scholarly journals SPATIO-TEMPORAL VARIATION OF PM<sub>2.5</sub> CONCENTRATION IN CHINA FROM 1998 TO 2016 AND ITS RESPONSE TO ECONOMIC DEVELOPMENT

Author(s):  
H. Z. Zhang ◽  
J. J. Chen ◽  
X. N. Zhao ◽  
J. Liu

Abstract. China's economy has experienced rapid development in the past few decades, and economic development has also brought serious pollution problems, which has attracted wide attention of scholars at home and abroad. Based on the data of global PM2.5 remote sensing products and China's economic development from 1998 to 2016, the temporal and spatial variations of PM2.5 concentration in China from 1998 to 2016 were analyzed, and the response of PM2.5 concentration in China to economic development was studied. The results showed that the average annual PM2.5 concentration in 1998–2016 showed the spatial distribution characteristics of high in the East and low in the west; during 1998–2016, PM2.5 increased significantly in most regions, but decreased significantly in Inner Mongolia, Shaanxi, Ningxia and Gansu, while PM2.5 did not change significantly in some parts of the central region; during 1998–2007, PM2.5 concentration in most regions of China experienced rapid economic development. The concentration of PM2.5 in a few areas such as Inner Mongolia decreased significantly, while that in Yunnan, Sichuan and Inner Mongolia did not change significantly. During the 10 years of economic slowdown in China (2008–2016), the downward trend of PM2.5 concentration in China was expanding. The concentration of PM2.5 in the central and southern regions decreased or did not change significantly, except in the northwest and a few northeast regions. The change of PM2.5 concentration responds obviously to economic development, but the response of different regional economic development to the change of PM2.5 concentration is different.

2011 ◽  
Vol 356-360 ◽  
pp. 2838-2847
Author(s):  
Jun Du ◽  
Dong Xia Yue ◽  
Jian Jun Guo ◽  
Jia Jing Zhang ◽  
He Wen Niu ◽  
...  

Ecological environment is the basis for human interdependence and development, so regional economic development must take into account the security situation of ecological environment and biocapacity. Based on the Ecological Footprint methodology, using remote sensing and GIS spatial analysis techniques, the biocapacity of Minqin oasis in Gansu in 1990, 2000 and 2009 was quantitatively calculated, and its spatio-temporal pattern analysis was also analyzed. The results showed:over the past two decades, there have been increasingly noticeable alterations to Minqin oasis; as a result, land reclamation activities have led to an increase in the areas of cropland, meaning that its biocapacity is rising, while the biocapacity of forest and pasture is decreasing. The biocapacity in space shows that the high-value area aggregation is augmented, there is an increased scope of area, and the focus of biocapacity has shifted. However, after 2000, with the water shortage, abandonment issues being highlighted and the aggravation of desertification, biocapacity has decreased, and additionally, the relationship between land and man has become strained. The changes of biocapacity are all closely linked with population growth, socio-economic development, agriculture structure, and water scarcity.


2018 ◽  
Vol 10 (7) ◽  
pp. 191
Author(s):  
Rijimoleng Si ◽  
Gang Han

Ordos is the most abundant coal resource city in Inner Mongolia. Its coal resources account for one half of Inner Mongolia's coal resources and one sixth of China's total coal reserves. Abundant coal resources have laid the foundation for Ordos become today’s resource-based city. In 2003, Inner Mongolia issued “the guiding opinions on accelerating the development of key coal enterprises” (hereinafter referred to as “policy”), supporting the development of coal enterprises and providing policy conditions for the rapid economic development of Ordos. However, with the rapid development of economy, the rural-urban income disparity is also getting bigger in Ordos. Based on panel data from 1999 to 2012 and use the DID analysis of “quasi-natural experiment”, the paper finds that the policy has increased the rural-urban income disparity. The policy increases the rural-urban income disparity by promoting GDP growth. Therefore, the role of the policy system in the economic development of a region cannot be ignored. The government supports the development of local resource-based industries and also increase support for the development of upstream and downstream industries. Under the guidance of policy, the mineral resources income should be transformed reasonably. Government should invest the proceeds of mineral resources in material capital and human capital. Government also should invest the proceeds of mineral resources in external industries and projects that require large initial capital or long construction cycles, such as those essential infrastructure sectors: education, health, transportation and energy. In this way, the integration of urban and rural development will be realized and the rural-urban income disparity will be reduced.


1956 ◽  
Vol 16 (4) ◽  
pp. 461-479 ◽  
Author(s):  
Vernon C. Fowke

The general theme of these discussions calls for a reinterpretation of the West as an underdeveloped region. This lends credence to a hypothesis occasionally encountered that history is comprised of the examination of a succession of conceptual anachronisms devised in each case by the historian's generation for the solution of contemporary problems and applied as an afterthought to the reconstruction of the past. The adoption of the concept of underdevelopment in die present circumstance is in line with this hypothesis and is, in this regard, in good company with well-worn frames of reference utilized by earlier generations of North American economic historians. Turner advanced the frontier thesis as a tool of analysis of the past at a time when major concern was arising over the frontier's disappearance. Innis fashioned the staple-trade approach to Canadian economic development in the interwar years when for a time it appeared that Canadian prosperity and material advance had vanished coincidentally with the mortal illness of the last great Canadian staple, wheat.


2017 ◽  
Vol 19 (1) ◽  
pp. 5-15
Author(s):  
SLAYMAKER Olav

The emphasis on the understanding of contemporary geomorphic processes that has dominated Anglophone geomorphological literature over the past 50 years has seen huge progress but also some set-backs. We now have reliable measurements of mean rates of operation of all subaerial processes responsible for modification of landforms and landscapes and have made good progress in estimating the role of human activities as compared with “natural” processes. Some limited progress has been achieved in understanding the scale problem but problems remain. Perhaps the single most surprising development has been the recognition of the ubiquity of disconnectivity in geomorphic systems, the need to calculate virtual velocities of whole geomorphic systems and the relevance of this understanding to the general spatio-temporal scale problem. We have always known that most geomorphic processes operate intermittently but we have continued to depend on models that imply that mass and energy move freely through geomorphic systems and that conservation of mass and energy occurrs uninterruptedly at all temporal and spatial scales.


2021 ◽  
Vol 261 ◽  
pp. 03063
Author(s):  
Zhaowen Duan ◽  
Hanyu Sun ◽  
Shan Xie ◽  
Tingwei Zhang

Network attention is the degree of public attention to things on the Internet. With the rapid development of Web 2.0, the network attention of hotels on the tourism network platform has become an important reference for tourists to select an appropriate hotel. Based on the above, taking 371 hotels with three stars and more in Xi’an as the research object and gathering the data of hotels’ network attention from www.ctrip.com., we explore the temporal and spatial characteristics of hotels’ network attention. The result shows that: (1) From 2016 to 2018, due to the development of hotel online booking business, Consumers’ attention to Xi’an three-star and above hotels on www.ctrip.com. has increased significantly; (2) With the Bell and Drum Tower business district as the core, the spatial distribution of network attention of hotels with three stars and above in Xi’an presents the pattern of “large agglomeration and small dispersion”; (3) The network attention of different levels of hotels has obvious differences in spatial agglomeration;


2011 ◽  
Vol 63-64 ◽  
pp. 561-564
Author(s):  
Guang Yi Zhang ◽  
Tian Peng Zhao ◽  
Wan Yan Dong

Urban economy has been deemed to be the leading power for regional economic and social development and it has everything to do with citizen income increase, local financial strengthen and organizational economic vigor. Weifang has a sound geographic position for it shares the common border of coastal and inland cities, which is beneficial to the whole provincial economic development. AHP methodology is applied to construct the evaluation system for urban economic development competence and an index system developed out of it is employed to compare the economic development competence from 2005 to 2009. Finally, the analysis of problems and weaknesses occurred thereby in the past five years is made, accompanied by constructive comments and suggestions. In recent years, rapid development has made Weifang among the tops in total economic volume in Shandong.To research Weifang’s economic development competence, to clarify Weifang’s regional economic development strategy, and to seize the opportunity to develop Weifang are meaningful to Weifang and Shandong.This article uses multiple statistic methods and social economic statistic software SPSS to standardize the indexes of Weifang from 2005 to 2009. It uses AHP to calculate each index’s weight, and gets the final comprehensive score of its economic development competence, on the basis of which it analyze Weifang’s economy and find the weak points so as to strengthen its economic development competence by giving relative suggestions.


2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Yan Yan ◽  
Wenfeng Zeng ◽  
Zhao Zhang ◽  
Xueqin Luo

With the rapid development of China's economy, the relationship between regional and international development and geographical factors has attracted increasing attention from scholars. This article combs through the literature of China's economic geography in the past three years, trying to summarize the economic geography under the background of China's new economic normal. The development context in each direction provides a reference for possible future research directions.


Author(s):  
Mensah Adinkrah

At present, scholarship on matricide across many regions of the non-Western world is lacking. For instance, in Ghana, despite the intermittent, yet recurrent, availability of media reports describing matricidal acts over the past quarter century, no existing study has systematically analyzed matricidal killings in the West African nation. To contribute to the literature and extend knowledge about matricide and other forms of lethal violence in Ghana, this article presents the results of an analysis of 21 matricidal acts that occurred in Ghana from 1990 to 2016. Issues studied include demographic characteristics of assailants and victims, modus operandi, temporal and spatial aspects, as well as the motives and circumstances surrounding the crime. The results show that sons were substantially more likely than daughters to kill their mothers, matricide offenders were more likely to suffer from serious psychiatric disorders, matricide offenses generally occurred in the victim’s home, and all cases of matricide were characterized by massive physical force and extreme violence. Matricide offenses in Ghana differed from matricides in Western nations in four important respects: (a) none of the 21 matricides was perpetrated with a firearm, (b) in none of the cases did the offender act with a co-offender (accomplice or accessory), (c) none of the matricide offenses was perpetrated by a juvenile or adolescent offender, and (d) suspicion that the mother-victim was a maleficent witch was an important trigger in matricide perpetration.


Sign in / Sign up

Export Citation Format

Share Document