Results 41 to 50 of about 53,528 (238)

Research Progress and Key Scientific Issues Impacting Urban Agriculture Functional Transformation for Urban-Rural Integration

open access: yesRedai dili
Under the auspices of the national strategies for urban-rural integration and rural revitalization, a focus on the functional evolution and spatial reorganization mechanisms of urban agriculture is of great theoretical and practical significance.
Yang Ren, Lin Yuancheng
doaj   +1 more source

Crisis and Green Urban Development: Urban Agriculture and Post-Earthquake Urban Resilience in Christchurch, New Zealand [PDF]

open access: yes, 2023
The paper examines urban agriculture and local food initiatives in post-earthquake Christchurch, New Zealand and discusses their role for urban resilience.
Wesener, Andreas
core   +1 more source

Hydrogen (H2) Recovery From Hydrogen Sulfide (H2S): Current Technologies, Challenges, and Future Outlook

open access: yesAdvanced Science, EarlyView.
ABSTRACT Hydrogen sulfide (H2S) can be transformed into hydrogen (H2) through several chemical and catalytic processes, offering a promising route for both waste treatment and clean H2 production. This colorless, flammable, and toxic gas is found abundantly in swamps, volcanoes, hot springs, sewages, other natural gas fields, and even in refineries and
Divyesh Cirikonda   +4 more
wiley   +1 more source

Chitosan‐Carbon Dot Composite Materials Form a Leaf Surface Barrier to Mitigate the Enrichment and Invasion of Nanoplastics: From Leaf Interface to Systemic Response

open access: yesAdvanced Science, EarlyView.
Foliar spraying of CS‐CDs can form a film on the leaves of Brassica rapa, effectively reducing the enrichment and absorption of PS in the leaves, while increasing the biomass and nutrient content of the plants. In addition, CS‐CDs can also enrich the interfoliar microbial community and activate the plant's own defense metabolic pathways.
Beibei Zhao   +6 more
wiley   +1 more source

Extra Climate Benefits From Afforestation Due to Reduced Forest Fragmentation in China

open access: yesAdvanced Science, EarlyView.
Afforestation in China reduced forest fragmentation in 2015, transforming 51.8 M ha of edge forests into interior forests. This enhanced carbon sequestration (1.4±0.2 Pg CO2e, a cooling biogeochemical effect), while reduced albedo (−0.9 Pg CO2e, a warming biophysical effect) partially offset the gain, yielding a net extra climate benefit of ...
Nan Meng   +19 more
wiley   +1 more source

Critical evaluation of the impact of urban agriculture on food security: Case study of urban food gardens in Kayamandi settlement in Stellenbosch, Western Cape [PDF]

open access: yes, 2019
Magister Artium (Development Studies) - MA(DVS)This research investigates the impact of urban agriculture on food security through urban food garden projects in Kayamandi.
Salah, Abdikarim Ahmed
core   +1 more source

Solar‐Driven Bifunctional Adsorption‐Storage Films for Ultra‐Fast Dehumidification and Freshwater Supply in Low‐carbon Buildings

open access: yesAdvanced Science, EarlyView.
Bifunctional adsorption‐storage films enable autonomous indoor humidity regulation and freshwater harvesting, rapidly decreasing relative humidity from 90.7% to 21.6% within one hour while producing 1.1 kg·m−2·day−1 of water, offering a passive route towards energy‐efficient humidity control and sustainable indoor environments. ABSTRACT Indoor humidity
Yuechao Chao   +10 more
wiley   +1 more source

Health and wellbeing Benefits of Urban Agriculture Practice in Kathmandu Valley

open access: yesJournal of Nepal Health Research Council
Background: Urban areas are occupied with dense population and green spaces are hard to find. Urban agriculture solves food security problems as well as has important positive health outcomes.
Marina Vaidya Shrestha   +2 more
doaj   +1 more source

How Much Food Can We Grow in Urban Areas? Food Production and Crop Yields of Urban Agriculture: A Meta‐Analysis

open access: yesEarth's Future, 2022
Urban agriculture can contribute to food security, food system resilience and sustainability at the city level. While studies have examined urban agricultural productivity, we lack systemic knowledge of how agricultural productivity of urban systems ...
Florian Thomas Payen   +8 more
doaj   +1 more source

Accounting for Substitution: Improving Estimates of GHG Reductions From Cattle‐Based Product Demand Shifts

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Estimates of reductions in greenhouse gas (GHG) emissions from lower demand for cattle‐based products must account for substitution effects. This study collected data through two surveys—one on ground beef and another on dairy milk—to evaluate substitution effects and potential GHG reductions.
Brandon R. McFadden   +5 more
wiley   +1 more source

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