Forest characteristics and population structure of Glyptostrobus pensilis, a globally endangered relict species of southeastern China
Forest characteristics and population structure of Glyptostrobus pensilis, a globally endangered relict species of southeastern China
复制标题
中国东南部全球濒危孑遗种水松森林特征及种群结构
DOI：
10.1016/j.pld.2019.06.007
复制
发表时间：
2019-06
期刊：
影响因子：
4.8
通讯作者：
Wang Chong-Yun
中科院分区：
文献类型：
--
作者：
Tang Cindy Q.;Yang Yongchuan;Momohara Arata;Wang Huan-Chong;Hong Truong Luu;Li Shuaifeng;Song Kun;Qian Shenhua;LePage Ben;Dong Yi-Fei;Han Peng-Bin;Ohsawa Masahiko;Buu Thach Le;Huu Dang Tran;Minh Tri Dang;Peng Ming-Chun;Wang Chong-Yun
水松（Glyptostrobuspensilisis）是水松属（Glyptostrobus）中唯一现存的树种.它是中国南部、越南中部和老挝东部的特有种，今天在野外几乎灭绝。目前，我国猪笼草的森林群落特征和种群结构尚不清楚。通过对福建省6种沼泽林群落的垂直分层、物种组成和多样性等群落特征和种群结构的分析，研究了不同林分的胸径和龄级的频率分布。其余的野生标本从大约15年到大约357年不等，平均约为1000年。85岁，只有少数个体不到20岁。与越南的长喙山青冈林分和种群相比，两个地区的长喙山青冈林分除优势种长喙山青冈外，其分类组成均不同。Shannon-Wiener多样性指数表明，福建省各林分的地上层物种多样性指数（平均0.26）远低于越南（平均1.97），而林下层物种多样性指数（平均2.41）则基本相同。此外，在福建省的研究点还发现了18株猪笼草幼苗。这一发现表明，尽管这些种群比越南的种群相对健康，但其再生能力极差，种群数量正在下降。
The Chinese water pineGlyptostrobus pensilisis the sole surviving species of the genusGlyptostrobus. It is endemic to southern China, central Vietnam, and eastern Laos, and today it is nearly extinct in the wild. Forest community characteristics and population structure ofG. pensilisin China have remained unknown up to now. We investigated six swamp forest stands and analyzed their forest community characteristics (i.e. vertical stratification, species composition, and diversity) and population structure, including the frequency distribution of DBH (diameter at breast height) and age-classes as found in Fujian Province, southeastern China.The vertical stratifications of all the forest stands were rather simple. The remaining wild specimens ranged from roughly 15 to some 357 years for an average of ca. 85 years, with only a few individuals less than 20 years old. Compared with the stands and populations ofG. pensilisin Vietnam, the taxonomic compositions of the stands in the two regions were different, except for the dominant species-G. pensilis. The Shannon–Wiener index showed the overstory of each stand had much lower diversity (0.26 on average) in Fujian Province than that (1.97 on average) in Vietnam, whereas the diversity indices were about the same (around 2.41) for the understories in the two regions. Furthermore, we discovered 18G. pensilisseedlings at the study sites in Fujian Province. This discovery demonstrates thatG. pensilisregeneration is extremely poor and its populations are declining, although these populations are relatively healthier than those in Vietnam.
登录
查看更多内容
影响因子：
1.4
作者：
R. Mathewes;D. Greenwood;S. B. Archibald
通讯作者：
R. Mathewes;D. Greenwood;S. B. Archibald
DOI：
--
发表时间：
2008
期刊：
--
影响因子：
--
作者：
He Zhong-sheng
通讯作者：
He Zhong-sheng
DOI：
10.3374/0079-032x(2007)48
发表时间：
2007-04-01
影响因子：
1.3
作者：
Joyce, Walter G.
通讯作者：
Joyce, Walter G.
DOI：
--
发表时间：
2002
期刊：
--
影响因子：
--
作者：
Guo Shuang;Z. Guang
通讯作者：
Guo Shuang;Z. Guang
DOI：
--
发表时间：
2005
期刊：
Phytologia Balcanica: International Journal of Balkan Flora and Vegetation
影响因子：
--
作者：
V. Bozukov;Boris V. Tsenov
通讯作者：
V. Bozukov;Boris V. Tsenov