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中国农学通报 ›› 2016, Vol. 32 ›› Issue (25): 5-9.doi: 10.11924/j.issn.1000-6850.casb16060042

所属专题: 园艺

• 林学 园艺 园林 • 上一篇    下一篇

洞庭湖区杨树人工林不同龄林土壤养分特征研究

唐 洁,汤玉喜,杨 艳,李永进,吴 敏   

  1. 湖南省林业科学院,湖南省林业科学院,湖南省林业科学院,湖南省林业科学院,湖南省林业科学院
  • 收稿日期:2016-06-08 修回日期:2016-08-05 接受日期:2016-07-15 出版日期:2016-08-29 发布日期:2016-08-29
  • 通讯作者: 唐 洁
  • 基金资助:
    国家重点研发计划课题“美洲黑杨工业资源材高效培育技术研究”(2016YFD0600402);湖南省林业科学院青年科研创新基金项目“洞庭湖区不干扰强度杨树人工林土壤呼吸特征研究”(2013LQJ02)。

Soil nutrient characteristics of poplar plantation in different ageof the forest in Dongting Lake area

汤玉喜,杨 艳,李永进 and 吴 敏   

  • Received:2016-06-08 Revised:2016-08-05 Accepted:2016-07-15 Online:2016-08-29 Published:2016-08-29

摘要: 为揭示洞庭湖区杨树人工林土壤肥力特征,对不同龄林杨树林土壤养分进行了研究。结果表明:不同龄林土壤pH无显著差异,呈碱性;除有机质含量较高外,全氮、全磷、全钾、速效氮、速效钾含量4年生林最低,与2年生林、8年生林有显著性差异;不同生长阶段杨树林土壤速效磷含量普遍较低;2年生林土壤中钙、镁和硫含量最高;土壤肥力由高到低依次为2年生林>8年生林>4年生林,施肥重点应该放在中龄林阶段。

关键词: 小白菜, 小白菜, 氯氰菊酯, 农药残留, 动态

Abstract: In order to research the soil fertility characteristics of Populus plantation in the Dongting Lake, the soil nutrient of different age forest of Populus plantation were tested. The results showed that there is no significant difference of pH value in different age plantation soil, and showed alkaline. Exception of the high content of organic matter, the others of total N, total P, total K, available N, available P of 4 year old Populus plantation is the lowest, and it has significant difference with 2 year old and 8 year old plantation. The available P content is generally low in different growth stage of soil of Populus plantation. The content of Ca, Mg and S is highest of soil in 2 year old Populus plantation. The soil fertility from high to low in order is 2 year old plantation > 8 year old plantation > 4 year old plantation , and the focus of fertilization should be placed in the middle age Populus plantation.