scholarly journals Review of “Study on the Driving Mechanism of Hydrologic Drought in Karst Basin Based on Landform Index: A Case Study of Guizhou, China” by He et al.

2018 ◽  
Author(s):  
Anonymous
Keyword(s):  
Driving Mechanism ◽  
Hydrologic Drought

scholarly journals Study On The Driving Mechanism Of Hydrologic Drought In Karst Basin Based On Landform Index: A Case Study of Guizhou, China

2018 ◽  
Author(s):  
Zhonghua He ◽  
Hong Liang ◽  
Zhaohui Yang ◽  
Xinbo Zeng
Keyword(s):  
Drainage Basin ◽  
Regional Distribution ◽  
Guizhou Province ◽  
Drought Severity ◽  
Driving Mechanism ◽  
Drainage Basins ◽  
The North ◽  
Hydrologic Drought ◽  
Hydrological Droughts

Abstract. In recent years, hydrological droughts in the Karst Basins have become more frequent and have caused serious ecological and environmental problems. This paper took the karst drainage basin of Guizhou, China as the study area to analyze the geomorphologic distribution and the temporal-spatial variations of hydrological droughts. The results indicated that (1) the rainfall and its variation during drought periods had very limited impacts on the hydrological droughts in karst drainage basins; (2) During 2000–2010, the hydrological droughts in Guizhou Province increased year by year, and the inter-annual variation of hydrological droughts in Guizhou had obvious stage characteristics. The overall regional distribution of hydrological drought severity in Guizhou is severe in the south and light in the north, severe in the west and light in the east. (3) From the overall distribution of the landform types, the mountains, hills and basins have a certain impact on hydrologic droughts, but the impacts are insignificant. From the distribution of single landform types, the influences on hydrological droughts are particularly significant in high-medium mountains, deep-high hills and high basins, and where are also relatively light areas for hydrologic drought severity, While the relatively serious areas of that in the low mountains, shallow-low hills and low basins.

scholarly journals Driving Factors and Future Prediction of Land Use and Cover Change Based on Satellite Remote Sensing Data by the LCM Model: A Case Study from Gansu Province, China

Sensors ◽  
2020 ◽  
Vol 20 (10) ◽  
pp. 2757 ◽  
Author(s):  
Kongming Li ◽  
Mingming Feng ◽  
Asim Biswas ◽  
Haohai Su ◽  
Yalin Niu ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Satellite Remote Sensing ◽  
Gansu Province ◽  
Driving Factors ◽  
Driving Mechanism ◽  
Second Stage ◽  
Arid And Semiarid ◽  
Land Use And Cover

Land use and cover change (LUCC) is an important issue affecting the global environment, climate change, and sustainable development. Detecting and predicting LUCC, a dynamic process, and its driving factors will help in formulating effective land use and planning policy suitable for local conditions, thus supporting local socioeconomic development and global environmental protection. In this study, taking Gansu Province as a case study example, we explored the LUCC pattern and its driving mechanism from 1980 to 2018, and predicted land use and cover in 2030 using the integrated LCM (Logistic-Cellular Automata-Markov chain) model and data from satellite remote sensing. The results suggest that the LUCC pattern was more reasonable in the second stage (2005 to 2018) compared with that in the first stage (1980 to 2005). This was because a large area of green lands was protected by ecological engineering in the second stage. From 1980 to 2018, in general, natural factors were the main force influencing changes in land use and cover in Gansu, while the effects of socioeconomic factors were not significant because of the slow development of economy. Landscape indices analysis indicated that predicted land use and cover in 2030 under the ecological protection scenario would be more favorable than under the historical trend scenario. Besides, results from the present study suggested that LUCC in arid and semiarid area could be well detected by the LCM model. This study would hopefully provide theoretical instructions for future land use planning and management, as well as a new methodology reference for LUCC analysis in arid and semiarid regions.

scholarly journals The Unbalanced Analysis of Economic Urbanization—A Case Study of Typical Cities in China

2019 ◽  
Vol 9 (1) ◽  
pp. 13 ◽  
Author(s):  
Xiangyang Cao ◽  
Bingzhong Zhou ◽  
Yishao Shi ◽  
Xiaowen Pei
Keyword(s):  
Industrial Structure ◽  
Driving Mechanism ◽  
Regional Economies ◽  
Capital Cities ◽  
Policy System ◽  
Environment Policy ◽  
Chinese Characteristics ◽  
Inducing Factors ◽  
Regional Imbalance

In the process of economic urbanization, because of competition among cities, agglomerations and polarization of regional economies are produced. This paper studies the urban polarization with Chinese characteristics and the regional economic urbanization, which include the imbalance under the influence of different geographical factors between the east and west of China and the imbalance under the comprehensive influence of natural and human factors in the province. The urban economic polarization index (UEPI) is constructed to describe the regional imbalance caused by the economic polarization of capital cities in China. The purpose is to explore the polarization of provincial capitals in their respective provinces and to reveal the strength and evolution of their role in the imbalance of economic urbanization. Then, combined with relevant analysis of natural and socio-economic background data, the induced factors and the mechanism of urban polarization are diagnosed. The results show the following: (1) The UEPI can accurately measure the polarization level of provincial capitals through the calculation of typical cities. (2) Based on the UEPI, capital cities can be divided into four categories, which include inapparent, obvious, prominent, and striking. Different cities have different effects on the imbalance in economic urbanization. (3) The main inducing factors of urban polarization are the resource environment, policy system, industrial structure, investment, scientific and technological innovation, location, and extroversion. The policy system is often an important link that integrates and adjusts various factors to form a comprehensive driving mechanism.

scholarly journals The Formation of Government-Oriented Creative Community and Its Driving Mechanisms: A Case Study of the 39° Space Art Creative Community in Foshan, China

2019 ◽  
Vol 11 (3) ◽  
pp. 625 ◽  
Author(s):  
Yanfeng Jiang ◽  
Qinglan Qian ◽  
Xiaoling Zhang ◽  
Yingbiao Chen
Keyword(s):  
Strong Support ◽  
Community Services ◽  
Creative Industries ◽  
Sustainable Urban Development ◽  
Driving Mechanism ◽  
Market Demand ◽  
High Quality ◽  
The Government ◽  
Space Art

With the arrival of the era of the creative economy, the “creative community”, a joint product of the regional/community revival movement and the localization of cultural and creative industries, has become a new goal of sustainable urban development. Creative communities can be government-oriented (top-down), or they can involve a sequence of autogenic developments (bottom-up) depending on the initial motivating force behind their formation. This paper provides a case study of the government-oriented Foshan 39° Space Art Creative Community (hereinafter, the 39° Community), though questionnaires, interviews, field observations, and other methods, to obtain a better understanding of how government-oriented creative communities formed. The paper discusses the mechanisms driving such communities in Chinese cities by constructing a driving mechanism model. The results show that policy decisions, under a special policy and industrial background jointly provided by the Foshan municipal government and the Nanhai District government together, is the initial impetus for the emergence of the 39° Community. The community has a concise and flexible organizational structure, creative community members, reasonable community function partitioning, a vibrant and innovative environment, and a variety of creative elements. Finally, the key to the sustainable development of the government-oriented creative community lies in the combined effect of endogenous and exogenous motivations that include a strong support from the local government, market demand, a favorable location, high-quality community services, and creative spirit. High-quality community service is a critical factor in the interaction between exogenous forces and endogenous factors because it can create bridges among governments, enterprises, employees, and the community.

scholarly journals Study On the Driven Mechanism of Watershed Hydrological Drought Based on Geomorphological Spatial Distribution Pattern: A Case Study of Guizhou, China

2021 ◽  
Author(s):  
Zhonghua he ◽  
Hong Liang ◽  
Zhaohui Yang
Keyword(s):  
Annual Variation ◽  
Hydrological Drought ◽  
Guizhou Province ◽  
Low Flow ◽  
Drought Severity ◽  
The North ◽  
Driving Mechanisms ◽  
Hydrologic Drought ◽  
Hydrological Droughts

Abstract In recent years, hydrological drought has become more and more frequent, which has caused serious ecological and environmental problems. This paper is taking Guizhou province of China as an example to analyze the geomorphologic distribution and temporal-spatial evolution of hydrological droughts, and to study driving mechanisms of both the rainfall in the dry periods and geomorphologic factor on the hydrological droughts, based on the hydrometeorological data during the years 2000-2010, and the TM and DEM data. The results show that (1) the rainfall and its variation in the low-flow seasons have less impacts on the hydrologic drought and its variation; (2) the hydrologic drought severity in Guizhou was increasing year by year during the years 2000-2010, and showing the inter-annual variation with obvious stage characteristics, and the regional hydrologic drought was presented the more serious in the South than in the North, and the less serious in the East than in the West; and (3) in terms of the overall distribution of landform types, the mountain, hill and basin have less impacts on hydrological droughts; in terms of the distribution of single geomorphic type, hydrological droughts are significantly influenced by the high-medium mountain, deep-high hill and high basin, where the hydrological droughts are relatively lighter. While there are more serious areas in the low basin, shallow-low hill and low mountain.

Green space pattern changes and its driving mechanism: a case study of Nanjing metropolitan area

2020 ◽  
Vol 40 (21) ◽  
Author(s):  
赵海霞，王淑芬，孟菲，牛铭杰，骆新燎 ZHAO Haixia
Keyword(s):  
Metropolitan Area ◽  
Green Space ◽  
Driving Mechanism ◽  
Space Pattern
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