搜索结果: 1-15 共查到“农学 air”相关记录99条 . 查询时间(0.092 秒)
California's air quality regulations help farmers prosper（图）
California air quality regulations farmers prosper
2020/3/23
Farmers in California's Central Valley have seen a boost in the productivity of their high-value crops -- and greater earnings -- as a result of the Golden State's air pollution controls.Perennial cro...
Genetic modification of poplar trees saves air quality（图）
Genetic modification poplar trees air quality
2020/1/10
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...
Effects of air pollution on carbon sequestration potential in two tropical forests of West Bengal, India
Airpollution Allometricequations BallavpurWildlifeSanctuary Barjoraforest Importancevalueindex
2019/6/3
Tropical forests store more carbon in their above ground biomass than other forest habitats. Species and site specific allometric equations are desired to evaluate precise and dependable results of tr...
IU study:During drought,dry air can stress plants more than dry soil
IU study drought dry air stress plants dry soil
2016/9/6
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...
Effective moisture diffusivity during hot air solar drying of tomato slices
falling rate period Fick’s second law mathematical models solar dryer swivel collector
2016/4/5
Mathematical modelling and effective moisture diffusivity of tomato (Lycopersicon esculentum) was studied during hot
air solar drying. An experimental solar dryer with a swivel collector was used fo...
Air Quality and Ozone Pollution Models for Forested Areas May Be Too Simple
Air Quality Ozone Pollution Models Forested Areas Too Simple
2015/9/29
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...
The influence of housing systems on the air quality and bacterial eggshell contamination of table eggs
conventional cage system aviary air hygiene eggshell microorganisms
2015/6/8
This paper compares two different housing systems for laying hens producing table eggs, namely a conventional cage system and an aviary, during three summer months, starting from the 20th week of the ...
The dynamics of changes in selected parameters in relation to different air temperature in the farrowing house for sows
sows air temperature reproductive parameters average daily weight gain
2015/6/5
The purpose of this study was to analyse the influence of different external air temperature on changes in the air temperature of housing environment in the farrowing house for sows and consequent cha...
Effects of high air temperatures on milk efficiency in dairy cows
dairy cows milk production milk composition high air temperatures elevation housing breed cooling
2015/6/2
26 herds with 71 586 individual records were used. We tested a hypothesis that milk efficiency was influenced by the elevation of the farm, housing system, breed, area of altitude, and by the cooling ...
COMPARISONS OF AEROSOL OPTICAL DEPTH PROVIDED BY SEVIRI SATELLITE OBSERVATIONS AND CAMx AIR QUALITY MODELLING
Aerosol Optical Depth (AOD), Satellite data
2015/5/6
Satellite data provide high spatial coverage and characterization of atmospheric components for vertical column. Additionally, the use of air pollution modelling in combination with satellite data o...
Climate change, air pollution and global challenges. Understanding and perspectives from forest research
Climate change air pollution global challenges
2015/5/5
Th e current public debate on changes in the global biosphere including climate change is much focused on
CO2
in the atmosphere. As far as forests are involved the trees are considered with respect...
Growth of Norway spruce (Picea abies [L.] Karsten) from artificial and natural regeneration in the Krkonoše Mts. and air temperature variability
climate regression models 8th forest altitudal zone reforestation
2015/4/24
Our research was concerned with a description of the influence of variability in average temperatures on the height growth of selected young populations of spruce in the Krkonoše Mts. Several pop...
Mycobacteria in water, soil, plants and air: a review
Mycobacterium water soil plant vegetables air biofilm
2015/4/15
Amazingly, despite the 24 143 papers on mycobacteria, indexed in the Web of Science database during the last six years, published by 67 008 authors from 13 128 organizations located in 166 countries o...
Red deer density in the air-polluted area of forest ecosystems in the Krušné hory Mts. – Klášterec nad Ohří Forest District
deer count pellet group red deer
2015/3/27
The density of red deer in the area of forest ecosystems disturbed by air pollution in the Krušné hory Mts. – Klášterec nad Ohří Forest District was determined in two model hunting dist...
Earthworms (Lumbricidae) of an air-polluted area affected by ameliorative liming
forest ecosystem Kruš né hory Mts. liming Lumbricidae soil chemistry
2015/3/27
The study was aimed at the area of the Krušné hory Mts. with stands of substitute species, soils disturbed by long-term acidification and affected repeatedly by aerial ameliorative liming. Ten sp...