Zobrazeno 1 - 10
of 131
pro vyhledávání: '"Juha, Heikkinen"'
Autor:
Kari T. Korhonen, Minna Räty, Helena Haakana, Juha Heikkinen, Juha-Pekka Hotanen, Mikko Kuronen, Juho Pitkänen
Publikováno v:
Silva Fennica, Vol 58, Iss 5 (2024)
In 2019–2023 the 13th Finnish National Forest Inventory (NFI) was implemented by measuring a total of 62 266 sample plots across the country. The methodology of the sampling and measurements was similar as in the previous inventory, but the proport
Externí odkaz:
https://doaj.org/article/80cafdfdf28c45fb8a4b8b06a6bd3b62
Publikováno v:
ISPRS Open Journal of Photogrammetry and Remote Sensing, Vol 8, Iss , Pp 100036- (2023)
Forest characteristics vary largely at the regional level and in smaller geographic areas in Finland. The amount of greenhouse gas emissions is related to changes in biomass and the soil type (e.g. upland soils vs. peatlands). In this paper, estimati
Externí odkaz:
https://doaj.org/article/f1132872817a4c1788ebef28d72e9425
Publikováno v:
International Journal for Parasitology: Parasites and Wildlife, Vol 17, Iss , Pp 205-210 (2022)
In Finland, free-ranging Eurasian lynx (Lynx lynx) population has grown from 30 to 40 individuals to 2800 individuals since the species became partly protected in 1962. Changes in host population size are known to have an impact on host-parasite dyna
Externí odkaz:
https://doaj.org/article/9c0736314ec14e399db76cc720cb28e0
Publikováno v:
Water Science and Technology, Vol 84, Iss 8, Pp 2014-2027 (2021)
Membrane-based concept comprising microfiltration and nanofiltration pre-treatments, reverse osmosis pre-concentration, and membrane distillation used for final concentration was applied for producing purified and concentrated recycled deicing fluid.
Externí odkaz:
https://doaj.org/article/757365a9f45d4b7ab6a72fa53d8f2efc
Publikováno v:
Water Science and Technology, Vol 84, Iss 6, Pp 1389-1402 (2021)
Intense pressure on water resources has led to efforts to reuse reclaimed processing wastewater in the food industry. There are tight rules for water quality, but efficient separation technologies such as reverse osmosis possess good possibilities fo
Externí odkaz:
https://doaj.org/article/3e5e2948e7b74445abcec056d57c60a5
Publikováno v:
Forest Ecosystems, Vol 7, Iss 1, Pp 1-17 (2020)
Abstract Background The local pivotal method (LPM) utilizing auxiliary data in sample selection has recently been proposed as a sampling method for national forest inventories (NFIs). Its performance compared to simple random sampling (SRS) and LPM w
Externí odkaz:
https://doaj.org/article/6ea7cf2429644676b710ec7f8887c420
Publikováno v:
Membranes, Vol 12, Iss 12, p 1233 (2022)
One option for new nitrogen sources is industrial liquid side streams containing ammonium nitrogen (NH4-N). Unfortunately, NH4-N often exists in low concentrations in large water volumes. In order to achieve a highly concentrated NH4-Nsolution, scala
Externí odkaz:
https://doaj.org/article/c86191713bba4081b94740490d4017c7
Publikováno v:
Silva Fennica, Vol 55, Iss 4 (2021)
Pulpwood arriving at the mills is mainly measured by weighing. In the loading phase of forwarding and trucking, timber is weighed using scales mounted in the grapple loader. The measured weight of timber is converted into volume using a conversion fa
Externí odkaz:
https://doaj.org/article/d055b7967b4f4625b26ded9e0c68c7fc
Autor:
Kari Korhonen, Arto Ahola, Juha Heikkinen, Helena Henttonen, Juha-Pekka Hotanen, Antti Ihalainen, Markus Melin, Juho Pitkänen, Minna Räty, Maria Sirviö, Mikael Strandström
Publikováno v:
Silva Fennica, Vol 55, Iss 5 (2021)
We describe the methodology applied in the 12th national forest inventory of Finland (NFI12) and describe the state of Finlandâs forests as well as the development of some key parameters since 1920s. According to the NFI12, the area of forestry land
Externí odkaz:
https://doaj.org/article/59de51b674fd43d9841210d21dd44436
Publikováno v:
Metsätieteen aikakauskirja, Vol 2020 (2020)
Externí odkaz:
https://doaj.org/article/7b66af01630a406ca96e626dd2978c2c