Raw counts of pollen and spores for the sediment core Te2019 (Svalbard, Colesdalen valley, lake Tenndammen (N 78°06.118; E 15°02.024) and for 10 soil samples collected from the lake shores

We analysed for pollen lacustrine sediments from Svalbard (lake Tenndammen) as well as ten soil probs collected from the lake's shores. In total, 56 pollen taxa were registered in the sediments, whilst in the soil 35 pollen types were revealed. Major changes in pollen assemblages after ca 1900 CE were associated with human impact. Around 1920 CE, the first signs of introduced plant taxa were identified, i.e., by the presence of Apiaceae and Fabaceae, pollen. Besides, large-sized pollen with a thick exine and annulus diameter of 10.6-13 μm identified as Poaceae/Cerealia type were constantly present since ca 1920 CE. Other exotic pollen, that includes Ulmus, Juglans, and tropical pollen of Albizia / Mimosa type, Eucalyptus type, Acalupha type, Passiflora type, those are found in the sediments exclusively during 1950s, the period associated with the most intensive mining activity and human migration to and from Colesdalen. […]

本研究对斯瓦尔巴德（Tenndammen 湖）的湖滨沉积物中的花粉进行了分析，同时收集了十份湖岸土壤样本。总计在沉积物中登记了56种花粉类群，而在土壤中则揭示了35种花粉类型。自公元1900年左右开始，花粉组合发生了重大变化，这与人类活动的影响密切相关。大约在公元1920年左右，首次发现了引入的植物类群迹象，即通过Apiaceae和Fabaceae花粉的存在。此外，自约公元1920年以来，直径为10.6-13微米的具有厚壁和环状直径的大型花粉，被鉴定为Poaceae/Cerealia类型，一直持续存在。其他外来花粉，包括Ulmus、Juglans以及Albizia/Mimosa类型的热带花粉、Eucalyptus类型、Acalupha类型、Passiflora类型，这些花粉仅在1950年代沉积物中存在，这一时期与Colesdalen地区最激烈的采矿活动和人类迁移密切相关。