中国辽西地区油松针阔混交林生态效益的研究

辽西地区位于北纬40°20′—42°20′,东经119°—122°之间,处于大小凌河流域地区,包括建平、建昌、凌源、朝阳、北票、喀左、义县、锦西、阜新等市县,主要由努鲁儿虎和医巫闾等几条山脉构成西部山地,地势起伏,多为低山丘陵,海拔高度一般在400—1,200米之间。气候属大陆性,冬季漫长,夏季炎热,春秋温和而短促,年平均气温7.0°—9.1℃,绝对最高温42℃,绝对最低温-31.1℃,绝对年温度变化振幅剧烈,可达70℃以上,年平均降

STUDIES ON THE ECOLOGICAL BENEFIT OF THE MIXED FOREST OF CHINESE PINE WITH BROADLEAF TREES IN THE WEST PART OF LIAONINGPROVINCE

This paper deals with the ecological studies on the comparison between the mixed forest of Chinese pine Pinus tabulaeformis Carr. with broadleaf trees and the pure Chinese pine forest. The result of our studies shows that in the soil erosion area of Western Liaoning Province of China the mixed forest of Chinese pine with broadleaf trees is superior to the pure Chinese pine forest not only in increasing its soil humidity, humus content and growth rate, but also in improving its microclimate to reduce the dam...