Data used in Shrub expansion modulates belowground impacts of changing snow conditions in alpine grasslands study

We established two complementary field experiments. The first experiment used a natural gradient in snowmelt timing combined with a shrub manipulation treatment across three alpine valleys in the Austrian Alps to test how earlier snowmelt and shrub expansion affect soil microbial communities, their functioning, and nutrient pools at the landscape scape. For the second experiment, we implemented at one of the sites a multi-year snow manipulation treatment combined with a shrub manipulation treatment. This allowed us to experimentally test how reduced winter snow cover and shrub expansion individually and interactively affect soil microbial communities, their functioning, and nutrient pools and fluxes, including plant N-uptake immediately after snowmelt. These datasets were generated from these experiments.

本研究构建了两项互补的实地实验。首项实验在奥地利阿尔卑斯山脉的三个山谷中，结合自然梯度雪融时间与灌木调控处理，旨在检验早期雪融与灌木扩张如何影响土壤微生物群落、其功能及其在景观尺度上的养分库。次项实验则在一处场地实施多年期雪覆盖调控处理，并与灌木调控处理相结合。此举旨在实验性地探讨冬季雪覆盖减少与灌木扩张如何单独及交互影响土壤微生物群落、其功能及其养分库与通量，包括雪融后植物的氮素吸收。这些数据集均源于上述实验。