Results 81 to 90 of about 6,745,347 (301)

STUDY ON MONGOLIAN FOREST STAND DYNAMICS USING MATHEMATICAL MODELING

Proceedings of the Mongolian Academy of Sciences, 2017
A Global warming, climate change and negative human activities are expected to directly and negatively influence Mongolia’s forest resource area and quality [21].
Khulan M, Liu Junchang
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Forest pest leaflet.

, 1955
Includes also a revised ed. (1987) of no.
United States. Forest Service.
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Data‐Driven SuStaIn Model of Disability Progression in Amyotrophic Lateral Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To determine whether ordinal Subtype and Stage Inference (SuStaIn) applied to routine ALSFRS‐R item scores can identify reproducible disability progression patterns in amyotrophic lateral sclerosis (ALS) and provide clinically meaningful staging.
Giammarco Milella, Veria Vacchiano, Vittorio Velucci, Stefano Zoccolella, Rocco Liguori, Giovanni Defazio   +5 more
wiley   +1 more source

Carbon storage and carbon pool characteristics of Larix gmelinii forest in Daxing’anling, Inner Mongolia, China

Frontiers in Forests and Global Change
Larix gmelinii is an important ecological construction tree species in northern China, and its carbon storage and distribution characteristics are of great significance for evaluating the carbon balance and climate effect of forest ecosystems.
Kai Zhao, Yongjie Yue, Fucang Qin, Fucang Qin, Long Hai, Lixi Yi, Pengwu Zhao, Longfei Hao, Yang Shu, Yaxiong Zheng, Long Li, Rong He, Yajie Xu   +12 more
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Age distribution of trees in stationary forest system [PDF]

Journal of Theoretical Biology, 2011
A statistical theory for the age distribution of spatially dominant trees in a stationary forest system is developed. The result depends whether or not mortality is spatially correlated, as well as whether or not the stand boundaries are pre-determined.
openaire   +4 more sources

Forest essays, level 7-12

, 2016
Big red wins back title as nation's largest ponderosa pine -- Salmon's journey home -- Destructive foreign invader -- Douglas-fir seedling reaches for the light -- Community members and school kids bring back a forest -- High-climbing botanists discover ...

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Clinical Impact of MGMT Promoter Methylation in IDH‐Mutant Gliomas: Influence of Threshold Selection and Clinical Confounding

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background The clinical relevance of MGMT promoter methylation in IDH‐mutant gliomas remains controversial in the era of molecular classification. We aimed to systematically evaluate its clinical relevance by integrating quantitative assessment, cutoff exploration, and adjustment for clinical confounding.
Haihui Jiang, Linxi Cao, Xiaodong Chen, Siqi Tong, Qinghui Zhu, Jun Yang, Song Lin, Yong Cui   +7 more
wiley   +1 more source

Improving forest age estimation to understand subtropical forest regrowth dynamics using deep learning image segmentation of time‐series historical aerial photographs

Remote Sensing in Ecology and Conservation
Accurate forest age estimation is essential for understanding forest recovery trajectories and evaluating the efficacy of restoration strategies. While field‐based methods for forest age estimation offer high accuracy, they are spatially constrained and ...
Ying Ki Law, Yi‐Fei Gu, Shuwen Liu, Guangqin Song, Aland H. Y. Chan, Cham Man Tse, Zhonghua Liu, Martha J. Ledger, Billy C. H. Hau, Sawaid Abbas, Jin Wu   +10 more
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Distribution characteristics and influencing factors of carbon storage in Populus plantations with different stand ages in the Luxi Yellow River floodplain, China

Frontiers in Plant Science
To explore the relationship between carbon storage and environmental factors in Populus plantations of different stand ages, and to reveal the carbon sequestration mechanisms of Populus plantations across different age classes, this study employed field ...
Zhibao Wang, Zhibao Wang, Xuehui Sun, Yuwei Guo, Chuanjie Zhou, Jing Liang, Haibing Wu, Cheng Huang, Xiangbin Gao, Yanyi Zhang   +9 more
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China's annual forest age dataset at a 30 m spatial resolution from 1986 to 2022 [PDF]

Earth System Science Data
Forest age is crucial for both carbon cycle modeling and effective forest management. Remote sensing provides crucial data for large-scale forest age mapping, but existing products often suffer from a low spatial resolution (typically 1000 m), making ...
R. Shang, R. Shang, X. Lin, J. M. Chen, J. M. Chen, Y. Liang, K. Fang, M. Xu, Y. Yan, W. Ju, G. Yu, N. He, L. Xu, L. Liu, J. Li, W. Li, J. Zhai, Z. Hu   +17 more
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