松杉柏的抗冻性研究
STUDIES ON FREEZING RESISTANCE OF PINE,FIR AND CYPRESS
-
摘要: 松、杉、柏在历次冷冬中,都发生了不同程度的冻害。本文探索研究了26种松、杉、柏的抗冻性,并计算出了各树种的半致死温度,可为云南松、杉、柏树的合理布局提供科学依据。Abstract: Pine, China fir and Cypress are sometimes frostbitten in different degrees in cold winters. In onler to explore the freezing resistance of pine, China fir arid Cypress, studies on the freezing resistance of 26 species of pine, China fir and Cypress were made, and the semi-lethal temperature was calculated. The result can be used as a scientific basis for the rational distribution of pine, China fir and Cypress in Yunnan Province.