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应用生态学报 ›› 1999, Vol. 10 ›› Issue (2): 159-162.

• 研究论文 • 上一篇    下一篇

造林整地对栗钙土钙积层化学性质干扰的研究

陈立新1, 赵雨森1, 张岩1, 任启玉2, 王丽和3   

  1. 1. 东北林业大学森林资源与环境学院, 哈尔滨 150040;
    2. 内蒙古巴林右旗黄花治沙林场, 巴林右旗 024000;
    3. 内蒙古扎兰屯林校, 扎兰屯 162650
  • 收稿日期:1998-10-28 修回日期:1998-12-08 出版日期:1999-03-25 发布日期:1999-03-25
  • 通讯作者: 陈立新,女,34岁,硕士,讲师,主要研究森林土壤营养管理,发表论文7篇.E-mail:wzqsilv@public.hr.hl.cn E-mail:wzqsilv@public.hr.hl.cn
  • 基金资助:

    国家“九五”科技攻关项目(96-007-010-403).

Disturbance of site preparation on chemical properties of calcic horizon in chestnut soil

Chen Lixin1, Zhao Yuseng1, Zhang Yan1   

  1. Northeast Forestry University, Harbin 150040
  • Received:1998-10-28 Revised:1998-12-08 Online:1999-03-25 Published:1999-03-25

摘要: 采用对比分析方法,对不同年龄杨树人工林地整地与未整地土壤化学性质进行了研究。结果表明,经犁沟整地破除钙积层后,土壤化学性质约在107年恢复到整地前状态,随后土壤养分迅速减小,以至低于整地前水平。20年后随着林地有机物质的积累,养分开始回升,最终林地养分高于整地前水平。土壤养分恢复的先后顺序为有机质、CaCO3、有效N、全P、全N、速效K和有效P,恢复周期分别为6、7、75、9、10、17、17.5年。钙积层部位恢复周期为11.4年,恢复先后顺序为有效N、全P、有机质、速效K、CaCO3、全N和有效P,恢复周期为55、6、6、85、95、10、34年。

关键词: 栗钙土, 钙积层, 化学性质, 干扰, 恢复周期

Abstract: This study comparatively analyzed the soil chemical properties of different aged poplar (Populus spp.) plantations with and without site preparation. After its calcic horizon was broken by ditch ploughing, the soil took about 10.7 yr for its chemical properties recovering to the state of no site preparation. After that, soil nutrients decreased rapidly, and even below to the level of no site preparation. Twenty years later, with the accumulation of organic matter,soil nutrients increased again, and ultimately higher than before site preparation. The successive order of soil nutrient recovery was organic matter, CaCO3, available N, total P, total N, rapidly available K, and available P, with the recovery cycle of 6,7,7.5,9,10,17 and 17.5 yr, respectively; while the recovery cycle of soil nutrients in calcic horizon was 11.4 yr, and the successive order was available N, total P, organic matter, rapidly available K, CaCO3,total N, and available P, with the recovery cycle of 5.5, 6, 6,8.5, 9.5, 10 and 34 yr, respectively.

Key words: Chestnut soil, Calcic horizon, Chemical properties, Disturbance, Recovery cycle