Results 61 to 70 of about 346,059 (309)

Global cropland monthly gross primary production in the year 2000 [PDF]

open access: yesBiogeosciences, 2014
Abstract. Croplands cover about 12% of the ice-free terrestrial land surface. Compared with natural ecosystems, croplands have distinct characteristics due to anthropogenic influences. Their global gross primary production (GPP) is not well constrained and estimates vary between 8.2 and 14.2 Pg C yr−1.
Chen, T.   +4 more
openaire   +4 more sources

High spatial resolution vegetation gross primary production product: Algorithm and validation

open access: yesScience of Remote Sensing, 2022
Vegetation gross primary production (GPP) in terrestrial ecosystems is a key element of the carbon cycle, and its estimation highly determines the accuracy of carbon budget assessments. Currently, several global datasets of vegetation production are available at coarse or moderate spatial resolutions, but globally they still have large uncertainties ...
Xiaojuan Huang   +7 more
openaire   +2 more sources

METTL5 Enables Immune Evasion of Liver Cancer via Chemokine mRNA Translation Regulation

open access: yesAdvanced Science, EarlyView.
METTL5 reshapes the tumor immune microenvironment through ribosome 18S rRNA m6A modification to regulate the translation of chemokine mRNA. Targeting METTL5‐mediated immunosuppression unleashes anti‐tumor immunity and improves the efficacy of anti‐PD‐1 therapy.
Shuang Li   +19 more
wiley   +1 more source

First assessment of the plant phenology index (PPI) for estimating gross primary productivity in African semi-arid ecosystems

open access: yes, 2019
The importance of semi-arid ecosystems in the global carbon cycle as sinks for CO2 emissions has recently been highlighted. Africa is a carbon sink and nearly half its area comprises arid and semi-arid ecosystems.
Abdi, A. M.   +6 more
core   +1 more source

The Evolutionarily Conserved TPM1 Super‐Enhancer Drives Skeletal Muscle Regeneration via Mechanotransduction Signaling

open access: yesAdvanced Science, EarlyView.
By integrating biomechanical and epigenetic cues, the evolutionarily conserved TPM1 super‐enhancer drives myogenesis via TEAD4‐mediated chromatin looping. This mechanism produces species‐specific outputs (linear TPM1 mRNA in mice and CircTPM1 in bovine) that activate PI3K/AKT mechanotransduction and the MYH10/MYL3 axis to execute cytoskeletal ...
Ruimen Zhang   +27 more
wiley   +1 more source

Assessment of Six Machine Learning Methods for Predicting Gross Primary Productivity in Grassland

open access: yesRemote Sensing, 2023
Grassland gross primary productivity (GPP) is an important part of global terrestrial carbon flux, and its accurate simulation and future prediction play an important role in understanding the ecosystem carbon cycle.
Hao Wang   +4 more
doaj   +1 more source

Water quality of Texas bays (nutrients, trace elements and toxic compounds) [PDF]

open access: yes, 1974
This manuscript is designed to compare the nutrient balances and trace element significance in Texas Bays and Estuaries. The task of assigning water quality criteria in all estuarine waters rests with the federal Environmental Protection Agency. However,
Brogden, William B.   +2 more
core   +1 more source

Compartmentalized Homeostasis Drives High Bamboo Forest Productivity under Nutrient Imbalance

open access: yesAdvanced Science, EarlyView.
This study reveals how Moso bamboo achieves high productivity despite nutrient‐poor soils. It employs a unique strategy, maintaining strict nutrient balance in its leaves while using woody tissues as flexible storage reservoirs. This compartmentalized mechanism buffers the plant from soil phosphorus limitation and microbial competition, resolving the ...
Zhikang Wang   +13 more
wiley   +1 more source

Comparing the performance of vegetation indices for improving urban vegetation GPP estimation via eddy covariance flux data and Landsat 5/7 data

open access: yesEcological Informatics
Urban vegetation is pivotal in enhancing regional ecological balance and sequestering significant amounts of carbon dioxide (CO2) through photosynthesis, thereby contributing substantially to regional carbon budgets.
Qianghao Zeng   +5 more
doaj   +1 more source

Rangeland Productivity Partitioned to Sub-Pixel Plant Functional Types

open access: yesRemote Sensing, 2019
Understanding and monitoring the dynamics of rangeland heterogeneity through time and across space is critical for the effective management and conservation of rangeland systems and the sustained supply of the ecosystem goods and services they provide ...
Nathaniel P. Robinson   +5 more
doaj   +1 more source

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