Spatiotemporal difference analysis of drought on wine grape in Ningxia based on crop water deficit indexChinese Full Text
LI Yashan;LI Hua;WANG Hua;WANG Yanjun;College of Enology,Northwest A ＆ F University;Shaanxi Engineering Research Center for Viti Viniculture;Heyang Grape Experiment and Demonstration Stations of Northwest A ＆ F University;
Abstract: Crop water deficit index（ CWDI） is one of the important indicators in measuring drought severity.Analyzing the spatiotemporal variation of CWDI is an important means to cope with drought scientifically and effectively. Based on the weather data from 24 meteorological stations in Hui Ningxia Autonomous Region during 30 years,this study calculated the water requirement of wine grape by FAO Penman-Monteith model and decade drop coefficient method,and combining with effective rainfall,analyzed the spatiotemporal variation of CWDI of wine grape in Ningxia Hai Autonomous Region,and preliminary explored the drought frequency as well. Results show that,the CWDI of wine grape in Ningxia Hui Autonomous Region first presents an overall rising tendency,then drops and then rises again. The maximum value of CWDI appears in the first ten days of June.
Keywords：
Ningxia Hui Autonomous Region; wine grape（SWDI）; crop water deficit index; drought frequency; Mann-Kendall test;
- DOI：
10.13577/j.jnd.2014.0426
- Series：
- Subject：
- Classification Code：
S663.1;S423
- Mobile Reading
Read on your phone instantly
Step 1Scan QR Codes
"Mobile CNKI-CNKI Express" App
Step 2Open“CNKI Express”
and click the scan icon in the upper left corner of the homepage.
Step 3
Scan QR Codes
Read this article on your phone.
- HTML
- CAJ Download
- PDF Download
Download the mobile appuse the app to scan this coderead the article.
Tips: Please download CAJViewer to view CAJ format full text.
Download: 354 Page: 203-211 Pagecount: 9 Size: 1166K
Citation Network
Related Literature
- Similar Article
- Reader Recommendation
- Associated Author