The response of forest floor vegetation and tree regeneration to deer exclusion and disturbance in a riparian deciduous forest, central Japan
The response of forest floor vegetation and tree regeneration to deer exclusion and disturbance in a riparian deciduous forest, central Japan
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日本中部河岸落叶林森林地面植被和树木再生对鹿排斥和干扰的反应
DOI：
10.1023/a:1021294021438
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发表时间：
2003
期刊：
影响因子：
1.7
通讯作者：
T. Nakashizuka
中科院分区：
文献类型：
--
作者：
Haruto Nomiya;W. Suzuki;T. Kanazashi;M. Shibata;Hiroshi Tanaka;T. Nakashizuka
在自然干扰交互作用下，研究了3年来河岸林底植被和主要树种更新对鹿的排斥反应。在这项研究开始时，鹿的密度在过去十年中迅速增加到相当高的水平（29-31只/平方米），并严重减少了研究地区森林地面植被的数量。以前占优势的矮竹几乎从森林地面上消失了。在整个研究期间，群落地上生物量稳步增加，但物种多样性变化不大。在围栏外，所有树种的幼苗都受到了严重的破坏，尤其是高大的树种。鹿啃食对苗木的出苗影响不大，但鹿践踏可能通过扰动土壤表面间接促进了某些树种的出苗。植物反应的差异也观察到鹿浏览和存在的矮竹，强烈抑制树木幼苗的招聘。根据苗木对鹿的啃食和干扰的反应，将9种主要树种分为3类：第1类为受啃食影响而受干扰影响较小的树种（黄檀、刺楸、皱皮栎和多棱海棠）;第2、3组为适应倒木干扰的树种（Betulaspp.）和河岸干扰（Alnus hirsutavar.sibirica、Ulmus davidianavar.japonica、Populus maximowicziian和Salix sachalinensis），这两个群体的幼苗存活主要受光照条件的影响。鹿食对幼苗存活和生长的影响，第2组大于第3组。
The response of forest floor vegetation and regeneration of major treespecies to deer exclusion in a riparian forest were studied for 3 years withtheinteractive effects of natural disturbances. At the start of this study, deerdensity had quickly increased to a fairly high level (29–31 individualskm−2) during the last decade and had severely reduced theamount of forest floor vegetation in the study area. Dwarf bamboos, which weredominant before, had almost diminished from the forest floor. During the studyperiod, aboveground biomass increased steadily but species diversity did notchange much in the exclosures. Outside the exclosures, the seedlings of alltreespecies were damaged greatly by deer browsing, especially the taller ones. Deerbrowsing had little effect on the emergence of tree seedlings, but deertrampling might have accelerated emergence indirectly by disturbing the soilsurface for some species. Differences in plant responses were also observed fordeer browsing and the presence of dwarf bamboo that strongly inhibits therecruitment of tree seedlings. The nine major species were classified intothreegroups according to the response of seedlings to deer browsing and disturbance.Group 1 consists of the species whose seedling survival is affected bybrowsing,but seldom by disturbances (Phellodendron amurense,Kalopanax pictus,Quercus crispulaandMalus toringo). Groups 2 and 3 consist of species adaptedto tree-fall disturbance (Betulaspp.) and ripariandisturbance (Alnus hirsutavar.sibirica,Ulmus davidianavar.japonica,Populus maximowicziiandSalix sachalinensis), respectively, and seedling survivalof these two groups is principally affected by light conditions. The effect ofdeer browsing on seedling survival and growth was greater for Group 2 than forGroup 3.
日本生物质的有益利用
DOI：
--
发表时间：
2016
期刊：
影响因子：
--
作者：
茅根創;山野博哉;田島芳満;横木裕宗;藤田昌史;栗原晴子;Hidenari Yasui;Hidenari Yasui
通讯作者：
Hidenari Yasui