Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Robbie A. Hember"'
Autor:
Robbie A. Hember
Publikováno v:
Data in Brief, Vol 17, Iss , Pp 134-140 (2018)
This report describes the North American Climate Integration and Diagnostics – Nitrogen Deposition Version 1 (NACID-NDEP1) database. The database contains estimates of annual total nitrogen (N) deposition for the purpose of supporting terrestrial e
Externí odkaz:
https://doaj.org/article/4c5872d3adae4cada298a97b32ed0545
Publikováno v:
Hydrology, Vol 4, Iss 1, p 5 (2017)
Given the widespread ecological implications that would accompany any significant change in evaporative demand of the atmosphere, this study investigated spatial and temporal variation in several accepted expressions of potential evaporation (PE). Th
Externí odkaz:
https://doaj.org/article/00fe99264c6442d8bfb268f2ad7ff009
Publikováno v:
Journal of Geophysical Research: Biogeosciences. 124:2460-2480
Publikováno v:
Forest Ecology and Management. 408:157-173
New initiatives are emerging to rehabilitate vast expanses of lodgepole pine (Pinus contorta var. latifolia) recently affected by insect outbreaks and wildfires across western North America. By assessing potential long-term changes in productivity, e
Publikováno v:
Global Biogeochemical Cycles. 31:134-158
Repeated measurements of tree biomass at field plots describe recovery from disturbances, sampling artifacts, and potential effects of environmental change on forest ecosystems. Challenges in differentiating between intrinsic and extrinsic sources of
By taking core samples, dendroecological studies can reconstruct radial growth over the lifespan of a tree, providing a valuable way to estimate the sensitivity of tree productivity to environmental change. With increasing prevalence of such studies
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1aefbb97c5985f3f717605d1affc107
https://www.biogeosciences-discuss.net/bg-2015-200/
https://www.biogeosciences-discuss.net/bg-2015-200/
Autor:
Robbie A. Hember, Werner A. Kurz
Publikováno v:
Forests; Volume 9; Issue 1; Pages: 21
Forests, Vol 9, Iss 1, p 21 (2018)
Forests, Vol 9, Iss 1, p 21 (2018)
Environmental conditions and silviculture fundamentally alter the metabolism of individual trees and, therefore, need to be studied at that scale. However, changes in forest biomass density (Mg C ha−1) may be decoupled from changes in growth (kg C
Autor:
David Price, Kuo-Hsien Chang, Céline Boisvenue, Jing M. Chen, Edward H. Hogg, Werner A. Kurz, T. Andrew Black, Chaoyang Wu, Robbie A. Hember, Alemu Gonsamo
Publikováno v:
Agricultural and Forest Meteorology. :142-154
Drought-related dieback of aspen-dominated woodland has been a persistent and possibly increasing phenomenon over recent decades in the southern boreal forests of western Canada. The Integrated BIosphere Simulator (IBIS) dynamic vegetation model was
Autor:
Jing M. Chen, Jane Liu, Werner A. Kurz, Alemu Gonsamo, David Price, Chaoyang Wu, Céline Boisvenue, Robbie A. Hember, Kuo-Hsien Chang
Publikováno v:
Journal of Geophysical Research: Biogeosciences. 118:1546-1560
[1] We assess Canada's gross primary productivity (GPP) and net primary productivity (NPP) using boreal ecosystem productivity simulator (BEPS) at 250 m spatial resolution with improved input parameter and driver fields and phenology and nutrient rel
Publikováno v:
Global change biology. 23(4)
Accounting for water stress-induced tree mortality in forest productivity models remains a challenge due to uncertainty in stress tolerance of tree populations. In this study, logistic regression models were developed to assess species-specific relat