[1]李旭,王海燕*,杨晓娟,等. 东北近天然落叶松云冷杉林不同间伐强度土壤肥力研究[J].西北林学院学报,2015,30(02):1-7.[doi:doi:10.3969/j.issn.1001-7461.2015.02.01]
　LI Xu,WANG Hai-yan*,YANG Xiao-juan,et al. Soil Fertility in Semi-natural Mixed Larch-spruce-fir Stands under Different Thinning Intensities[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2015,30(02):1-7.[doi:doi:10.3969/j.issn.1001-7461.2015.02.01]
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 东北近天然落叶松云冷杉林不同间伐强度土壤肥力研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第30卷
期数:
2015年02期
页码:
1-7
栏目:
出版日期:
2015-03-30

文章信息/Info

Title:
 Soil Fertility in Semi-natural Mixed Larch-spruce-fir Stands under Different Thinning Intensities
文章编号:
1001-7461(2015)02-0001-07
作者:
 李旭1; 2; 王海燕1*; 杨晓娟1; 刘玲1; 李卫松1; 王岳1
 （1.北京林业大学 林学院，北京 100083；2.北京林业大学 水土保持学院，北京 100083）
Author(s):
 LI Xu1; 2;  WANG Hai-yan1*;  YANG Xiao-juan1;  LIU Ling1;  LI Wei-song1;  WANG Yue1
 （1. School of Forestry, Beijing Forestry University, Beijing 100083，China; 2. School of Soil and Water Conservation, Beijing Forestry University,Beijing 100083，China）
关键词:
 ; 土壤肥力; 间伐强度; 主成分分析法
Keywords:
 ; soil fertility;  thinning intensity;  principal component analysis
分类号:
S718.516
DOI:
doi:10.3969/j.issn.1001-7461.2015.02.01
文献标志码:
A
摘要:
 基于吉林省汪清林业局金沟岭林场5个区组共20块近天然落叶松云冷杉林样地0~10 cm、10~20 cm、20~40 cm和40~60 cm的土壤采集及理化性质测定，运用主成分分析法对不同间伐强度下（0%、20%、30%和40%）的土壤肥力进行综合评价，分析讨论了间伐强度对各土壤肥力因子和综合土壤肥力的影响。结果表明，间伐强度对土壤pH值、有机质、全N、全P、全K和速效K影响显著（p<0.05），而对土壤密度、含水量、有效P和CEC的影响不显著（p>0.05）；各土壤肥力因子之间具有一定的相关性，有机质、有效P、速效K、全N和全P各肥力因子之间均呈极显著正相关，全K与全P极显著正相关，而与有机质和全氮极显著负相关，CEC与有机质和全N极显著正相关；根据不同间伐强度土壤肥力综合评价得分，土壤肥力状况由高到低依次为30%、20%、对照、40%。
Abstract:
 Twenty plots in five blocks were selected in Jingouling Forest Farm administrated by Wangqing Forestry Bureau, Jilin Province. Soil samples were collected at the depths of 0-10 cm, 10-20 cm, 20-40 cm and 40-60 cm for the determination of their physico-chemical properties. Comprehensive evaluation of soil fertility under different thinning intensities (0%, 20%, 30% and 40%) was made with principal component analysis method, and the effects of thinning intensity on soil fertility were analyzed. The results showed that thinning intensity had significant effects on soil pH, organic matter, total nitrogen, total phosphorus, total potassium and readily available potassium (p<0.05), but had no significant effects on soil bulk density, water content, available phosphorus and cation exchange capacity CEC (p>0.05). Certain correlations were found among soil fertility factors. There were very significant positive correlations between soil organic matter, available phosphorus, readily available potassium, total nitrogen and total phosphorus (p<0.01). Total potassium had a very significant positive correlation with total phosphorus, but very significant negative correlations with organic matter and total nitrogen; Very significant positive correlations were found between CEC and organic matter as well as total nitrogen. According to the comprehensive evaluation of soil fertility under different thinning intensities, soil fertility was from high to low in an order of 30%, 20%, control, 40%.

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备注/Memo

备注/Memo:
 收稿日期：2014-05-13修回日期：2014-06-27
基金项目：中央高校基本科研业务费专项（TD2011-2）；国家林业局林业公益性行业科研专项（20100400201）。
作者简介：李旭，男，在读硕士，研究方向：土壤及植物营养。E-mail：LXxiaoyao@126.com
*通信作者：王海燕，女，博士，副教授，研究方向：土壤及植物营养。E-mail：haiyanwang72@aliyun.com
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