| 单词 | saprobic system |
| 释义 | > as lemmassaprobic system a. Characterized by the prevalence of decaying organic material; spec. = polysaprobic adj. at poly- comb. form 1; saprobic system, a system by which a body of polluted water is divided into zones characterized by the presence of certain organisms that are treated as indicators of the degree of pollution. ΘΚΠ the world > life > biology > balance of nature > environment or habitat > [adjective] > conditions of waterish1579 supralittoral1839 trophic1902 thermostabile1908 oligotrophic1911 saprobic1913 mosaic1919 mesic1926 xeric1926 trophogenic1930 tropholytic1931 saprobiotic1940 oligotropic1948 saprotrophic1948 mixohaline1959 thermoneutral1961 eutrophicated1967 the world > life > biology > balance of nature > environment or habitat > [noun] > conditions of optimum1848 thermoneutrality1881 normothermia1898 comfort zone1923 oligotrophy1928 saprobity1956 saprobic system1967 saprobicity1971 1913 Bull. Illinois State Lab. Nat. Hist. 9 x. 498 We will distinguish..three stages of impurity, by use of the following terms applicable both to the waters themselves and to the characteristic organisms, given here in the order of a diminishing impurity, namely: (1) septic or saprobic [etc.]. 1925 Bull. Illinois Nat. Hist. Surv. 15 440 The septic or grossly polluted portions of a stream... The organisms of this zone are those which have been termed by Kolkwitz and Marsson..polysaprobic and by Forbes and Richardson..septic or saprobic. 1967 A. F. Bartsch in Olson & Burgess Pollution & Marine Ecol. vi. 294 Various North American biologists have expressed doubt as to the applicability of the saprobic system to coastal and estuarine environments. 1971 R. J. Benoit in L. L. Ciaccio Water & Water Pollution Handbk. I. iv. 255 The general relationship between the saprobic zones and the zones shown by oxygen sag curves has been illustrated. 1975 D. F. Westlake in B. A. Whitton River Ecol. iv. 126 In general macrophytes are not good indicators for use in the saprobic system of classifying rivers. < as lemmas |
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