黄土区油松飞播造林效果及其林学特性的研究

›› 1982, Vol. 18 ›› Issue (4): 357-365.

黄土区油松飞播造林效果及其林学特性的研究

周泽生

中国科学院西北水土保持研究所

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1982-11-25 发布日期:1982-11-25

STUDIES ON THE EFFECTIVENESS OF AERIAL SOWING OF CHINESE PINE (PINUS TABULAEFORMIS CARR.) IN THE LOESS AREAS AND ITS RELATED FORESTRY CHARACTERS

Zhou Ze-sheng

North-western Institute of Water and Soil Conservation,Academia Sinica

Received:1900-01-01 Revised:1900-01-01 Online:1982-11-25 Published:1982-11-25

摘要/Abstract

摘要： 油松的林学特性与飞播造林成效的关系很大。本文研究了油松种子萌发,幼苗成活、生长发育规律以及抗旱、耐寒等生物、生态学特性对飞播的影响。研究结果表明:油松种子吸水萌发快,播后有80毫米降水量,7天以上连阴雨天即可发芽和出苗;胚根向地性强,扎根快,扎根深;根系发达,适应性强。因此,油松是适于飞播的优良树种,

Abstract: This paper deals mainly with the relation of forestry characters of Chinese pine to the effectiveness of aerial sowing in the Loess Areas.Experiments and observations were made on the germination of seeds,survival percentage of young seedlings,rules of growth and development as well as the ability of drought-resistance and cold tolerance which conducted in order to find out the influence of these biological and ecological characters upon the effectiveness of aerial sowing of Chinese pine in these areas. Results showed that the seeds of Chinese pine were small enough to have a close contact with the soil and thus germinated easily.If there were 80mm of rainfall and 7 cloudy or rainy days succeedingly,the seeds sowed would germinate quickly and successfully.The seedlings have a strong geotropism so that they have deep and well-developed root system. These fine forestry characters of Chinese pine made it possible to be a nice tree species for successful aerial sowing in the Loess Areas.

周泽生. 黄土区油松飞播造林效果及其林学特性的研究[J]. , 1982, 18(4): 357-365.

Zhou Ze-sheng. STUDIES ON THE EFFECTIVENESS OF AERIAL SOWING OF CHINESE PINE (PINUS TABULAEFORMIS CARR.) IN THE LOESS AREAS AND ITS RELATED FORESTRY CHARACTERS[J]. , 1982, 18(4): 357-365.