Results 21 to 30 of about 17,761 (305)

Review of historical outbreaks of the nun moth with respect to host tree species

Journal of Forest Science, 2015
The nun moth (Lymantria monacha /L./) is a polyphagous pest feeding on coniferous and deciduous trees in Eurasia. This paper, based on a literature review, presents an overview of the nun moth outbreaks in Czech forests from 1784 to 2010 in terms of host
O. Nakládal, H. Brinkeová
doaj   +1 more source

Carbon budget of different forests in China estimated by an individual-based model and remote sensing.

PLoS ONE, 2023
Forests play a key role in the regional or global carbon cycle. Determining the forest carbon budget is of great significance for estimating regional carbon budgets and formulating forest management policies to cope with climate change.
Junfang Zhao, Jinlong Ai, Yujie Zhu, Ruixi Huang, Huiwen Peng, Hongfei Xie   +5 more
doaj   +1 more source

Effects of a broadleaf-oriented transformation of coniferous plantations on the hydrological characteristics of litter layers in subtropical China

Global Ecology and Conservation, 2021
As a unique structural level of forest ecosystems, the litter layer has significant ecological effects on soil and water conservation. The broadleaf-oriented transformation of coniferous forests is an effective approach for reducing the degradation of ...
Yunxing Bai, Yunchao Zhou, Jiaojiao Du, Xunyuan Zhang, Ni Di   +4 more
doaj   +1 more source

Dissolved organic carbon and nitrogen leaching from Scots pine, Norway spruce and silver birch stands in southern Sweden [PDF]

, 2011
The effects of three common tree species – Scots pine, Norway spruce and silver birch – on leaching of dissolved organic carbon and dissolved nitrogen were studied in an experimental forest with podzolised soils in southern Sweden. We analyzed soil water
Mats Fröberg, Kleja, Dan Berggren, Karna Hansson, Hansson, Karna, Dan Berggren Kleja, Ghasem Alavi, Alavi, Ghasem, Fröberg, Mats   +7 more
core   +1 more source

Assessing the Accuracy of Forest Phenological Extraction from Sentinel-1 C-Band Backscatter Measurements in Deciduous and Coniferous Forests

Remote Sensing, 2022
Satellite remote sensing is an important method for forest phenological studies at continental or global scales. Sentinel-1 (S1), a polar orbit satellite with a spatial resolution of 10 m, provides an opportunity to observe high-resolution forest ...
Yuxiang Ling, Shiwen Teng, Chao Liu, Jadunandan Dash, Harry Morris, Julio Pastor-Guzman   +5 more
doaj   +1 more source

Mountain coniferous forests, refugia and butterflies [PDF]

Molecular Ecology, 2008
AbstractThe boreal coniferous forests form the most extended vegetation zone of the Northern Hemisphere. As opposed to North America, they are disconnected from the mountain coniferous forests in Europe, because of the dominant east–west direction of the mountain chains.
openaire   +2 more sources

Towards accurate individual tree parameters estimation in dense forest: optimized coarse-to-fine algorithms for registering UAV and terrestrial LiDAR data

GIScience & Remote Sensing, 2023
Accurate quantification of individual tree parameters is vital for precise forest inventory and sustainable forest management. However, in dense forests, terrestrial laser scanning (TLS), which can provide accurate and detailed forest structural ...
Yuting Zhao, Jungho Im, Zhen Zhen, Yinghui Zhao   +3 more
doaj   +1 more source

An Effective Method for Snow-Cover Mapping of Dense Coniferous Forests in the Upper Heihe River Basin Using Landsat Operational Land Imager Data

Remote Sensing, 2015
The Normalized Difference Snow Index (NDSI) is an effective index for snow-cover mapping at large scales, but in forested regions the identification accuracy for snow using the NDSI is low because of forest cover effects. In this study, typical evergreen
Xiao-Yan Wang, Jian Wang, Zhi-Yong Jiang, Hong-Yi Li, Xiao-Hua Hao   +4 more
doaj   +1 more source

Images of forests in patriotic songs and forest advertisements

Silva Fennica, 1987
The article compares forest images in provincial and patriotic songs and in forest advertisements by banks and insurance companies. In songs, coniferous forests represent the primaeval nature and broadleaved forests represent culture.
Julkunen, Eero, Kuusamo, Altti
doaj   +1 more source

The estimation of aboveground biomass and nutrient pools of understorey plants in closed Norway spruce forests and on clearcuts

, 2010
The estimation model PhytoCalc allows a non-destructive quantification of dry weight and nutrient pools of understorey plants in forests by using the relationship between species biomass, cover and mean shoot length.
Wolfgang Schmidt, Bernhardt-Roemermann, Markus, Heinrichs, Steffi, Steffi Heinrichs, Schmidt, Wolfgang, Markus Bernhardt-Römermann, Bernhardt-Römermann, Markus   +6 more
core   +1 more source