Southern Korup Transect Plots Data

Text to files on Korup plot data of Gartlan and Thomas
In the southern part of Korup National Park (58o10 N, 8o70 E), 135 plots, each of 80 m x 80m in area, were laid out at 150-m intervals along four E-to-W transect lines (P, Q, R and S; each of 34 plots, excepting Q with 33). Lines were ~5 km in length, and separated S-to-N at ~4 km distance. Shrubs and small trees were very lightly cut to show a way between plots. Each plot was divided into four 40-m x 40-m subplots, although only data at the whole plot level are archived here. Details of the layout and environmental information are found in Gartlan et al. (1986). All trees of ≥ 30 cm gbh (girth at breast height, 1.3 m) were measured and identified. Coordinate locations of trees within subplots were not taken: trees were not tagged. Lianas were also recorded but are not included here. The plots were not marked at their corners in any permanent manner apart from an indication of their location by single tags on trees at the start of each plot on the line. The field work was undertaken in 1975-1977, principally by J. S. Gartlan, D. W. Thomas and F. Namata. Plots were relocatable up to about 1998, after which time many tags had become very difficult to find. Except for transect P, the southernmost line, and which has continued in use for further research up until the present, the other lines have faded.
There are four ASCII-text files. These were the inputs for the abundance tables, classifications and ordinations in Gartlan et al. (1986). (1) ‘korbar.txt’ has the basal areas (ba) per plot (units: m2/0.1-ha) of each tree species, written in the Cornell Condensed Format (CCF) of the programs DECORANA and CANOCO. Each line of the data has a plot number followed by four couplets of ‘species number and ba-value’. (Some lines have trailing zero entries.) Plots numbers are: 1-34, transect P; 35-67, Q; 68-101, R; and 102-135, S. (2) ‘korfre.txt’ has the numbers of trees of each tree species per plot, corresponding to ‘korbar.txt’ and also in the CCF. (3) ‘korlsp.txt’ contains a list of the 444 species’ identifier codes (all transects); and (4) ‘kortax.txt’ is a dictionary of these species’ codes giving their full Latin names and authorities as of 1986, arranged under family names. The taxonomy has not been updated, and the modern user may want to revise it using an international plant names’ index.
These data were also the basis to Newbery & Gartlan (1996) and Newbery et al. (1988, 1997, 1998).
_References
Gartlan, J. S., D. M. Newbery, D. W. Thomas, and P. G. Waterman. 1986. The influence of topography and soil phosphorus on the vegetation of Korup Forest Reserve, Cameroun. Vegetatio 65:131-148.
Newbery, D. M., I. J. Alexander, and J. A. Rother. 1997. Phosphorus dynamics in a lowland African rain forest: The influence of ectomycorrhizal trees. Ecological Monographs 67:367-409.
Newbery, D. M., I. J. Alexander, D. W. Thomas, and J. S. Gartlan. 1988. Ectomycorrhizal Rain-Forest Legumes and Soil-Phosphorus in Korup-National-Park, Cameroon. New Phytologist 109:433-450.
Newbery, D. M. and J. S. Gartlan. 1996. Structural analysis of the rain forest at Korup and Douala Edea, Cameroon. Proceedings of the Royal Society of Edinburgh B 104:177-224.
Newbery, D. M., N. C. Songwe, and G. B. Chuyong. 1998. Phenology and dynamics of an African rain forest at Korup, Cameroon. Pages 267-308 in D. M. Newbery, H. H. T. Prins, and N. D. Brown, editors. Dynamics of tropical communities. Blackwell Science, Oxford.

Gartlan与Thomas的科鲁普样地数据相关文本文件

在科鲁普国家公园南部（5°10′N，8°7′E），沿4条东西向样带（P、Q、R、S）以150米间隔布设了135个样地，每个样地面积为80米×80米；其中P、R、S样带各含34个样地，Q样带含33个样地。每条样带长约5千米，样带间南北间距约4千米。为打通样地间的通行路径，对灌丛与幼树进行了轻度修剪。每个样地被划分为4个40米×40米的亚样地，但本次归档仅提供全样地尺度的数据集。样地布设细节与环境信息详见Gartlan等人（1986）的研究。

对所有胸高围径（girth at breast height，1.3米处，缩写gbh）≥30厘米的树木进行了测量与物种鉴定。未记录亚样地内单木的坐标位置，且未对树木进行挂牌标记。调查中同时记录了藤本植物，但本次数据集未包含相关数据。样地未设置永久性角标，仅在每条样带的每个样地起始处的树木上悬挂单个标牌以指示样地位置。

野外调查工作于1975-1977年间开展，主要由J. S. Gartlan、D. W. Thomas与F. Namata完成。截至1998年左右，样地仍可被重新定位，此后多数标牌已难以寻觅。仅最南部的P样带仍在后续研究中持续使用至今，其余样带的标牌已逐渐消失。

本次提供4个ASCII文本文件，为Gartlan等人（1986）研究中物种丰度表、分类与排序分析的原始输入数据。
(1) 'korbar.txt'：存储各树种在每个样地的胸高断面积（basal area，缩写ba），单位为平方米/0.1公顷，数据格式采用DECORANA与CANOCO软件的康奈尔精简格式（Cornell Condensed Format，CCF）。每行数据以样地编号开头，随后跟随4组“物种编号与断面积值”（部分行末尾存在零值条目）。样地编号对应规则为：P样带1-34号，Q样带35-67号，R样带68-101号，S样带102-135号。
(2) 'korfre.txt'：存储每个样地内各树种的个体数量，与'korbar.txt'一一对应，同样采用CCF格式。
(3) 'korlsp.txt'：包含所有样带共444个物种的识别编码列表。
(4) 'kortax.txt'：以科为分类单元整理的物种编码词典，记录了1986年版的物种完整拉丁学名与命名人信息。该分类系统未进行更新，现代使用者可通过国际植物名称索引对其进行修订。

该数据集同时为Newbery与Gartlan（1996）以及Newbery等人（1988、1997、1998）的研究提供了基础数据。

_References
Gartlan, J. S., D. M. Newbery, D. W. Thomas, and P. G. Waterman. 1986. The influence of topography and soil phosphorus on the vegetation of Korup Forest Reserve, Cameroun. Vegetatio 65:131-148.
Newbery, D. M., I. J. Alexander, and J. A. Rother. 1997. Phosphorus dynamics in a lowland African rain forest: The influence of ectomycorrhizal trees. Ecological Monographs 67:367-409.
Newbery, D. M., I. J. Alexander, D. W. Thomas, and J. S. Gartlan. 1988. Ectomycorrhizal Rain-Forest Legumes and Soil-Phosphorus in Korup-National-Park, Cameroon. New Phytologist 109:433-450.
Newbery, D. M. and J. S. Gartlan. 1996. Structural analysis of the rain forest at Korup and Douala Edea, Cameroon. Proceedings of the Royal Society of Edinburgh B 104:177-224.
Newbery, D. M., N. C. Songwe, and G. B. Chuyong. 1998. Phenology and dynamics of an African rain forest at Korup, Cameroon. Pages 267-308 in D. M. Newbery, H. H. T. Prins, and N. D. Brown, editors. Dynamics of tropical communities. Blackwell Science, Oxford.