scholarly journals Quantitative Analysis of Winter Wheat Growth and Yields Responding to Climate Change in Xinjiang, China

Water ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 3624
Author(s):  
Haixia Lin ◽  
Na Li ◽  
Yi Li ◽  
Hongguang Liu ◽  
Jian Liu ◽  
...  
Keyword(s):  
Climate Change ◽  
Winter Wheat ◽  
Plant Height ◽  
Pearson Correlation ◽  
Growth Period ◽  
Climatic Variables ◽  
Wheat Growth ◽  
The Impact ◽  
The Relationship ◽  
Period Duration

The knowledge of climate change effects on variations of winter wheat yields are crucial for productions. Our objectives were to investigate the relationship between yield-related indices of winter wheat and the related climatic variables (selected using variance inflation factors) at the 20 sites of Xinjiang, China over 1981–2017. The background of climate and yield changes was analyzed from temporal and spatial respects. The number of independent climatic variables was selected with the variance inflation factor method to remove the multicollinear feature. The Pearson correlation was conducted between the first difference values of climatic variables and yield-related indices of winter wheat (namely plant height, growth period duration, 1000-kernel weight, kernel number per ear, biomass and yield) to find the key climatic variables that impacted winter wheat growth and yields. The multi-variate linear and nonlinear functions were established step by step using the selected key climatic variables. The best function was determined for each site (significant for p < 0.05). From the results, there were general wetter and warmer trends of the climatic variables. Correspondingly, shortened winter wheat phenology and increased growth and yields were observed for most sites. Still, the climatic trends had mixed effects on winter wheat yields. The effects of precipitation, mean air temperature and relative humidity on plant height and growth period duration agreed well. Different sites had different major climatic drivers for winter wheat growth or yields, and the best functions of growth and yields could be linearly or nonlinearly, mostly described by multi-variate functions. The winter wheat growth or yield indices were also found to be closely connected with the soil water content status at the eight sites. The relationship between winter wheat growth or yield and climate provided useful references for forecasting crop production and for projecting the impact of future climate changes.

scholarly journals Impact of Climate Change on the Growth of Typical Crops in Karst Areas: A Case Study of Guizhou Province

2019 ◽  
Vol 2019 ◽  
pp. 1-16
Author(s):  
Jun Ma ◽  
Baisha Weng ◽  
Wuxia Bi ◽  
Dan Xu ◽  
Ting Xu ◽  
...  
Keyword(s):  
Climate Change ◽  
Winter Wheat ◽  
Cycle Length ◽  
Growth Period ◽  
System Structure ◽  
Guizhou Province ◽  
Karst Region ◽  
Weather Events ◽  
Crop Cycle ◽  
The Impact

Climate change has emerged as a significant man-made global environmental challenge marked by rising temperature. The global rising temperature is supposed to alter climatic patterns like floods and droughts, thereby affecting human life supporting system and global food production. In order to clarify the impact of weather events on agricultural production in karst landforms, this study selected the indices of the growth period of crops (start time and duration), growing season precipitation, intense precipitation, number of consecutive rainless days, and number of drought-flood abrupt alternation events to evaluate the variation trend of future weather events and their impact on crop growth in Guizhou Province, China. The results show that (1) the climate is generally getting warmer. From 2019 to 2050, the sowing period of winter wheat and rice tends to be postponed. The duration of maize and rice’s growth period will be shortened, and the life cycle of wheat also emerges as having a decreasing tendency except for those from the southern region. Comparing with the mean value during 1961 to 2018, the average crop cycle length of winter wheat, summer maize, and rice was shortened. The rate of shortening of crop cycle length is faster than the value during 1961 to 2018. (2) In the next 30 years, extreme precipitation concentrates in June and mainly falls in the central and southeast parts of Guizhou Province. In addition, summer is the outbreak period of drought events and drought-flood abrupt alternation events, which has a great impact on crop’s growth. This study can provide references for the planting system, structure, layout, and management of crops in the karst region.

Differences in warming impacts on wheat productivity among varieties released in different eras in North China

2015 ◽  
Vol 153 (8) ◽  
pp. 1353-1364 ◽  
Author(s):  
C. Y. ZHENG ◽  
J. CHEN ◽  
Z. W. SONG ◽  
A. X. DENG ◽  
L. N. JIANG ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Biomass Production ◽  
Air Temperature ◽  
North China ◽  
Growth Period ◽  
Wheat Breeding ◽  
Wheat Growth ◽  
Positive Effects ◽  
Significant Difference

SUMMARYTen leading varieties of winter wheat released during 1950–2009 in North China were tested in a free-air temperature increase (FATI) facility. The FATI facility mimicked the local air temperature pattern well, with an increase of 1·1 °C in the daily mean temperature. For all the tested varieties, warming caused a significant reduction in the total length of wheat growth period by 5 days and especially in the pre-anthesis period, where it was reduced by 9 days. However, warming increased wheat biomass production and grain yield by 8·4 and 11·4%, respectively, on an average of all the tested varieties. There was no significant difference in the warming-led reduction in the entire growth period among the tested varieties. Interestingly, the warming-led increments in biomass production and grain yield increased along with the variety release year. Significantly higher warming-led increases in post-anthesis biomass production and 1000-grain weight were found in the new varieties compared to the old ones. Meanwhile, a significant improvement in plant productivity was noted due to wheat breeding during the past six decades, while no significant difference in the length of entire growth period was found among the varieties released in different eras. The results demonstrate that historical wheat breeding might have enhanced winter wheat productivity and adaptability through exploiting the positive effects rather than mitigating the negative impacts of warming on wheat growth in North China.

Farmers’ Capacity and Rice Productivity in Climate Change Adaptation in Central Lampung Regency, Indonesia

2021 ◽  
Vol 11 (4) ◽  
pp. 346-353
Author(s):  
Indah Listiana ◽  
Indah Nurmayasari ◽  
Rinaldi Bursan ◽  
Muher Sukmayanto ◽  
Helvi Yanfika ◽  
...  
Keyword(s):  
Climate Change ◽  
Climate Change Adaptation ◽  
Agricultural Sector ◽  
Rank Correlation ◽  
Performance Level ◽  
Crop Failure ◽  
Rice Productivity ◽  
Spearman Rank Correlation Analysis ◽  
The Impact ◽  
The Relationship

Climate change is an extreme natural change condition due to global warming that cannot be avoided, and will have a broad impact on various aspects of life, including the agricultural sector. The impact of climate change that occurs in the agricultural sector, namely flood and drought that cause plants to crop failure , is becoming greater, causing significant reduction in agricultural production, especially rice, requiring that farmers have the ability to adapt to climate change. The purposes of this study are to analyze the relationship between the performance level of agricultural extension workers and the capacity level of farmers in regard to climate change adaptation, and to analyze the relationship between the level of farmer capacity in climate change adaptation and rice productivity. The research was conducted in Central Lampung Regency in 2019 using a total of 100 rice farmers. The data analysis method used is Spearman rank correlation analysis. The results show that the performance level of agricultural instructors is significantly related to the level of knowledge capacity, attitude, and skills of farmers in climate change adaptation. Knowledge capacity, attitude, and skills of farmers in climate change adaptation are significantly related to rice productivity.

scholarly journals Family Climate Patterns and Its Relationship with Self-Concept among Students at the University of Islamic Sciences in light of the Variables of Gender and Age

2017 ◽  
Vol 9 (1) ◽  
pp. 145
Author(s):  
Fatima Mohammad Rashed Al Talahin ◽  
Hana Khaled Al –Raqqad ◽  
Eman Saeed Al- Bourini ◽  
Bilal Adel Al-Kateeb
Keyword(s):  
Pearson Correlation ◽  
Statistical Significance ◽  
Self Concept ◽  
Family Climate ◽  
Gender And Age ◽  
Climate Patterns ◽  
The Difference ◽  
The University ◽  
The Impact ◽  
The Relationship

The aim of this study is to clarify the relationship between self-concept and patterns of family climate among students at the University of Islamic Sciences, and also aimed to investigate the effect of gender and age on this relationship.The sample of the study consisted of a group of students were selected randomly, totaling (139) students; (58) male and (81) female students.Two questionnaires were distributed on 139 students. The first questionnaire was on the impact of patterns of family climate on self-concept and the second one about self-concept. Then the researcher analyzed the results of each item in the questionnaire using appropriated statistical methods, calculated the correlation between self-concept and patterns of family climate using the Pearson correlation coefficient, and G-test to find the difference between correlation coefficients.The results showed a positive statistical significance relationship between family climate patterns on one hand and between self-concept in all its dimensions on the other hand.

scholarly journals The Impact of Autocratic Leadership on Disruptive Political Behavior, Moderating the Relationship of Abusive Supervisory Behavior and Mediating the Relationship of Employee’s Perception of Job Insecurity

2020 ◽  
Vol 12 (6) ◽  
pp. 57
Author(s):  
Asif Hussain ◽  
Xue Yang ◽  
Lu Yali ◽  
Asma Ibrahim ◽  
Samina Hussain
Keyword(s):  
Political Behavior ◽  
Job Insecurity ◽  
Pearson Correlation ◽  
Middle Level ◽  
Mediating Effect ◽  
Employee Perception ◽  
Autocratic Leadership ◽  
Relationship Of ◽  
The Impact ◽  
The Relationship

This study examines the impact of Autocratic leadership on Disruptive Political Behavior with the moderating effect of Abusive Supervisory Behavior and the mediating effect of Employee Perception of Job Insecurity. It examines the employee perception of job insecurity while working in an autocratic culture and the political strategies which an employee chooses to cope up with such insecurities. The data was collected through a structured questionnaire from a sample of 248 employees which include middle-level managers, front-line managers, and their employees. Pearson correlation test was used to establish the relationship between variables. Findings reveal the existence of a significant positive relationship between the variables. Result also prove that there is a significant positive moderation of abusive supervisory behavior between the relationship of autocratic leadership and employee perception of job insecurity, and shows partial significance with mediating effect of employee perception of job insecurity with the relation of autocratic leadership and disruptive political behavior. The study concludes with a discussion and future directions.

scholarly journals THE IMPACT OF EMOTIONAL COMPETENCIES ON THE ACQUISITION OF SOCIAL COMPETENCIES THROUGH PRESCHOOL EDUCATION

2021 ◽  
Vol 03 (03) ◽  
pp. 27-39
Author(s):  
Salam EL KETTANI
Keyword(s):  
Pearson Correlation ◽  
Self Regulation ◽  
Cognitive Learning ◽  
Preschool Education ◽  
Preschool Age ◽  
Initial Assessment ◽  
Emotional Competencies ◽  
Social Competencies ◽  
The Impact ◽  
The Relationship

Social and emotional difficulties are common during the kindergarten stage, the changes between family and school environment leave the child at risk of a range of emotional and social problems at that point. This pressure confronts the child's weak ability at that age, linguistically, to express his feelings and thoughts in a clear and understandable manner, as well as the beginning of his ability to control and organize his feelings and behaviors. All this constitutes factors that make the child's adaptation process on the emotional, social and cognitive level difficult during the kindergarten stage. While many studies confirm that the child is an emotional and social being par excellence, and while educational programs emphasize in most of their content on cognitive learning, the child's needs, personality and sentiments are ignored, hence the question raised about the role of emotional competencies in establishing other competencies? Since the kindergarten stage by its nature requires that the child learn to adapt to the environment and establish healthy relationships, our paper aims to study the relationship between emotional competencies (Self-awareness and Self-regulation*) and their indicators and social competencies (Social awareness and Relationships skills*) and their indicators and determine the mutual impact between them. As a tool for this study we used SEAM scale to measure emotional and social competencies to measure the relationship between emotional variables as an independent variable to see its effect on the dependent variable, which is in our study social competencies. Using the inferential statistics (Pearson correlation coefficient and simple linear regression coefficient) to measure the relationship between two variables, results demonstrated that there is a positive semantic relationship confirms that emotional competencies and their determinants are highly influential competencies that establish social competencies and their determinants at preschool age. Participant were 191 children, aged 4 to 6 years old at the time initial assessment, in kindergarten, within the group of schools relied to the Moroccan Foundation for promoting preschool education.

scholarly journals THE RELATIONSHIP BETWEEN IMPACT OF ZAKAT DISTRIBUTION AND RELIGIOUS PRACTICE AMONG MUALLAF IN SELANGOR

2019 ◽  
Vol 7 (4) ◽  
pp. 371-376
Author(s):  
Syarul Azman Shaharuddin ◽  
Muhammad Yusuf Marlon ◽  
Mariam Abd Majid ◽  
Abur Hamdi Usman ◽  
Fakhri Sungit ◽  
...  
Keyword(s):  
Islamic Law ◽  
Pearson Correlation ◽  
Descriptive Analysis ◽  
Religious Practice ◽  
Mean Value ◽  
Quantitative Methodology ◽  
Pearson Correlation Analysis ◽  
High Level ◽  
The Impact ◽  
The Relationship

Purpose and problem of the study: This study to identify the level of impact of zakat distribution and the level of religious practice among the mualaf (convert) in Selangor. The aim is also to analyse the relationship between the level of impact of zakat distribution and the level of religious practice of mualaf in Selangor. The problem of the study is issues which related to the granting of zakat rights to Muslims and its impact on strengthening the faith of these groups and their appreciation of Islamic teachings. Methodology: This study applies quantitative methodology which involves 454 Muslim converts as respondents and they were randomly selected to get the data of this study. Main Findings: The descriptive analysis findings demonstrate that the level of impact of zakat distribution and the level of religious practice of mualaf in Selangor is at high level, where each has a mean value (4.20 and 4.63). The result of the Pearson correlation analysis proves that there is a significant relationship between the impact of the distribution (r = 0.643, p < 0.01) and religious practice (r = 0.677, p < 0.01).       Applications of this study: This study involves respondents from the mualaf group in Selangor. Selangor has chosen to be the area of study as the total number of muallaf registered in this state is greater than those in other states in Malaysia. Novelty/Originality of this study: The implementation of zakat distribution based on the principals and concepts dictated by Islamic law will give a great impact to the group of mualaf (convert). 

scholarly journals German–Russian gas relations in face of the energy transition

2020 ◽  
Vol 6 (4) ◽  
pp. 406-423
Author(s):  
Kirsten Westphal
Keyword(s):  
Climate Change ◽  
Value Chain ◽  
Energy Transition ◽  
Legal Framework ◽  
Paradigm Shifts ◽  
Address Climate Change ◽  
Eu Member States ◽  
Russian Economy ◽  
The Impact ◽  
The Relationship

Russia is the world’s largest gas exporter and Germany is its most important market. Moreover, natural gas is a centerpiece of the Russian economy and the backbone of its energy supply to the Russian population. In terms of its external gas relations, Germany has always kept a special and strategic position, both in terms of volumes, but also in substance. This contribution explores the impact of the energy transition on the bilateral gas relationship. It argues that the bilateral gas relationship has been subjected to various paradigm shifts in the past, but, until recently, the relationship has been seen as in line with the strategic energy triangle of climate change/sustainability, supply security and economic competitiveness. This perception has come into question over two issues: climate change and supply security. Moreover, Germany’s authority over the conduct and the legal framework of bilateral gas relations has been increasingly contested, by Brussels, but also horizontally by other EU member states. At this stage, it is very uncertain whether both sides will manage to maintain and redefine their close energy partnership to address climate change. Decarbonizing the gas value chain would be a centerpiece. This would require a political shift away from securitization to decarbonization, not only in Germany, but even more so in the EU, and in particular, in Russia.

Impact of Leadership Styles on Job Performance; from Nurse’s Points of View at Benghazi Medical Centre

2021 ◽  
pp. 58-64
Author(s):  
Eman Alaqeli ◽  
Ainas Altarhuni ◽  
Nidaal Almabrook
Keyword(s):  
Job Performance ◽  
Leadership Styles ◽  
Leadership Style ◽  
Pearson Correlation ◽  
Medical Centre ◽  
Future Research ◽  
Points Of View ◽  
Laissez Faire ◽  
The Impact ◽  
The Relationship

Background and objectives. The relationship between leadership styles and job performance draws considerable attention from recent researchers. The main objective of this study was to determine the impact of leadership style (autocratic, democratic, and laissez-faire) on job performance from nurse’s points of view at Benghazi Medical Centre. Method. This study was a descriptive questionnaire-based study conducted on 100 nurses working at Benghazi Medical Centre, Libya. To analyze the data (mean, standard deviation, ANOVA test were used. Furthermore, multiple regressions and Pearson correlation were used to determine whether a relationship exists between the independent and dependent variables. Result. Of 100, only 60 questionnaires were completed, giving a response rate of 60%. The findings of this study indicated that democratic was the most dominantly used in the hospital, followed by the autocratic and laissez-faire leadership styles. Whereas, the laissez-faire leadership style had a strong positive and significant impact on performance (R2= .333; P < 0.01). Conclusion. Laissez-faire leadership style positively affected nurses’ performance. Future research that might be relevant to be further explored are worth.

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