[1]胡秀娟,程积民,杨晓梅,等.黄土高原子午岭林区辽东栎种群分布格局及群落特征研究[J].西北林学院学报,2010,25(05):1-6.
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黄土高原子午岭林区辽东栎种群分布格局及群落特征研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第25卷
期数:
2010年05期
页码:
1-6
栏目:
森林生物学
出版日期:
2010-09-30

文章信息/Info

作者:
胡秀娟;程积民;杨晓梅;范文娟;孟蕾;韩娟娟;
西北农林科技大学林学院;中国科学院水利部水土保持研究所;
关键词:
黄土高原; 子午岭林区; 辽东栎; 分布格局; 群落特征
摘要:
辽东栎是子午岭地区主要的优势森林树种,通过野外调查和室内分析相结合的方法,对子午岭林区辽东栎林种群分布格局及群落特征进行了研究,为其合理保护和经营提供依据。调查结果表明:(1)辽东栎随取样面积的增大,种群聚集度呈现出小→大→小的趋势;随林龄的增加,种群由聚集分布趋向随机分布。(2)子午岭辽东栎林除局部林是与其他林木混交外,一般都是纯林,形成乔灌草的典型垂直结构。(3)子午岭林区辽东栎林物种较为丰富且分布均匀,多样性大。乔木层、灌木层、草本层三者的多样性指数呈现出由低到高的特点。(4)林下幼苗的更新情况并不是太好,幼苗更新数量为80~210株.hm-2,且随外部环境的不同而有所差别。

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备注/Memo

备注/Memo:
中国科学院重要方向项目(KZCX2-YW-441);;
更新日期/Last Update: 2010-09-20