Results 51 to 60 of about 7,581 (264)
Rhizodeposition Drives One Third of Belowground Carbon Input in Agroecosystems
Advanced Science, EarlyView.This study quantifies photosynthesized C allocation in the plant–soil system across six crop types: barley, wheat, maize, rice, legumes and grasses. It reports C partitioning into shoot respiration, shoot‐C, root‐C, net rhizodeposition and root‐derived CO2, providing standardized percentage averages and GPP‐derived absolute values as a robust baseline ...
Zhengjun Yan +10 more
wiley +1 more source
Mesoscopic numerical tests on seepage failure characteristics of coarse grained soils
Yantu gongcheng xuebao, 2018 To deeply explore the influences of seepage failure on permeability feature of coarse grained soils, based on the analysis of indoor experiment results of seepage failure tests on coarse grained soil samples, the software named PFC3D is employed to ...
JIANG Zhong-ming 1,2, YUAN Tao 3, LIU De-qian 1, LI Xiao-fan 1
doaj +1 more source
The Geography of Success: A Spatial Analysis of Export Intensity in the Italian Wine Industry
Agribusiness, EarlyView.ABSTRACT This paper investigates the paradox of how Italy's fragmented, SME‐dominated wine industry achieves global export success. Moving beyond purely firm‐centric explanations, we test whether export intensity is spatially dependent, clustering geographically in regional ecosystems.
Nicolas Depetris Chauvin, Jonas Di Vita
wiley +1 more source
Results in EngineeringPredicting thermal thawing disasters in coarse-grained frozen soil remains an urgent challenge. To address the limitations of traditional frozen soil models and the unclear multi-physics links, this study utilizes nuclear magnetic resonance (NMR ...
Min Zhang +3 more
doaj +1 more source
Pesticide MRLs as Trade Barriers: Evidence From Vietnam's Coffee and Rice Exporters
Agribusiness, EarlyView.ABSTRACT As tariffs have declined globally through bilateral and regional trade agreements, food safety standards have emerged as significant determinants of agricultural trade flows. This study examines the impact of maximum residue limits (MRLs) for five pesticides—Azoxystrobin, Chlorpyrifos, Chlorantraniliprole, Clothianidin, and Cyhalothrin—on ...
Nhat Mai Nguyen +2 more
wiley +1 more source
Auger Bit for Frozen Fine-Grained Soil [PDF]
, 1986 Abstract : Auger bits 6.5 in. (165 mm) and 9.5 in. (241 mm) in diameter were modified to satisfy military and general engineering requirements for producing holes in frozen soil. A commercial bit was selected since it appeared to need only minor modification.
Bruce E. Brockett, Paul V. Sellmann
openaire +1 more source
Does Contract Farming Reduce Pesticide Use? Panel Data Evidence From Smallholder Farmers in China
Agribusiness, EarlyView.ABSTRACT The inappropriate and excessive use of pesticides poses a major threat to human and ecosystem health in the agri‐food sector. While existing studies have examined the potential of contract farming to address this issue, most have focused on large‐scale farms and relied on small or transactional datasets, often leaving the role of crop‐specific
Zhihui Liang, Shan Jin, Matthew Gorton
wiley +1 more source
High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State
American Journal of Botany, EarlyView.Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording +4 more
wiley +1 more source
Dynamics of Small-Scale Topographic Heterogeneity in European Sandy Salt Marshes
Journal of Marine Science and Engineering, 2016 Heterogeneity can boost biodiversity, as well as increase the resilience of an ecosystem to changing environmental conditions; therefore, it is important to understand how topographic heterogeneity in ecosystems is formed.
Kelly Elschot, Jan P. Bakker
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Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Healthcare derived polystyrene waste represents a growing and under addressed fraction of plastic waste streams due to contamination risks and limited recyclability. This study aims to investigate the valorization of waste polystyrene foam through catalytic and noncatalytic pyrolysis pathways to evaluate product yield distribution and identify
Salman Khan +4 more
wiley +1 more source