Growth in stem diameter of Larix principis-rupprechtii and its response to meteorological factors in the south of Liupan Mountain, China

Future climate change can impact ozone concentrations by changing regional meteorological factors related to ozone (O3) pollution. To better understand the variations of meteorological factors and their effects on O3 formation processes under future climate conditions, we model the present and the future meteorology and air quality in summer over the Yangtze River Delta (YRD) region by using the Weather Research and Forecasting Model with Chemistry module (WRF/Chem), which is driven by the outputs of Community Climate System Model version 4 (CCSM4). The simulations predict that solar radiation, 2-m air temperature, and wind speed increase in the daytime over most of the YRD region. Absolute humidity and precipitation increase in the north and decrease in the south, while the planetary boundary layer height (PBLH) has an opposite change pattern displaying a decrease in the north and an increase in the south. The southerly wind will be strengthened in the daytime. At night, the change patterns of the meteorological factors are similar to the daytime but with small variations. Meanwhile, O3 and its precursors all increase in the north and decrease in the south. The increases of NOx, volatile organic compounds (VOC), and CO are related with the decreases of PBLH and the input effect of stronger southerly wind, while the decreases are attributed to the output effect of the stronger southerly wind. During the daytime, the increase of surface O3 in the north is dominated by the chemical processes related with the increases of solar radiation, air temperature, and O3 precursors. The decrease of surface O3 in the south is mainly caused by the transport process changing with the strengthened southerly wind. At night, the surface O3 changing the amplitude is less than the daytime. The less O3 variations at night can be attributed to an O3 titration reaction with NO, the changes in NOx concentrations, and the increases of nocturnal PBLH. With the aid of H2O2/HNO3, O3 formation in the YRD region is found to be easily affected by NOx in the future. The findings can help to understand the changing trend of O3 in the YRD region and can propose reasonable pollution control policies.

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Relationship between the Dominant Occurrence of Microcystis aeruginosa and Water Quality or Meteorological Factors in the South Basin of Lake Biwa.

NIPPON SUISAN GAKKAISHI ◽

10.2331/suisan.63.531 ◽

1997 ◽

Vol 63 (4) ◽

pp. 531-536 ◽

Cited By ~ 1

Author(s):

Yoichi Yoshida

Keyword(s):

Water Quality ◽

Microcystis Aeruginosa ◽

Lake Biwa ◽

Meteorological Factors ◽

The South ◽

South Basin

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Meteorological Factors Influence on Hospitalization for Respiratory Diseases And Symptoms in the South Israel

Epidemiology ◽

10.1097/00001648-200611001-01133 ◽

2006 ◽

Vol 17 (Suppl) ◽

pp. S423-S424

Author(s):

M Friger ◽

N Yackerson ◽

A Bolotin ◽

E Kordysh

Keyword(s):

Respiratory Diseases ◽

Meteorological Factors ◽

The South

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Nursery performance of potentially promising rootstocks for citriculture in the south of Brazil

Ciência Rural ◽

10.1590/0103-8478cr20200227 ◽

2022 ◽

Vol 52 (1) ◽

Author(s):

Léo Omar Duarte Marques ◽

Paulo Mello-Farias ◽

Roberto Pedroso de Oliveira ◽

Maximiliano Dini ◽

Rodrigo Fernandes dos Santos ◽

...

Keyword(s):

Mortality Rate ◽

Plant Height ◽

Mortality Rates ◽

Stem Diameter ◽

Trifoliate Orange ◽

The South ◽

Rangpur Lime ◽

Bud Set ◽

Consequent Reduction ◽

South Of Brazil

ABSTRACT: Diversification of rootstock varieties, with consequent reduction in phytosanitary risks, has great importance to the sustainability of citrus cultivation in the south of Brazil. This study evaluated the performance of 42 rootstocks in the nursery phase to generate ‘Valencia Late’ sweet orange seedlings. Therefore, nucellar seedlings from the rootstocks under study were analyzed in relation to plant height, stem diameter, mortality rate and percentage of bud set after grafting. The experimental design was completely randomized with four replications of 20 sample units. Not adapted genotypes had high mortality rates, and the ones of both hybrids LCR x CTSW - 009 and LVK x LCR - 038 were 100% and 90%, respectively. Other 13 genotypes had mortality rates above 30%, and ‘Sunki’ mandarin was the female genitor of ten of them. ‘Swingle’ citrumelo was the rootstock with the highest development (plant height and stem diameter), associated with low mortality rate. In relation to the other rootstocks, the best results were the fast grafting diameter, associated with low mortality rate obtained by hybrids HTR - 053, LRF x (LCR x TR) - 005, CLEO x TRBN - 245, CLEO x TRSW - 287, and citrandarins ‘Indio’, ‘Riverside’ and ‘San Diego’, as well as Trifoliate orange and ‘Rangpur’ lime. In addition to Trifoliate orange, which is widely used in Rio Grande do Sul, these rootstocks have great potential in citriculture in the south of Brazil.

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Effect of weather conditions on acute laryngotracheitis

The Journal of Laryngology & Otology ◽

10.1017/s0022215100108400 ◽

1989 ◽

Vol 103 (2) ◽

pp. 187-190 ◽

Cited By ~ 9

Author(s):

C. P. Fielder

Keyword(s):

Relative Humidity ◽

Wind Direction ◽

Meteorological Factors ◽

Weather Conditions ◽

Barometric Pressure ◽

The South ◽

Significant Difference ◽

Viral Croup ◽

Nose And Throat

AbstractThe aim of the study was to examine the incidence of croup in the Swansea area and to determine whether meteorological factors have any effect on the incidence of acute laryngotracheitis requiring hospitalization.447 patients with a diagnosis of acute viral croup were admitted to the Ear, Nose and Throat Department of Singleton Hospital, Swansea, between January 1st 1980 and December 31st 1984.There was no significant difference between days with and without croup admissions, with respect to barometric pressure or relative humidity. Maximum and minimum temperatures were significantly lower on days with croup admissions (p>0.001).Wind direction appeared to influence the number of admissions, which were increased when the wind was from the south-east (p>0.01).

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Presidential Republicanism in the South, 1960

The Journal of Politics ◽

10.1017/s002238160001656x ◽

1962 ◽

Vol 24 (2) ◽

pp. 303-322 ◽

Cited By ~ 3

Author(s):

Bernard Cosman

Keyword(s):

The South

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Long-term Cyclic Variations of Prominences, Green and Red Coronae over Solar Cycles

International Astronomical Union Colloquium ◽

10.1017/s0252921100064496 ◽

2000 ◽

Vol 179 ◽

pp. 201-204

Author(s):

Vojtech Rušin ◽

Milan Minarovjech ◽

Milan Rybanský

Keyword(s):

Emission Lines ◽

High Latitudes ◽

Green Line ◽

Solar Cycles ◽

The South ◽

Coronal Emission ◽

Local Maxima ◽

The North ◽

Cyclic Variations

AbstractLong-term cyclic variations in the distribution of prominences and intensities of green (530.3 nm) and red (637.4 nm) coronal emission lines over solar cycles 18–23 are presented. Polar prominence branches will reach the poles at different epochs in cycle 23: the north branch at the beginning in 2002 and the south branch a year later (2003), respectively. The local maxima of intensities in the green line show both poleward- and equatorward-migrating branches. The poleward branches will reach the poles around cycle maxima like prominences, while the equatorward branches show a duration of 18 years and will end in cycle minima (2007). The red corona shows mostly equatorward branches. The possibility that these branches begin to develop at high latitudes in the preceding cycles cannot be excluded.

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