搜索结果: 61-75 共查到“国际动态 土壤学”相关记录132条 . 查询时间(1.746 秒)
俄科学家研制出净化油污土壤的生物吸附剂
俄科学家 净化油污土壤 生物吸附剂
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2017/7/28
据俄塔斯社消息，西伯利亚列舍特涅夫国立大学的科学家研制出一种用于净化油污土壤、恢复植被层的生物吸附剂。该吸附剂由多孔聚合材料制成。1立方米吸附剂能吸收1吨石油，是同类产品的7-10倍。吸附剂内含从石油污染地区土壤中分离而得的石油氧化微生物，能将石油分解为无毒简单化合物。
Decomposing leaves are a surprising source of greenhouse gases
Decomposing leaves greenhouse gases
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2017/7/21
Michigan State University scientists have pinpointed a new source of nitrous oxide, a greenhouse gas that’s more potent than carbon dioxide. The culprit?
Tiny bits of decomposing leaves in soil.This ...
Biochar provides high-definition electron pathways in soil
Biochar high-definition electron pathways soil
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2017/4/27
All plants need electrons to aid biological and chemical tasks. Cornell University scientists have discovered a new high-definition system that allows electrons to travel through soil farther and more...
The top 2 inches of topsoil on all of Earth’s landmasses contains an infinitesimal fraction of the planet’s water — less than one-thousandth of a percent. Yet because of its position at the interface ...
Losses of soil carbon under global warming might equal U.S. emissions
soil carbon under global warming U.S. emissions
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2016/12/13
For decades scientists have speculated that rising global temperatures might alter the ability of soils to store carbon, potentially releasing huge amounts of carbon into the atmosphere and triggering...
Soil moisture,snowpack data could help predict 'flash droughts'
Soil moisture snowpack data flash droughts
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2016/11/4
New research suggests that "flash droughts" — like the one that unexpectedly gripped the Southern Rockies and Midwest in the summer of 2012 — could be predicted months in advance using soil moisture a...
IU study:During drought,dry air can stress plants more than dry soil
IU study drought dry air stress plants dry soil
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2016/9/12
Newly published research by Indiana University scientists finds that low relative humidity in the atmosphere is a significant, growing and often under-appreciated cause of plant stress in hot, dry wea...
日本理化研究所环境资源研究中心菊地淳领导的国际研究小组开发出“利用半碳化生物质改良土壤综合评价法”，可通过综合分析土壤的物理、化学和生物学特征对土壤进行改良。土壤由大小不一的沙石、经微生物分解后残留的腐殖质以及由雨水、河川等带入的矿物质等多种物质组成。这些物质交织形成团粒结构，使土壤保持适度水分，并通过空气通道向植物和土壤生物提供氧气。
半碳化生物质可用于土壤改良
半碳化生物质 土壤改良
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2016/6/21
日本理化研究所环境资源研究中心菊地淳领导的国际研究小组开发出“利用半碳化生物质改良土壤综合评价法”，可通过综合分析土壤的物理、化学和生物学特征对土壤进行改良。土壤由大小不一的沙石、经微生物分解后残留的腐殖质以及由雨水、河川等带入的矿物质等多种物质组成。这些物质交织形成团粒结构，使土壤保持适度水分，并通过空气通道向植物和土壤生物提供氧气。
Phosphorus ‘tax’ could be huge if tropical farming intensifies
Phosphorus tax tropical farming intensifies
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2016/4/25
One way to feed the globe’s growing population is to ramp up intensive farming in tropical regions, but doing so will require a lot of fertilizer — particularly phosphorus. This is not only because it...
UD prof studies how permafrost thawing affects vegetation,carbon cycle
UD prof permafrost thawing vegetation carbon cycle
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2016/3/11
“There is a lot of carbon frozen in the Arctic soil’s permafrost layer. If this all thaws out, prevailing thought is that the carbon in the soil could be released to the atmosphere and potentially acc...
Rice University scientists are cleaning soil contaminated by oil spills in a way that saves energy and reclaims the soil’s fertility.They use a process known as pyrolysis, which involves heating ...
Three new Engineering Research Centers will advance U.S. resiliency and sustainability
Three new Engineering Research Centers U.S. resiliency sustainability
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2015/8/13
The National Science Foundation (NSF) has invested $55.5 million in three new Engineering Research Centers (ERCs) to create novel technology platforms and transform industries. These three ERCs will a...
University of Oregon geologists have seen ridges and valleys form in real time and — even though the work was a fast-forwarded operation done in a laboratory setting — they now have an idea of how cli...
A tale of two (soil) cities（图）
two (soil) cities
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2015/7/13
As we walk along a forest path, the soil beneath our feet seems like a uniform substance. However, it is an intricate network of soil particles, pores, minerals, soil microbes, and more. It is awash i...