Results 71 to 80 of about 517,089 (299)

Analysis of the spatiotemporal dynamics of grassland carbon sinks in Xinjiang via the improved CASA model

open access: yesEcological Indicators
Accurate assessment of grassland carbon sinks provides scientific data for quantifying the global carbon balance. Currently, methods for precisely calculating NPP (net primary productivity) and NEP (net ecosystem productivity) in arid grasslands are ...
Xuewei Liu   +9 more
doaj   +1 more source

Spatial patterns of vegetation carbon sinks and sources dataset in Central Asia

open access: yesData in Brief, 2020
This dataset includes land use/cover change data with a spatial resolution of 300 m, net ecosystem productivity data based on the monthly grid data of the temperature and precipitation series data from the Climatic Research Unit, terrestrial net primary ...
Zhi Li   +3 more
doaj   +1 more source

A global analysis of the impact of drought on net primary productivity [PDF]

open access: yesHydrology and Earth System Sciences, 2013
We investigated the impact of drought on interannual variability of net primary productivity (NPP) from 1997 to 2009, using the standardized precipitation evapotranspiration index (SPEI) drought index and satellite-derived vegetation greenness converted ...
T. Chen   +4 more
doaj   +1 more source

Multifunctional Bio‐Based Packaging for Perishable Foods: Structural Design, Scalable Fabrication, and Versatile Applications

open access: yesAdvanced Materials, EarlyView.
An overview of design principles and scalable fabrication strategies for multifunctional bio‐based packaging. Radiative cooling films, modified‐atmosphere films/membranes, active antimicrobial/antioxidant platforms, intelligent optical/electrochemical labels, and superhydrophobic surfaces are co‐engineered from material chemistry to mesoscale structure
Lei Zhang   +6 more
wiley   +1 more source

Equilibration of the terrestrial water, nitrogen, and carbon cycles [PDF]

open access: yes, 1997
Recent advances in biologically based ecosystem models of the coupled terrestrial, hydrological, carbon, and nutrient cycles have provided new perspectives on the terrestrial biosphere’s behavior globally, over a range of time scales.
Braswell, Rob   +2 more
core   +2 more sources

Matrix Viscoelasticity Regulates Dendritic Cell Migration and Immune Priming

open access: yesAdvanced Materials, EarlyView.
Matrix viscoelasticity is a key mechanical feature of the tumor microenvironment but remains poorly understood in immune regulation. Here, we develop a tunable collagen platform to decouple viscoelasticity from stiffness and show that slow‐relaxing matrices constrain dendritic cell migration by limiting actomyosin‐driven matrix remodeling, thereby ...
Wei‐Hung Jung   +6 more
wiley   +1 more source

Primary productivity in Bahr Al-Najaf Depression Reservoir/Iraq

open access: yesKufa Journal for Agricultural Sciences, 2018
The primary productivity was calculated depending on pelagic and benthic biomass. Monthly samples were obtained from four study stations (February 2015 to January 2016). The pelagic primary productivity values were ranged between1.26 mg. cm-2.
Mohammed Jawad Salih Al-Haidarey   +2 more
doaj  

Pulsed Laser‐Assisted Phase Engineering of Multimetallic Colloidal Nanocrystals With Complex Compositions

open access: yesAdvanced Materials, EarlyView.
The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela   +4 more
wiley   +1 more source

Comparative Ecological and Physiological Characteristics of the Response of Oak (Quercus robur L.) Seed Stands to Forest Growth Conditions

open access: yesЛесной журнал
A comprehensive retrospective ecological and physiological analysis of tabular data on the dry mass of stands of the genus Quercus aged from 10–20 to 140–200 years has been carried out in order to convert them into quantitative indices of the functioning
Valentin M. Lebedev, Evgeny V. Lebedev
doaj   +1 more source

Comparison of simulation modeling and satellite techniques for monitoring ecological processes [PDF]

open access: yes
In 1985 improvements were made in the world climatic data base for modeling and predictive mapping; in individual process models and the overall carbon-balance models; and in the interface software for mapping the simulation results. Statistical analysis
Box, Elgene O.
core   +1 more source

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