搜索结果: 1-15 共查到“林学 trees”相关记录89条 . 查询时间(0.218 秒)
Soil amendment improves carbon sequestration by trees on severely damaged acid and metal impacted landscape, but total storage remains low
Carbon sequestration Tree restoration Jack pine White birch Acidification Impacted landscape Soil organic carbon
2024/1/11
Landscape carbon storage is a key component of climate change mitigation. Tree planting on degraded land has been identified as an effective carbon capture strategy, but it is unclear how various asso...
Using TLS-Measured Tree Attributes to Estimate above Ground Biomass in Small Black Spruce Trees
terrestrial laser scanning biomass black spruce allometric equations
2023/12/8
Research Highlights: This study advances the effort to accurately estimate the biomass of trees in peatlands, which cover 13% of Canada’s land surface. Background and Objectives: Trees remove carbon f...
Non-Additive Effects of Mixing Eucalyptus and Castanopsis hystrix Trees on Carbon Stocks under an Eco-Silviculture Regime in Southern China
carbon storage mixed-species plantation Eucalyptus plantation synergistic effect silviculture regime
2023/12/6
Eucalyptus plantations harbor great potential for supporting ecosystem services, but this prospect is weakened under long-term traditional silviculture regimes. To reform these traditional silvicultur...
Higher leaf nitrogen content is linked to tighter stomatal regulation of transpiration and more efficient water use across dryland trees
arid ecosystems ci/ca ratio leafδ13C leaf δ18O plant isotopic composition
2023/11/28
The least-cost economic theory of photosynthesis shows that water and nitrogen are mutually substitutable resources to achieve a given carbon gain. However, vegetation in the Sahel has to cope with th...
Riparian Dendrochemistry: Detecting Anthropogenic Gadolinium in Trees along an Effluent-Dominated Desert River
dendrochemistry gadolinium rare earth elements riparian Populus fremontii cottonwood trees ecological monitoring
2023/11/22
This research documents spatial and temporal patterns of effluent uptake by riparian trees through development of a new and innovative application for dendrochronology, specifically dendrochemistry. T...
In a warming world, New England's trees are storing more carbon（图）
warming world New England trees storing more carbon
2020/8/14
Climate change has increased the productivity of forests, according to a new study that synthesizes hundreds of thousands of carbon observations collected over the last quarter-century. The ...
北京大学城市与环境学院刘鸿雁教授课题组在Communications Biology期刊上发表题为“Drought-modulated allometric patterns of trees in semi-arid forests”的论文（图）
刘鸿雁 教授 半干旱区森林 树木生长
2020/8/20
北京大学城市与环境学院刘鸿雁教授课题组7月30日在Communications Biology期刊上发表题为“Drought-modulated allometric patterns of trees in semi-arid forests”的论文。课题组与中科院植物所、英国埃克塞特大学、德国马普生物地球化学研究所同行合作，借助地基激光雷达，系统地研究了我国北方地区广泛分布的蒙古栎（Querc...
Warming reduces trees' ability to slow climate change（图）
Warming reduces trees ability slow climate change
2020/7/10
The world's forests play an important role in mitigating climate change. Trees are carbon sinks -- they absorb more carbon dioxide than they emit. But according to new National Science Foundation...
Long-lived tropical trees play outsized role in carbon storage（图）
Long-lived tropical trees outsized role carbon storage
2020/4/17
Trees that grow fast, live long lives and reproduce slowly account for the bulk of the biomass -- and carbon storage -- in some tropical rainforests, a team of scientists reports in a paper published ...
The life and death of one of America's most mysterious trees（图）
life and death America mysterious trees
2020/3/27
A majestic ponderosa pine, standing tall in what is widely thought to have been the "center of the world" for the ancestral Puebloan people, may have more mundane origins than previously believed, acc...
Genetic modification of poplar trees saves air quality（图）
Genetic modification poplar trees air quality
2020/1/19
Poplar trees are widely used in commercial products, but, like several other tree species, they emit gases to the atmosphere that worsen air pollution and alter climate. Now field trials in Oregon and...
Catastrophic events carry forests of trees thousands of miles to burial at sea（图）
Catastrophic events forests rees thousands miles to burial at sea
2019/11/5
Flooding from torrential rains caused by cyclones and monsoons, as well as other catastrophic events, may move huge amounts of fresh wood to watery graves deep under the ocean, scientists have discove...
How Do Tilia Cordata Greenspire Trees Cope with Drought Stress Regarding Their Biomass Allocation and Ecosystem Services?
biomass allocation drought ecosystem services root:shoot ratio urban trees
2024/3/4
In the context of climate change, drought is likely to become more frequent and more severe in urban areas. Urban trees are considered to play an important role in fixing carbon, improving air quality...
How trees affect the weather（图）
trees affect weather
2019/10/28
New NSF-supported research led by University of Utah biologists William Anderegg, Anna Trugman and David Bowling finds that some plants and trees are prolific spendthrifts in drought conditions, using...
City trees can offset neighborhood heat islands（图）
City trees offset neighborhood heat islands
2019/11/22
The concept of heat islands -- densely built-up urban areas that are hotter than the rural and semi-rural landscapes around them -- has been extensively studied and is widely accepted.Now a new study ...