The fact and causes of warm-dry and warm-wet change since 1971 in HEXI corridor area of Gansu Province, China

2018 ◽  
Author(s):  
Li-Wei Liu ◽  
Dan-hua Li ◽  
Guo-Yang Lu ◽  
Shu Lin
Keyword(s):  
Hexi Corridor ◽  
Gansu Province

scholarly journals Sustainability Evaluation on the Grain to Green Program in the Hexi Corridor of China: A Metacoupled System Perspective

2021 ◽  
Vol 13 (3) ◽  
pp. 1498
Author(s):  
Jian Zhang ◽  
Tao Tian ◽  
Jinying Cui ◽  
Gordon M. Hickey ◽  
Rui Zhou ◽  
...  
Keyword(s):  
Hexi Corridor ◽  
Gansu Province ◽  
Natural System ◽  
Ecological Benefits ◽  
System Perspective ◽  
The Social ◽  
Economic Transformations ◽  
Labor Transfer ◽  
Ancient Silk Road ◽  
First Time

Most previous studies aim to predict ecosystem sustainability from the perspective of a sole human or natural system and have frequently failed to achieve their desired outcome. Based on the coupled human and natural system (CHANS) and its interaction with other systems, we attempted to analyze the effectiveness of the Grain to Green Program and predict future trends in the Hexi Corridor, the hub of the ancient silk road of China. At different scales, we applied a metacoupling framework to investigate the flows, effects, and causes of the complex CHANS. Three typical inner river watersheds within the corridor at three different geographic scales (local, regional and national) were estimated and compared. The Telecoupling Geo App, additional models, and software tools were employed to evaluate the CHANS series of the focal system (Hexi Corridor, local), adjacent system (Gansu Province, regional), and distant system (China, national). The results showed that most flows can be screened and quantitatively analyzed across focal, adjacent and distant systems. The social and economic transformations in adjacent and distant systems could affect the possibility and whereabouts of labor transfer in the focal system. Moreover, the labor migration increased the implementation efficiency of the Grain to Green Program as a Payment for Ecosystem Services (PES) strategy, thereby improving its ecological benefits. For the first time, we established a metacoupled model to quantitatively evaluate aspects of ecosystem sustainability in China, providing insight to the theory and application of sustainability science.

Evaluation of the tourism climate in the Hexi Corridor of northwest China’s Gansu Province during 1980–2012

2016 ◽  
Vol 129 (3-4) ◽  
pp. 901-912 ◽  
Author(s):  
Fuxian Zhang ◽  
Mingjun Zhang ◽  
Shengjie Wang ◽  
Fang Qiang ◽  
Yanjun Che ◽  
...  
Keyword(s):  
Hexi Corridor ◽  
Gansu Province ◽  
Tourism Climate

Trends and Distribution in Mortality Rates of Coronary Heart Disease in Hexi Corridor of Gansu in China from 2006 to 2015

2019 ◽  
Author(s):  
xinghui li ◽  
xiaolan ren ◽  
yan qiao ◽  
ping xie ◽  
nan wang ◽  
...  
Keyword(s):  
Coronary Heart Disease ◽  
Heart Disease ◽  
Mortality Rate ◽  
Rural Areas ◽  
Urban Areas ◽  
Hexi Corridor ◽  
Gansu Province ◽  
Control Measures ◽  
Urban Rural ◽  
Small Change

Abstract Background: The mortality rate of coronary heart disease (CHD) in China is different from region to region, and there are sex, age and urban-rural differences. This study described trend and distribution of CHD in Hexi corridor of Gansu province from 2006 to 2015. Method: The death data of CHD were obtained using the Death Reporting System of Gansu CDC for 2006-2015. The trend of the death cases of CHD by year, month and its distribution by sex, age and region were studied, and the changing characteristics of epidemiology was analyzed. Results: Overall, The mortality rate of CHD in Hexi corridor showed a decline trend from 2006 to 2015, a tendency that higher in winter and spring, and lowest in summer. The relative mortality of males was higher than that of females ( P < 0.05), increased with age ( P < 0.05), and that of rural areas was higher than that of urban areas ( P < 0.05). The trend analysis of death rate for ten-year showed a marked decline in females, an increase in 18-39 years old, a small change in 40-59 years old, a decrease in over 60 years old, and a downward tendency of urban areas. Further analysis showed that the mortality rate of males were higher than that of females in 18-39 years old and 40-59 years old group and also in urban areas group ( P < 0.05), while no sex difference in over 60 years old group and rural areas group ( P > 0.05). Conclusion: The mortality of CHD in Hexi corridor of Gansu province in China was lower than the national average from 2006 to 2015, but increased gradually in specified population such as in males, young and middle-age, rural areas groups. The prevention and control measures should be strengthened in these special populations.

Characteristics and driving forces of spatial expansion of oasis cities and towns in Hexi Corridor, Gansu Province, China

2014 ◽  
Vol 25 (2) ◽  
pp. 250-262 ◽  
Author(s):  
Hailong Liu ◽  
Peiji Shi ◽  
Huali Tong ◽  
Guofeng Zhu ◽  
Haimeng Liu ◽  
...  
Keyword(s):  
Driving Forces ◽  
Hexi Corridor ◽  
Gansu Province ◽  
Spatial Expansion ◽  
Oasis Cities

Spatial Analysis based on ESDA-GIS for Evolvement of Economic Disparities in the Economic Belt along Lan-Xin Railway

2011 ◽  
Vol 347-353 ◽  
pp. 4025-4033
Author(s):  
Yong Ping Bai ◽  
Yong Bin Huang ◽  
Jing Yang
Keyword(s):  
Spatial Interaction ◽  
Hexi Corridor ◽  
Gansu Province ◽  
Tianshan Mountain ◽  
Northern Slope ◽  
Per Capita Gdp ◽  
Qinghai Province ◽  
Economic Disparities ◽  
Per Capita ◽  
Economic Concentration

Based on the index of per capita GDP, spatial-time distribution pattern and spatial interaction types of economic disparities in the economic belt along Lan-Xin Railway during 2000 to 2009 have been examined by the method of combination with spatial autocorrelation analysis and traditional statistic analysis. The conclusions are as follows: the absolute disparity of per capita GDP for administrative counties is increasing constantly, while the economic concentration of those research units fluctuate towards decline and the economic disparities along the Gansu part of Lan-Xin Railway accounts for the largest part of the whole economic belt along Lan-Xin Railway, where the disparities of intra-Gansu grows bigger and that of the inter-regions is getting smaller. The higher level developed counties mainly locate in northern slope of TianShan Mountain, and the western part of Hexi Corridor which covers from Zhangye to Jiayuguan along the Lan-Xin Railway, and those high level counties cluster at intervals; while, the lower level developed counties mainly concentrates in the central part of Gansu province, the eastern part of Hexi Corridor and the eastern part of Qinghai province, and it is obvious to find the trend to agglomerate beside the TianShan Mountain as to the rapid growth counties. The spatial interaction within research units is weak, while the northern slope economic belt and southern slope industries belt of TianShan Mountain which takes the Urumqi as the core city keep great economic growth condition; the central part of Gansu province and the eastern part of Qinghai province is not developed very well and that of the polar cities which are Lanzhou and Xining respectively have a little radiation effect to lead and foster the neighboring counties economic.

Evidence of Miocene crustal shortening in the North Qilian Shan from Cenozoic stratigraphy of the western Hexi Corridor, Gansu Province, China

2009 ◽  
Vol 309 (4) ◽  
pp. 290-329 ◽  
Author(s):  
P. M. Bovet ◽  
B. D. Ritts ◽  
G. Gehrels ◽  
A. O. Abbink ◽  
B. Darby ◽  
...  
Keyword(s):  
Hexi Corridor ◽  
Gansu Province ◽  
Crustal Shortening ◽  
The North ◽  
North Qilian

Analysis of a typical heavy dust pollution weather in Semi-arid region- A Case Study in Eastern Qinghai

2020 ◽  
Author(s):  
xiaoning guo ◽  
yuancang ma
Keyword(s):  
Water Vapor ◽  
Early Stage ◽  
Inversion Layer ◽  
Hexi Corridor ◽  
Gansu Province ◽  
Observation Data ◽  
Cold Air ◽  
Heavy Pollution ◽  
Semi Arid Region ◽  
Sand Dust

&lt;p&gt;&amp;#160;Based on conventional meteorological observation data and particulate matter monitoring data, combined with traceability of pollution sources, the main causes of sand-dust heavy pollution and the characteristics of dust transmission in eastern Qinghai in May 2019 were analyzed by using the principles of meteorology and trajectory analysis.The results show as following&amp;#65306;The heavy dusty weather is mainly affected by the development of the enhanced low-slot eastward of Lake Baikal. The low-slots carry strong cold air moving eastward ,leading to heavy pollution in the eastern part of Qinghai. During the dusty weather, the cold air from the Hexi Corridor was poured into the eastern part of Qinghai from the valley . The dust from Gansu Province entered and then transported from east to west to easdtern Qinghai,causing pollution. The presence of the inversion layer stabilizes the atmospheric stratification in the eastern boundary layer of Qinghai, which is not conducive to the outward spread of pollutants caused by surface turbulence activities. The long-term maintenance of dust that cannot be diffused in time is the main cause of heavy pollution. In the early stage of sand and dust weather, the humidity conditions in the eastern part of Qinghai gradually deteriorated. Before the sand-dust occurred, the sensible heat on the ground increased significantly. The water vapor in the atmosphere weakened, the air was dry, and the water vapor condition, which is an important condition for the formation of sand and dust,was poor. The dust storm transmission route affecting the eastern part of Qinghai is transmitted from southeast to northwest. The mixed layer height and static weather index of the EC numerical forecasts have a good predictive indication during the process. The results of the trajectory analysis also indicate that the dusty weather in the eastern part of Qinghai (Xining, Haidong, etc.) was caused by backward irrigation of sandfrom the Hexi Corridor, and affected Haidong and Xining areas under the influence of the terrain.&lt;/p&gt;

Desertification assessments in the Hexi corridor of northern China’s Gansu Province by remote sensing

2014 ◽  
Vol 75 (3) ◽  
pp. 2715-2731 ◽  
Author(s):  
Lanying Han ◽  
Zhengcai Zhang ◽  
Qiang Zhang ◽  
Xin Wan
Keyword(s):  
Remote Sensing ◽  
Hexi Corridor ◽  
Gansu Province

scholarly journals Diversity of rodents communities in different habitats in Hexi Corridor, Gansu Province

2002 ◽  
Vol 10 (4) ◽  
pp. 386-392
Author(s):  
LI Jun-Sheng ◽  
SONG Yan-Ling ◽  
ZENG Zhi-Gao ◽  
ZHANG Jin-Sheng ◽  
Keyword(s):  
Hexi Corridor ◽  
Gansu Province
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