Decomposition dynamics of native and standard substrates in forests and peatlands: Mukhrino field station, Western Siberia (2016-2023)

<p>To estimate the values and parameters of decomposition in major ecosystem types in Mukhrino field station, a series of experiments had been initiated since 2016. Occasional studies on decomposition of peat and Sphagnum spp. were performed earlier by the Institute of Soil Science and Agrochemistry (Novosibirsk) (Kosykh et al., 2017a; 2017b). The classical approach of litter bags was used to estimate weight lost, including standard litter type (tea) and native litters in natural as well as in experimental warming conditions (temperature raise by Open Top Chambers). The standard tea substrate was used to compare habitat effect and as part of the global projects on decomposition dynamics, where two different tea types are used to estimate decomposition constant from only one extraction point (Keuskamp et al., 2013; Djukic et al., 2018; MacDonald et al., 2018). To estimate the natural values of decomposition, eleven types of native substrates were chosen.</p>
<p>The measurements were filled in the table formatted by Darwin Core standard for biological diversity data and available openly in GBIF (the dataset is updated after each new year of measurements).</p>

为估算穆克里诺田野站主要生态系统类型的分解值和参数，自2016年起，开展了一系列实验。早在之前，由土壤科学和农业化学研究所（诺沃西比尔斯克）进行的偶然性研究涉及泥炭和苔藓属植物的分解（科西科夫等，2017a；2017b）。采用经典的小袋法（litter bags）来估算重量损失，包括标准小袋类型（茶叶）和当地植被，在自然条件以及实验性升温条件下（通过开顶箱升温）进行。标准茶叶基质被用于比较生境效应，并作为全球分解动力学研究项目的一部分，其中使用两种不同的茶叶类型从单一提取点估算分解常数（库斯坎普等，2013；德尤基奇等，2018；麦克唐纳等，2018）。为估算自然分解值，选择了十一种本地基质类型。测量数据按照生物多样性数据的达尔文核心标准格式化，并在GBIF（全球生物多样性信息设施）上公开提供。数据集在每年的新测量之后进行更新。）