广东地区冬季寒害风险辨识-自然灾害学报.PDFVIP

17 5 V o.l 17, No. 5 2008 10 JOURNA L OF NATURAL D ISA STER S O ct. , 2008 : 1004- 4574 2008) 05- 0082- 05 杜尧东, 李春梅, 唐力生, 刘锦銮, 陈新光 , 5 10080) : , , , , , 20 90 4 , 2 13, , , , : ; ; : S426 : A Risk identification of winter. s cold dam age in Guangdong Province DU Y ao-dong, L I Chun-m ei, TANG L -i sheng, L IU J in- luan, CHEN X in-guang C lmi atic and A grom eteorolog ica l C enter of Guangdong Prov ince, Guangzhou 5 10080, Ch ina) Abstract: Based on the princip le o f disaster risk identificat ion, the disaster-pregnant env ironm ent, disaster inducing facto rs, d isaster bearing bod ies, loss and d isaster- resistant capab ility w ere system at ically analyzed fo r Guangdong P rov ince. Resu lts show that m arked m onsoon c lmi ate, N an ling M ounta ins, and specia l c irculat ion pattern w ere the hotbed of breed ing co ld dam age. D isaster inducing factors, such as tem pera ture drop range, low tem perature inten- sity, persisting days o f low temperature and harm fu l chilling accum ulation a ll appears as lat itudina l d istributions w hich are strong or grea t in the north and w eak or sm a ll in the sou th. D ifferent d isaster bearing bodies, for exam- ple, fru it tree, food crop, vegetable as w ell as different variet ies, tree age, deve lopm ent stages, grow ing situations has different low tem pera ture- resisting ab ilities. Four clod dam age in 1990. s cau sed enorm ous losses of m ore than 21. 3 billions in Guangdong P rov ince. Co ld dam age has becom e th ird strong disaster. Co ld dam age m onito ring and e