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	陕北半干旱黄土区林分混交模式对沙棘生长的影响
其他题名	Influence of Stand Mixed Pattern on Growth of Hippophae rhamniodes L. subsp. sinensis in Semi-Arid Region of Loess Plateau in North Shaanxi,China
	郑学良; 朱清科; 赵彦敏; 王露露; 马欢; 刘蕾蕾
来源期刊	东北林业大学学报
ISSN	1000-5382
出版年	2013
卷号	41 期号:6 页码:1-4,18
中文摘要	通过调查陕北半干旱黄土区不同立地类型下不同混交林中沙棘的各项生长指标,研究不同混交模式对沙棘生长的影响,以期为该地区沙棘人工林的稳定性评价和改良提供依据。结果表明:(1)在阴坡沙棘混交林的林分结构比纯林好,尤其是刺槐沙棘混交林和山杏沙棘混交林,而阳坡沙棘纯林的林分结构较合理;阴坡和阳坡枯立木密度与林分总密度相关性都较强,均随着林分密度的增大而增大。(2)阴坡沙棘新梢生长量的大小顺序为:山杏沙棘混交林、刺槐沙棘混交林、沙棘纯林、油松沙棘混交林,阳坡为油松沙棘混交林最高、沙棘纯林最低;沙棘林的累积生物量在阴坡和阳坡分别以山杏沙棘混交林和刺槐沙棘混交林最大,都以油松沙棘混交林最小,与当年新梢生长量相关性系数分别为0.898、0.585。(3)沙棘林分更新阴坡以沙棘纯林和刺槐沙棘混交林较好,阳坡以刺槐沙棘混交林和山杏沙棘混交林较好,与沙棘林分结构和生长状况的规律不一致。以上研究结果表明:无论在阴坡还是阳坡,沙棘与刺槐混交均有利于沙棘的生长,且更新能力较强,可以做为沙棘纯林的改造目标,促进沙棘群落持续稳定发育。
英文摘要	An investigation was conducted to study the effects of different mixed model on the growth of Hippophae rhamniodes L. subsp. sinensis in semi-arid region of Loess Plateau in North Shaanxi,China. Various indexes influencing the growth of H. rhamnoides L. subsp. sinensis were investigated in different models of mixed forests in different site types for evaluating and improving the stability of H. rhamnoides L. subsp. sinensis plantation. In shady slope,the stand structure of mixed H. rhamnoides L. subsp. sinensis is better than that of pure forest,and pure H. rhamnoides L. subsp. sinensis forest structure is more reasonable in sunny slope. The growth increment order of H. rhamnoides L. subsp. sinensis shoots is Prunus armniacal+H. rhamnoides L. subsp. sinensis,Robinia pseudoacacia L+H. rhamnoides L. subsp. sinensis,pure H. rhamnoides L. subsp. sinensis and Pinus tabulaeformis+H. rhamnoides L. subsp. sinensis. In sunny,Pinus tabulaeformis+H. rhamnoides L. subsp is the highest mixed forest and pure H. rhamnoides L. subsp. sinensis is lowest. The accumulative dry matter of Prunus armniacal H. rhamnoides L. subsp. sinensis mixed forest and R. pseudoacacia L H. rhamnoides L. subsp. sinensis mixed forest is largest and that in Pinus tabulaeformis H. rhamnoides L. subsp. sinensis mixed forest is least in both shady slope and sunny slope with the correlation coefficient for shoots growth of0.898 and0.585,respectively. Pure H. rhamnoides L. subsp. sinensis and Robinia pseudoacacia L+H. rhamnoides L. subsp. sinensis forest in shady slope and R. pseudoacacia L+H. rhamnoides L. subsp. sinensis and P. armniacal+H. rhamnoides L. subsp. sinensis mixed forest in sunny slope are fit for regeneration,and the results are inconsistent to H. rhamnoides L. subsp. sinensis forest stands structure and growth status. Therefore,both in shady slope or the sunny,R. pseudoacacia L. is favorable for the growth of H. rhamnoides L. subsp. sinensis with higher regeneration ability. It can be used as the target of pure H. rhamnoides L. forest for the continuous steady development of H. rhamniodes community.
中文关键词	沙棘 ; 林分结构 ; 新梢生长量 ; 更新能力 ; 林分改造
英文关键词	Hippophae rhamnoides L. subsp. sinensis Stand structure Shoots growth Regeneration ability Stand improvement
语种	中文
国家	中国
收录类别	CSCD
WOS类目	BIOCHEMISTRY MOLECULAR BIOLOGY
WOS研究方向	Biochemistry & Molecular Biology
CSCD记录号	CSCD:4867457
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229438
作者单位	北京林业大学, 水土保持与荒漠化防治教育部重点实验室, 北京 100083, 中国
推荐引用方式 GB/T 7714	郑学良,朱清科,赵彦敏,等. 陕北半干旱黄土区林分混交模式对沙棘生长的影响[J]. 北京林业大学,2013,41(6):1-4,18.
APA	郑学良,朱清科,赵彦敏,王露露,马欢,&刘蕾蕾.(2013).陕北半干旱黄土区林分混交模式对沙棘生长的影响.东北林业大学学报,41(6),1-4,18.
MLA	郑学良,et al."陕北半干旱黄土区林分混交模式对沙棘生长的影响".东北林业大学学报 41.6(2013):1-4,18.