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How Much Drought Can a Forest Take?
Drought Forest
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2017/2/16
Why do some trees die in a drought and others don’t? And how can we predict where trees are most likely to die in future droughts?Scientists from the University of California, Davis, and colleagues ex...
Tree-bark thickness indicates fire-resistance in a hotter future
Tree-bark thickness fire-resistance hotter future
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2017/2/16
A new study has found that trees worldwide develop thicker bark when they live in fire-prone areas. The findings suggest that bark thickness could help predict which forests and savannas will survive ...
Scientists create ice storms to study nature's chilly response
Scientists create ice storms nature's chilly
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2016/12/13
Anyone who has ever driven in freezing rain knows all too well the potential hazards of an ice storm. These powerful winter weather events are also capable of catastrophic ecological and socio-economi...
Scientists create ice storms to study nature's chilly response
Scientists create ice storms nature's chilly response
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2016/12/27
Anyone who has ever driven in freezing rain knows all too well the potential hazards of an ice storm. These powerful winter weather events are also capable of catastrophic ecological and socio-economi...
Forest die-offs ricochet to distant ecosystems
Forest die-offs distant ecosystems
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2016/11/29
Major forest die-offs due to drought, heat, beetle infestations or deforestation could have consequences far beyond the local landscape, results from a new study show.According to a paper published to...
Large forest die-offs can have effects that ricochet to distant ecosystems
Large forest die-offs ricochet distant ecosystems
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2016/11/29
Major forest die-offs due to drought, heat and beetle infestations or deforestation could have consequences far beyond the local landscape.Wiping out an entire forest can have significant effects on g...
Earlier snowmelt carries drastic consequences for forests
snowmelt drastic consequences forests
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2016/8/11
Earlier snowmelt periods associated with a warming climate may hinder subalpine forest regulation of atmospheric carbon dioxide (CO2), according to the results of a new University of Colorado Boulder ...
Neutralizing acidic forest soils boosts tree growth,causes spike in nitrogen export
Neutralizing acidic soils tree growth causes spike nitrogen export
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2016/7/4
A legacy of acid rain has acidified forest soils throughout the northeastern US, lowering the growth rate of trees. In an attempt to mitigate this trend, in 1999 scientists added calcium to an experim...
China’s forest recovery shows hope for mitigating global climate change
China’s forest mitigating global climate change
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2016/3/28
China’s sweeping program to restore forests across the country is working. The vast destruction of China’s forests, leveled after decades of logging, floods and conversion to farmland, has become...
New insights into the seasonality of Amazon's evergreen forests
seasonality Amazon evergreen forests
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2016/3/2
Sometimes you can't see the forest for the trees. In the Amazon, the opposite is true: without truly seeing the trees, you can't "see" the forest and understand the seasonal patterns of photosynthesis...
Increasing drought threatens almost all U.S. forests
Increasing drought U.S. forests
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2016/2/23
Forests nationwide are feeling the heat from increasing drought and climate change, according to a new study by scientists from 14 research institutions.
"Over the last two decades, warming temperatu...
Air Quality and Ozone Pollution Models for Forested Areas May Be Too Simple
Air Quality Ozone Pollution Models Forested Areas Too Simple
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2015/10/13
A new study assessing the influence of species diversity of canopy trees on the amount of ozone precursors a forest emits suggests that atmospheric chemistry models in use now may underestimate the im...
绘图估算全球树木约为3.04万亿棵
绘图 全球树木 3.04万亿棵
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2015/9/6
一组包括中国、美国等科学家在内的团队日前进行了一项生态学研究，对除南极洲外的全球树木密度分析显示，地球上树木数量略高于3万亿。该项研究突破了以往遥感技术只能估算出世界森林面积的缺憾，将有助于了解地球的系统动力学以及促进环境管理工作。迄今为止，政策制定者和科学家们都是依靠卫星图像来做出对于世界森林面积的估算的。但是这种遥感技术不能明确给出树木的数目、密度抑或是木材储量，而这几组数据对了解生物过程和生...
New Tropical Tree Species Await Discovery
Tropical Tree Species Await Discovery
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2015/6/18
A global analysis raises the minimum estimated number of tropical tree species to at least 40,000–53,000 worldwide in a paper appearing in Proceedings of the National Academy of Science...
欧盟在森林高附加值技术开发上取得重要进展
欧盟 森林 技术开发
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2014/11/21
森林工业是欧盟经济的重要组成部分。森林不仅是纸浆与造纸和木材加工工业的重要原料来源，而且一系列重要化合物和珍贵活性物质的重要来源地，是人类共同的资源宝库。然而迄今为止，森林的潜在价值远未得到完全开发，甚至被作为废弃物而丢弃浪费。比如，现如今的通用纸浆加工技术，只有不到50%的原料生物质，被转化为纸浆用于造纸，其余超过一半的原料生物质则成为低价值的副产品，造成资源极大浪费。