Results 41 to 50 of about 5,029 (227)

Kuusen uudistuminen erirakenteisessa metsässä – tapaustutkimus Etelä-Suomesta

open access: yes, 2004
TutkimusselosteSeloste artikkelista: Saksa, T. 2004. Regeneration process from seed crop to saplings – a case study in uneven-aged Norway spruce-dominated stands in southern Finland.
Saksa, Timo
core   +1 more source

Multi‐Elevation UAV‐Based Frequency Domain Electromagnetic Method for Data Calibration and Field Investigation

open access: yesWater Resources Research, Volume 61, Issue 9, September 2025.
Abstract The Frequency Domain Electromagnetic Induction method (FDEM) is an efficient tool for investigating the electrical conductivity (EC) distribution over relatively shallow depths. However, the handheld method of use recommended by manufacturers does not fully leverage the non‐invasive detection capabilities offered by FDEM devices. In this study,
Qinbo Cheng   +6 more
wiley   +1 more source

Kuusen istutus, luontainen uudistaminen ja näiden yhdistelmät kuusen uudistamisessa

open access: yesMetsätieteen aikakauskirja, 2008
Tutkimuksessa verrattiin kuusen istutuksen (istutustiheys 2 000 tainta ha), kuusen luontaisen uudistamisen ja näiden yhdistelmien antamaa uudistamistulosta äestäen muokatuilla tuoreen kankaan uudistusaloilla yhdeksän kasvukauden kuluttua ...
Timo Saksa, Jukka Nerg
doaj   +1 more source

Restoring Historic Forest Disturbance Frequency Would Partially Mitigate Droughts in the Central Sierra Nevada Mountains

open access: yesWater Resources Research, Volume 61, Issue 4, April 2025.
Abstract Forest thinning and prescribed fire are expected to improve the climate resilience and water security of forests in the western U.S., but few studies have directly modeled the hydrological effects of multi‐decadal landscape‐scale forest disturbance.
E. N. Boardman   +6 more
wiley   +1 more source

Perkauksen vaikutus männyn kylvö- ja luontaisen taimikon kehitykseen ja taimikonhoidon ajanmenekkiin

open access: yesMetsätieteen aikakauskirja, 2013
Tutkimuksessa tarkasteltiin erilaisten perkauskäsittelyiden (ei perkausta, reikäperkaus, täysperkaus, täysperkaus + mäntyjen harvennus) vaikutuksia männyn taimikon kehitykseen ja malleilla laskettuun työajanmenekkiin.
Jari Miina, Timo Saksa
doaj   +1 more source

Update of the Xylella spp. host plant database – Systematic literature search up to 30 June 2024

open access: yesEFSA Journal, Volume 23, Issue 2, February 2025.
Abstract This scientific report provides an update of the Xylella spp. host plant database, aiming to provide information and scientific support to risk assessors, risk managers and researchers dealing with Xylella spp. Upon a mandate of the European Commission, EFSA created and regularly updates a database of host plant species of Xylella spp.
European Food Safety Authority (EFSA)   +9 more
wiley   +1 more source

Effect of Forest Management Practices on Water Balance Across a Water–Energy Gradient in the Upper Kings River Basin, USA

open access: yesEcohydrology, Volume 18, Issue 1, January‐February 2025.
ABSTRACT Headwater watersheds and forests play a crucial role in ensuring water security for the western United States. Reducing forest biomass from the current overgrown forests can mitigate the severity and impact of wildfires and offer additional competing ecohydrological benefits.
Stefano Casirati   +3 more
wiley   +1 more source

Market analysis of coupled biochar and carbon credit production from wildfire fuel reduction projects in the western USA

open access: yesBiofuels, Bioproducts and Biorefining, Volume 18, Issue 5, Page 1226-1237, September/October 2024.
Abstract The investment potential for biochar production from low‐value forest biomass in the western USA is over USD 20 billion at current carbon prices. This investment could generate approximately 70 million carbon credits annual – roughly the same number currently generated globally by all forestry and agricultural carbon projects.
Micah Elias   +4 more
wiley   +1 more source

Henkilökohtainen matka nyky-Saksaan sen rikkaan historian kautta

open access: yesEnnen ja Nyt: Historian Tietosanomat
Kirja-arvostelu teoksesta: Koskelainen, Jukka: Viisi matkaa Saksan sieluun, Aviador, 2023, 340 s.
Kimmo Elo
doaj   +1 more source

Üks laenuline perekonnanime tüüp: nimed lõpuga -mees

open access: yesEesti ja Soome-ugri Keeleteaduse Ajakiri, 2020
Kirjutises esitletakse Eesti perekonnanimede tüüpi, kus nime lõpuosiseks on -mees. Perekonnanimede panekul 1822–1835 on nimesid lõpuga -mees (-mes) pandud rohkem kui 140 mõisas. Paljud neist on hääbunud, samas on seda tüüpi perekonnanimesid pandud/võetud
Marja Kallasmaa, Fred Puss
doaj   +1 more source

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