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plants

这幅森林场景描绘了几棵铁杉树的底部,其根部暴露在外
Posted inResearch Spotlights

用木质部估算植物用水量

Sarah Derouin, Science Writer by Sarah Derouin 31 January 202321 March 2023

一项新研究表明,来自植物木质部的化学同位素可以帮助改善森林水循环的表征。

A forest scene depicts the base of several hemlock trees with their roots exposed.
Posted inResearch Spotlights

To Estimate Plant Water Use, Consider the Xylem

Sarah Derouin, Science Writer by Sarah Derouin 13 January 202331 January 2023

New research shows that chemical isotopes from plant xylem can improve representations of the forest water cycle.

Posted inEditors' Highlights

Roadside Plants Witness COVID Traffic

Eric Davidson, president-elect of AGU by Eric Davidson 7 January 20237 January 2023

Radiocarbon in roadside plants revealed a decline in auto emissions during COVID lockdown and a 2021 rebound. Could this improve emission estimates in countries without CO2 monitoring infrastructure?

Close-up of a flowering lilac shrub.
Posted inNews

Leaves Are Springing Up Earlier Along the Appalachian Trail

by Kate Hull 14 December 20225 September 2023

Satellite images of lustrous new leaves reveal changes that will have cascading effects on diverse ecosystems in the eastern United States.

A tuft of switchgrass with its associated roots is displayed horizontally on a black background.
Posted inResearch Spotlights

The World’s Roots Are Getting Shallower

by Rebecca Dzombak 17 November 202217 November 2022

Root-filled soils are hot spots of nutrient cycling and carbon storage. New research finds that the world has lost millions of cubic meters of rooted soil volume—and we’re on track to lose much more.

Aerial view of tributaries entering a larger river with an inset close-up of aquatic plants
Posted inResearch Spotlights

High-Frequency Monitoring Reveals Riverine Nitrogen Removal

by Saima May Sidik 25 October 202226 October 2022

Years of daily readings provide an unprecedented view into how a submerged aquatic meadow kept nitrogen from reaching the St. Lawrence Estuary as well as insights on how climate change may alter it.

Aerial view of an agricultural field with some plots in temperature-controlled conditions
Posted inNews

Warmer Winters Keep Crops Sleepy into Spring, Hurting Yield

by Elise Cutts 21 October 202228 October 2022

Annual crops go dormant during winter. Frosty temperatures cue them to wake up—but the warmer winters brought on by climate change scramble the cold signal, hurting yield.

Photograph of a seagrass meadow
Posted inEditors' Highlights

Warming and Agitation Intensify Seagrass Meadow Carbon Fluxes

by Jorge Villa 17 October 202212 October 2022

Carbon dioxide emissions surge in sediments when temperature and agitation increase, both of which are likely to continue rising in degraded Mediterranean seagrass meadows.

A blue-gray river runs through a steep mountainous terrane, with the slopes nearest the river coated in green grasses, plants, and coniferous trees.
Posted inNews

What Can Zircons Tell Us About the Evolution of Plants?

by Alka Tripathy-Lang 5 October 202218 October 2022

The versatile mineral could contain evidence of the evolution of land plants and their effect on the sedimentary system.

A map showing global land cover and two graphs.
Posted inEditors' Highlights

Vegetation Carries the Signature of Recent Precipitation

by Valeriy Ivanov 3 October 202228 September 2022

Vegetation response to precipitation is important for near-term weather predictability, and researchers show that such a response can occur within a few days and last up to two months.

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