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不同林龄华北落叶松人工林地土壤肥力评价
王玲玲1; 徐福利2; 王渭玲1; 赵海燕3; 孙鹏跃1
2016
Source Publication西南林业大学学报
Volume36Issue:2Pages:17-24
Abstract

运用主成分分析与Norm 值、隶属度函数结合的方法,分析评价秦岭地区不同林龄( 5、10 和
20 年生) 华北落叶松人工林土壤肥力的大小。结果表明: 土壤有机碳、全氮、硝态氮、铵态氮、速效
磷、速效钾、酸性磷酸酶、脲酶、蔗糖酶组成了土壤质量评价的最小数据集; 速效磷隶属度数值最小,
为0. 14,铵态氮、脲酶次之,为0. 26,速效钾与蔗糖酶的隶属度数值最大,分别为0. 75、0. 74; 不同林
龄土壤综合质量指数数值为0. 43 ~ 0. 57,随着林龄的增加,土壤肥力呈现降低的趋势,即
5a > 10a > 20a; 华北落叶松人工林样地磷元素的消耗速率> 氮元素,消耗速率分别为9. 94%、
1. 11%,磷在华北落叶松生长中的限制作用会日益凸显。

Other Abstract

The level of soil fertility of different aged( 5 - ,10 - ,and 20 - year - old) Larix principis - rupprechtii
plantation was assessed by using the method of principal component analysis,Norm value and membership
function of fuzzy mathematic. The study found that the minimum data set of soil assessment comprises organic carbon,
total nitrogen,nitrate nitrogen,ammonium nitrogen,available phosphorus,available potassium,acid phosphatase,
urease and invertase. The value of available phosphorus was the smallest,the number was 0. 14,and the
ammonium nitrogen and urease took the second place,the number was 0. 26. On the contrary,the membership value
of available potassium and sucrose were maximal,reach to 0. 75 and 0. 74,respectively; In different aged Larix
principis - rupprechtii plantation,the value of soil comprehensive quality index fall in between 0. 43 and 0. 57. Soil
fertility showed a declining trend with age,the sequence is 5a > 10a > 20a; The consumption rate of phosphorus
was more quickly than that of nitrogen,the rate was 9. 94% and 1. 11% respectively,so the restriction of phosphorus
on the growth of Larix principis-rupprechtii will increasingly prominent.

Keyword华北落叶松 人工林 土壤肥力评价 主成分分析 隶属度函数
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8718
Collection水保所知识产出(1956---)
Affiliation1.西北农林科技大学生命科学学院
2.中国科学院水利部水土保持研究所
3.西北农林科技大学资源环境学院
Recommended Citation
GB/T 7714
王玲玲,徐福利,王渭玲,等. 不同林龄华北落叶松人工林地土壤肥力评价[J]. 西南林业大学学报,2016,36(2):17-24.
APA 王玲玲,徐福利,王渭玲,赵海燕,&孙鹏跃.(2016).不同林龄华北落叶松人工林地土壤肥力评价.西南林业大学学报,36(2),17-24.
MLA 王玲玲,et al."不同林龄华北落叶松人工林地土壤肥力评价".西南林业大学学报 36.2(2016):17-24.
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