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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (25): 97-100.

所属专题： 水产渔业

• 林学 园艺 园林 • 上一篇    下一篇

森林游憩对龙虾花种群分布的影响

景美清 朱宁华 张元喜 谷雨姗   

  • 收稿日期:2012-05-16 修回日期:2012-06-05 出版日期:2012-09-05 发布日期:2012-09-05

The Impact on Distribution of the Impatiens davidi Franch Population Caused by Forest Tourism

  • Received:2012-05-16 Revised:2012-06-05 Online:2012-09-05 Published:2012-09-05

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摘要：

以张家界国家森林公园内龙虾花种群为研究对象，设置永久性调查样地，研究游憩活动对龙虾花株数、植株平均高度和平均盖度等生长指标的影响。结果表明：随着游憩活动频度的增加，龙虾花种群植株数、平均高度和平均盖度整体上呈现下降趋势。对照样方中的各草种种群则表现一定的稳定性，且存在着显著的种间竞争，冷水花和龙头草等草种表现了明显的竞争优势，在一定程度上对其他草种构成了生存胁迫，这也是龙虾花种群逐步衰退的原因之一。

关键词: 禹州市, 禹州市

Abstract:

Choose Impatiens davidi Franch population in Zhang Jiajie National Forest Park, set up permanent survey sample plot, study impact of soil physical and chemical properties and changing law of individual number, average height and coverage caused by forest tourism. The results show: Along with the increase of recreational activities frequency, number, average height and average coverage of Impatiens davidi Franch population has declined whole, Pilea microphylla (L.) Liebm and Meehania henryi (Hemsl.) be clearly competitive advantage, to a certain extent, cause the stress of survival to other species, this also is one of the reasons why Impatiens davidi Franch gradually recession for the population.