| Agricultural drought risk assessment in Shaanxi province using principal component analysis and AHP |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2017.01.33 |
| Key Words: agricultural drought risk assessment principal component analysis analytic hierarchy process(AHP) Shaanxi province |
| Author Name | Affiliation | | HE Bin | Institute of Water Resources and Hydro-electric Engineering, State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area, Xi'an University of Technology, Xi'an, Shaanxi 710048, China | | WANG Quan-jiu | Institute of Water Resources and Hydro-electric Engineering, State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area, Xi'an University of Technology, Xi'an, Shaanxi 710048, China | | WU Di | China Irrigation and Drainage Development Center, Beijing 100044, China | | SU Li-jun | Institute of Water Resources and Hydro-electric Engineering, State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area, Xi'an University of Technology, Xi'an, Shaanxi 710048, China | | SHAN Yu-yang | Institute of Water Resources and Hydro-electric Engineering, State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area, Xi'an University of Technology, Xi'an, Shaanxi 710048, China |
|
| Hits: 1857 |
| Download times: 1068 |
| Abstract: |
| Agricultural drought disaster mechanism is complex, and its evaluation index is numerous. With the aim of developing reasonable evaluation index and evaluation of drought risk, this study took Shaanxi province as the research object, based on principal component analysis and AHP with the combination of agricultural drought risk assessment index system and evaluation method. The results showed that under the condition of considering regional drought resistance ability, drought risk showed a decreasing trend from north to south and from east to west of Shaanxi. For Yulin region of northern and eastern Weinan, Shangluo prefecture, agricultural drought risk is higher. By combining principal component analysis and AHP evaluation system, we can select evaluation index, reduce index number, and accurately assess the drought risk. |
|
|
|