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author:

Wu, J.J. (Wu, J.J..) [1] | Geng, G.P. (Geng, G.P..) [2] | Zhou, H.K. (Zhou, H.K..) [3] | Liu, J.H. (Liu, J.H..) [4] | Wang, Q.F. (Wang, Q.F..) [5] | Yang, J.H. (Yang, J.H..) [6]

Indexed by:

Scopus CSCD

Abstract:

As an important part of agricultural drought risk, agricultural drought vulnerability helps effectively prevent and alleviate drought impacts by quantifying the vulnerability as well as identifying its spatial distribution characteristics. In this study, global agricultural cultivation regions were chosen as the study area; six main crops (wheat, maize, rice, barley, soybean, sorghum) were selected as the hazard-affected body of agricultural drought. Then, global vulnerability to agricultural drought was assessed at a 0.5° resolution and finally, its distribution characteristics were revealed. The results indicated that the area percentages of different grades of global vulnerability to agricultural drought from low to very high were 38.96%, 28.41%, 25.37%, and 7.26%, respectively. This means that the total area percentage of high and very high vulnerability zones exceeded 30% of the study area. Although high and very high vulnerability zones were mainly distributed in arid and semi-arid regions, approximately 40% of those above were distributed in humid and semi-humid regions. In addition, only about 15% of the population in this study was located in the high vulnerability regions. Among the vulnerability factors, water deficit during the growing season and the irrigation area ratio are the key factors affecting regional vulnerability. Therefore, the vulnerability could be reduced by adjusting crop planting dates and structures as well as by improving irrigation level and capacity. © 2017, Science China Press and Springer-Verlag Berlin Heidelberg.

Keyword:

Agriculture; Drought; Globe; Spatial distribution; Vulnerability

Community:

  • [ 1 ] [Wu, J.J.]Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education, Beijing Normal University, Beijing, 100875, China
  • [ 2 ] [Wu, J.J.]State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, 100875, China
  • [ 3 ] [Wu, J.J.]Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China
  • [ 4 ] [Wu, J.J.]Center for Drought and Risk Research, Beijing Normal University, Beijing, 100875, China
  • [ 5 ] [Geng, G.P.]Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education, Beijing Normal University, Beijing, 100875, China
  • [ 6 ] [Geng, G.P.]State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, 100875, China
  • [ 7 ] [Geng, G.P.]Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China
  • [ 8 ] [Geng, G.P.]Center for Drought and Risk Research, Beijing Normal University, Beijing, 100875, China
  • [ 9 ] [Zhou, H.K.]Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education, Beijing Normal University, Beijing, 100875, China
  • [ 10 ] [Zhou, H.K.]State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, 100875, China
  • [ 11 ] [Zhou, H.K.]Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China
  • [ 12 ] [Zhou, H.K.]Center for Drought and Risk Research, Beijing Normal University, Beijing, 100875, China
  • [ 13 ] [Liu, J.H.]Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
  • [ 14 ] [Wang, Q.F.]College of Environment and Resources, Fuzhou University, Fuzhou, 350116, China
  • [ 15 ] [Yang, J.H.]Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education, Beijing Normal University, Beijing, 100875, China
  • [ 16 ] [Yang, J.H.]State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, 100875, China
  • [ 17 ] [Yang, J.H.]Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China
  • [ 18 ] [Yang, J.H.]Center for Drought and Risk Research, Beijing Normal University, Beijing, 100875, China

Reprint 's Address:

  • [Wu, J.J.]Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education, Beijing Normal UniversityChina

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Source :

Science China Earth Sciences

ISSN: 1674-7313

Year: 2017

Issue: 5

Volume: 60

Page: 910-920

2 . 0 5 8

JCR@2017

6 . 0 0 0

JCR@2023

ESI HC Threshold:177

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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