Estimation of mean annual extreme minimum temperature raster and predicting the potential distribution for Ipomoea triloba using Proto3 model in the Korean peninsula

2019 ◽  
Vol 37 (4) ◽  
pp. 759-768
Author(s):  
Yong Ho Lee ◽  
Tae Yang Choi ◽  
Ga Eun Lee ◽  
Chea Sun Na ◽  
Sun Hee Hong ◽  
...  
Keyword(s):  
Korean Peninsula ◽  
Minimum Temperature ◽  
Potential Distribution ◽  
Extreme Minimum Temperature ◽  
Ipomoea Triloba

scholarly journals Temperature Change and Its Elevation Dependency in the Source Region of the Yangtze River and Yellow River

2014 ◽  
Vol 6 (2) ◽  
pp. 124 ◽  
Author(s):  
Chongyi E ◽  
Hongchang Hu ◽  
Hong Xie ◽  
Yongjuan Sun
Keyword(s):  
Temperature Change ◽  
Minimum Temperature ◽  
Yangtze River ◽  
Yellow River ◽  
Source Region ◽  
Maximum Temperature ◽  
Climatic Data ◽  
The Yangtze River ◽  
Extreme Minimum Temperature ◽  
The Mean

The study of temperature change and its elevation dependency in the source region of the Yangtze River and Yellow River have been insufficient owing to the lack of adequate observation stations and long-term climatic data. In this study five temperature indices of 32 stations from 1961 to 2007 in and near the source region are used. The 32 stations all have experienced significant warming; the warming amplitudes are higher than the mean warming amplitude of the Qinghai-Tibetan plateau. The warming amplitudes and the numbers of stations showing significant warming trends in mean minimum temperature and extreme minimum temperature are higher than that of the mean maximum temperature and extreme maximum temperature. The elevation dependency of climatic warming and the amount of significant warming stations are not obvious; the influence of human activity and urbanization may be higher. The warming amplitudes of 26 stations above 3000 m tend to be uniform, and there is no significant law at 6 stations below 3000 m. On the contrary, the ratio of stations showing significant warming in minimum temperature above 4000 m is far less than that of the stations below 4000 m.

scholarly journals Extreme Minimum Temperature Zones of British Columbia

2014 ◽  
Author(s):  
D W McKenney ◽  
J H Pedlar ◽  
K Lawrence ◽  
P Papadopol ◽  
K Campbell ◽  
...  
Keyword(s):  
British Columbia ◽  
Minimum Temperature ◽  
Extreme Minimum Temperature

scholarly journals Extreme Minimum Temperature Zones of parts of the Prairie provinces

2014 ◽  
Author(s):  
D W McKenney ◽  
J H Pedlar ◽  
K Lawrence ◽  
P Papadopol ◽  
K Campbell ◽  
...  
Keyword(s):  
Minimum Temperature ◽  
Extreme Minimum Temperature ◽  
Prairie Provinces

Invasion of tallow tree into southern US forests: influencing factors and implications for mitigation

2009 ◽  
Vol 39 (7) ◽  
pp. 1346-1356 ◽  
Author(s):  
Jianbang Gan ◽  
James H. Miller ◽  
Hsiaohsuan Wang ◽  
John W. Taylor
Keyword(s):  
Influencing Factors ◽  
Tree Species ◽  
Minimum Temperature ◽  
Mitigation Strategies ◽  
Triadica Sebifera ◽  
Climate Trend ◽  
Southern Us ◽  
Warming Climate ◽  
Tallow Tree ◽  
Extreme Minimum Temperature

We identify species–environment relationships to predict the occurrence of Chinese tallow ( Triadica sebifera (L.) Small) on forestlands in the southern US, where it has emerged as the most pervading, stand-replacing, alien tree species. Tallow invasions are more likely to be observed on low and flat lands, areas adjacent to water and roadways, sites recently harvested or disturbed, younger stands, and private forestlands. The winter extreme minimum temperature tends to restrain tallow northward migration. Increases in both range and severity of tallow invasions are predicted with a warming climate trend, and the situation could be worse if the warming is coupled with an increased frequency and intensity of disturbances. Monitoring and mitigation strategies are proposed to assist this region and other countries threatened by tallow invasions.

scholarly journals Áreas potenciales para el cultivo de girasol en condiciones de temporal en Guanajuato, México

2018 ◽  
Vol 29 (2) ◽  
pp. 305 ◽  
Author(s):  
Enrique López-Rocha ◽  
Ana Isabel Mireles-Arriga ◽  
Jesús Hernández-Ruíz ◽  
Jorge Eric Ruiz-Nieto ◽  
Armado Rucoba-Garcia
Keyword(s):  
Relative Humidity ◽  
Solar Radiation ◽  
Crop Yield ◽  
Minimum Temperature ◽  
Potential Distribution ◽  
Moisture Regime ◽  
Average Temperature ◽  
Bioclimatic Variables ◽  
Rainfed Conditions ◽  
Sunflower Crop

In Mexico, in the last five years, there was a 189.50 to 13 219.84 hectares increase in sunflower crop surface under rainfed conditions. Particularly, in 2016, in the state of Guanajuato, approximately 450 hectares were planted. Cultivation under rainfed conditions requires planning including bioclimatic variables to reach the optimal crop yield and development. This work aims to identify bioclimatic potential areas for sunflower cultivation under rainfed conditions in Guanajuato. In autumn-winter 2016, 45 sunflower fields (distributed in eleven towns) were monitored and stratified. Crop yield associated with maximum and minimum temperature, relative humidity, solar radiation, precipitation, and evapotranspiration were recorded. The data from fields with a higher yield than 1.89 t/ha were used to generate polygons with a saturation of 56 abundance points, to calculate the potential distribution using the Maxent software, with 23 bioclimatic variables as predictors. The variables with the highest contribution percentage to the potential distribution were: average temperature of the driest quarter, altitude, moisture regime, and edaphic profile. The potential areas for sunflower cultivation had a surface of 317 028 hectares where the predominant climate is sub-humid warm, the annual mean temperature is 20 °C, the annual mean rainfall is 600 to 800 mm, and the altitude ranges from 500 to 1500 masl.

scholarly journals Extreme Minimum Temperature Zones of Parts of Central and Western Canada

2014 ◽  
Author(s):  
D W McKenney ◽  
J H Pedlar ◽  
K Lawrence ◽  
P Papadopol ◽  
K Campbell ◽  
...  
Keyword(s):  
Minimum Temperature ◽  
Western Canada ◽  
Extreme Minimum Temperature

Characteristics of wintertime daily and extreme minimum temperature over South Korea

2004 ◽  
Vol 24 (2) ◽  
pp. 145-160 ◽  
Author(s):  
Sang-Boom Ryoo ◽  
Won-Tae Kwon ◽  
Jong-Ghap Jhun
Keyword(s):  
South Korea ◽  
Minimum Temperature ◽  
Extreme Minimum Temperature

Study on Integrated Climatic Index for Low Temperature Injury of Loquat in Putian

2013 ◽  
Vol 726-731 ◽  
pp. 4436-4441
Author(s):  
Kai Yang ◽  
Bin Bin Chen ◽  
Hui Chen ◽  
Jing Lin ◽  
Jia Yi Wang ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Critical Temperature ◽  
Low Temperature ◽  
Correlation Analysis ◽  
Minimum Temperature ◽  
Principal Component ◽  
Climate Data ◽  
Climatic Index ◽  
Extreme Minimum Temperature ◽  
Inducing Factors

Based on the daily climate data in winter and relative meteorological yield of loquat for 2 meteorological stations in Putian from 1992 to 2009, this paper studied the disaster-inducing factors and integrated climatic index for low temperature injury of loquat. The results showed that the critical temperature for low temperature injury of loquat could be determined as 3.0°C. The disaster-inducing factors included extreme minimum temperature, the sum of daily numbers for less than or equal to 3.0°C, the sustained days of low temperature injury for less than or equal to 3.0°C, and harmful chilling accumulation for less than or equal to 3.0°C, and there were obvious correlations among these factors. According to the method of principal component analysis, an integrated climatic index was obtained. By the correlation analysis of integrated climatic index for low temperature injury and the relative meteorological yield of loquat in Putian, the value of integrated climatic index of low temperature injury was significantly negatively correlated with the yield of loquat, and could be used to analyze the degree of low temperature injury of loquat.

scholarly journals Ecological niche modeling as an effective tool to predict the distribution of freshwater organisms: The case of the Sabaleta Brycon henni (Eigenmann, 1913)

PLoS ONE ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. e0247876
Author(s):  
Daniel Valencia-Rodríguez ◽  
Luz Jiménez-Segura ◽  
Carlos A. Rogéliz ◽  
Juan L. Parra
Keyword(s):  
Minimum Temperature ◽  
Ecological Niche ◽  
Potential Distribution ◽  
Ecological Niche Modeling ◽  
Predictive Accuracy ◽  
National Level ◽  
Ecological Niche Models ◽  
Precipitation Seasonality ◽  
Bioclimatic Variables ◽  
Species Occurrences

Ecological niche models (ENMs) aim to recreate the relationships between species and the environments where they occur and allow us to identify unexplored areas in geography where these species might be present. These models have been successfully used in terrestrial organisms but their application in aquatic organisms is still scarce. Recent advances in the availability of species occurrences and environmental information particular to aquatic systems allow the evaluation of these models. This study aims to characterize the niche of the Sabaleta Brycon henni Eigenmann 1913, an endemic fish of the Colombian Andes, using ENMs to predict its geographical distribution across the Magdalena Basin. For this purpose, we used a set of environmental variables specific to freshwater systems in addition to the customary bioclimatic variables, and species’ occurrence data to model its potential distribution using the Maximum Entropy algorithm (MaxEnt). We evaluate the relative importance between these two sets of variables, the model’s performance, and its geographic overlap with the IUCN map. Both on-site (annual precipitation, minimum temperature of coldest month) and upstream variables (open waters, average minimum temperature of the coldest month and average precipitation seasonality) were included in the models with the highest predictive accuracy. With an area under the curve of 90%, 99% of the species occurrences and 68% of absences correctly predicted, our results support the good performance of ENMs to predict the potential distribution of the Sabaleta and the utility of this tool in conservation and decision-making at the national level.

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