中国树种分布区概况。（Survey of Chinese tree species distribution area.）.docVIP

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中国树种分布区概况。（Survey of Chinese tree species distribution area.）.doc

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中国树种分布区概况。（Survey of Chinese tree species distribution area.）

中国树种分布区概况。（Survey of Chinese tree species distribution area.） Survey of Chinese tree species distribution area Chinese species distribution is mainly controlled by the water and heat conditions, in turn Chinese species distribution area can reflect the districts water, heat and other natural environment. According to Chinese vegetation edited by Wu Zhengyi (1980) partition, will China species distribution area is divided into 7 regions. The species distribution area and administrative area are not consistent. I. North China The area to the north east line from Shenyang, South to Gansu, Tianshui, Wudu, along the Qinling Mountains mountain watershed, Funiu Mountain, Huaihe mainstream Bengbu, Anhui, Fengtai, Jiangsu River dam, Yancheng to the west coast. From Liaoning Zhangwu, Fuxin, Hebei Bashang paddock, along the southern margin of the northern slope of Mt. Hengshan, located in Shanxi, the Yellow River in Shaanxi Zhidan, Wubao, Ansai along the Ziwuling Tianshui, about 32.30 DEG -42.30 DEG latitude, longitude 103.5-124.5 degrees. The area from the terrain was divided into hills, plains and mountain 3 part. The climate is characterized by winter sunny dry, hot summer and rainy. The annual average temperature of 8-14.8 DEG C, increasing from north to south, Shenyang, the annual average temperature of 7.8 degrees, 11.6 degrees in Beijing, Henan and Zhumadian. The minimum temperature 14.8 C and 30.5 C -20 (Shenyang); the annual precipitation is 500-1000mm, decrease from east to West Shandong, Jinan 723.7mm 724.7mm 584.4mm, Zhumadian, Xian, Beijing plant growth for a period of 235 days, 265 days in Jinan. There are 89 species, 245 genera and 799 species recorded in the tree of North China. If there are 1000 species of trees in Shaanxi and Gansu, it is estimated that more than one species of pine and Quercus belong to the tree species in this area (1) Liaodong, the hilly area of the Jiaodong Peninsula; The area north of the northeast South line for the community, the East