Results 61 to 70 of about 124,131 (301)

Soil Inorganic Electron Acceptors and Carbon Substrates Hierarchically Govern Wetland Methanogenesis Temperature Response

open access: yesAdvanced Science, EarlyView.
ABSTRACT Wetlands constitute Earth's largest natural methane (CH4) source, yet projections of their climate feedback remain uncertain due to poorly constrained temperature sensitivity (Q10‐CH4) of microbial methanogenesis. While water table dynamics have been demonstrated to regulate wetland methanogenesis by altering key soil conditions such as ...
Shuying Qiu   +6 more
wiley   +1 more source

Reimagining landscape sustainability through integrated farming system models and policies under changing climate scenarios

open access: yesDiscover Sustainability
In the context of climate change, natural resource degradation, and decreasing farm and input productivity, there is an urgent need to redesign agricultural systems with the use of integrated, landscape-level approaches.
Gajanan L Sawargaonkar   +13 more
doaj   +1 more source

The Tropics

open access: yes, 2023
The tropics, or equatorial regions, for centuries have stirred interest among people living outside of the region. Old Western literature often represented the tropics as a wild, unconquerable natural wilderness, or as “Garden of Eden” style tropic ...
Carroll, Daniel, Carroll, Michael Thomas
core   +1 more source

Iron‐Mediated Release of Aged Dissolved Organic Carbon From Waterlogged Peatland Under Warming

open access: yesAdvanced Science, EarlyView.
This study conducts a five‐year in situ warming experiment in high‐altitude peatlands to examine dissolved organic carbon (DOC) release. The study shows that warming promotes the release of plant‐derived modern DOC in drained peatlands, but amplifies aquatic export of century‐old DOC from waterlogged peatlands via Fe‐mediated DOC mobilization—a ...
Guohua Dai   +18 more
wiley   +1 more source

Livelihood Risk from HIV in Semi-Arid Tropics of Rural Andhra Pradesh [PDF]

open access: yes
This paper discusses the livelihood dynamics in the fragile landscape of the semi arid tropics (SAT) of Andhra Pradesh. SAT is home to the poorest of the poor who live in conditions of persistent drought, subsistence agriculture and poor access to ...
Gandhi, B. Valentine Joseph   +2 more
core   +2 more sources

Rapid Ragi: A speed breeding protocol for finger millet

open access: yesPlant Methods
Background Climate change is gradually increasing demand for resilient, nutritious crops like finger millet or ragi. Ensuring food security requires researchers to develop improved and adapted cultivars rapidly.
Sobhan Sajja   +10 more
doaj   +1 more source

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

open access: yesAdvanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais   +32 more
wiley   +1 more source

Genome‐Wide Association Study and RNA Sequencing Identify Candidate Genes Regulating Nitrogen Use Efficiency and Associated Traits in Sorghum (Sorghum bicolor (L.) Moench)

open access: yesFood and Energy Security
Sorghum (Sorghum bicolor L. Moench) is a resilient cereal crop with remarkable adaptability to diverse environments. Nitrogen use efficiency (NUE) is critical for improving sorghum yields, resource utilization, livelihood security, and environmental ...
Srikanth Bollam   +13 more
doaj   +1 more source

Inheritance of Resistance to Sorghum Shoot Fly, Atherigona soccata in Sorghum, Sorghum bicolor (L.) Moench

open access: yesFrontiers in Plant Science, 2016
Host plant resistance is one of the major components to control sorghum shoot fly, Atherigona soccata. To understand the nature of gene action for inheritance of shoot fly resistance, we evaluated 10 parents, 45 F1’s and their reciprocals in replicated ...
Mohammed eRiyazaddin   +6 more
doaj   +1 more source

História da Educaçãi em S. Tomé e Príncipe (sec XV a XX) - Estudos e Fontes Vol. I

open access: yes, 2021
O desenvolvimento da instrução em São Tomé e Príncipe, ao longo dos séculos XVI a XVIII, foi extraordinariamente atribulado, num padrão semelhante ao das outras colónias africanas, exceptuando-se eventualmente o caso de Cabo Verde.2 Tal não pode, porém,
marques, renata, pereira, sara
core  

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