Biotic and abiotic composition of biological soil crusts in grassland and tarbush ecosystems at the Jornada Basin LTER site, 2017-2018

This data package contains data on biotic and abiotic composition of
biological soil crusts at grassland and shrubland sites at the
Jornada Basin LTER site. Biological soil crusts (BSCs) of three
types, cyanolichen, dark algal, and light algal, were collected
during the summer 2017, fall 2017, and spring 2018 seasons to
discern differences between two vegetation states (grass and
tarbush). A total of 51 biocrusts were collected from 3 tarbush
sites and 3 grass sites. Phospholipid fatty acid analysis was used
to characterize the microfloral community, while a modified
extraction method was employed to observe direct counts of
microfauna (multicellular microbes and protists). Soil chemical
analysis was also used to obtain nutrient concentrations of each
biocrust. Data include microfauna counts, microflora biomass, and
soil nutrient composition. This study is complete.

本数据集包含乔纳达盆地长期生态研究（Long-Term Ecological Research，LTER）站点内草原与灌丛样地的生物土壤结皮（Biological Soil Crusts，BSCs）的生物与非生物组成数据。本次研究于2017年夏季、2017年秋季及2018年春季，采集了三类BSCs，分别为蓝地衣型、深色藻型与浅色藻型，以辨析两种植被状态（草原与塔布什灌丛（tarbush））下的结皮差异。本次采样共从3处塔布什灌丛样地与3处草原样地中获取了51份生物土壤结皮样本。本研究采用磷脂脂肪酸分析（Phospholipid Fatty Acid Analysis，PLFA）表征微植物群落组成，同时使用改良提取法直接计数微型动物（多细胞微生物与原生生物）；此外还通过土壤化学分析测定了每份结皮样本的养分浓度。数据集涵盖微型动物计数结果、微植物生物量数据及土壤养分组成信息。本研究数据已完整收录。