吉林林业科技
吉林林業科技
길림임업과기
JILIN FORESTRY SCICNCE AND TECHNOLOGY
2013年
6期
10-12
,共3页
梓树%冬季%持续低温%冻害
梓樹%鼕季%持續低溫%凍害
재수%동계%지속저온%동해
Catalpa ovata G.Don%winter%sustainable low-temperature%freeze injury
以长春城区不同地点的梓树绿地为调查对象，对其生长状况和抗低温能力进行评价。结果表明：冻害指数平均值为17．7，最高为24．1；冻害率平均值为34．7％，最高为46．0％。裸地封冻、无雪期长，加之持续低温，是造成冻害的主要原因。
以長春城區不同地點的梓樹綠地為調查對象，對其生長狀況和抗低溫能力進行評價。結果錶明：凍害指數平均值為17．7，最高為24．1；凍害率平均值為34．7％，最高為46．0％。裸地封凍、無雪期長，加之持續低溫，是造成凍害的主要原因。
이장춘성구불동지점적재수록지위조사대상，대기생장상황화항저온능력진행평개。결과표명：동해지수평균치위17．7，최고위24．1；동해솔평균치위34．7％，최고위46．0％。라지봉동、무설기장，가지지속저온，시조성동해적주요원인。
Catalpa ovata G.Don was taken as objects at different sites in Changchun to estimate the growth conditions and low temperature resistance .The results indicated that average value of freeze injury index was 17.7, the highest value was 24.1; average value of freeze injury rate was 34.7&, the highest value was 46.0%.The main reasons of freeze injury were bare land frozen , long snowless stage and sustainable low -temperature.
