Rural wastewater irrigation and nitrogen removal by the paddy wetland system in the Tai Lake region of China |
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| Authors: | Song Li Hua Li Xingqiang Liang Yingxu Chen Zhihong Cao Zhihong Xu |
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| Institution: | (1) Institute of Environmental Science and Technology, Zhejiang University, Hangzhou, 310029, China;(2) Forest Soil and Environment Joint Laboratories of ZJFC-ISSAS, Zhejiang, Lin’an, 311300, China;(3) Center for Forestry and Horticultural Research, Griffith University, Nathan Campus, Brisbane, Queensland, 4111, Australia; |
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| Abstract: | Background, aim, and scope A large area of water eutrophication in the Tai Lake region of China was associated with nitrogen (N) and phosphorus (P) pollution,
mainly due to the discharge of untreated rural wastewater (RW) into the surface water (SW) near villages of this region. A
field experiment was conducted, using irrigation of RW plus urea fertilization under equal nitrogen (N) rate, namely, black
water (BW), domestic wastewater (DW), gray water (GW), SW, and SW without any N application as a control (CK), to elucidate
N removal by the paddy wetland system during the rice growing season of 2007. |
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