| 摘要: |
| 根据文献和1999年12月广西霜冻灾害资料,分析研究广西荔枝、龙眼的冻害指标,确定广西荔枝、龙眼的越冬冻害(或霜冻)指标为:极端最低气温-1.9~0.0℃为轻冻害,-3.9~-2.0℃为中度冻害,≤-4.0℃为重冻害。选择30年重现期及5年重现期的冬季最低气温作区划指标,制作广西荔枝、龙眼冻害区划。确定沿海、玉林市南部、大容山南部的北流和玉州部分区域、都安澄江河谷等地为无冻害区;沿海北部、贵港市、南宁市、南宁地区、玉林市北部地区的平原、丘陵及低山地区,梧州市郊区及苍梧县局部,藤县西部局部,右江河谷沿线海拔400~500m以下地区,河池地区的都安到河池一线的河谷平原地区为轻冻害区;梧州市南部和中部(大部),贺州地区南部,柳州地区南部和柳州市大部,河池地区东南部及西部红水河河谷区,百色地区中、南部海拔较低地区、北部的南盘江河谷局部、驮娘江河谷局部,桂林市的恭城河河谷局部,十万大山、六万大山、大明山、西大明山等海拔较高区域为中冻害区;贺州地区的北部和中部,桂林市大部、柳州地区和柳州市北部、河池地区北部和西部山区,百色地区北部山区及南部海拔较高(600m以上)山区为重冻害区。 |
| 关键词: 荔枝 龙眼 冻害 区划 |
| DOI： |
| 投稿时间：2001-11-29修订日期：2002-02-19 |
| 基金项目:广西气象科学研究所基金项目(桂气科发[2000]第5号) |
|
| Division of Freeze Injury of Lichee and Longan in Guangxi |
|
Tu Fangxu, Su Zhi, Li Yanlan
|
| (Guangxi Climate Centre, Minzhu Dadao, Nanning, Guangxi, 530022, China) |
| Abstract: |
| Freeze indices for lichee and longan in Guangxi are analyzed in terms of the freeze injury information collected in Dec. 1999 and relative references. The freeze injury indices are divided into light freeze (-1.9 to 0.0℃),middle freeze (-3.9 to -2.0℃),heavy freeze(≤ -4℃).The 30-year return period and 5-year return period were used as criteria.The freeze free areas cover the coastal area, south Yulin city, parts of Beiliu and Yuzhou,the river valley of Deng River in Du'an.The light freeze areas cover the plain,hillly and low mountain areas of north coast, Guigang city,Nanning city,Nanning prefecture and north Yulin;Wuzhou outskirt,parts of Cangwu,west Tengxian,the river valley areas under elevation of 400 to 500 m along You River,the river valley areas from Du'an to Hechi.The middle freeze areas cover the most parts of south and middle Wuzhou,south Hezhou,south Liuzhou prefecture and most parts of Liuzhou city,southeast Hechi prefecture,the river valley of Red River in west Hechi prefecture,low elevation areas in south and middle and parts of the river valleys of Nanpan River and Tuoniang River in north Beise prefecture,parts of Gongcheng River in Guilin,the high elevation areas of Mt.s Shiwandashan,Liuwandashan,Damingshan and West Danmingshan.The heavy freeze areas cover north and middle Hezhou,most parts of Guilin, north Liuzhou prefecture and Liuzhou city,the mountain areas of north and west Hechi prefecture, mountain areas in north and high elevation areas in south Beise prefecture. |
| Key words: lichee longan freeze injury division |
