湖北省土壤微量元素含量分布研究
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STUDIES ON CONTENT AND DISTRIBUTION OF MICRONUT RIENTS IN SOILS OF HUBEI PROVINCE
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    摘要:

    本项研究对湖北省14种主要成土母质及其发育的土壤,按土属布点,共取表层土壤样3346个,剖面样305个和岩石样40个,分别测定锌、铜、锰、硼、铁含量取得数据21,967项,查明全省土壤锌、铜、锰、硼、铁含量,全量分别平均为83、27、596、80、35000ppm,有效量分别平均为0.65、1.11、29.7、0.33、37.1ppm,低于缺乏临界值的耕地共2460万亩;研究得出本省近代河流冲积物发育的土壤大多缺锌;酸性结晶岩发育的土壤缺硼;褐色粘土发育的土壤缺锰,红、黄壤缺铜,石灰土缺铁等。综上,编绘出土壤有效性锌、硼、铜、锰、铁缺素分布图,指导粮、棉、油、果等作物的微肥应用,常年施用面积800余万亩,效益显著。

    Abstract:

    In this investigation, 3346 samples of surface soils, 305 samples of soil profile and 40 rocks were studied, 21967 analytical data of tots and available contents of Zn,Cu,Mn,Fe, B etc.showed that the average content of Zn,Cu,Mn,Fe in the rocks of Hubei were 60 ppm, 24 ppm,446 ppm and 1.8% respectively. The content of Zn,Cu,Mn,Fe in igneous rocks were higher than these in sedimentary rocks. The former were 61.7 ppm, 24.1 ppm, 382.8 ppm and 1.5% respectively, the later were 43.7 ppm, 20.9ppm,.335.9 ppm and 1.25% respectively. In igneous rocks: base rock > neutral rock > acidic rock, in sedimentary rocks: shale > sandy rock > limes-tone. The total contents of Zn,Cu,Fe and B in Hubei soil were comparatively high, the mean value were 83 ppm, 26.8 ppm, 596 ppm, 3.5% and 83 ppm respectively. The mean available contents were 0.65 ppm, 1.11 ppm, 29.7 ppm, 37.1 ppm and 0.33 ppm respectively. The contents of these elements in soil samples below critical value i.e. B 71% Zn 49%, Mn 17%, Cu 8%, Fe 7%. The distribution of micronutrients in different soil profile is quite different. In red earth Zn,Cu,Mn,Fe, B were cumulated in A horizon, but in yellow and yellow-brown earths, they were illuviated in B horizon. In paddy soil, Cu,Mn,Fe were leached and illuviated in B or C horizon, however Zn and B cumulated slightly in A horizon. The activity ratio of Zn and B in Hubei soils were all below 1%.

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谢振翅,马朝红,胡定金,邓小玉,李家书.湖北省土壤微量元素含量分布研究[J].土壤学报,1990,27(4):411-419. Xie Zhenchi, Ma Chaohong, Hu Dingjin, Den Xiaoyu, Li Jiashu. STUDIES ON CONTENT AND DISTRIBUTION OF MICRONUT RIENTS IN SOILS OF HUBEI PROVINCE[J]. Acta Pedologica Sinica,1990,27(4):411-419.

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  • 在线发布日期: 2013-02-25
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