Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Aki Pitkänen"'
Publikováno v:
European Journal of Soil Science. 63:798-807
The total area of boreal peatlands is about 3.5 million km2 and they are estimated to contain 15–30% of the global soil carbon (C) storage. In Finland, about 60 000 km2, or 60% of the original peatland area, has been drained, mainly for forestry im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0c73acf91e919e7348e4789fc4d3f81
https://doi.org/10.1111/j.1365-2389.2012.01499.x
https://doi.org/10.1111/j.1365-2389.2012.01499.x
Publikováno v:
Forest Ecology and Management. 284:100-106
We studied organic matter accumulation dynamics in peatland surface soil, using the root collar depth of tree-ring aged Scots pine seedlings for dating the base level of quantitative soil samples. The data consisted of 222 samples collected from 47 f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::757480fcc8f60d583fc6dd5d9055cbd5
https://doi.org/10.1016/j.foreco.2012.07.040
https://doi.org/10.1016/j.foreco.2012.07.040
Publikováno v:
Forest Ecology and Management. 255:522-529
Recently introduced modifications to timber harvesting, such as leaving retention trees and applying prescribed burning, are likely to have an influence on the occurrence of pests affecting regeneration, such as pine weevils ( Hylobius spp.). We anal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7894c9bee68a4a7f6e787919577a46bf
https://doi.org/10.1016/j.foreco.2007.09.024
https://doi.org/10.1016/j.foreco.2007.09.024
Publikováno v:
Forest Ecology and Management. 176:305-319
The long-term fire history of the spruce-dominated forests of the Ulvinsalo strict nature reserve in Kuhmo, eastern Finland (63°58′N, 30°22′E), was studied by means of charcoal particle layer records and macroscopic charcoal particles in peat a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73ab285cd4a9082eadbf21fa8122a1a9
https://doi.org/10.1016/s0378-1127(02)00291-8
https://doi.org/10.1016/s0378-1127(02)00291-8
Publikováno v:
Canadian Journal of Forest Research. 32:1875-1880
Local fire history covering the entire Holocene period at a dry forest site in North Karelia, eastern Finland (ca. 63°07' N, 30°44' E), was reconstructed on the basis of visible charcoal layers from peat deposits of a small mire basin. Seven points
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3cc2b5c595d8856d4ccd5ede4c8e043
https://doi.org/10.1139/x02-103
https://doi.org/10.1139/x02-103
Publikováno v:
The Holocene. 12:353-362
The pollen stratigraphy of an ombrotrophic patterned ridge-hollow raised bog in the Salym-Yugan Mire Area in boreal West Siberia (60°109N, 72°509E) covers the entire Holocene period. Pollen data from three parallel peat cores suggest that, contrary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54a21783fdb8faa2975bebd328a58ab7
https://doi.org/10.1191/0959683602hl533rp
https://doi.org/10.1191/0959683602hl533rp
Publikováno v:
The Holocene. 11:599-605
Valid reconstruction of long-term forest fire histories from individual peat cores usually fails, for a number of reasons, even though visible charcoal horizons in peat are indisputable evidence of local or in-situ fires. Both the dating and reliabil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec75a950fab5fdd2916dd6ae29514595
https://doi.org/10.1191/095968301680223558
https://doi.org/10.1191/095968301680223558
Publikováno v:
Global Biogeochemical Cycles. 15:285-296
The rates of carbon (C) accumulation and the role of fires in the C dynamics of the major types of boreal West Siberian mires were investigated. Detailed analysis of dry bulk density, C, and N concentration and age of the peat layers were used to det
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e326a54af4430efcd51c692d9a8b33d2
https://doi.org/10.1029/2000gb001312
https://doi.org/10.1029/2000gb001312
Autor:
Aki Pitkänen
Publikováno v:
The Holocene. 10:221-228
The fire history of a dry Boreal forest site in eastern Finland before settlement in the area was studied by means of charcoal and pollen analysis of annually laminated lake sediments. The average estimated local fire interval of 70-80 years correspo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b4c4ab6a1c0e6a536c952375b2e994d
https://doi.org/10.1191/095968300675342139
https://doi.org/10.1191/095968300675342139
Publikováno v:
The Holocene. 9:559-567
Dendrochronological data and microscopic charcoal particle series from annually laminated lake sediment covering the past 520 years were compared. Slash-and-burn cultivation had been practised in the area (63°109N, 30°589E) for about 300 years duri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2cb65d3cb9c61f71c1ef725e2c508f1e
https://doi.org/10.1191/095968399670319510
https://doi.org/10.1191/095968399670319510