| 海拔高度和植茶年限对茶园土壤肥力和酸度的影响 |
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| 作者姓名： | 颜明娟 林诚 陈子聪 吴一群 |
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| 作者单位： | 福建省农业科学院土壤肥料研究所,福建福州,350013;福建省农业科学院土壤肥料研究所,福建福州,350013;福建省农业科学院土壤肥料研究所,福建福州,350013;福建省农业科学院土壤肥料研究所,福建福州,350013 |
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| 基金项目： | 福建省属公益类科研院所基本科研专项;福建现代农业产业(茶叶)技术体系 |
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| 摘 要： | 为探讨不同海拔高度和植茶年限对茶园土壤肥力和酸化状况的影响,通过采集闽南和闽北茶叶主产区11个代表性茶园土壤及其对照自然土壤,进行实验室测定分析。结果表明:海拔高度和植茶年限对土壤养分肥力有重要的影响;植茶土壤明显提高了土壤有机质和速效氮磷钾含量,尤其是有效磷和速效钾的含量平均是对照土壤的5.2倍和1.5倍。植茶土壤pH为4.36±0.34,比对照土壤pH值下降了8.8%;随着海拔高度增加,土壤pH下降程度减缓,但随着植茶年限增加,加剧土壤pH下降幅度。茶园土壤交换性铝含量与pH值呈现显著水平的线性负相关;随着植茶年限增加,土壤交换性铝含量呈现线性增加,促进了土壤酸化和降低了土壤肥力。研究结果为制定具有较好针对性的茶园土壤培肥技术提供参考依据。
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| 关 键 词： | 茶园土壤 海拔 植茶年限 酸化 肥力 |
Soil Fertility and Acidification Affected by Altitude and Age of Tea Plantation |
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| Authors: | YAN Ming-juan LIN Cheng CHEN Zi-cong WU Yi-qun |
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| Institution: | (Soil and Fertilizer Research Institute,Fujian Academy of Agricultural Sciences,Fujian,Fuzhou 350013,China) |
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| Abstract: | Effects of altitude and ages tea plantation on the fertility and acidification of the soil were investigated.Soil samples from 22 representative plantations,as well as reference,in the major tea producing areas of southern and northern province Fujian were collected and analyzed.Both the altitude,where a plantation was located,and the ages tea plantation,which had taken place at a specific plantation significantly affected the fertility of the soil.The contents of organic matters,available nitrogen,phosphorus and potassium in soil significantly increased with elevation or age.Especially,on average,the available phosphorus was 5.2 times,and potassium 1.5 times,higher than that of reference soils.The average soil pH was 4.36±0.34,which was 8.8%lower than that of reference soils.Which increased with the altitude of location,but the rate of decline lessened at high elevation.With tea plantation ages increasing the soil acidification significantly worsened.The exchangeable aluminum in soil significantly increased with lowered pH or the increased planting ages that further hastened the acidification and fertility depletion of the soil. |
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| Keywords: | tea plantation soil altitude years of tea planting acidification fertility |
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