Spatiotemporally mapping of the relationship between NO2 pollution and urbanization for a megacity in Southwest China during 2005–2016

Chemosphere ◽  
2019 ◽  
Vol 220 ◽  
pp. 155-162 ◽  
Author(s):  
Yijing Zhu ◽  
Yu Zhan ◽  
Bin Wang ◽  
Zhi Li ◽  
Yuanqing Qin ◽  
...  
Keyword(s):  
Southwest China ◽  
The Relationship ◽  
No2 Pollution

scholarly journals Decoupling Analysis between Economic Growth and Air Pollution in Key Regions of Air Pollution Control in China

2021 ◽  
Vol 13 (12) ◽  
pp. 6600
Author(s):  
Jing Li ◽  
Lipeng Hou ◽  
Lin Wang ◽  
Lina Tang
Keyword(s):  
Economic Growth ◽  
Air Pollution ◽  
Economic Development ◽  
Pollution Control ◽  
Environmental Policies ◽  
River Delta ◽  
Chinese Government ◽  
Air Pollution Control ◽  
The Relationship ◽  
No2 Pollution

The Chinese government has implemented a number of environmental policies to promote the continuous improvement of air quality while considering economic development. Scientific assessment of the impact of environmental policies on the relationship between air pollution and economic growth can provide a scientific basis for promoting the coordinated development of these two factors. This paper uses the Tapio decoupling theory to analyze the relationship between regional economic growth and air pollution in key regions of air pollution control in China—namely, the Beijing–Tianjin–Hebei region and surrounding areas (BTHS), the Yangtze River Delta (YRD), and the Pearl River Delta (PRD)—based on data of GDP and the concentrations of SO2, PM10, and NO2 for 31 provinces in China from 2000 to 2019. The results show that the SO2, PM10, and NO2 pollution in the key regions show strong and weak decoupling. The findings additionally indicate that government policies have played a significant role in improving the decoupling between air pollution and economic development. The decoupling between economic growth and SO2 and PM10 pollution in the BTHS, YRD, and PRD is better than that in other regions, while the decoupling between economic growth and NO2 pollution has not improved significantly in these regions. To improve the relationship between economic growth and air pollution, we suggest that the governments of China and other developing countries should further optimize and adjust the structure of industry, energy, and transportation; apply more stringent targets and measures in areas of serious air pollution; and strengthen mobile vehicle pollution control.

Relationship between psychological suzhi and internet addiction among chinese college students

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yuan-yan Hu ◽  
Peng Wang ◽  
Xin-qiang Wang ◽  
Tian-qiang Hu
Keyword(s):  
College Students ◽  
Internet Addiction ◽  
North China ◽  
Southwest China ◽  
Significant Negative Correlation ◽  
Hierarchical Regression ◽  
Content Type ◽  
Chinese College Students ◽  
College Sample ◽  
The Relationship

Purpose Despite concerns about the effect of internet addiction, little is known about how psychological suzhi impacts the internet addiction of college students. This paper aims to investigate the relationship between psychological suzhi and internet addiction among college students. Design/methodology/approach Using the college student psychological suzhi scale and internet addiction test, 2,070 college students from 11 universities in North China, East China, South China and Southwest China were tested. Findings The detection rate of internet addiction in this college sample of students was 18.8%. There was a significant negative correlation between students’ psychological suzhi and internet addiction (r = −0.408, p < 0.01). Hierarchical regression analysis showed that adaptability and individuality in psychological suzhi significantly negatively predicted college students’ internet addiction tendency (p < 0.001). Originality/value This study is the first to show a relationship between psychological suzhi and internet addiction in college students. In detail, the adaptability and individuality of college students’ psychological suzhi are protective factors related to internet addiction. The results also suggested that the authors can prevent and intervene in internet addiction by modifying college students’ adaptability and individuality.

scholarly journals Genetic diversity among flue-cured tobacco cultivars on the basis of AFLP markers

2009 ◽  
Vol 45 (No. 4) ◽  
pp. 155-159 ◽  
Author(s):  
X.Z. Liu ◽  
C.S. He ◽  
Y.M. Yang ◽  
H.Y. Zhang
Keyword(s):  
Genetic Diversity ◽  
Yunnan Province ◽  
Southwest China ◽  
Germplasm Conservation ◽  
Research Centre ◽  
Aflp Data ◽  
Breeding Research ◽  
Polymorphic Bands ◽  
Relationship Of ◽  
The Relationship

AFLP analyses were used to assess the genetic similarity among selected accessions at the South China Tobacco Breeding Research Centre (Yunnan province, Southwest China). 154 AFLP polymorphic fragments out of 561 fragments were used to assess the genetic diversity among 28 tobacco accessions. The average number of polymorphic bands per AFLP primer pair was 15.4. AFLPs seemed to be an effective classification tools for germplasm conservation and breeding. Limited genetic variation was detected within this group of accessions. The relationship of cultivars was estimated by cluster analysis based on AFLP data.

Southwest China

2017 ◽  
Author(s):  
Laurel Bossen ◽  
Hill Gates
Keyword(s):  
Survey Data ◽  
Southwest China ◽  
Women's Work ◽  
Cotton Cloth ◽  
Cotton Yarn ◽  
Women’S Work ◽  
Fertile Ground ◽  
Locally Grown ◽  
The Relationship

China’s Southwest, lacking locally grown cotton, had imported raw cotton, cotton yarn, and cotton cloth. Among our five village sites in mountainous Yunnan and Guizhou, differences in the distance from industrial centers and the railway allowed some villages to specialize in hand woven textiles and other commercial crafts while other villages relied less on women’s handcraft labor. With milder winters, the work of cultivating double-cropped rice and opium left less time for handwork, and generated income used to buy textiles. The variations in Han women’s work and footbinding provide fertile ground for testing the relationship between girls’ labor and footbinding. The examination of Southwest China concludes with comparison to Gates’ earlier survey data on footbinding among nearly 5,000 Sichuan women.

Exploring the relationship between vegetation spectra and eco-geo-environmental conditions in karst region, Southwest China

2008 ◽  
Vol 160 (1-4) ◽  
pp. 157-168 ◽  
Author(s):  
Yuemin Yue ◽  
Kelin Wang ◽  
Bing Zhang ◽  
Zhengchao Chen ◽  
Quanjun Jiao ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Southwest China ◽  
Karst Region ◽  
The Relationship

scholarly journals Family function fully mediates the relationship between social support and perinatal depression in rural Southwest China

2021 ◽  
Author(s):  
Yilin Huang ◽  
Yan Liu ◽  
Yu Wang ◽  
Danping Liu
Keyword(s):  
Social Support ◽  
Negative Correlation ◽  
Structural Equation ◽  
Southwest China ◽  
Perinatal Depression ◽  
Depression Scale ◽  
Depression Symptoms ◽  
Family Function ◽  
Modifiable Factors ◽  
The Relationship

Abstract Background: Perinatal depression is the most common complication of gestation and childbearing affecting women and their families, and good social support and family function are considered the protective and modifiable factors. This study aimed to investigate the depression status and explore inter-relationships between social support and perinatal depression considering the influence of family function in rural areas of Southwest China.Methods: This is a cross-sectional study. The following instruments were used: the Edinburgh Postpartum Depression Scale, the APGAR Family Care Index Scale, and the Social Support Rate Scale. A structural equation modelling was used to test the hypothesis relationships among the variables. Results: A total of 490 rural antenatal (N=249) and postpartum(N=241) women (age: 28.17± 5.12) participated. We found that the prevalence of depression symptoms was 10.4%. Path analysis showed that family function had a direct negative correlation with depression (β =-0.251, 95%CI: -0.382 to -0.118). Social support had a direct positive correlation with family function (β =0.293, 95%CI: 0.147 to 0.434) and had an indirect negative correlation with depression (β =-0.074, 95%CI: -0.139 to -0.032), family function fully mediated the relationship between social support and depression. Conclusions: Findings of this study highlight that family function should be considered as the key target for interventions aiming to lower the prevalence of perinatal depression. Family members interventions are critical to reduce depression among antenatal and postpartum women.

scholarly journals Understanding the Role of Urbanization on Vegetation Dynamics in Mountainous Areas of Southwest China: Mechanism, Spatiotemporal Pattern, and Policy Implications

2021 ◽  
Vol 10 (9) ◽  
pp. 590
Author(s):  
Li Peng ◽  
Wei Deng ◽  
Ying Liu
Keyword(s):  
Land Surface ◽  
Vegetation Dynamics ◽  
Southwest China ◽  
Policy Implications ◽  
Vegetation Coverage ◽  
Spatiotemporal Pattern ◽  
Mountainous Area ◽  
Mountainous Areas ◽  
Rapid Urbanization ◽  
The Relationship

As an important component of terrestrial ecosystems, the mountainous areas of southwest China are facing eco-environmental stress due to rapid urbanization. This study analyzed the vegetation dynamics during urbanization in 410 counties in the mountainous area of southwest China using trend analysis and bivariate spatial autocorrelation analysis. The results demonstrate the following: (1) The regional differences in the natural background and the stage of economic development resulted in obvious geographical heterogeneity in the relationship between urbanization and vegetation coverage. (2) The relationship between the rate of urbanization level change (RULC) and the slope of the normalized difference vegetation index (NDVI) (Slope−NDVI) in the mountainous areas of southwest China is characterized by an inverted-U-shaped curve. Based on the inflection point (0.206, 57.60) of the inverted-U-shaped curve, the optimal mean annual RULC is 1.37%. (3) The relief degree of the land surface, the gross domestic product (GDP) change rate, and the slope of temperature change are positively correlated with the Slope−NDVI. Overall, an understanding of how urbanization affects vegetation dynamics can inform decisions concerning ecological restoration and urban–rural development in China.

scholarly journals Family function fully mediates the relationship between social support and depression among antenatal and postpartum women in rural Southwest China

2020 ◽  
Author(s):  
Yilin Huang ◽  
Yan Liu ◽  
Yu Wang ◽  
Danping Liu
Keyword(s):  
Social Support ◽  
Postpartum Depression ◽  
Negative Correlation ◽  
Southwest China ◽  
Depression Scale ◽  
Equation Modeling ◽  
Postpartum Women ◽  
Family Function ◽  
Modifiable Factors ◽  
The Relationship

Abstract Background: Antenatal and postpartum depression is the most common complication of gestation and childbearing affecting women and their families, and good social support and family function are considered the protective and modifiable factors. This study aimed to investigate the depression status and to clarify the interrelationships between social support and depression considering the influence of family function among antenatal and postpartum women in rural areas of Southwest China.Methods: This is a cross-sectional study. Data were collected from a total of 490 rural antenatal (N=249) and postpartum(N=241) women (age: 28.17± 5.12). A structural equation modeling (SEM) was used to test the hypothesized relationships among the variables. The following instruments were used: the Edinburgh Postpartum Depression Scale (EPDS), the APGAR Family Care Index Scale, and the Social Support Rate Scale (SSRS).Results: We found that the prevalence of depression was 10.4%. Path analysis showed that family function had a direct negative correlation with depression (β =-0.251, 95%CI: (-0.382)– (-0.118)). Social support had a direct positive correlation with family function (β =0.293, 95%CI: (0.147– 0.434)) and had an indirect negative correlation with depression (β =-0.074, 95%CI: (-0.139)– (-0.032)), family function fully mediated the relationship between social support and depression. Conclusions: Findings of this study highlight that family function should be considered as the key target for interventions aiming to lower the prevalence of antenatal and postpartum depression. Family members interventions are critical to reduce depression among antenatal and postpartum women.

Entrepreneurs of the National Past: The Discourse of Ethnic Indigeneity and Indigenous Cultural Writing in China

2021 ◽  
Vol 29 (2) ◽  
pp. 423-450
Author(s):  
Yanshuo Zhang
Keyword(s):  
Ethnic Diversity ◽  
Southwest China ◽  
Minority Groups ◽  
Minority Group ◽  
Modern China ◽  
National Narratives ◽  
Cultural Economic ◽  
Reform Era ◽  
Chinese Nation ◽  
The Relationship

Abstract This article probes a long-overlooked concept in modern China—ethnic indigeneity—to propose new ways of looking at the relationship between the Chinese nation and its multiethnic minority groups. The Western scholarly community has long held that because the Chinese state uses the Marxist-tainted term shaoshu minzu (ethnic minorities) as the official designation for the non-Han people, the concept of indigeneity is irrelevant to understanding China and its ethnic diversity. This article investigates how reform-era China has witnessed the emergence of an indigenous cultural consciousness exhibited by the non-Han people such as the Qiang people from southwest China. The article argues that minority groups like the Qiang are enthusiastic about “enterprising” their ethnic identities by writing minority histories into the foundational myths of a multiethnic, unified China and challenging the historical hierarchy of the “civilized” Han center and its “uncultured” non-Han peripheries. By analyzing locally produced scholarly and touristic discourses, ethnocultural writing, and filming efforts in southwest China, the article proposes that “indigeneity” entails the interactive processes for a minority group to carve out its cultural, economic, and political spaces of creative belonging within the state by conversing with national narratives and contending for the epistemological authority to represent itself in multiethnic China.

scholarly journals Earthquake-triggered landslides in southwest China

2012 ◽  
Vol 12 (2) ◽  
pp. 351-363 ◽  
Author(s):  
X. L. Chen ◽  
Q. Zhou ◽  
H. Ran ◽  
R. Dong
Keyword(s):  
Southwest China ◽  
Earthquake Magnitude ◽  
The Tibetan Plateau ◽  
Study Region ◽  
Strong Earthquakes ◽  
Landslide Hazards ◽  
Geological Conditions ◽  
Southeastern Margin ◽  
Fault Belt ◽  
The Relationship

Abstract. Southwest China is located in the southeastern margin of the Tibetan Plateau and it is a region of high seismic activity. Historically, strong earthquakes that occurred here usually generated lots of landslides and brought destructive damages. This paper introduces several earthquake-triggered landslide events in this region and describes their characteristics. Also, the historical data of earthquakes with a magnitude of 7.0 or greater, having occurred in this region, is collected and the relationship between the affected area of landslides and earthquake magnitude is analysed. Based on the study, it can be concluded that strong earthquakes, steep topography as well as fragile geological environment, are the main reasons responsible for serious landslides in southwest China. At the same time, it is found that the relationship between the area affected by landslides and the earthquake magnitude in this region are consistent with what has been obtained worldwide. Moreover, in this paper, it is seen that the size of the areas affected by landslides change enormously even under the same earthquake magnitude in the study region. While at the same tectonic place or fault belt, areas affected by landslides presented similar outline and size. This means that local geological conditions and historical earthquake background have an important influence on landslides distribution, and they should be considered when assessing earthquake-triggered landslide hazards at Grade 1 according to ISSMGE.

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