摘要
研究了沙棘作为下木在混交林中的作用结果表明，沙棘有明显的供Ｎ效应．林冠下生长７ａ的沙棘，年平均固Ｎ量达５４ｋｇ·ｈｍ－２、土壤含Ｎ量比杨树或柳树纯林提高２０～２２％．主林木高生长比纯林提高１８～１９．４％
The role of Hippophae rhamnoides as the undergrowth in mixed forests was studied. The results show that H. rhamnoide has a significant effect of N supply, and its annual average N fixing amount is 54 kg· hm-2 in 7 years old stand, Comparing with pure Populus sp. And Salix matsuda na stands, nitrogen content in soil of mixed stand is increased by 20～22 %, and height increment of main trees by 18～19. 4 %.
出处
《应用生态学报》
CAS
CSCD
1996年第4期354-358,共5页
Chinese Journal of Applied Ecology
基金
中国科学院"八五"重点资助
关键词
混交林
固N树种
沙棘
根瘤菌
Nitrogen-fixing tree, Mixed forest, Hippophae rhamnoides.
