%0 Journal Article
%T Simulation of Effect of Irrigation with Reclaimed Water on Soil Water-Salt Movement by ENVIRO-GRO Model<br>模型模拟再生水灌溉对土壤水盐运动的影响
%A L&#
%A Si-dan
%A CHEN Wei-ping
%A WANG Mei-e
%A <br>吕斯丹
%A 陈卫平
%A 王美娥
%J 环境科学
%D 2012
%I 
%X As the conflict between water supply and demand, wastewater reuse has become an important measure, which can relieve the water shortage in Beijing. In order to promote safe irrigation with reclaimed water and prevent soil salinisation, the dynamic transport of salts in urban soils of Beijing, a city of water shortage, under irrigation of reclaimed water was simulated by ENVIRO-GRO model in this research. The accumulation trends of soil salinity were predicted. Simultaneously, it investigated the effects of different irrigation practices on soil water-salt movement and salt accumulation. Results indicated that annual averages of soil salinity (ECe) increased 29.5%, 97.2%, 197.8% respectively, with the higher irrigation, normal irrigation, and low irrigation under equilibrium conditions. Irrigation frequency had little effect on soil salt-water movement, and soil salt accumulation was in a downward trend with low frequency of irrigation. Under equilibrium conditions, annual averages of ECe increased 23.7%, 97.2%, 208.5% respectively, with irrigation water salinity (ECw) 0.6, 1.2, 2.4 dS·m-1. Soil salinity increased slightly with ECw=0.6 dS·m-1, while soil salinization did not appear. Totally, the growth of Blue grass was not influenced by soil salinity under equilibrium conditions with the regular irrigation in Beijing, but mild soil salinization appeared.
%K reclaimed water
%K irrigation
%K urban green space
%K soil salinity
%K ENVIRO-GRO model<br>再生水
%K 灌溉
%K 城市绿地
%K 土壤盐分
%K ENVIRO-GRO模型
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=F695696643286BF4F45D2520D73D75EE&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=59906B3B2830C2C5&sid=C6439E27363E4F65&eid=B62D01E703D61D8B&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=31