Results 31 to 40 of about 17,761 (305)

Estimating the Aboveground Biomass of Various Forest Types with High Heterogeneity at the Provincial Scale Based on Multi-Source Data

Remote Sensing, 2023
It is important to improve the accuracy of models estimating aboveground biomass (AGB) in large areas with complex geography and high forest heterogeneity.
Tianbao Huang, Guanglong Ou, Yong Wu, Xiaoli Zhang, Zihao Liu, Hui Xu, Xiongwei Xu, Zhenghui Wang, Can Xu   +8 more
doaj   +1 more source

Two new species of the Phanaeus endymion species group (Coleoptera, Scarabaeidae, Scarabaeinae)

ZooKeys, 2017
Phanaeus bravoensis sp. n. is described from the coniferous-oak forests in the state of Guerrero, and P. huichol sp. n. from coniferous-oak forests and cloud forests in Jalisco and Nayarit. The new species are closely related to P.
Victor Moctezuma, José Luis Sánchez-Huerta, Gonzalo Halffter   +2 more
doaj   +3 more sources

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

American Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording, Erik W. Ertsgaard, David E. Giblin, Iris H. Dimpsey, Owen B. Bard   +4 more
wiley   +1 more source

Investigating the Balance Between Timber Harvest and Productivity of Global Coniferous Forests Under Global Change

, 2000
A widely used assumption in forestry is that the demand for timber will exceed the maximum level available from forests on a sustainable basis. In this study, measurements of extracted timber and modeled forest productivity were used to investigate the ...
Churkina, Galina
core   +2 more sources

A phytosociological survey of the boreal forest (Vaccinio-Piceetea) in North America

, 1998
A survey of syntaxa of vegetation of North American boreal forests (class Vaccinio-Piceetea) is presented. This phytosociological survey, carried out combining the Braun-Blanquet method with numerical syntaxonomical analyses (cluster and correspondence ...
Peinado, M., Cruz Rot, Marcelino de la, Aguirre, J.L.   +2 more
core   +1 more source

Optimized Selenium‐Doped Nanocomposites for Enhanced Polymer Gel Performance in Permeability Reduction

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Excessive water production in mature oil fields necessitates robust shut‐off treatments, yet conventional polymer gels often fail under high‐temperature and high‐salinity conditions. This study aims to enhance gel thermal stability and mechanical strength by incorporating selenium‐doped Ag/AgO–ZnO nanocomposites synthesized via a novel green ...
Fadhil F. Sead, Farag M. A. Altalbawy, M. Sudhakara Reddy, Badri Narayan Sahu, Sridharan Sundharam, Sanjeev Kumar, Atreyi Pramanik, Aseel Smerat, Fatimah Pashtun   +8 more
wiley   +1 more source

Vegetation surveys in the circumboreal coniferous forests: A review

, 2002
As an introduction to the special issue "Vegetation of Circumboreal Coniferous Forests", a brief history is provided of the development and present state of floristic vegetation surveys of the boreal and mountain coniferous forests of Europe, northern ...
Spribille, T., Chytry, M., Toby Spribille, Milan Chytrý   +3 more
core   +1 more source

Enabling the study of gene function in gymnosperms: Virus‐induced gene silencing in Ephedra tweedieana

Applications in Plant Sciences, EarlyView.
Abstract Premise As the sister clade to angiosperms, extant gymnosperms are crucial for reconstructing ancestral gene regulatory networks in seed plants. This highlights the need for model systems representing each of their distinct lineages. However, tools to quickly and effectively investigate gene function in gymnosperms are still limited due to the
Anthony G. K. Garcia, Jo Trang Bùi, Todd P. Michael, Stefanie M. Ickert‐Bond, Verónica S. Di Stilio   +4 more
wiley   +1 more source

Analysis of vertical differentiation of vegetation in Taishan World Heritage site based on cloud model

Scientific Reports
While the forests on Mount Taishan are predominantly man-made, there is a notable vertical variation in vegetation. This study employs the method of cloud model, quantifying uncertainty (fuzziness and randomness) of things.
Zhe Wang, Fang Han, Chuanrong Li, Weixing Shen, Zhijun Yang, Kun Li, Qi Yao   +6 more
doaj   +1 more source

Spatiotemporal Modeling of Coniferous Forests Dynamics along the Southern Edge of Their Range in the Central Russian Plain

Remote Sensing, 2021
Forests with predominance of Norway spruce (Picea abies (L.) H. Karst.) and Scots pine (Pinus sylvestris L.) within the hemiboreal zone are considered as secondary communities formed under long-term human activity (logging, plowing, fires and ...
Tatiana Chernenkova, Ivan Kotlov, Nadezhda Belyaeva, Elena Suslova   +3 more
doaj   +1 more source