DETERMINATION ABOUT THE NORTHWESTERN AREA LIMIT OF PINUS KORAIENSIS AND THE GEOGRAPHIC OCCURRENCE OF PINUS SIBIRICA  

作　　者：Zhao Guangyi Hou AijuNortheast Forestry UniversityYangChuntianCommittee of Science and Technology of Hcilongjiang Province 

出　　处：《Journal of Northeast Forestry University》1991年第1期42-47,共6页

摘　　要：By investigation, studying and discussion for 9 years, the determination that it should be Pinus sibirica growing in the Mohe county, Daxing'anling Mountains area, China, rather thanpinus koraiensis there, is made to correct a false argument in some works from 1950s' till now that Pinus koraiensis area limit reach Daxing'anling Mountain. The results are as follows: (1) The species so called as Pinus koraiensis found in northwest of Daxing'anling Mountain is Pinus Sibirica indeed; There arc no natural distribution of Pinus Koraiensis in Daxing'anling Mountain. Its northwest area limit only reach Shcngshan, Aihui county; (3) There is about 500km of space between the area limits of Pinus koraiensis and that of Pinus sibirica, no mixed growing area. According to above, a sketch map is made to describe different area limit of the two species at Daxing'anling Mountain and nearby.By investigation, studying and discussion for 9 years, the determination that it should be Pinus sibirica growing in the Mohe county, Daxing'anling Mountains area, China, rather thanpinus koraiensis there, is made to correct a false argument in some works from 1950s' till now that Pinus koraiensis area limit reach Daxing'anling Mountain. The results are as follows: (1) The species so called as Pinus koraiensis found in northwest of Daxing'anling Mountain is Pinus Sibirica indeed; There arc no natural distribution of Pinus Koraiensis in Daxing'anling Mountain. Its northwest area limit only reach Shcngshan, Aihui county; (3) There is about 500km of space between the area limits of Pinus koraiensis and that of Pinus sibirica, no mixed growing area. According to above, a sketch map is made to describe different area limit of the two species at Daxing'anling Mountain and nearby.

关 键 词：Pinus koraiensis Pinus sibirica Daxing'anling Mountain Area limit 

分 类 号：S7[农业科学—林学]