[1]唐翠平,乌拉,袁思安,等. 沙棘人工林早衰及其更新复壮[J].西北林学院学报,2014,29(05):47-52.[doi:doi:10.3969/j.issn.1001-7461.2014.05.09]
　TANG Cui-ping,WU La,YUAN Si-an,et al. Premature Senescence and Rejuvenation of Hippophae ssp. Plantation[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2014,29(05):47-52.[doi:doi:10.3969/j.issn.1001-7461.2014.05.09]
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 沙棘人工林早衰及其更新复壮()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第29卷
期数:
2014年05期
页码:
47-52
栏目:
出版日期:
2014-09-30

文章信息/Info

Title:
 Premature Senescence and Rejuvenation of Hippophae ssp. Plantation
文章编号:
1001-7461(2014)05-0047-06
作者:
 唐翠平1; 乌拉2; 袁思安1; 郭峰1; 李根前1*; 尤燕3
 （1.西南林业大学，云南 昆明 650224;2.中国林业科学研究院沙漠林业实验中心，内蒙古 磴口 015200；3.陕西省定边县乱井子机械林场，陕西 定边 718699）
Author(s):
 TANG Cui-ping1; WU La2; YUAN Si-an1; GUO Feng1; LI Gen-qian1*; YOU Yan3
 (1.Southwest Forestry University, Kunming,Yunnan 650224, China; 2．Desert Forestry Exeriraental Center，CAF，Dengkou，Inner Mongolia 075200，China；3.Forest Farm of Luan Jing-zi,Dingbian,Shaanxi 718699,China)
关键词:
 ; 沙棘人工林; 早衰特征; 早衰成因; 更新复壮
Keywords:
Hippophae ssp. plantation;  premature features;  premature causes;  renewal rejuvenation
分类号:
S725.7
DOI:
doi:10.3969/j.issn.1001-7461.2014.05.09
文献标志码:
A
摘要:
 针对沙棘人工林大面积早衰问题，在分析其特征、成因的基础上提出更新复壮途径。结果表明：沙棘人工林早衰表现为寿命缩短、生长和繁殖能力下降，形成原因主要包括干旱胁迫、造林密度大、不合理的造林设计等。考虑沙棘克隆习性与生境异质性的耦合作用，可通过及时平茬、配方施肥（激素）、异质性造林设计、径流林业技术促进营养生长和克隆繁殖，从而达到更新复壮或长期维持种群稳定性和克隆持久性之目的。今后应加强沙棘人工林早衰及平茬更新机制研究，为种群持久性维持及早衰种群的复壮提供依据。
Abstract:
 Aiming to solve the problem of premature senescence occurring in a large area of Hippophae ssp. plantation, based on the analysis of the cause of its characteristics, rejuvenation ways for the plantations were discussed. The main features of premature senescence were shortened life expectancy, reduced abilities of growth and reproduction. These were resulted from drought stress, high planting density, and unreasonable afforestation design. Owing to Hippophae ssp.’s cloning habits and coupling effects of habitat heterogeneity, effective rejuvenation approaches were proposed, such as timely stumping, formula fertilization (hormones), heterogeneity afforestation design and runoff forestry technology to promote vegetative growth and clonal propagation, to maintain long-term population stability and cloning persistencey. It was suggested in the future to strengthen the researches in mechanism of premature senescence and rejuvenation, in order to provide evidence for it’s population persistency and rejuvenation.

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备注/Memo

备注/Memo:
 收稿日期：2014-02-24修回日期：2014-05-09
基金项目：国家自然科学基金（31070551）。
作者简介：唐翠平，女，硕士，研究方向：森林培育。E-mail:TCP849592039@163.com
*通信作者：李根前，男，教授，博士生导师，研究方向：森林培育学与森林生态学。
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