Carbohydrate depletion in roots impedes phosphorus nutrition of forest trees

The aim of the study was to determine the effect of belowground plant-derived carbohydrates on P uptake, P concentrations and enzymes activities related to P mobilization in roots, ectomycorrhizas and soil and on the abundances of P-related genes in soil bacteria.

We report data from a girdling experiment in two temperate beech forest with contrasting soil phosphorus concentrations. We used soil cores and the fractions of the organic layer and mineral topsoil separately one and eight weeks after the girdling treatment. We collected bulk soil, rhizosphere and root. We provide data on soil for pH, water extractable organic carbon mineral elements in soil, and soil enzyme activities. Enzyme activities are shown for the bulk soil and the rhizosphere We provide data for microbial P, microbial biomass, gene abundances of P-related genes for soil bacteria, and phospholipid fatty acids. We provide data on root biomass, carbohydrates, total P, soluble, other root mineral nutrients, and phopph...

本研究旨在明确植物地下源碳水化合物对根系、外生菌根（ectomycorrhizas）及土壤中磷（Phosphorus, P）吸收、磷浓度与磷活化相关酶活性的影响，同时探究其对土壤细菌内磷相关基因丰度的作用。
本研究报道了两项在土壤磷浓度存在显著差异的温带山毛榉林中开展的环剥（girdling）实验所获取的数据集。研究人员分别在环剥处理后1周与8周，采集了土壤岩心（soil cores）以及有机层与矿质表层土的分样，并收集了原状土（bulk soil）、根际（rhizosphere）土壤及根系样品。
本研究提供了土壤pH、水提取态有机碳、土壤矿质元素及土壤酶活性相关数据，其中酶活性数据针对原状土与根际土壤。此外，本研究还提供了土壤微生物磷、微生物生物量（microbial biomass）、土壤细菌磷相关基因丰度以及磷脂脂肪酸（phospholipid fatty acids）相关数据。同时提供了根系生物量、碳水化合物、总磷、可溶性养分及其他根系矿质养分相关数据，以及原文截断的磷相关数据。