Data on arbuscular mycorrhizal fungal variables and soil properties from coffee plantations in Colombia

Data on soil properties from two coffee plantations located in Chachagüí, Nariño, Colombia. Three lots called Albergue (AL), Lajas (LA) and Mataredonda (MA) were sampled three times in May 2015, September 2015 and February 2016. 17, 19 and 20 sampling sites were established within the lots AL, LA and MA, respectively. Data presented here were used to perform discriminant analyses between the three lots with the contribution of the variables arbuscular mycorrhizal colonization percentage, arbuscular mycorrhizal spore density, easily extractable glomalin, bulk density, organic matter, pH, electrical conductivity, total nitrogen, water soluble phosphorus, extractable phosphorus, cation exchange capacity, available iron, phosphatase activity, ammonia monooxygenase activity, β-Glucosidase activity and clay content to the lot classification. Statistical analyses were carried-out with R (StatR, RWizard platform version 2.0). For conducting the multivariate analyses, a dataset for each sampling time was employed separately. When a row had a “not available” value for any of the 16 variables included, the row was excluded from the dataset, resulting in the three files presented here.本数据集收录了哥伦比亚纳里尼奥省查查吉（Chachagüí）两处咖啡种植园的土壤属性数据。研究针对阿尔韦赫（Albergue，缩写AL）、拉哈斯（Lajas，缩写LA）与马塔雷东达（Mataredonda，缩写MA）三个地块，分别于2015年5月、2015年9月及2016年2月开展三次采样；AL、LA、MA地块内各布设17、19及20个采样位点。本次发布的数据用于开展三个地块间的判别分析，所选变量涵盖丛枝菌根定植率（arbuscular mycorrhizal colonization percentage）、丛枝菌根孢子密度（arbuscular mycorrhizal spore density）、易提取球囊霉素（easily extractable glomalin）、容重、有机质、pH值、电导率、全氮、水溶性磷、有效磷、阳离子交换量、有效铁、磷酸酶活性、氨单加氧酶活性、β-葡萄糖苷酶活性及黏粒含量，上述变量可为地块分类提供有效判别依据。统计分析基于R语言（StatR，RWizard平台2.0版本）完成。为开展多元统计分析，本研究分别采用各采样时间对应的独立数据集进行建模。若某一行数据在纳入的16个变量中存在任一"不可用"取值，则将该行从数据集中剔除，最终得到本次发布的三个数据文件。