Effects of reclaimed water irrigation on mineral elements content of turf

摘要

Effects of reclaimed water irrigation on mineral elements of turf were evaluated by conducting plot experiment and field survey from Beijing Beixiaohe Wastewater Treatment Plant and Beijing Gaobeidian Wastewater Treatment Plant. Results showed that comparing with Tap Water irrigation, turf leaf heavy metals, Ca2+, Cl− and Na+ content are apparently higher after long-termed common tertiary water and secondary effluent irrigation, but there is no negative effect on turf growth. There is no significant impact on turf leaf N, P content after both long-term and short-term irrigation by reclaimed water. In the case of the tolerance and absorption of soil salt, Festuca arundinacea.L.has more significant advantage than Poa pratensis.L.. But Poa pratensis.L is good for tolerant and absorbing of heavy-metal.