace, Jonathan Holslag, 2010 India, Pakistan, and the Bomb: Debating Nuclear Stability in South Asia, Šumit Ganguly and S. Paul Kapur, 2010 Living with the Dragon: How the American Public Views the Rise of China, Benjamin I. Page and Tao Xie, 2010 East Asia Before the West: Five Centuries of Trade and Tribute, David C. Kang, 2010 Harmony and War: Confucian Culture and Chinese Power Politics, Yuan-Kang Wang, 2011 Strong Society, Smart State: The Rise of Public Opinion in China’s Japan Policy, James Reilly, 2012 Asia’s Space Race: National Motivations, Regional Rivalries, and International Risks, James Clay Moltz, 2012 Never Forget National Humiliation: Historical Memory in Chinese Politics and Foreign Relations, Zheng Wang, 2012 Green Innovation in China: China’s Wind Power Industry and the Global Transition to a Low-Carbon Economy, Joanna I. -
Secrets to Su Shi's Happiness Under Any Circumstances
International Journal of Applied Linguistics & English Literature E-ISSN: 2200-3452 & P-ISSN: 2200-3592 www.ijalel.aiac.org.au Secrets to Su Shi’s Happiness under Any Circumstances: Transcending and a Positive Perspective Chengcheng Liu1, Zhongwen Liu2* 1School of Liberal Arts, Renmin University of China, 59 Zhongguancun Street, Beijing, 100872, China 2Liaoning Police College, 260 Yingping Road, Dalian, 116036, China Corresponding Author: Zhongwen Liu, E-mail: [email protected] ARTICLE INFO ABSTRACT Article history What have endeared Su Shi to countless followers in nearly a thousand years all over the world Received: December 06, 2018 lie not only in his outstanding achievements in literary and arts, but also in his optimism in Accepted: February 21, 2019 adversity. This paper probes into the insight secrets of why he could be happy most of the time to Published: March 31, 2019 enlighten people nowadays to lead a happy, easy and peaceful life. Firstly, transcending constantly Volume: 8 Issue: 2 through keeping adjusting his expectations in accordance with the everchanging circumstances: Advance access: February 2019 transcending conventions to realize his people-oriented ambition when he was a young official; transcending material limitations when he was exiled for the first time to Huangzhou; transcending fame and power when he was back to court with great power; transcending himself Conflicts of interest: None when he was exiled for the second time to Huizhou and finally transcending everything when Funding: None he was banished to the most remote Danzhou on Hainan Island; and secondly, seeing every circumstance in a positive light: overlooking the negative and magnifying the positive; indulging himself in the beauty of the nature; enjoying the present moment and being optimistic about the future without thinking. -
Supplement of a Systematic Examination of the Relationships Between CDOM and DOC in Inland Waters in China
Supplement of Hydrol. Earth Syst. Sci., 21, 5127–5141, 2017 https://doi.org/10.5194/hess-21-5127-2017-supplement © Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License. Supplement of A systematic examination of the relationships between CDOM and DOC in inland waters in China Kaishan Song et al. Correspondence to: Kaishan Song ([email protected]) The copyright of individual parts of the supplement might differ from the CC BY 3.0 License. Figure S1. Sampling location at three rivers for tracing the temporal variation of CDOM and DOC. The average widths at sampling stations are about 1020 m, 206m and 152 m for the Songhua River, Hunjiang River and Yalu River, respectively. Table S1 the sampling information for fresh and saline water lakes, the location information shows the central positions of the lakes. Res. is the abbreviation for reservoir; N, numbers of samples collected; Lat., latitude; Long., longitude; A, area; L, maximum length in kilometer; W, maximum width in kilometer. Water body type Sampling date N Lat. Long. A(km2) L (km) W (km) Fresh water lake Shitoukou Res. 2009.08.28 10 43.9319 125.7472 59 17 6 Songhua Lake 2015.04.29 8 43.6146 126.9492 185 55 6 Erlong Lake 2011.06.24 6 43.1785 124.8264 98 29 8 Xinlicheng Res. 2011.06.13 7 43.6300 125.3400 43 22 6 Yueliang Lake 2011.09.01 6 45.7250 123.8667 116 15 15 Nierji Res. 2015.09.16 8 48.6073 124.5693 436 83 26 Shankou Res. -
Copyrighted Material
INDEX Aodayixike Qingzhensi Baisha, 683–684 Abacus Museum (Linhai), (Ordaisnki Mosque; Baishui Tai (White Water 507 Kashgar), 334 Terraces), 692–693 Abakh Hoja Mosque (Xiang- Aolinpike Gongyuan (Olym- Baita (Chowan), 775 fei Mu; Kashgar), 333 pic Park; Beijing), 133–134 Bai Ta (White Dagoba) Abercrombie & Kent, 70 Apricot Altar (Xing Tan; Beijing, 134 Academic Travel Abroad, 67 Qufu), 380 Yangzhou, 414 Access America, 51 Aqua Spirit (Hong Kong), 601 Baiyang Gou (White Poplar Accommodations, 75–77 Arch Angel Antiques (Hong Gully), 325 best, 10–11 Kong), 596 Baiyun Guan (White Cloud Acrobatics Architecture, 27–29 Temple; Beijing), 132 Beijing, 144–145 Area and country codes, 806 Bama, 10, 632–638 Guilin, 622 The arts, 25–27 Bama Chang Shou Bo Wu Shanghai, 478 ATMs (automated teller Guan (Longevity Museum), Adventure and Wellness machines), 60, 74 634 Trips, 68 Bamboo Museum and Adventure Center, 70 Gardens (Anji), 491 AIDS, 63 ack Lakes, The (Shicha Hai; Bamboo Temple (Qiongzhu Air pollution, 31 B Beijing), 91 Si; Kunming), 658 Air travel, 51–54 accommodations, 106–108 Bangchui Dao (Dalian), 190 Aitiga’er Qingzhen Si (Idkah bars, 147 Banpo Bowuguan (Banpo Mosque; Kashgar), 333 restaurants, 117–120 Neolithic Village; Xi’an), Ali (Shiquan He), 331 walking tour, 137–140 279 Alien Travel Permit (ATP), 780 Ba Da Guan (Eight Passes; Baoding Shan (Dazu), 727, Altitude sickness, 63, 761 Qingdao), 389 728 Amchog (A’muquhu), 297 Bagua Ting (Pavilion of the Baofeng Hu (Baofeng Lake), American Express, emergency Eight Trigrams; Chengdu), 754 check -
Projects: Five Themes
Projects: Five Themes The projects featured in these Arriving at the full set of 25 projects for the book involved a pages were selected for Design long, collaborative process. We began by asking colleagues with Nature Now because each from around the world to nominate projects that they thought best exemplified and extended McHarg’s design in some way narrows the gap philosophy and method. The nomination process resulted between theory and practice and in a list of over 80 projects, and after much discussion, we opens up a wider horizon for the agreed on the final 25. The projects are organized into five themes: Big Wilds, future of landscape architecture. Rising Tides, Fresh Waters, Toxic Lands, and Urban Futures [each of which is represented in this special issue of Land Lines]. Although these themes cover a lot of territory, it will be obvious to readers that the collection does not represent all the types of work the professions of planning and landscape architecture do. We have included projects that engage large complex sites and pressing socioecological issues, and that variously translate into reality what could be referred to as a McHargian ethos of stewardship. It must be said, however, that some projects show the limitations of the discipline’s ability to effect change at the scale that is needed; the projects improve the social and ecological function locally, but may also be part and parcel of development patterns and infrastructural projects that are environmentally degrading at other scales. We wish the full collection comprised a greater diversity of projects from a greater diversity of places.