| 黄土区土壤微量元素含量分布与微肥效应 |
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| 引用本文： | 余存祖,彭琳,刘耀宏,戴鸣钧,彭祥林.黄土区土壤微量元素含量分布与微肥效应[J].土壤学报,1991,28(3):317-326. |
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| 作者姓名： | 余存祖 彭琳 刘耀宏 戴鸣钧 彭祥林 |
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| 作者单位： | 中国科学院西北水土保持研究所, 712100;中国科学院西北水土保持研究所, 712100;中国科学院西北水土保持研究所, 712100;中国科学院西北水土保持研究所, 712100;中国科学院西北水土保持研究所, 712100 |
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| 摘 要： | 黄土区土壤微量元素含量分布受母质、地形、水热条件、土壤类型等成土过程与成土条件的深刻影响,呈现出一定的规律性。与全国土壤平均含量比较,本区土壤锌、锰较低,钼很低,硼接近,铜略高。土壤有效态锌、硼、钼、锰属低水平,存在着大面积缺乏锌、硼、钼的土壤,近一半土壤面积缺锰。近年来,锌、硼、锰肥已在生产中大面积应用,获得了显著的经济效益。
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| 关 键 词： | 黄土区 土壤 微量元素 微肥 |
CONTENT AND DISTRIBUTION OF TRACE ELEMENTS AND FERTILIZER EFFICIENCY IN SOILS OF LOESSAL REGION |
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| Yu Cunzu,Peng Lin,Liu Yaohong,Dai Minjun and Peng Xianglin.CONTENT AND DISTRIBUTION OF TRACE ELEMENTS AND FERTILIZER EFFICIENCY IN SOILS OF LOESSAL REGION[J].Acta Pedologica Sinica,1991,28(3):317-326. |
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| Authors: | Yu Cunzu Peng Lin Liu Yaohong Dai Minjun and Peng Xianglin |
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| Affiliation: | Northwestern Institute of soil and water Conservation, Academia Sinica, 712100;Northwestern Institute of soil and water Conservation, Academia Sinica, 712100;Northwestern Institute of soil and water Conservation, Academia Sinica, 712100;Northwestern Institute of soil and water Conservation, Academia Sinica, 712100;Northwestern Institute of soil and water Conservation, Academia Sinica, 712100 |
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| Abstract: | Loessal soils are one of maln soil types in the northern part of China. They are widely distributed over Shanxi, shaanxi, Nei Monggol, Gansu, Ningxia, Qinghai and Henan provinces, with a calcareous reaction and pH of 7.5-8.5 and low content of organic matter. The yeild of crops in the soil regions is low because of drought and erosion.In comparison with the average contents of soils in the whole China, the contents of the total Zn and Mn of the soils in the loessal region are lower, Mo is very low, B is medium and Cu is slightly higher. The contents and distribution of trace elements in the soils have some regularities, which are affected by parent material, climate, topography and soil properties. The contents of Zn, Mn, Cu and Fe in soils increase with the increasing of soil clay particles from the nouthwest to the southeast. The content of B in the soils derived from river alluvium is higher than that in the soils derived from loess. And the content of Mo in the soils derived from loessal materials is the highest. |
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