Effects of disturbance on vertical stratification of broad-leaved secondary forests in Tatsunokuchi-yama experimental forest [Okayama, Japan]
Effects of disturbance on vertical stratification of broad-leaved secondary forests in Tatsunokuchi-yama experimental forest [Okayama, Japan]
复制标题
龙之口山实验林阔叶次生林垂直分层的干扰效应[日本冈山]
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
I. Hosoda
中科院分区：
文献类型：
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作者：
Y. Goto;K. Tamai;T. Miyama;Y. Kominami;I. Hosoda
原稿受付:平成 18年 2月 22日 Received Feb, 22, 2006 原稿受理:平成 18年 5月 15日 Accepted May 15, 2006 * 森林総合研究所気象環境研究領域 〒 305-8687茨城県つくば市松の里 1 Department of Meteorological Environment, Forestry and Forest Products Research Institute (FFPRI), 1 Matsunosato, Tsukuba, Ibaraki 305-8687, Japan, e-mail: gotyos@ffpri.affrc.go.jp 1 ) 森林総合研究所気象環境研究領域 Department of Meteorological Environment, Forestry and Forest Products Research Institute (FFPRI) 2)森林総合研究所九州支所 Kyusyu Research Center, Forestry and Forest Products Research Institute (FFPRI) 3)森林総合研究所関西支所 Kansai Research Center, Forestry and Forest Products Research Institute (FFPRI) Abstract Streamflow observations have been carried out since 1937 in the Kitatani watershed (17.27 ha) and the Minamitani watershed (22.61 ha) of the Tatsunokuchi-yama Experimental Forest (34°42’ N, 133°58’ E). All pine trees within the two watersheds were cut down between 1944 and 1946, after which deciduous broad-leaved forest grew in the Kitatani watershed without any disturbances. However, large-scale stand replacing disturbances such as fire and pine wilt disease have occurred in the Minamitani watershed. The forest of the Kitatani watershed was classified into 3 types and that of the Minamitani watershed into 4 types, on the basis of tree height and species composition. The aboveground biomass was large and increased during the 7-year census period in the kitatani watershed. The vertical stratification of the three forest types in the Kitatani watershed was shown to be developed, while all forest types in the Minamitani watershed were judged to be immature, and both the stem density and the aboveground biomass of forest type Minamitani-6 decreased. However, the biomass growth rate of forest type Minamitani-4, which occupied the largest area in the Minamitani watershed, was the highest of all forest types in both watersheds. Deciduous broadleaved forests with developed vertical stratification such as the Kitatani watershed will consequently be established in the Minamitani watershed.