Plant biodiversity data and environmental and spatial data from Jebel Ichkeul, a limestone mountain in northern Tunisia (1983)

Records for herbaceous and woody plants at 78 nested quadrats on a limestone mountain (Jebel Ichkeul) in Le Parc National de L’Ichkeul are presented. Data for plants represent percent cover (Braun-Blanquet scale), to identify environmental gradients and investigate phytosociology of plant communities. Environmental variables are also presented: altitude, slope, aspect, rock out cropping, index of grazing intensity (78 sites) and olive tree densities by size class (69 sites). Soil pH was collected for 50 sites. Plant surveys were done June to August 1983 by Dr. D.A. Kirk as part of his Master’s thesis degree in Conservation at University College London (1983). This work was funded by the Natural Environment Research Council. Full details about this dataset can be found at https://doi.org/10.5285/4e36cdfa-0281-423f-99a8-e7c331b2e0d1本数据集收录了伊奇克勒国家公园（Le Parc National de L’Ichkeul）内石灰岩山地杰贝勒伊奇克勒（Jebel Ichkeul）的78个嵌套样方（quadrat）中的草本与木本植物调查记录。植物数据采用布朗-布朗喀盖度分级法（Braun-Blanquet scale）记录盖度百分比，旨在识别环境梯度并探究植物群落的植物社会学特征。本数据集同时收录了以下环境变量：海拔、坡度、坡向、岩石裸露率、78个样点的放牧强度指数，以及69个样点的不同径级橄榄树密度。另对50个样点测定了土壤pH值。本次植物调查于1983年6月至8月由D.A.柯克博士（Dr. D.A. Kirk）完成，作为其伦敦大学学院（University College London）保护学硕士学位论文的研究内容（1983年）。本研究由自然环境研究理事会（Natural Environment Research Council）资助。本数据集的完整详细信息可通过以下链接查阅：https://doi.org/10.5285/4e36cdfa-0281-423f-99a8-e7c331b2e0d1