Trees Are Dying at Shocking Rates — Understanding How Could …
2024年2月20日 · Forest scientists around the globe are alarmed to see droughts, often exacerbated by fire and infestations of bark beetles, cull trees at scales they have never seen before — from massive swaths...
What happens in the forest during winter? - EcoTree
For some forest animals and plants, winter is a time of hibernation. For others, it’s one of the most active parts of the year. In this post, you can learn all about what happens amongst the trees, and what those forest creatures get up to, over the cold winter months.
Abnormal Winter Drought-Induced Transient Dieback of Korean
2024年1月4日 · Decreased snowpack caused by winter drought and consequent exceptional soil freezing and frost heaving can lead to size-independent mortality and the transient dieback of Korean fir. Winter (a non-growing season) drought implies little snowpack.
Global field observations of tree die-off reveal hotter-drought ...
2022年4月5日 · Our analysis quantifies a global “hotter-drought fingerprint” from these tree-mortality sites—effectively a hotter and drier climate signal for tree mortality—across 675 locations encompassing...
Consequences of widespread tree mortality triggered by …
2012年9月9日 · We examine the consequences of drought- and climate-driven widespread forest loss on ecological communities, ecosystem functions, ecosystem services and land–climate interactions. Furthermore, we...
Northern forest winters have lost cold, snowy conditions that are ...
2019年8月7日 · We show that cold and snow covered conditions have generally decreased over the past 100 years. These trends suggest positive outcomes for tree health as related to reduced fine root mortality and nutrient loss associated with winter frost but negative outcomes as related to the northward advancement and proliferation of forest insect pests.
Climate Change, Winter Warming Harming Northeastern Forests
2018年12月11日 · Our work shows how often-overlooked changes in winter climate can impact forest ecosystems. Losing snowpack can reduce forest growth, carbon sequestration, and nutrient retention, which will have important implications for climate change and air and water quality all …
The drought‒dieback‒death conundrum in trees and forests
2021年4月9日 · These rare, extreme droughts have triggered episodes of forest dieback that have led to reduced productivity and rising mortality rates, usually at small scales (dieback hotspots), but affecting biomes worldwide. Aims: This review summarizes and discusses the drivers, patterns and mechanisms of forest dieback caused by drought.
Forest Ecology and Management - ScienceDirect
2010年2月5日 · Although episodic mortality occurs in the absence of climate change, studies compiled here suggest that at least some of the world's forested ecosystems already may be responding to climate change and raise concern that forests may become increasingly vulnerable to higher background tree mortality rates and die-off in response to future warming ...
Drought- and heat-induced mortality of conifer trees is explained …
2024年4月12日 · We used a common garden experiment with 20 conifer tree species to quantify mortality after three consecutive hot, dry summers and tested whether mortality could be explained by putative underlying mechanisms, such as stem hydraulics and legacies affected by leaf life span and stem growth responses to previous droughts.