Results 31 to 40 of about 306,417 (304)

Global Patterns in Net Primary Production Allocation Regulated by Environmental Conditions and Forest Stand Age: A Model‐Data Comparison [PDF]

, 2019
The allocation of net primary production (NPP) to different plant structures, such as leaves, wood, and fine roots, plays an important role in the terrestrial carbon cycle. However, the biogeographical patterns of NPP allocation are not well understood.
Nicolas Viovy, Yuan, Wenping, Jiangzhou Xia, Zhang, Haicheng, Fortunat Joos, Wenping Yuan, Wang, Xufeng, Chen, Yang, Xia, Jiangzhou, Xufeng Wang, Viovy, Nicolas, Tian, Xiangjun, Joos, Fortunat, Lienert, Sebastian, Xiangjun Tian, Ciais, Philippe, Wang, Ying‐ping, Haicheng Zhang, Philippe Ciais, Yang Chen, Sebastian Lienert, Ying‐ping Wang   +21 more
core   +1 more source

Nitrogen accumulation, rather than carbon: nitrogen stoichiometric variation, underlies carbon storage during forest succession

Environmental Research Letters, 2021
Forest ecosystems play an important role in regulating global temperatures through their capability to take up and store CO _2 from the atmosphere, but the magnitude and sustainability of this carbon ( C ) sink is critically dependent on the availability
Junliang Zou, Juying Wu, Bruce Osborne, Brian Tobin, Yiqi Luo   +4 more
doaj   +1 more source

Soil Microbial Community, Soil Quality, and Productivity along a Chronosequence of Larix principis-rupprechtii Forests

Plants, 2023
Elucidating the correlation between soil microbial communities and forest productivity is the focus of research in the field of forest ecology. Nonetheless, the relationship between stand age, soil quality, soil microorganisms, and their combined ...
Jing Zhang, Qiang Liu, Dongzhi Wang, Zhidong Zhang   +3 more
doaj   +1 more source

Influence of stand type and stand age on soil carbon storage in China’s arid and semi-arid regions

, 2018
Afforestation implemented on available lands that have a poor fertility with a low primary productivity is considered to be a significant land use change issue globally, especially in the current phase of increasing atmospheric CO2 concentrations ...
Zhang, Xiaofang, Gong, Yifan, Feng, Qi, Cao, Jianjun, Deo, Ravinesh   +4 more
core   +1 more source

Temporal changes in arbuscular mycorrhizal fungi communities and their driving factors in Xanthoceras sorbifolium plantations

Frontiers in Microbiology
Arbuscular mycorrhizal fungi (AMF) communities are influenced by soil nutrients and plant and litter traits during forest ecosystem development. However, the extent to which these factors influence AMF communities in Xanthoceras sorbifolium plantations ...
Yuexin Zhang, Yunxia Ma, Xiuzhi Ma, Cuiwei Li   +3 more
doaj   +1 more source

Age-related changes of stability in standing posture.

Nippon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics, 1986
立位保持能力の加齢的変化について, とくに重心位置を積極的に shift させる能力を中心として検討した. 被験者には22歳から95歳までの健常男子148名を用い, 重心動揺計上に Romberg 姿勢で立たせ次の課題を行なわせた. 1) 開眼および閉眼で安静立位を20秒間保持する. 2) 開眼にて重心位置を随意的に前後方向に shift させた立位姿勢を10秒間保持する. 重心動揺計から出力される足圧中心を重心位置としてとらえ, X-Yレコーダに描記するとともに各時間ごとの累積移行距離をアナライザにより算出した. 踵の最後部から各姿勢における重心動揺軌跡の中心位置までの長さを足長に対する比として算出した.
Hashizume, Ken, Ito, Hajime, Maruyama, Hitoshi, Saito, Hiroshi, Ishikawa, Makoto   +4 more
openaire   +3 more sources

Estimating the Aboveground Biomass for Planted Forests Based on Stand Age and Environmental Variables

Remote Sensing, 2019
Measuring forest aboveground biomass (AGB) at local to regional scales is critical to understanding their role in regional and global carbon cycles. The Three-North Shelterbelt Forest Program (TNSFP) is the largest ecological restoration project in the ...
Dailiang Peng, Helin Zhang, Liangyun Liu, Wenjiang Huang, Alfredo R. Huete, Xiaoyang Zhang, Fumin Wang, Le Yu, Qiaoyun Xie, Cheng Wang, Shezhou Luo, Cunjun Li, Bing Zhang   +12 more
doaj   +1 more source

Localisation and mobility of trace metal in silver fir needles [PDF]

, 2012
Trace metals (TM: Co, Ni, Cu, Zn, Cd, and Pb) as well as Al, Mn, and Fe content was measured in needles of a remote silver fir stand in the south of France. TM localisation and behaviour in needles was evaluated by measuring total and internal content of
Gandois, Laure, Probst, Anne
core   +1 more source

Nutrient recycling and utilization of Torreya grandis ‘Merrillii’ along an age gradient

Frontiers in Plant Science
IntroductionThe intrinsic relationships among plants, litter, and soil nutrient characteristics, along with the responses of ecological stoichiometry to nutrient utilization, are critical for understanding the mechanisms of nutrient cycling.
Aifei Fan, Aifei Fan, Songheng Jin, Yangzhou Tan, Yangzhou Tan, Weiwei Huan, Wenjing Chen, Xiaoyu Wang, Yini Han   +8 more
doaj   +1 more source

Snag density and stand age, but not stand size, explain occupancy and reproduction of an imperiled cavity nester in early successional forest

Avian Conservation and Ecology, 2022
Many early successional and disturbance-dependent bird species have declined over the past several decades. Cavity-nesting birds in early successional forests are vulnerable because they often require specific habitat characteristics and frequent ...
Meghan A. Beatty, Karl E. Miller, Robert J. Fletcher, Jr.   +2 more
doaj