Chin J Plan Ecolo ›› 2016, Vol. 40 ›› Issue (9): 952-957.doi: 10.17521/cjpe.2015.0454

• Data Paper • Previous Articles     Next Articles

Characteristics of plant communities containing rare conifers in Poyang Lake Basin, China

Quan FANG, Yi-Zhen LIU, Gang GE*()   

  1. School of Life Science, Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang 330022, China
  • Received:2015-12-10 Accepted:2016-05-09 Online:2016-09-29 Published:2016-09-10
  • Contact: Gang GE E-mail:gge@ncu.edu.cn

Abstract:

The endangerment mechanism of rare conifer species is a very critical problem in conservation biodiversity. Thus, the studies on the protection of the rare and endangered coniferous trees have received extensive attention. The objective of this study was to understand the survival and distribution of the rare coniferous tree species in natural forests of the Poyang Lake Basin. Field investigations on plant communities were conducted in 21 plots from Oct. 2014 to Oct. 2015. These plots were distributed in the Nanling Mountains, Luoxiao Mountains, Wuyi Mountains, Huangshan Mountains, and Jiuling Mountain. The dimensions of each plot were 20 m × 20 m. Community species composition and quantitative characteristics in each plot were recorded. The importance values of trees, shrubs and herbs were computed, respectively. The community types and structural properties were analyzed. A total of 23 sets of community sampling data were obtained in details. A number of 11 species of rare conifers were found in 14 different formations. Rare conifer trees mainly occurred in the communities as co-edificatos or companion species. The formations included Form. Taxus wallichiana var. mairei, Form. Pseudotsuga sinensis, Form. Fokienia hodginsii and Form. Torreya grandis, where the dominant species was coniferous trees. In conclusion, our study provides valuable field investigation data of rare coniferous in Poyang Lake basin, which could provide insight into the protection and management of these species.

Key words: Poyang Lake basin, rare coniferous, community structure, plots data

Table 1

Basic information of plots sampled in the study area"

样地 Plots 纬度 Latitude (N) 经度 Longitude (E) 海拔 Altitude (m) 坡度 Slope gradient 坡向 Slope aspect 坡位 Slope position
JLS-1 24.53° 114.45° 947 26° 南坡 South 中坡 Mid-slope
JGS-2 26.50° 114.16° 1 327 31° 东南坡 Southeast 上坡 Upper slope
JGS-3 26.50° 114.16° 1 372 35° 南坡 South 下坡 Lower slope
JGS-5 26.57° 114.12° 947 10° 东坡 East 下坡 Lower slope
JGS-6 26.59° 114.13° 979 40° 南坡 South 下坡 Lower slope
JGS-7 26.58° 114.14° 1 067 30° 西北坡 Northwest 下坡 Lower slope
JGS-8 26.57° 114.23° 472 44° 西坡 West 中坡 Mid-slope
JGS-9 26.57° 114.23° 516 65° 西坡 West 中坡 Mid-slope
WGS-1 27.46° 114.13° 678 南坡 South 下坡 Lower slope
WGS-2 27.46° 114.13° 672 北坡 North 下坡 Lower slope
WGS-3 27.46° 114.13° 628 30° 西北坡 Northwest 下坡 Lower slope
PLC-1 29.05° 115.36° 111 40° 西南坡 Southwest 下坡 Lower slope
YQ-1 27.04° 116.92° 566 12° 东坡 East 下坡 Lower slope
YQ-2 27.04° 116.92° 598 10° 东坡 East 下坡 Lower slope
YQ-3 27.04° 116.92° 560 50° 东坡 East 下坡 Lower slope
QX-1 28.43° 114.73° 122 41° 西坡 West 下坡 Lower slope
QX-2 28.46° 114.71° 171 44° 东坡 East 下坡 Lower slope
SQS-1 28.91° 118.06° 1 620 31° 东坡 East 上坡 Upper slope
SQS-2 28.91° 118.05° 1 588 28° 西南坡 Southwest 上坡 Upper slope
SQS-3 28.92° 118.06° 1 604 20° 东南坡 Southeast 上坡 Upper slope
SQS-4 28.92° 118.05° 1 545 28° 西坡 West 上坡 Upper slope
SQS-5 28.93° 118.05° 1 263 40° 西坡 West 上坡 Upper slope
SQS-6 28.93° 118.05° 1 267 30° 西坡 West 上坡 Upper slope
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