Results 41 to 50 of about 6,310 (207)

Effects of Population Age on the Annual Net Primary Productivity and Seed Yield of Artificial Grasslands on the Eastern Qinghai-Tibetan Plateau

Frontiers in Environmental Science, 2022
The forage yield and quality of artificial grasslands typically decline rapidly over time after planting. Moreover, the reason for this decline of artificial grassland remains unclear.
Cong Li, Yanmei Ren, Yanmei Ren, Lin Wu, Lin Wu, Xinchuan Wang, Defei Liang, Huakun Zhou, Huakun Zhou, Zhen Ma, Zhen Ma, Chunhui Zhang   +11 more
doaj   +1 more source

Seasonal patterns and controls on net ecosystem CO2 exchange in a boreal peatland complex [PDF]

, 1998
We measured seasonal patterns of net ecosystem exchange (NEE) of CO2 in a diverse peatland complex underlain by discontinuous permafrost in northern Manitoba, Canada, as part of the Boreal Ecosystems Atmosphere Study (BOREAS).
Aim, Anderson, Anderson, Bartsch, Bellisario, Bubier, Carroll, Chapin, Chapman, Chee, Crill, Damman, Daubenmire, Fernald, Frolking, Frolking, Glaser, Gorham, Goulden, Goulden, Harden, Jill L. Bubier, Johnson, Kathleen Savage, Kim, Kirschbaum, Lafleur, Laine, Maimer, Malmer, Martikainen, Minkkinen, Moore, Oechel, Pajari, Patrick M. Crill, Raich, Riley, Rochefort, Roulet, Roulet, Ruimy, Ruth K. Varner, Schlesinger, Sellers, Shurpali, Silvola, Silvola, Slack, Stotler, Suyker, Szumigalski, Thormann, Thornley, Tim R. Moore, Trumbore, Updegraff, Vitt, Vitt, Waddington, Wallen, Whiting, Wilkinson, Zoltai, Zoltai   +64 more
core   +2 more sources

Management and climate variability effects on understory productivity of forest and savanna ecosystems in Oklahoma, USA

Ecosphere, 2021
The productivity of herbaceous and understory woody vegetation is critical for wildlife habitat, livestock forage, and biodiversity, and is influenced by both annual weather patterns and tree dominance.
Arjun Adhikari, Ronald E. Masters, Kumar P. Mainali, Chris B. Zou, Omkar Joshi, Rodney E. Will   +5 more
doaj   +1 more source

Simulation of the Grazing Effects on Grassland Aboveground Net Primary Production Using DNDC Model Combined with Time-Series Remote Sensing Data—A Case Study in Zoige Plateau, China

Remote Sensing, 2016
Measuring the impact of livestock grazing on grassland above-ground net primary production (ANPP) is essential for grass yield estimation and pasture management.
Jiyan Wang, Ainong Li, Jinhu Bian
doaj   +1 more source

Above-ground net primary productivity and rain use efficiency of Chaco Semi-arid Forest in 1 Copo National Park, Santiago del Estero, Argentina

Revista de la Facultad de Agronomía, 2023
According to the REDD + Program, it is necessary to monitor, quantify and report the forest system status of protected areas. Having this in mind the objective of this work is to delimit the growing seasons of Chaco Semi-arid Forest (FCHS) in Copo ...
Jose L. Tiedemann, Andreise Moreira
doaj   +1 more source

Short-term Effects of Nutrients on a Barrier Island Grassland Community [PDF]

, 2017
Increased nutrient availability globally has the potential to affect community functional composition of plants in nutrient limited environments, such as coastal grassland systems.
Moulton, Ashley
core   +1 more source

Temporal and geographical patterns of nitazene detections in drug samples and biospecimens in the United States, 2019–2024

Addiction, EarlyView.
Abstract Background and aims Nitazenes are a novel subclass of synthetic opioids that have been increasingly implicated in the United States (US) overdose crisis. Despite their growing presence in the illicit drug supply, national trends have not been systematically evaluated.
David T. Zhu, Nicole D. Fitzgerald, Joseph J. Palamar, Alex J. Krotulski   +3 more
wiley   +1 more source

Diminished positive effects of warming on stability of plant productivity over time in an alpine meadow

Communications Earth & Environment
Warming can alter the temporal stability of aboveground net primary productivity (ANPP) in grasslands. However, it remains unclear how ANPP stability responds to long-term warming. Through a 10-year in-situ manipulative warming experiment conducted in an
Zheng Li, Yubao Sha, Huihui Liu, Guozheng Hu, Fen Zhao, Maowei Liang, Hasbagan Ganjurjav, Qingzhu Gao   +7 more
doaj   +1 more source

Analysis of Grassland ANPP Dynamics Due to Changes in Climate Variables at Ukrainian Biosphere Reserve ‘Askania-Nova’

Ekológia (Bratislava), 2017
The Ukrainian feather-grass steppe ecosystems are highly vulnerable to climate changes. To study the impact of climatic factors on steppe ecosystems’ productivity, the correlation and stepwise regression analysis between ANPP and other variables were ...
Belyakov Sergiy, Gofman Orysia, Vyshenska Iryna, Zvegintsev Sergey   +3 more
doaj   +1 more source

Warmer and wetter climate promotes net primary production in C4 grassland with additional enhancement by hay harvesting

Ecosphere, 2022
Grassland ecosystems provide essential services to society. To maintain ecosystem functions and services of grasslands under changing environments, it is critical to understand how grasslands respond and feedback to climate change.
Chang Gyo Jung, Xia Xu, Zheng Shi, Shuli Niu, Jianyang Xia, Rebecca Sherry, Lifen Jiang, Kai Zhu, Enqing Hou, Yiqi Luo   +9 more
doaj   +1 more source