| 吉林省黑土某些微量元素环境地球化学特征 |
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| 引用本文： | 陆继龙,周永昶,周云轩.吉林省黑土某些微量元素环境地球化学特征[J].土壤通报,2002,33(5):365-368. |
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| 作者姓名： | 陆继龙 周永昶 周云轩 |
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| 作者单位： | 1. 吉林大学,吉林,长春,130026
2. 吉林大学,吉林,长春,130026;中国科学院长春地理所,吉林,长春,130021 |
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| 基金项目： | 中国科学院百人计划资助项目 |
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| 摘 要： | 根据吉林省第二次土壤普查资料 ,对黑土中微量元素B、Cu、Fe、Mn、Mo和Zn的全量、有效态含量、它们在土壤剖面中的迁移分布等环境地球化学特征及其影响因素进行了研究 ,得出如下结论 :①吉林省黑土B、Mn、Mo、Zn的全量缺乏 ,Cu、Fe的全量略低 ;②黑土B、Cu、Zn的有效态含量缺乏 ,其中Zn严重缺乏 ;③黑土剖面中 ,B、Cu、Fe、Mn、Mo、Zn等微量元素全量与有效态含量分布相似 ,均以淋溶层最低 ,表层和淀积层较高 (Mo的全量除外 )。微量元素有效态含量剖面分布中淀积层层次较深 ,表层富集程度稍强 ;④黑土中B、Fe、Mn、Mo、Zn的有效态含量与土壤有机质含量呈显著的正相关 ;B、Mo的有效态含量与 pH值呈显著正相关 ,而Cu、Fe、Mn、Zn的有效态含量则与pH值呈负相关 ;黑土B、Cu、Fe、Mn、Mo、Zn有效态含量与其全量均达到显著相关水平。根据吉林省黑土中微量元素全量和有效态含量分布的特点 ,需施用微量元素肥料 ,增加黑土中微量元素的含量 ,促进该地区农业的可持续发展
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| 关 键 词： | 黑土 微量元素 环境地球化学 吉林省 |
| 文章编号： | 0564-3945(2002)05-0365-04 |
| 修稿时间： | 2001年8月8日 |
Environmental Geochemical Characteristics of Some Microelements in the Black Soil of Jilin province |
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| LU Ji long,ZHOU Yong chang,ZHOU Yun xuan.Environmental Geochemical Characteristics of Some Microelements in the Black Soil of Jilin province[J].Chinese Journal of Soil Science,2002,33(5):365-368. |
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| Authors: | LU Ji long ZHOU Yong chang ZHOU Yun xuan |
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| Institution: | LU Ji long 1 ZHOU Yong chang 1 ZHOU Yun xuan 1,2 |
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| Abstract: | According to the data collected in the second soil survey of Jilin Province, the environmental geochemical characteristics of total contents in microelement, available contents and their distributions in soil profiles and affecting factors are studied. The main results are as following: (1) B, Mn, Mo and Zn are deficient in total contents in black soil,and Cu and Fe are low. (2)The contents of available B, Cu and Zn are deficient and Zn is severely deficient. (3)The distribution patterns of total contents and available contents of microelements are similar, both having their lowest contents in the celuvium. Compared with the total contents of microelements, the level of illuvium is deeper and the enrichment degree of topsoil is higher. (4)The contents of available B, Cu, Fe, Mn, Mo and Zn have significant positive correlation with the organic matter content in the soil. The contents of available B and Mo have significant positive correlation with pH, while the contents of available Cu, Fe, Mn and Zn have significant negative correlation with pH. The correlation between the contents of B, Cu, Fe, Mn, Mo and Zn and their total contents are proved to be significant. Thus, the trace-element fertilizer should be applied to the cropland in order to increase the contents of microelements in the black soil to promote the sustainable development of regional agriculture. |
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| Keywords: | Black soil Microelement Environmental geochemisry Jilin Province |
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