[1]刘发林,张思玉.火干扰下马尾松林物种多样性和土壤养分特征[J].西北林学院学报,2009,24(05):36-40.
　LIU Fa-lin,ZHANG Si-yu.Characters of Species Diversity and Soil Nutrition of Pinus massoniana Forest under Fire Desturbance[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2009,24(05):36-40.
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火干扰下马尾松林物种多样性和土壤养分特征 ()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第24卷
期数:
2009年05期
页码:
36-40
栏目:
森林生物学
出版日期:
2009-09-30

文章信息/Info

Title:
Characters of Species Diversity and Soil Nutrition of Pinus massoniana Forest under Fire Desturbance
作者:
刘发林; 张思玉
南京森林公安高等专科学校,治安系,江苏,南京,210046;中南林业科技大学,资源与环境学院,湖南,长沙,410004
Author(s):
LIU Fa-lin; ZHANG Si-yu
关键词:
马尾松;  物种多样性;  土壤;  化学性质;  火干扰
分类号:
S791.248.02
文献标志码:
A
摘要:
研究了低强度火对马尾松次生林物种多样性的影响及不同火强度干扰下土壤化学性质5 a内的动态变化规律.结果表明,火干扰样地内物种和植物个体数目均高出对照样地,分别为对照样地的118和108;对照样地内物种多样性指数Gleason、Shannon-Wiener指数、Simpson指数和Pielou均匀度分别为3.01、11.21、10.30和0.74,火干扰样地对应的指数分别为12.13、5.61、26.13和0.84,树冠层、灌木层、草本层的均匀度分别由0.71、0.83、0.55提高到0.81、0.89、0.72.除有机质外,火干扰对土壤阴离子交换(CEC)、全N、碱解N、全P、全K和速效K的影响持续期不长,大多在2 a左右恢复到火烧前的水平;火干扰强度对Ⅰ层有机质、速效P含量和Ⅱ层速效P含量的影响极显著(p<0.05),不同时间点Ⅰ层土壤有机质(SOM)和Ⅱ层速效P含量随火干扰影响的趋势有明显的差异(p<0.05),分别拟合了火干扰强度对SOM全P、碱解N和速效P含量(火灾后第一年)的影响模型.

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备注/Memo

备注/Memo:
国家自然科学基金项目(30671696);国家林业局科技项目(069320).
更新日期/Last Update: 2010-05-04