Results 31 to 40 of about 210,901 (351)

Comparison of forest attributes derived from two terrestrial lidar systems. [PDF]

, 2013
Terrestrial lidar (TLS) is an emerging technology for deriving forest attributes, including conventional inventory and canopy characterizations. However, little is known about the influence of scanner specifications on derived forest parameters.
Astrup, Rasmus, Coates, K David, Ducey, Mark J., Larson, Bruce C, Pretzsch, Hans, Seifart, Stefan   +5 more
core   +2 more sources

Tree mortality during long-term droughts is lower in structurally complex forest stands

Nature Communications, 2023
Increasing drought frequency and severity in a warming climate threaten forest ecosystems with widespread tree deaths. Canopy structure is important in regulating tree mortality during drought, but how it functions remains controversial.
Qin Ma, Yanjun Su, Chunyue Niu, Qin Ma, Tianyu Hu, Xiangzhong Luo, Xiaonan Tai, Tong Qiu, Yao Zhang, Roger C. Bales, Lingli Liu, Maggi Kelly, Qinghua Guo   +12 more
doaj   +1 more source

Three-Dimensional Morphological Measurement Method for a Fruit Tree Canopy Based on Kinect Sensor Self-Calibration

Agronomy, 2019
Perception of the fruit tree canopy is a vital technology for the intelligent control of a modern standardized orchard. Due to the complex three-dimensional (3D) structure of the fruit tree canopy, morphological parameters extracted from two-dimensional (
Haihui Yang, Xiaochan Wang, Guoxiang Sun
doaj   +1 more source

A three year study of the phenology of insect larvae (Coleoptera, Diptera) in water-filled tree holes in the canopy of a beech tree

European Journal of Entomology, 2018
Water-filled tree holes are abundant microhabitats in forests worldwide and are inhabited by specialized communities of invertebrates. Despite their importance, the temporal dynamics of communities within and between years are largely unknown.
Martin M. GOSSNER
doaj   +1 more source

The Value of Neighborhood and Property Tree Canopy Across Different Property Values for Residential Resales in San Antonio, Texas

Journal of Sustainable Real Estate
Previous research shows that neighborhood trees promote housing premiums, but property tree may not. This paper expands the research by measuring the value that property and neighborhood tree canopy add to home sale price. Rather than treating the entire
Ryun Jung Lee, Thomas A. Thomson
doaj   +1 more source

Urban Tree Canopy Mapping Based on Double-Branch Convolutional Neural Network and Multi-Temporal High Spatial Resolution Satellite Imagery

Remote Sensing, 2023
Accurate knowledge of urban forest patterns contributes to well-managed urbanization, but accurate urban tree canopy mapping is still a challenging task because of the complexity of the urban structure.
Shuaiqiang Chen, Meng Chen, Bingyu Zhao, Ting Mao, Jianjun Wu, Wenxuan Bao   +5 more
doaj   +1 more source

Evapotranspiration and water use efficiency in relation to climate and canopy nitrogen in U.S. forests [PDF]

, 2016
Understanding relations among forest carbon (C) uptake and water use is critical for predicting forest-climate interactions. Although the basic properties of tree-water relations have long been known, our understanding of broader-scale patterns is ...
Anav, Atkin, Badeck, Baldocchi, Baldocchi, Baldocchi, Baldocchi, Baldocchi, Barbour, Barbour, Barbour, Barnard, Beer, Belmecheri, Berry, Betts, Bolster, Bonan, Bonan, Bright, Brugnoli, Buckley, Canadell, Carnicer, Catovsky, Cernusak, Chen, Clark, Craig, Davin, Desai, Dickinson, Dongmann, Donovan, Dore, Evans, Ewers, Farquhar, Farquhar, Farquhar, Farquhar, Farquhar, Federer, Fernández-Martínez, Fernández-Martínez, Flanagan, Flexas, Gessler, Gessler, Grams, Grassi, Guerrieri, Heimann, Jennings, Keenan, Keitel, Kergoat, Kunert, Law, Lee, Leonelli, Lepine, Liang, Loescher, Luyssaert, Lévesque, Magnani, Martin, Martínez-Vilalta, Meinzer, Meir, Michelot, Moffat, Monson, Moreno-Gutiérrez, Niinemets, Niu, Ollinger, Ollinger, Pan, Pan, Papale, Paquette, Ponton, Post, Potter, Powell, Reichstein, Reichstein, Renninger, Richardson, Ripullone, Roden, Roden, Roden, Roman, Sage, Scartazza, Scheidegger, Schulze, Seibt, Siegwolf, Smith, Smith, Song, Sullivan, Tang, Tang, Tardieu, Valentini, Valentini, Wang, Warren, Wehr, Wright, Xiao, Xiao, Xu, Zhang, Zhu   +119 more
core   +3 more sources

Comprehensive monitoring of Bangladesh tree cover inside and outside of forests, 2000–2014

Environmental Research Letters, 2017
A novel approach for satellite-based comprehensive national tree cover change assessment was developed and applied in Bangladesh, a country where trees outside of forests play an important role in the national economy and carbon sequestration. Tree cover
P Potapov, B N Siddiqui, Z Iqbal, T Aziz, B Zzaman, A Islam, A Pickens, Y Talero, A Tyukavina, S Turubanova, M C Hansen   +10 more
doaj   +1 more source

TREE STEM AND CANOPY BIOMASS ESTIMATES FROM TERRESTRIAL LASER SCANNING DATA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
In this study an automatic method for estimating both the tree stem and the tree canopy biomass is presented. The point cloud tree extraction techniques operate on TLS data and models the biomass using the estimated stem and canopy volume as independent
K. Olofsson, J. Holmgren
doaj   +1 more source

Light-related variation in sapling architecture of three shade-tolerant tree species of the Mexican rain forest [PDF]

, 2008
The crown architecture of three shade-tolerant tree species (two subcanopy and one mid-canopy) was analyzed in relation to the light regime of the forest understorey.
Bongers, F., Martinez-Sanchez, J.L., Meave, J.   +2 more
core   +2 more sources