کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4425428 | 1309104 | 2011 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Carbon exchange between ecosystems and atmosphere in the Czech Republic is affected by climate factors Carbon exchange between ecosystems and atmosphere in the Czech Republic is affected by climate factors](/preview/png/4425428.png)
By comparing five ecosystem types in the Czech Republic over several years, we recorded the highest carbon sequestration potential in an evergreen Norway spruce forest (100%) and an agroecosystem (65%), followed by European beech forest (25%) and a wetland ecosystem (20%). Because of a massive ecosystem respiration, the final carbon gain of the grassland was negative. Climate was shown to be an important factor of carbon uptake by ecosystems: by varying the growing season length (a 22-d longer season in 2005 than in 2007 increased carbon sink by 13%) or by the effect of short- term synoptic situations (e.g. summer hot and dry days reduced net carbon storage by 58% relative to hot and wet days). Carbon uptake is strongly affected by the ontogeny and a production strategy which is demonstrated by the comparison of seasonal course of carbon uptake between coniferous (Norway spruce) and deciduous (European beech) stands.
► Highest carbon sequestration potential in evergreen Norway spruce forest (100%) and an agroecosystem (65%), followed by European beech forest (25%) and a wetland ecosystem (20%).
► The final carbon gain of the grassland was negative (massive ecosystem respiration).
► Climate is important factor of net primary productivity.
► Carbon uptake is strongly affected by the ontogeny and a production strategy of ecosystem.
Journal: Environmental Pollution - Volume 159, Issue 5, May 2011, Pages 1035–1039