搜索结果: 1-12 共查到“国际动态 农学 R-Tree”相关记录12条 . 查询时间(0.084 秒)
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Tree cover increased in Southeast Michigan over the past 30 years(图)
Tree cover increased Southeast Michigan over past 30 years
2020/8/14
The extent of both tree canopy and urban sprawl increased in Southeast Michigan between 1985 and 2015, according to a new University of Michigan study that used aerial photos and satellite i...
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Bedrock type under forests greatly affects tree growth, species, carbon storage(图)
Bedrock type under forests greatly tree growth species carbon storage
2020/6/19
A forest's ability to store carbon depends on the bedrock beneath, according to Penn State researchers who studied forest productivity and composition and the physical characteristics of roc...
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Not falling far from the tree: Ecologists study seed-to-seedling transition(图)
tree Ecologists study seed-to-seedling transition
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...
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Hands-on model helps forest stakeholders fight tree disease(图)
Hands-on model forest stakeholders fight tree disease
2019/10/30
When a new, more aggressive strain of the pathogen that causes sudden oak death turned up in Oregon, scientists and stakeholders banded together to try to protect susceptible trees and the region's va...
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When a Tree Falls in St. Louis, Will the Power Go Out?(图)
Tree Falls St. Louis Power Go Out
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...
Lianas Stifle Tree Fruit and Seed Production in Tropical Forests
Tree Fruit Seed Production Tropical Forests
2017/7/21
Woody vines, known as lianas, compete intensely with trees and their numbers are on the rise in many tropical forests around the world. A new study at the Smithsonian Tropical Research Institute (STRI...
Tree-bark thickness indicates fire-resistance in a hotter future
Tree-bark thickness fire-resistance hotter future
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 ...
Neutralizing acidic forest soils boosts tree growth,causes spike in nitrogen export
Neutralizing acidic soils tree growth causes spike nitrogen export
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...
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...
Scientists at UQ’s Queensland Alliance for Agriculture and Food Innovation (QAAFI) have discovered that one of Australia’s best known folk remedies might help to alleviate the sheep industry’s biggest...
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Forest Tree Species Diversity Depends on Individual Variation(图)
Forest Tree Species Diversity Individual Variation
2010/3/4
Models clearly show that the coexistence of competing species depends on those species responding differently to the availability of resources. Then why do studies comparing competing tree species dra...