Výsledky vyhledávání - "Risto Hiukka"

Microbial community structure and characteristics of the organic matter in soils under Pinus sylvestris, Picea abies and Betula pendula at two forest sites

Autor: Susan J. Grayston, Risto Hiukka, Aino Smolander, Outi Priha, Taina Pennanen

Publikováno v: Biology and Fertility of Soils. 33:17-24

Microbial biomass C (Cmic), C mineralization rate, phospholipid fatty acid (PLFA) profiles and community level physiological profiles (CLPPs) using Biolog were determined from the humus and mineral soil layers in adjacent stands of Scots pine (Pinus

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::966ade33f046c0c904df0554784e70b8
https://doi.org/10.1007/s003740000281

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A multivariate approach to the analysis of pine needle samples using NIR

Autor: Risto Hiukka

Publikováno v: Chemometrics and Intelligent Laboratory Systems. 44:395-401

Near infrared reflectance (NIR) spectroscopy was used to the determine the concentrations of nitrogen, starch and various carbohydrates in milled Scots pine needle samples. A multivariate calibration using partial least square regression (PLS) was us

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dd6a41c45147dc1046a155dd60439522
https://doi.org/10.1016/s0169-7439(98)00067-7

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Near-infrared characteristics of forest humus are correlated with soil respiration and microbial biomass in burnt soil

Autor: Hannu Fritze, Petri Järvinen, Risto Hiukka

Publikováno v: Biology and Fertility of Soils. 18:80-82

Near-infrared spectroscopy and soil physicochemical determinations (pHH2O, organic matter content, total C content, NH inf4 sup+ , total N content, cation-exchange capacity, and base saturation) were used to characterize fire-or wood ash-treated humu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9d8098383b99cf1924989e06d7165b1a
https://doi.org/10.1007/bf00336449

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Susceptibility of defoliated Scots pine to spontaneous and induced attack by Tomicus piniperda and Tomicus minor

Autor: Martti Varama, Pekka Niemelä, Risto Hiukka, Bo Långström, Erkki Annila

Publikováno v: Silva Fennica, Vol 33, Iss 2 (1999)

In 1990â1991, Diprion pini extensively defoliated Scots pine (Pinus sylvestris L.) trees in Lauhanvuori National Park in southwestern Finland. Many trees lost all their foliage, while others had ca. 10% foliage left after the second year of defo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a11533f73ef1da46312d03fa1036c8a2
https://doi.org/10.14214/sf.660

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