NDLI: Trend of water resource amount, drought frequency, and agricultural exposure to water stresses in the karst regions of South China

Content Provider	Springer Nature Link
Author	Wan, Long Zhou, Jinxing Guo, Hongyan Cui, Ming Liu, Yuguo
Copyright Year	2015
Abstract	Frequent drought occurrences have adverse effects on the availability of water resources and have consequently caused growing risks of water-related stresses in the karst regions of South China. For better water management, we investigated the trend of water resources in the past five decades and analyzed the drought frequency distribution in these regions with the of regional water resource amount series. Moreover, we assessed the decadal variability in the agricultural exposure to water stresses in the karst regions of South China. Results indicated that water resources were had a lower amount in most provinces during 2000–2013. Compared with 1961–1999, 2000–2013 showed a decline of 1139.3 × 10$^{8}$ m$^{3}$ (8.51 %) in the average annual water resources. From the periodic pattern analysis, the periods 1987–1988 and 2009–2011 experienced a negative phase and the lowest amount of water resources in the cycle period of 20 years (dominant cycle period). The generated GEV distribution was a good fit to the probability distribution of extremely low water resource amount. Based on the analysis results, low water resource amount (lower than the value with a return period of 10 years) occurred 2.5 times on average in every province during 2000–2013. Moreover, the agricultural exposures to water stresses were investigated and found to exhibit different degrees of severity across regions and decades. The proportions of agriculture land areas exposed to water stresses in the 1960s, 1970s, 1980s, and 1990s are 39.31, 42.15, 41.28, and 45.78 %, respectively. In the 2000s, more and more agricultural lands (about 68.37 %) were exposed to water stresses, mainly in Yunnan, Guangzhou, Guangxi, and Sichuan. Particularly, large areas exhibited high agricultural exposures to water stresses in 2006 and 2009. The karst regions of south China are facing great challenges in managing water resources against droughts.
Starting Page	23
Ending Page	42
Page Count	20
File Format	PDF
ISSN	0921030X
Journal	Natural Hazards
Volume Number	80
Issue Number	1
e-ISSN	15730840
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-09-14
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Trend of water resource amount Drought frequency Agricultural exposure to water stresses Karst regions of South China Natural Hazards Hydrogeology Geophysics/Geodesy Geotechnical Engineering & Applied Earth Sciences Civil Engineering Environmental Management
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science Water Science and Technology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

An analysis of the drought in Yunnan, China, from a perspective of society drought severity

The spatial exposure of the Chinese infrastructure system to flooding and drought hazards

Analysis of hydrological drought frequency for the Xijiang River Basin in South China using observed streamflow data

Assessment of physical vulnerability to agricultural drought in China

The drought trend and its relationship with rainfall intensity in the Loess Plateau of China

Increase in flood and drought disasters during 1500–2000 in Southwest China

Quantitative assessment and spatial characteristic analysis of agricultural drought risk in China

Adapting agriculture to the drought hazard in rural China: household strategies and determinants

SPI-based evaluation of drought events in Xinjiang, China

Trend of water resource amount, drought frequency, and agricultural exposure to water stresses in the karst regions of South China

Similar Documents

An analysis of the drought in Yunnan, China, from a perspective of society drought severity

The spatial exposure of the Chinese infrastructure system to flooding and drought hazards

Analysis of hydrological drought frequency for the Xijiang River Basin in South China using observed streamflow data

Assessment of physical vulnerability to agricultural drought in China

The drought trend and its relationship with rainfall intensity in the Loess Plateau of China

Increase in flood and drought disasters during 1500–2000 in Southwest China

Quantitative assessment and spatial characteristic analysis of agricultural drought risk in China

Adapting agriculture to the drought hazard in rural China: household strategies and determinants

SPI-based evaluation of drought events in Xinjiang, China

Trend of water resource amount, drought frequency, and agricultural exposure to water stresses in the karst regions of South China