Maras monitoring plots csv format

Machine-readable file separated by commas and without special characters. Shows the location and main vegetation, soil, land function and floristic variables for 426 MARAS monitoring plots, including 247 second assessments and 23 third assessments in .csv format. Variables of this file are described in Table 7 (online only). Each one of the 687 rows represents a monitoring plot reading with location, name, date of assessment, mean temperature and annual precipitation, aridity index and stocking rate data. Vegetation variables are cover, diversity, bare soil, ephemerals, standing dead and cryptogams. Vegetation structure includes patch and interpatch length, basal cover, patch height and width. Land Function Analysis includes indexes of Stability, Infiltration and Nutrient recycling. Soil laboratory results for two samples (patch and interpatch) include pH 1:2.5, conductivity (dS/m), Organic matter (%), organic carbon, Nitrogen (%), clay, silt and sand content (%). The rest of the columns are absolute cover values for all the vascular perennial species detected.

本数据集为无特殊字符的逗号分隔机器可读文件，以.csv格式存储，涵盖426个MARAS监测样地的位置、主要植被、土壤、土地功能及植物区系变量，其中包含247次二次评估与23次三次评估。本文件的变量说明详见表7（仅线上可查看）。该文件的687行数据每一行均对应一处监测样地的观测记录，包含位置、样地名称、评估日期、平均气温、年降水量、干旱指数以及载畜率数据。植被变量包括盖度、物种多样性、裸土占比、短命植物、枯立物与隐花植物；植被结构指标涵盖斑块与斑间长度、基部盖度、斑块高度与宽度。土地功能分析指标包含稳定性、入渗率与养分循环相关指数。两份分别取自斑块与斑间区域的土壤样本的实验室测试结果包括pH 1:2.5悬液、电导率（单位：dS/m）、有机质（%）、有机碳、氮含量（%）、黏粒、粉粒与砂粒占比（%）。其余列均为本次检测到的所有维管多年生植物的绝对盖度值。