title: Temporal and spatial variation of water level in urbanizing plain river network region.
abstract: As one of the most developed regions in China, the plain of East China is undergoing gradually increased flooding under the obvious urbanization process. This paper mainly analyses the trend of water level time series in the region during the past decades, and assesses the temporal and spatial variation of water level and indicators of hydrological alteration. The results show that there is a trend of increasing water level. Bigger slope and higher significant level can be observed in monthly minimum than in monthly maximum water level, in peri-urban than in urban areas. Meanwhile, it is observed that the mean monthly minimum and maximum water level increased in both urban and peri-urban regions, while decreased coefficients of variation (Cv) in urban and increased Cv in peri-urban regions were calculated. Most indicators of hydrologic alteration in urban stations are concentrated to the range of variability approach target, while most indicators are discrete in peri-urban stations. And the degree of hydrologic alteration is higher in peri-urban than in urban regions.
authors.affiliation: College of Territorial Resources and Tourism, Anhui Normal University, Wuhu, Anhui 241000, China E-mail: guanglaixu@163.com; Climate Change and Water Resource Center of Jianghuai Basin, Anhui Normal University, Wuhu 241000, China.
authors.forename: Guanglai
authors.initials: G
authors.lastname: Xu
authors.affiliation: School of Geographic and Oceanic Science, Nanjing University, Jiangsu 210093, China.
authors.forename: Youpeng
authors.initials: Y
authors.lastname: Xu
authors.affiliation: School of Resources, Environment and Earth Sciences, Yunnan University, Kunming, Yunnan 650091, China.
authors.forename: Xian
authors.initials: X
authors.lastname: Luo
authors.affiliation: Department of Geosciences, University of Oslo, Oslo N-0316, Norway.
authors.forename: Hongliang
authors.initials: H
authors.lastname: Xu
authors.affiliation: College of Territorial Resources and Tourism, Anhui Normal University, Wuhu, Anhui 241000, China E-mail: guanglaixu@163.com.
authors.forename: Xiaohua
authors.initials: X
authors.lastname: Xu
authors.affiliation: College of Territorial Resources and Tourism, Anhui Normal University, Wuhu, Anhui 241000, China E-mail: guanglaixu@163.com; Climate Change and Water Resource Center of Jianghuai Basin, Anhui Normal University, Wuhu 241000, China.
authors.forename: Chunsheng
authors.initials: C
authors.lastname: Hu
mesh_terms: D002681:China; D002947:Cities; D045483:Rivers; D013997:Time Factors; D014506:Urban Renewal