Zobrazeno 1 - 10
of 249
pro vyhledávání: '"Lang Mait"'
Publikováno v:
Metsanduslikud Uurimused, Vol 79, Iss 1, Pp 21-36 (2024)
Environmental monitoring networks such as the Integrated Carbon Observation System (ICOS) in Europe, the National Ecological Observatory Network (NEON) in the U.S., or the Terrestrial Ecosystem Research Network (TERN) in Australia deploy different sa
Externí odkaz:
https://doaj.org/article/98aeca864ad245d5a580c89713bce06c
Autor:
Lang Mait, Praks Jaan
Publikováno v:
Metsanduslikud Uurimused, Vol 77, Iss 1, Pp 90-96 (2022)
The view angle range of Sentinel-1 SAR in the Interferometric Wide swath (IW) measurement mode is 29.1° – 46.0°. The dependence of backscatter on the arbitrary local incidence angle is usually corrected using a linear regression model where the i
Externí odkaz:
https://doaj.org/article/fa0048cc2ede4f9593c62ad1ad734056
Autor:
Lang Mait, Kuusk Andres, Kaha Mihkel, Pisek Jan, George Jan-Peter, Kiviste Andres, Laarmann Diana, Türk Kristina, Arumäe Tauri
Publikováno v:
Metsanduslikud Uurimused, Vol 74, Iss 1, Pp 112-122 (2021)
2007. aastal rajati Järvseljal kolm ühe hektari suurust katseala, kui kaardistati ja mõõdeti üle kõik puud simulatsioon eksperimentide korraldamiseks (Kuusk, et al., 2013; Widlowski et al., 2015). Need kolm puistut (vt fotod lisas 1) esindavad
Externí odkaz:
https://doaj.org/article/9c067d2ba75c4cf19f19bc4115331222
Publikováno v:
Metsanduslikud Uurimused, Vol 73, Iss 1, Pp 125-135 (2021)
Horizontal visibility v in hemiboreal forest transects was measured in the field and then predicted, both from forest inventory (FI) data and from airborne laser scanning (ALS) data. Stand density N and mean diameter at breast height D were used as a
Externí odkaz:
https://doaj.org/article/026c93f15d7f43fca71f98d2347cdbd1
Publikováno v:
Metsanduslikud Uurimused, Vol 73, Iss 1, Pp 98-106 (2021)
Global change-type droughts will become more frequent in the future and threaten forest ecosystems around the globe. A large proportion of the Estonian forest sector is currently subject to artificial drainage, which could probably lead to negative f
Externí odkaz:
https://doaj.org/article/465a7462a23d464abdac529ccaf7586c
Autor:
Lang Mait, Sims Allan, Pärna Kalev, Kangro Raul, Möls Märt, Mõistus Marta, Kiviste Andres, Tee Mati, Vajakas Toivo, Rennel Mattias
Publikováno v:
Metsanduslikud Uurimused, Vol 73, Iss 1, Pp 77-97 (2021)
Since 1999, Estonia has conducted the National Forest Inventory (NFI) on the basis of sample plots. This paper presents a new module, incorporating remote-sensing feature variables from airborne laser scanning (ALS) and from multispectral satellite i
Externí odkaz:
https://doaj.org/article/9834ad780a8046ad869eb36b79daf810
Autor:
Arumäe Tauri, Lang Mait
Publikováno v:
Metsanduslikud Uurimused, Vol 73, Iss 1, Pp 136-144 (2021)
In this summary, we give an overview of the application of airborne laser scanning (ALS) data for predicting the main forest inventory variables in Estonia. When Estonia being one of the few countries with wall-to-wall ALS availability, the need for
Externí odkaz:
https://doaj.org/article/a26cedda1d754b459f7cb659f083d765
Publikováno v:
Journal of Landscape Ecology, Vol 12, Iss 3, Pp 53-69 (2019)
Habitats are important indicators of biodiversity in their own right, as well as being linked to species, hence their widespread use in reporting on nature conservation planning and policy. For reporting consistent mapping and monitoring habitat exte
Externí odkaz:
https://doaj.org/article/417d1e6906db49a8975845cc02e0c06c
Publikováno v:
Metsanduslikud Uurimused, Vol 71, Iss 1, Pp 30-47 (2019)
Externí odkaz:
https://doaj.org/article/fc4c2ad473c94fed945fd6548f9e77a5
Publikováno v:
Metsanduslikud Uurimused, Vol 70, Iss 1, Pp 80-87 (2019)
Hemispherical photography provides permanent records of forest canopy structure. We analysed digital hemispherical images taken during the period of 2007–2018 in a mature silver birch stand located in Järvselja, Estonia. The stand was thinned in 2
Externí odkaz:
https://doaj.org/article/7077c52b4d7948faa87929a685b3e97b