Relationship between regional rainstorm index and flood disaster ratio of crop | 哄撮ㄦ涓╂椽娑剧崇郴
2011
Jiang Huifei, China Agricultural University, Beijing (China)锛College of Resource and Environment | Liao Shuhua, China Agricultural University, Beijing (China)锛College of Agriculture and Biotechnology | Pan Xuebiao, China Agricultural University, Beijing (China)锛College of Resource and Environment
According to the daily precipitation data in Beijing area from 1985 to 2008, rainstorm weather index (10.4-38.8 mm) and climate index (daily precipitation 27.5 mm) in Beijing area were obtained by using the determination method of extreme climate event index recommended by IPCC. Based on rainstorm weather index, rainstorm climate index and national rainstorm standard, the number of rainstorm days and rainfall amount in past years were calculated, and the correlation of annual number of rainy days, rainstorm days, precipitation and rainstorm amount with the flood disaster ratio of crop was analyzed, and the results showed that annual number of rainy days and rainstorm days couldnt reflect flood disaster ratio of crop truly, while annual precipitation and rainstorm amount had obvious linear positive correlation with the flood disaster ratio of crop. In addition, the correlation degree between rainstorm amount calculated by regional climate index and flood disaster ratio of crop was the highest, so it was suggested that rainstorm amount calculated by regional rainstorm climate index could be used to predict and evaluate flood disaster.
Afficher plus [+] Moins [-]Mots clés AGROVOC
Informations bibliographiques
Cette notice bibliographique a été fournie par China Agricultural University
Découvrez la collection de ce fournisseur de données dans AGRIS