干旱区生态环境知识资源中心(Arid): 荒漠草原区不同林龄柠条林物种多样性研究

Arid

	荒漠草原区不同林龄柠条林物种多样性研究
其他题名	A research on species diversity of artificial Caragana intermedia forests in desert steppe
	李淑君; 李国旗; 王磊; 徐坤; 陈林
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2014
卷号	28 期号:6 页码:82-87
中文摘要	开展对荒漠草原区固沙人工柠条林生长过程中地上植被的物种多样性变化特征研究,对于分析种植人工柠条林对退化荒漠草原治理效果评价具有重要的指导意义。文中采用时空替代法,以天然草地为对照,对7a、16a、25a、37a柠条林组成的序列进行地上植被的物种多样性研究,并用方差分析和LSD多重比较的方法研究了植物群落间多样性指数的差异程度。研究表明:1)在退化荒漠草原区,种植柠条林后比未种植前的半固定沙丘地上植被物种数目明显增加,种植柠条林对干旱半干旱荒漠草原区退化荒漠草原具有显著的生态恢复效应。2)不同林龄柠条林物种多样性存在显著差异。3)种植柠条林后,相邻生态系统之间地上植被物种逐渐被新物种替代,而建林末期与初期相比物种组成发生了较大变化,约有42%的物种被其他物种替代。4)建议研究区在建植20年左右时,对其进行平茬处理。
英文摘要	Carrying on vegetation succession variation studies in sand desert grassland during the growth of artificial C. intermedia forest has important guiding significance for analysis and evaluation of treatment effect of planting artificial C. intermedia forests for desert grassland degradation. In this paper,with natural grass as a control, vegetation species diversities of 7a,16a,25a,37a artificial C. intermedia forests were studied,and variance analysis and multiple comparisons were used to study the difference degrees among the plant community diversity indices. Studies show that: (1) the number of species significantly increased when planting C. microphylla. Planting C. intermedia degraded desert grassland in arid and semi-arid region has significant ecological restoration effects. (2) there are significant differences in species diversity among different ages of C. intermedia. (3) After planting C. intermedia vegetation species have been gradually replaced by new species,about 42% of the species replaced by other species. 4 It is recommended that in study area in about stubble treatment should be taken when planting 20 years later.
中文关键词	荒漠草原 ; 人工柠条林 ; 物种结构 ; 物种多样性
英文关键词	desert steppe artificial Caragana intermedia forest species structure species diversity
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5168110
来源机构	宁夏大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231226
作者单位	宁夏大学, 西北退化生态系统恢复与重建教育部重点实验室, 银川, 宁夏 750021, 中国
推荐引用方式 GB/T 7714	李淑君,李国旗,王磊,等. 荒漠草原区不同林龄柠条林物种多样性研究[J]. 宁夏大学,2014,28(6):82-87.
APA	李淑君,李国旗,王磊,徐坤,&陈林.(2014).荒漠草原区不同林龄柠条林物种多样性研究.干旱区资源与环境,28(6),82-87.
MLA	李淑君,et al."荒漠草原区不同林龄柠条林物种多样性研究".干旱区资源与环境 28.6(2014):82-87.