搜索结果: 46-60 共查到“国际动态 林业基础学科”相关记录119条 . 查询时间(2.693 秒)
海平面上升威胁红树林（图）
海平面上升 红树林
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2020/6/8
近日，一项新研究分析了全新世冰川消退对红树林生长的影响，让人们得以一窥生态系统将如何应对未来迅速上升的海平面。澳大利亚麦考瑞大学、美国罗格斯大学等机构研究人员在《科学》杂志上发表论文称，如果温室气体排放不减少，到2050年，红树林将无法承受海平面上升之重。红树林主要分布在温暖气候地区，是宝贵的沿海生态系统。红树林储存了大量的碳，有助于保护海岸线，为鱼类和其他物种提供栖息地。研究人员利用过去1万年的...
Long-lived tropical trees play outsized role in carbon storage（图）
Long-lived tropical trees outsized role carbon storage
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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
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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...
Not falling far from the tree: Ecologists study seed-to-seedling transition（图）
tree Ecologists study seed-to-seedling transition
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2020/3/6
Why are there so many species of plants? Why do some plants thrive, while others don't?Ecologist Noelle Beckman of Utah State University and her colleagues explore these questions in new fin...
Hurricanes fertilize mangrove forests, shape Florida Everglades（图）
Hurricanes mangrove forests shape Florida Everglades
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2020/2/28
The destructive power of a hurricane appears to be good news for mangroves in the Florida Everglades.When Category 3 hurricanes Wilma (2005) and Irma (2017) struck Florida, mangroves took a beating, e...
Genetic modification of poplar trees saves air quality（图）
Genetic modification poplar trees air quality
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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...
A study by NSF-funded scientists Andy MacDonald at UC Santa Barbara and Erin Mordecai at Stanford found a direct relationship between deforestation in the Amazon and the transmissi...
In a world with rising levels of atmospheric carbon dioxide, experiments have shown that increased CO2 allows plants to photosynthesize more and use less water; however, warmer temperatures drive plan...
Catastrophic events carry forests of trees thousands of miles to burial at sea（图）
Catastrophic events forests rees thousands miles to burial at sea
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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...
来自俄科学院西伯利亚分院网站的报道，该分院克拉斯诺亚尔斯克科学中心的科研团队通过对人工智能系统进行培训使其能够根据地球遥感数据对植被类型进行分类，并确定生物群落的边界，该系统能够很好地识别林带，可用于跟踪林带边界的变化。相关成果发布在IOP Conference Series: Materials Science and Engineering国际学术会议的论文集中。西伯利亚分院克拉斯诺亚尔斯克科...
How trees affect the weather（图）
trees affect weather
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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...
Tropical soil disturbance could be hidden source of carbon dioxide（图）
Tropical soil disturbance hidden source carbon dioxide
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2019/10/28
Thousand-year-old tropical soils unearthed by accelerating deforestation and agricultural land use could be unleashing carbon dioxide into the atmosphere, according to a new study by NSF-funded resear...
Native forests make up one percent of the landscape in South Africa. But these forests could play key roles in reducing atmospheric carbon and identifying sustainable development practices that can be...
'Ghost forests' show visible results of changes in climate（图）
Ghost forests results changes in climate
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2019/10/30
Sea level rise will have the greatest impacts on rural land in places where knowledge is insufficient to best inform decisions about encroaching marshlands, according to a review published in the jour...
When a Tree Falls in St. Louis, Will the Power Go Out?（图）
Tree Falls St. Louis Power Go Out
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2019/10/30
In a study recently published in Sensors, Saint Louis University researchers paired satellite imaging data with machine learning techniques to map local tree species and help manage the health of urba...