caa a22 4500 477110576 CHVBK 20180405111607.0 cr unu---uuuuu 170330e19960101xx s 000 0 eng 10.1007/BF00011591 doi (NATIONALLICENCE)springer-10.1007/BF00011591 Influence of salinity on the biological and biochemical activity of a calciorthird soil [Elektronische Daten] [C. García, T. Hernández] Irrigation of agricultural land with saline waters can lead to soil degradation. In this paper the effect of the irrigation with water containing different concentrations of NaCl or Na2SO4 (0.1 M, 0.3 M, 0.6 M, 0.8 M, 1 M, and 1.3 M) on the biological and biochemical characteristics of a calciorthid soil was studied. In general, the increase of scil electrical conductivity caused by the addition of saline solutions had a negative effect on soil's biological and biochemical fertility, (that related directly with the soil's microbiological activity) this effect being more noticeable with NaCl than with Na2SO4. Soil microbial respiration was inhibited as much as 57% by a 1.3 M solution of NaCl. The activity of hydrolases such as protease, β-glucosidase and phosphatase was more negatively affected by salinity than that of oxidoreductases (dehydrogenase and catalase). Soil NO3 - content decreased with salinity while NH4 + content increased. Carbohydrate content, which is closely connected with soil aggregate stability, was also negatively affected by salinity. Kluwer Academic Publishers, 1996 carbohydrates nationallicence electrical conductivity nationallicence hydrolase activity nationallicence microbial respiration nationallicence oxidoreductase activity nationallicence García C. Department of Soil and Water Conservation and Waste Management, CEBAS, (CSIC), P.O. Box 4195, Murcia, Spain aut Hernández T. Department of Soil and Water Conservation and Waste Management, CEBAS, (CSIC), P.O. Box 4195, Murcia, Spain aut Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl 178/2(1996-01-01), 255-263 0032-079X 178:2<255 1996 178 11104 https://doi.org/10.1007/BF00011591 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00011591 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- García C. Department of Soil and Water Conservation and Waste Management, CEBAS, (CSIC), P.O. Box 4195, Murcia, Spain aut NATIONALLICENCE 700 1- Hernández T. Department of Soil and Water Conservation and Waste Management, CEBAS, (CSIC), P.O. Box 4195, Murcia, Spain aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl// 178/2(1996-01-01), 255-263 0032-079X 178:2<255 1996 178 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer