| 海南西北部地区耕地土壤锌分布特征 |
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| 引用本文： | 王登峰,魏志远,韩妙杰,漆智平.海南西北部地区耕地土壤锌分布特征[J].广西农业科学,2013(3):447-451. |
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| 作者姓名： | 王登峰 魏志远 韩妙杰 漆智平 |
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| 作者单位： | 中国热带农业科学院热带作物品种资源研究所,海南儋州571737 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项项目（1630032012019）;海南省自然科学基金项目（312054） |
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| 摘 要： | 【目的】分析海南西北部地区（儋州、白沙、昌江和东方）的土壤锌含量分布特征，识别区内土壤锌缺乏区域，为研究区内的农业规划提供参考。【方法】采用野外采样和室内分析相结合的方法，借助于地统计学和GIS空间分析手段，阐明海南西北部农田土壤锌含量在空间和不同土壤发生层（耕作层、犁底层、潴育层和母质层）的分布特征。【结果】区内耕作层土壤锌含量普遍偏低，最高含量为85.94 mg/kg；各发生层土壤锌含量的空间分布不均，锌含量超过50.00 mg/kg的土壤主要分布在儋州北部火山堆积物母质发育地区、昌江西北部和东方西部地区；母质层土壤锌含量最高，为30.30 mg/kg，其次为潴育层，耕作层和犁底层的土壤锌含量相近。【结论】海南省西北部耕作层土壤锌含量除与母质分布有关外，还受土壤酸碱性分布及农田化肥投入的影响。
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| 关 键 词： | 耕地 土壤 锌 剖面分布 海南 西北部 |
Distribution characteristics of zinc in arable land soil of northwestern Hainan |
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| WANG Deng-feng,WEI Zhi-yuan,HAN Miao-jie,QI Zhi-ping.Distribution characteristics of zinc in arable land soil of northwestern Hainan[J].Guangxi Agricultural Sciences,2013(3):447-451. |
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| Authors: | WANG Deng-feng WEI Zhi-yuan HAN Miao-jie QI Zhi-ping |
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| Institution: | (Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan 571737, China) |
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| Abstract: | 【Objective】Zinc distribution in the arable land soil of northwestern Hainan （Danzhou, Baisha, Changjiang, Dongfang） was assayed in order to identify the area with the highest content of zinc and provide references for agricultural planning in Hainan. 【Method】On basis of field sampling and indoor analysis （geo-statistics and spatial analysis）, the distribution of zinc in term of spatial and soil profile layers（inc. plow horizon,subsurface layer,waterloggogenic horizon and parent material horizon） was illustrated. 【Result】The results indicated that the content of soil zinc was generally low with the highest content of 85.94 mg/kg only. The spatial distribution varied significantly in all soil horizons. Soils with zinc exceeding 50 mg/kg were mainly distributed in pyroclastic area,northwest Changjiang,and west Dongfang. The content of zinc in parent material horizon was the highest,being 30.30 mg/kg, followed by the waterloggogenic horizon. The content of zinc in soils of plow layer was similar to that of subsurface layer. 【Conclusion】The content of soil zinc was generally low in northwestern Hainan. The distribution of soil zinc was subject to parent material distribution,the soil pH and chemical fertilizers applied to arable land. |
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| Keywords: | cultivated land soil zinc profile distribution Hainan northwest |
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