Pollen dispersal and deposition characteristics of Abies alba, Fagus sylvatica and Pinus sylvestris, Roztocze region (SE Poland)
Pollen dispersal and deposition characteristics of Abies alba, Fagus sylvatica and Pinus sylvestris, Roztocze region (SE Poland)
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罗兹托切地区（波兰东南部）冷杉、水青冈和樟子松的花粉扩散和沉积特征
DOI：
10.1007/s00334-009-0230-x
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发表时间：
2010
影响因子：
2.5
通讯作者：
I. Pidek
中科院分区：
文献类型：
--
作者：
A. Poska;I. Pidek
樟子松、冷杉、白冷杉。和欧洲重要的造林树种，根据化石沉积物的花粉分析结果，对古生态解释具有重要意义。利用模拟和实际植被图、测得的降速值和文献中的花粉生产力估计值，对樟子松、冷杉和樟子松的潜在花粉载量进行了模拟。由于杉木花粉落地速度快，产粉量适中，随着距离花粉源距离的增加，杉木花粉流入急剧下降。绝大多数冷杉花粉沉积在采样点50米以内，主要分布在100米以内。山毛榉的相应数量为300米和1,800米，松树为1,000米和4,500米。观测到的松树和水曲柳的平均花粉累积率(PAR)值分别约为5,800和1,100粒/年−2/年−1。以冷杉为例，整个地区的年平均标准差约为700亿粒/厘米−2/年−1。在波兰东南部，区域信号由冷杉200粒/厘米−2/年−1和冷杉500粒/厘米−2/年−1的部分代表。当地存在/不存在冷杉、樟子松和樟子松的阈值分别为1,000粒/厘米−2/年−1，>；2,000粒/厘米−2/年−1和3,500公斤/厘米−2/年−1。
Pinus sylvestris L., Abies alba Mill. and Fagus sylvatica L.—the significant forest forming tree species in Europe are important for palaeoecological interpretations based on the results of pollen analysis of fossil deposits. The potential pollen loading for Pinus sylvestris, Abies alba and Fagus sylvatica was modelled using simulated and actual vegetation maps, measured fall-speed values and pollen productivity estimates from the literature. The influx of fir pollen drops sharply with distance from the pollen source due to the high fall speed and moderate pollen productivity. The vast majority of Abies alba pollen is deposited within less than 50 m of the sampling site and a major proportion within 100 m. For beech the corresponding numbers would be 300 and 1,800 m, and for pine 1,000 and 4,500 m. The observed mean pollen accumulation rate (PAR) values for Pinus and Fagus were ca. 5,800 and 1,100 grains cm−2 year−1, respectively. In the case of Abies, the mean annual PAR for the whole region is ca. 700 grains cm−2 year−1. In SE Poland the regional signal is represented by PARs of Abies alba <200 grains cm−2 year−1 and of Fagus sylvatica <500 grains cm−2 year−1. The local presence/absence threshold values for Abies alba, Fagus sylvatica and Pinus sylvestris are >1,000 grains cm−2 year−1, >2,000 grains cm−2 year−1 and >3,500 grains cm−2 year−1 respectively.