Results 61 to 70 of about 6,808 (260)

Methane emission from tropical savanna Trachypogon sp. grasses [PDF]

Atmospheric Chemistry and Physics, 2006
Methane flux measurements from the soil-grass system were made during the wet season in unperturbed plots and plots where standing dry and green Trachypogon sp. grasses were clipped to just above the soil surface. Results support the surprising discovery
E. Sanhueza, L. Donoso
doaj  

Large‐scale characterization of horizontal forest structure from remote sensing optical images

Remote Sensing in Ecology and Conservation, EarlyView.
Sub‐meter resolution remote sensing data and tree crown segmentation techniques hold promise in offering detailed information that can support the characterization of forest structure from a horizontal perspective, offering new insights in the tree crown structure at scale.
Xin Xu, Martin Brandt, Xiaowei Tong, Maurice Mugabowindekwe, Yuemin Yue, Sizhuo Li, Qiue Xu, Siyu Liu, Florian Reiner, Kelin Wang, Zhengchao Chen, Yongqing Bai, Rasmus Fensholt   +12 more
wiley   +1 more source

Improved Cerrado Wetland Mapping Through Seasonal Moisture Metrics, Terrain Information and Semantic Segmentation

Remote Sensing in Ecology and Conservation, EarlyView.
Brazil's Cerrado valley wetlands—swamp savanna and gallery forest—are highly important for the biome's water cycle and carbon storage and are susceptible to degradation from the impacts of land use expansion and the climate crisis. In support of their detailed monitoring and assessment, we developed and tested a transferable mapping approach that ...
Felix Beer, Hugo do Nascimento Bendini, Mateus de Souza Miranda, Vu‐Dong Pham, Leila Maria Garcia Fonseca, Cássia Beatriz Rodrigues Munhoz, Sebastian van der Linden   +6 more
wiley   +1 more source

Tree seed dispersal modes affect forest resilience along savanna-forest boundaries

Environmental Research Letters
The effects of global changes on tropical forests and savannas are manifested primarily at their boundaries. The dynamics at these forest-savanna boundaries depend on their shapes, which influence the spread of fires through the savanna landscape.
Max van der Ree, Gerard T Barkema, Arie Staal   +2 more
doaj   +1 more source

Canopy color indices for estimating gross primary production: insights from a savanna ecosystem in the Dry-Hot Valley of Southwest China

Frontiers in Forests and Global Change
IntroductionThe deployment of digital cameras on flux towers offers a practical approach to exploring how seasonal canopy photosynthesis is related to canopy color indices (CCIs).
Ruiwu Zhou, Qinghai Song, Qinghai Song, Yanqiang Jin, Guojing Wen, Xuehai Fei, Yiping Zhang   +6 more
doaj   +1 more source

frontiermetrics: An R Package for Characterizing Deforestation Frontiers

Remote Sensing in Ecology and Conservation, EarlyView.
Deforestation frontiers are major drivers of biodiversity loss, carbon emissions, and ecosystem degradation, yet our understanding of how deforestation progresses in these frontiers is limited. We present frontiermetrics, an R package to quantify a range of metrics describing the speed, severity, and spatio‐temporal patterns of forest loss. The package
Pablo Yair Huais, Ana Buchadas, Eduardo Lacerda, Javier Nori, Matthias Baumann, Tobias Kuemmerle   +5 more
wiley   +1 more source

Amazonian savannas are an integral part of Brazil’s Amazon “biome”: implications for environmental policies

Discover Conservation
Conservation policies in Brazil differ between the “biomes” into which the country has divided its territory since 2004. The Amazon biome is predominantly tropical forest but also includes unique savanna ecosystems, while the Cerrado biome is composed of
William Douglas Carvalho, Salustiano V. Costa-Neto, Fernando Cesar Paiva Dagosta, Philip M. Fearnside, Renato Richard Hilário, Hernani Fernandes Magalhães de Oliveira, Cláudia Regina da Silva, José Julio de Toledo, Bruna Silva Xavier, Karen Mustin   +9 more
doaj   +1 more source

Antimicrobial Residues in a Key Cerrado River: Distribution, Persistence, and Effects on Zebrafish Embryo‐Larval Development

Environmental Toxicology, EarlyView.
ABSTRACT The current study aimed to quantify the antimicrobials amoxicillin (AMX), cefazolin (CFZ), chloramphenicol (CHL), metronidazole (MTZ), and sulfamethoxazole (SX) in effluents and surface water of an important Cerrado river, calculate their half‐lives, and analyze their ecotoxicity following single and combined exposures.
Náthala Maria Simão, Igor Romeiro dos Santos, Jerônimo Raimundo de Oliveira Neto, Flávio Olimpio Sanches Neto, Felipe Cirqueira Dias, Jéssyca Moreira Morais, Lorranny Pereira de Assis Valadares, Naiara Raica Lopes de Oliveira, Mirelle Garcia Silva Bailão, Luiz Carlos da Cunha, Valter Henrique Carvalho‐Silva, Thiago Lopes Rocha, Elisa Flávia Luiz Cardoso Bailão   +12 more
wiley   +1 more source

Digital behaviour change ecosystems for sustainable innovation

Discover Sustainability
This paper presents a systematic review of the literature on digital behaviour change ecosystems (DBCE) in the context of sustainable innovation. The concept of digital behaviour change ecosystem is gaining increasing attention across multiple domains ...
Kingsley Ofosu-Ampong, Edward Martey, Anthony Renner-Micah   +2 more
doaj   +1 more source

How weather got its words: a history of meteorological English – Part 1: Old English to the Age of Discovery

Weather, EarlyView.
The English language is a gargantuan, gluttonous beast. It has become extraordinary among its peers in its powers of assimilation – such that we rarely consider the diverse origins of the words we use. In this two‐part paper, we will explore these origins, including the Pontic‐Caspian steppe, the British Empire, latinophone scientists and a TV show. We
Kieran M. R. Hunt
wiley   +1 more source