Evaluation of Soil Nutrients for Different Forest Types in Xing'an Mountains Forest Area

WANG Fang; HUANG Mei; SUN Xi-hua; GONG Ya-zhen; WANG Jun-bang

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Evaluation of Soil Nutrients for Different Forest Types in Xing'an Mountains Forest Area

- Evaluation of Soil Nutrients for Different Forest Types in Xing'an Mountains Forest Area
- Bulletin of Soiland Water Conservation Vol. 32, Issue 1, Pages: 182-187(2013)
- 作者机构：
  
  1. 山东师范大学,山东,济南,250014
  2. 生态系统网络观测与模拟重点实验室中国科学院地理科学与资源研究所,北京,100101
  3. 中国人民大学环境学院,北京,100872
- 作者简介：
- 基金信息：
- DOI：
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- Published：2013
- 稿件说明：
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WANG Fang, HUANG Mei, SUN Xi-hua, et al. Evaluation of Soil Nutrients for Different Forest Types in Xing'an Mountains Forest Area[J]. Bulletin of Soiland Water Conservation, 2013, 32(1): 182-187.
DOI：

WANG Fang, HUANG Mei, SUN Xi-hua, et al. Evaluation of Soil Nutrients for Different Forest Types in Xing'an Mountains Forest Area[J]. Bulletin of Soiland Water Conservation, 2013, 32(1): 182-187. DOI：

摘要

基于大小兴安岭地区主要林型野外采样数据

利用统计学方法分析了红松林、针阔混交林、白桦林、樟子松林和蒙古栎林土壤有机质、全氮、速效磷和速效钾的垂直分布特征

并对土壤养分状况进行了综合评价。结果表明

不同林型土壤(0—40cm)有机质、全氮、速效磷、速效钾养分含量差异显著。有机质、全氮、速效磷3种土壤养分的总体分布是白桦林、针阔混交林比较高

针叶林次之

蒙古栎林比较低;而速效钾含量以蒙古栎林、白桦林为最高

针阔混交林却比较低。用改进的内梅罗综合指数法进行综合评价

结果显示

大小兴安岭林区土壤有机质和全氮含量特别丰富

速效磷含量为中等至较丰富

不同林型土壤养分总体处于良偏优水平

但速效钾比较缺乏

成为该林区土壤质量的主要限制因素。

Abstract

This study is based on the field data obtained for the main forest types in Xing'an mountains region

including coniferous forest

mixed forest

birch forest

pine forest and Mongolian oak forest.By usingstatistical method

the vertical distribution characteristics of soil organic matter

total nitrogen

availablephosphorus and potassium are analyzed and the soil nutrient status is evaluated.Results indicate that thecontents of soil organic matter

total nitrogen

available phosphorus and potassium are different significantlyamong various forest soil(0-40cm)types.The contents of organic matter

total nitrogen and availablephosphorus in the soils of birch forest and mixed forest are the highest

followed by that in coniferous forestand then Mongolian oak forest.The available potassium content in soils of the Mongolian oak forest andbirch forest is the highest and in the mixed forest

the lowest.The improved Nemerow comprehensive indexis used to evaluate soil quality.The results show that the contents of organic matter and total nitrogen areespecially abundant in Xing'an Mountain forest soils

and the content of available phosphorus is in the medium to high level.The overall soil nutrient of the studied forests is in a relatively high level

but the content of available potassium is in a low level.Lack of available potassium has become a major limitation in this area.

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