不同时期典型塿土剖面肥力特征与耕层肥力指数比较分析
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家科技支撑计划项目(2006BAD05B10,2006BAD09B10)、中国科学院方向性项目(KSCX1-YW-N-15-04)和中国科学院知识创新工程重大项目(KSCX-YW-09-07)资助


Comparison of fertility characteristics of typical cumulic cinnamon soils profiles and soil fertility index of topsoil in different years
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    利用历史典型剖面土样及资料,采用原位采样及相同测定方法研究30年来不同时期塿土剖面的肥力特征及演变。结果表明:30年来塿土耕层的综合肥力水平在不断提高,耕层土壤中全氮含量增加40.7%,由四级水平提高到三级水平;碱解氮含量增加56.1%,由五级水平提高到四级水平;全磷含量增加44.5%,由三级水平提高到一级水平;速效磷含量增加204.0%,由四级水平提高到二级水平;速效钾含量累积57.6 mg/kg,由三级水平提高到二级水平;有机质含量由12.42 g/kg增加到 18.98 g/kg,但还一直处于四级水平。由此,提出该区土壤培肥的对策是控磷、控钾,增氮、增施有机肥。

    Abstract:

    In order to know the fertility characteristics of typical cumulic cinnamon soil profiles in different years, the soil nutrients and the temporal variation in recent 30 years were studied through the situ sampling method and historical materials. The results showed that the fertility of cumulic cinnamon soil has been improved since the 1980s. The nutrient accumulation of soil total nitrogen (TN) increased by 40.7% from the fourth class to the third class. Available nitrogen (AN) increased by 56.1% from the fifth class to the fourth class. Total phosphorus (TP) increased by 44.5% from the third class to the first class. Available phosphorus (AP) increased by 204.0% from the fourth class to the second class. Soil available potassium (AK) content accumulated 57.6 mg/kg from the third class to the second class. Soil organic matter (OM) content increased from 12.42 g/kg to 18.98 g/kg, but still insufficient (the fourth class). In order to keep the balance of soil fertility, OM content should be increased and nitrogen input should be enhanced while phosphorus and potassium should be controlled.

    参考文献
    相似文献
    引证文献
引用本文

摄晓燕,谢永生,王 辉,张应龙.不同时期典型塿土剖面肥力特征与耕层肥力指数比较分析[J].土壤,2011,43(6):891-896. SHE Xiao-yan, XIE Yong-sheng, WANG Hui, ZHANG Ying-long. Comparison of fertility characteristics of typical cumulic cinnamon soils profiles and soil fertility index of topsoil in different years[J]. Soils,2011,43(6):891-896

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期:
  • 出版日期: