| 五指山耕地土壤养分现状调查与评价 |
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| 引用本文： | 王 华,冯焕德,王荣香,王汀忠,王登峰.五指山耕地土壤养分现状调查与评价[J].热带作物学报,2017,37(1):21-25. |
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| 作者姓名： | 王 华 冯焕德 王荣香 王汀忠 王登峰 |
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| 作者单位： | 1 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;1 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;1 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;2 海南省土壤肥料站 海南海口 570203;1 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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| 摘 要： | 为了明确海南山区耕地土壤养分空间分布特征，为热带山区耕地土壤养分管理提供思路。以海南五指山市耕地为研究对象，采用野外调查、采样和室内分析相结合的方法，阐述土壤养分现状，探讨其土壤养分分布规律。结果表明：五指山耕地土壤总体呈酸性，其pH值为5.1；土壤有机质、有效磷、速效钾和中量元素(钙、镁、硫)含量均为中等或偏下水平，土壤有效铜和有效锌含量较为丰富。五指山耕地土壤酸化和养分含量分布不均主要与气候、母质分布和施肥不平衡有关。
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| 关 键 词： | 热区 耕地 土壤养分 山区 |
The Investigation and Evaluation of Soil Nutrients of Arable Land in Wuzhishan City |
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| Institution: | 1 Tropical Crops Genetic Resources Institute, CATAS, Danzhou, Hainan 571737;1 Tropical Crops Genetic Resources Institute, CATAS, Danzhou, Hainan 571737;1 Tropical Crops Genetic Resources Institute, CATAS, Danzhou, Hainan 571737;2 Hainan Soil and Fertilizer Station, Haikou, Hainan 570203;1 Tropical Crops Genetic Resources Institute, CATAS, Danzhou, Hainan 571737 |
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| Abstract: | In order to understand the spatial distribution of arable land in Hainan mountainous areas to provide references for soil nutrients management of tropical areas the distribution and situation of soil nutrients of arable land in Wuzhishan City were investigated through field survey, soil sampling and lab analysis. The results indicated that the arable land soil was acid with pH 5.1 and contained a medium or relatively lower level of soil organic matters, available P and K, and Ca, Mg and S and a relatively higher level of available Cu and Zn. The soil acidification and variation of soil nutrients in the arable land of Wuzhishan were related to the climate factors, distribution of soil parent materials and the imbalanced application of chemical fertilizer. |
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| Keywords: | tropical area arable land soil nutrients mountainous area |
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