caa a22 4500 475783387 CHVBK 20180406123651.0 cr unu---uuuuu 170329e20000201xx s 000 0 eng 10.1023/A:1008126232188 doi (NATIONALLICENCE)springer-10.1023/A:1008126232188 Estimation of soil algal biomass in salinized irrigation land: a comparison of culture dilution and chlorophyll a extraction methods [Elektronische Daten] [Shigeo Tsujimura, Hiroyuki Nakahara, Norio Ishida] Two representative methods for quantitative estimation of soil algae, the culture dilution method and chlorophyll a extraction, were compared using soil samples collected from irrigation land in the flood plain of the River Ili, Kazakhstan, where the distribution of soil algae had been studied in the previous year. The estimate by the culture dilution method was almost the same as in the previous year, except for one site, which was enclosed by shrubs of sakusaul, Haloxylon aphyllum (Minkw.) Iljin. The important role of wind in transport of airborne algal cells was pointed out. There was a significant correlation (p<0.001) between the logarithm of the number of colonies by the culture dilution method andthe logarithm of the concentration of chlorophyll a, when data from all samples were analyzed. However, no significant correlation was observed with the data of cropland sites alone. Furthermore, the seasonal variations of both values at each site did not necessarily agree with each other. One reason for the inconsistency may have been the over estimation of chlorophyll a caused by inclusion of litter from vascular plants. Other reasons may relate to differences between the methodologies. The density of soil algae estimated by culture dilution reflects the algal biomass in a certain previous period of time. Therefore, it is suggested that the method is suitable for spatial, but not for seasonal studies. Kluwer Academic Publishers, 2000 airborne algal cell nationallicence blue-green algae nationallicence chlorophyll a extraction nationallicence culture dilution method nationallicence green algae nationallicence irrigation land nationallicence quantitative estimation nationallicence salinization nationallicence soil algae nationallicence xanthophytes nationallicence Tsujimura Shigeo Lake Biwa Research Institute, 1-10 Uchidehama, 520-0806, Otsu, Japan aut Nakahara Hiroyuki Graduate School of Agriculture, Kyoto University, 606-8502, Kyoto, Japan aut Ishida Norio Graduate School of the Asian African Area Studies, Kyoto University, 606-8501, Kyoto, Japan aut Journal of Applied Phycology Kluwer Academic Publishers 12/1(2000-02-01), 1-8 0921-8971 12:1<1 2000 12 10811 https://doi.org/10.1023/A:1008126232188 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1008126232188 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tsujimura Shigeo Lake Biwa Research Institute, 1-10 Uchidehama, 520-0806, Otsu, Japan aut NATIONALLICENCE 700 1- Nakahara Hiroyuki Graduate School of Agriculture, Kyoto University, 606-8502, Kyoto, Japan aut NATIONALLICENCE 700 1- Ishida Norio Graduate School of the Asian African Area Studies, Kyoto University, 606-8501, Kyoto, Japan aut NATIONALLICENCE 773 0- Journal of Applied Phycology Kluwer Academic Publishers 12/1(2000-02-01), 1-8 0921-8971 12:1<1 2000 12 10811 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer