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Παρουσίαση του Δρ Αναστάση Χρίστου, Λειτουργού Γεωργικών Ερευνών, που έγινε στο Πανεπιστήμιο Κύπρου στα πλαίσια του Nireas Speaker Series, με θέμα "Ο ρόλος της επαναχρησιμοποίησης του επεξεργασμένου νερού και της βιολογικής διέγερσης των φυτών στον μετριασμό των επιπτώσεων της κλιματικής αλλαγής"

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  • 1. , 2014

2. I. ( , , ) II. ( ) III. ( - Nireas) IV. , , (Priming) V. H2S ( - ) 3. (~0,6 C 100 , 2.5 C 2050) ( , , , ..) , (Independent, 2000) () ( ) () , , , , , , , 4. (, , , , ..) & (, , , ..) 5. (, ) (HSPs, LEA, COR) (, ) (SOD, POD) , -, , (.. Ca2+, ROS), , Ca2+, (.. CBF/DREB, HSF) , : Wang et al. (2003), Planta 218: 1-14 6. Molassiotis & Fotopoulos (2011), Plant Signal Behav 6:210-214 ROS/RNS 7. - , . , , , . : , , , , , . , ( , , ) . 8. : . . . , . . : . / . . . ( , , ..). . 9. Clover irrigation-Pyrgos Clover irrigation Agios Georgios Football field in Pareklissia Olive orchard Agios Georgios 10. Beans in greenhouse -Pyrgos Amenities- Limassol Citrus orchards-Potamia 11. : , , , , , , .. 12. , 13. Surveyed Area Province - Location MWTP Treatment process & Disinfection Cultivated crops and period of WW irrigation Soil layers sampled depths (cm) Agricultural produce sampled 1 Nicosia Tertiary (MBR) - UV Ryegrass, Orange trees (10 years) 0-25 Ryegrass (stems and leaves) orange fruits 2 Limassol Tertiary (SSF) - Chlorination Ryegrass, Orange trees (10 years) 0-25 Ryegrass (stems and leaves) orange fruits 3 Larnaka Tertiary (SSF) - Chlorination Clover (0.5, 4 and 8 years) 0-25 26-50 51-75 76-100 Clover (stems and leaves) MWTP, MunicipalWastewater Treatment Plant; WW, wastewater; MBR, Membrane Bioreactor; UV, Ultraviolet disinfection; SSF, Slow Sand Filtration Surveyed sites, MWTPs treatment process and soils and agricultural produce samples description. 14. Physico-chemical characteristics and microbial load of the treated effluent from the three MWTPs applied for irrigation and the maximum permissible levels (MPLs) set by the Cyprus guideline for wastewater reuse. MWTP in Area 1 MWTP in Area 2 MWTP in Area 3 Parameter Mean Value1 Mean Value1 Mean Value1 pH 7.91 8.12 7.70 6.5-8.5 EC (mS cm-1 ) 1.77 1.69 3.60 2.20 BOD5 (mg O2 L -1 ) 3.58 3.83 3.00 10.00 COD (mg O2 L -1 ) 21.38 20.83 43.00 70.00 SS (mg L-1 ) 7.00 7.00 12.00 10.00 E. coli (cfu 100 ml -1 ) 1.20 0.00 0.00 5.00 Total N (mg L-1 ) 6.25 7.38 18.86 15.00 Total P (mg L -1 ) 0.92 1.40 3.16 10.00 Cl - (mg L -1 ) 314.00 209.00 897.00 300.00 Fe (mg L-1 ) 0.09 0.12 0.10 Zn (mg L -1 ) 0.02 0.04 0.02 0.10 Mn (mg L -1 ) 0.03 0.01 0.03 0.10 Ni (mg L -1 ) 0.02 0.02 0.02 0.20 Cu (mg L -1 ) b.l.q. 0.03 b.l.q. 3 0.10 Co (mg L-1 ) 0.02 0.03 0.02 0.10 1 Mean values are the average of 10 samples taken during 2010 and 2011. 2 As set by the Cyprus Guidline for wastewater reuse for irrigation. 3 Below limit of quantification. Maximum Permissible Level2 15. Geochemical properties of the top 0-25 cm soil layer of sampled ryegrass fields and clover orchards irrigated with wastewater for 10 years, along with their contiguous reference control fields, in areas 1 and 2. Parameters Control Ryegrass Field Control Citrus Orchard Control Ryegrass Field Control Citrus Orchard pH 8.130.02 8.160.02 8.160.03 8.230.05 8.380.12 8.290.04 8.420.04 8.480.04 EC(mS cm-1 ) 0.860.06 1.560.04 * 1.160.11 1.660.03 * 1.160.1 2.140.05 * 1.160.03 1.500.11 * CaCO3 (%) 20.322.21 20.980.98 5.350.56 5.981.14 11.331.67 12.830.88 23.522.05 23.651.13 Cl- (mgkg-1 ) 118.038.24 170.2510.14 * 204.2310.72 206.7319.42 188.553.18 445.739.89 * 184.786.73 305.1353.29 * Fe (gr kg-1 ) 32.010.42 37.290.73 * 46.691.12 47.740.55 24.881.10 26.060.31 * 27.520.50 27.220.69 Mn(mgkg-1 ) 838.8811.89 1226.7321.62 * 1227.0619.69 1189.7439.62 2001.9463.71 2048.363.68 892.5918.55 926.9720.56 Co (mgkg -1 ) 14.290.42 18.860.58 * 26.350.22 25.700.26 15.840.12 22.160.56 * 20.791.60 21.570.43 Cu(mgkg-1 ) 64.892.49 90.855.23 * 107.203.41 104.402.13 60.793.99 61.712.13 69.914.46 69.211.27 Zn(mgkg-1 ) 127.8112.61 120.224.57 114.954.31 157.0113.11 * 75.294.74 84.490.61 65.143.44 70.411.04 Ni(mgkg-1 ) 65.410.38 61.140.38 43.520.29 44.250.45 48.071.45 61.380.78 * 74.232.62 82.311.79 Data are means SEoffive replications. * indicates the comtroland wastewater irrigationpair values that are significantlydifferent accordingto Duncans multiple range test (P < 0.05). Area 1 Area 2 16. Soil pH, electrical conductivity and Cl- content in 1 m profile depth in clover fields in area 3, as affected by wastewater irrigation (0.5, 4, 8 years) 5 10 15 -100 -80 -60 -40 -20 0 0.5 years 4 years 8 years EC (mS cm-1 ) 1000 2000 3000 4000 -100 -80 -60 -40 -20 0 0.5 years 4 years 8 years Cl- content (mg L-1 ) 8.0 8.5 9.0 9.5 -100 -80 -60 -40 -20 0 8 years 0.5 years 4 years pH Soildepth(cm) A B C * * * * * * * * * * ** * * * * ** ** * *** * * ** * * 17. Chemical (CaCO3 and Fe content) and heavy metal content analysis of the sampled clover fields at area 3 irrigated with wastewater for 0.5, 4 and 8 years, along with their contiguous control fields, in 4 soil profile layers reaching 1 m depth. 0.5 40.002.12 36.503.34 35.410.90 33.631.60 126.045.17 134.227.85 42.365.31 42.301.76 1138.3226.74 1211.4848.49 90.723.60 94.380.80 21.320.33 20.830.45 4 50.002.44 50.002.03 36.560.22 37.601.20 174.704.64 177.876.84 42.580.25 43.901.28 1322.867.70 1225.9238.62 84.012.17 91.302.58 26.170.10 25.170.66 8 21.501.78 21.001.23 16.030.66 20.711.33 * 67.036.80 62.336.36 52.422.34 46.850.21 774.3827.35 849.5145.27 38.361.48 51.083.57 * 19.130.30 20.340.15 * 0.5 40.002.03 37.502.34 27.101.72 32.874.01 121.356.90 121.140.34 36.253.07 40.321.15 1163.1144.57 1178.6251.72 88.175.47 83.756.11 20.190.61 21.050.60 4 50.000.89 50.002.45 32.510.48 39.172.30 * 121.515.95 125.905.03 41.830.68 41.692.55 1085.5217.03 1129.2052.93 79.840.72 82.092.61 23.990.41 25.691.80 8 27.003.03 24.001.11 19.710.75 17.811.14 71.916.24 79.692.06 49.632.60 51.602.30 871.3020.01 836.3332.56 51.292.29 43.023.07 18.220.53 20.370.28 * 0.5 41.002.67 36.003.11 30.792.50 33.682.52 101.547.57 104.116.05 29.962.34 30.823.80 1099.8787.07 1124.0081.26 78.723.29 87.013.48 20.850.58 22.051.16 4 50.001.88 50.001.98 33.310.63 31.291.26 117.121.05 123.407.50 41.921.46 42.322.13 1074.9614.94 990.549.97 * 76.391.49 77.033.71 25.780.89 25.520.66 8 30.003.01 29.501.34 16.890.48 21.370.87 * 57.770.85 66.291.31 * 59.754.05 50.480.68 987.8445.30 930.0138.20 43.842.19 49.382.06 21.171.10 20.941.06 0.5 36.002.11 39.002.45 33.302.58 27.451.49 75.852.44 77.363.41 26.600.88 29.032.85 1008.3744.15 875.0234.44 84.527.00 69.573.21 22.080.38 18.621.02 * 4 50.003.24 48.004.11 34.681.10 34.391.08 125.929.17 124.488.92 32.050.84 32.591.14 1059.1031.03 1050.3233.18 86.142.43 78.432.98 23.530.54 26.040.38 * 8 36.504.21 30.003.78 18.511.50 22.610.05 68.740.98 72.181.34 50.011.59 51.680.52 961.0415.86 963.064.29 45.973.92 54.710.65 19.670.63 20.070.27 DataaremeansSEoffivereplications. *indicatesthecontrolandwastewaterirrigationpairvaluesthataresignificantlydifferentaccordingtoDuncansmultiplerangetest(P7.5 7.5 6.0 4.5 3.0 1.5 0 -1.5 -3.0 -4.5 -6.0 -7.5 7.5 7.5 6.0 4.5 3.0 1.5 0 -1.5 -3.0 -4.5 -6.0 -7.5