斯洛伐克永久草原地上、地下生物量和碳储量

M. Kizeková, R. Kanianska, L. Jancová, J. Čunderlík, Z. Dugátová, J. Makovníková
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引用次数: 2

摘要

摘要/ Abstract摘要:本文旨在监测斯洛伐克5种草地类型的干物质生物量产量和地上、地下生物量碳储量:i)低地过播草地ii)低地干草草甸,iii)中温草地,iv)山地干草草甸,v)废弃草地。两个种植季的平均地表和地下生物量差异显著。根据不同草地类型的气候条件和植物组成,干物质含量变化范围分别为2.18 ~ 7.86 t/ha和9.64 ~ 22.67 t/ha。因此,这也导致了地上和地下生物量的碳储量。总体而言,地上生物量的平均碳储量为1.56 t/ha(24%),地下生物量的平均碳储量为4.83 t/ha(76%)。并对各类型草地的植物组成进行了描述。斯洛伐克喀斯特低地干草草甸植物种类最多(55种),斯洛伐克东部高地过度播种草地植物种类最少(23种)。研究表明,半天然草地生境和改良草地都是重要的碳汇,在减缓全球气候变化中发挥着关键作用。
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Above and Below Ground Biomass and Carbon Stock in Permanent Grasslands of Slovakia
Abstract This paper aimed to monitory the dry matter biomass production and carbon stocks of above-and below-ground biomass in five types of grasslands in Slovakia: i) lowland oversowed pasture ii) lowland hay meadows, iii) mesophilous pasture, iv) mountain hay meadows, v) abandoned grassland. Averaged over two cropping seasons the total above-and below-ground biomass differed significantly across the monitored grasslands. It ranged respectively from 2.18 to 7.86 t/ha and from 9.64 to 22.67 t/ha dry matter depending on the pedoclimatic condition and the botanical composition of each grassland type. Consequently, this resulted also in the carbon stocks in above-and below-ground biomass. Generally, the mean carbon stocks were 1.56 t/ha for above-ground biomass (24%) and 4.83 t/ha for below-ground biomass (76%). The botanical composition for all the grassland types was also described. The highest number of plant species (55) was observed in lowland hay meadow located in Slovak Karst, the lowest one (23) for the oversowed grassland located in Eastern Slovak Upland. This monitoring paper showed that semi-natural grassland habitats and improved grasslands as well are an important carbon sink, and they can play a key role in global climate change mitigation.
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