干旱区生态环境知识资源中心(Arid): Effect of the population density on belowground bud bank of a rhizomatous clonal plant Leymus secalinus in Mu Us sandy land

Arid

DOI	10.1007/s10265-018-01080-9
	Effect of the population density on belowground bud bank of a rhizomatous clonal plant Leymus secalinus in Mu Us sandy land
	Zhang, Dong-mei 1,2; Zhao, Wen-zhi1 ; Luo, Wei-cheng 1
通讯作者	Zhao, Wen-zhi
来源期刊	JOURNAL OF PLANT RESEARCH
ISSN	0918-9440
EISSN	1618-0860
出版年	2019
卷号	132 期号:1 页码:69-80
英文摘要	Clonal propagation is the main strategy for clonal plants to adapt to wind-sand habitat, and underground bud bank could reflect the potential ability of clonal propagation. However, the effects of population density on belowground bud bank are unknown, hindering efforts in the process of dune stabilization. We investigated the horizontal density and vertical distribution of belowground bud bank of a typical rhizomatous grass Leymus secalinus, and soil water content in four dune types with different population density (dune type I: 11.2 +/- 1.7 no. m(-2), type II: 24.2 +/- 2.6 no. m(-2), type III: 40.0 +/- 4.0 no. m(-2), and type IV: 53.5 +/- 7.2 no. m(-2)) in Mu Us sandy land. Our results showed that (1) total bud density of population increased markedly with increasing population density, but it did not exhibit significant difference between dune types III and IV, where density was about 130budsm(-2); and tiller bud density of population first increased, then decreased, and reached a maximum in dune type III. (2) Total bud density per individual in dune type III was significantly larger than that in other dune types (P<0.05), whereas rhizome and tiller bud density per individual did not show significant differences in dune types II, III and IV (P>0.05). (3) Buds tended to be concentrated at 10-30cm soil layer in all dune types, and be buried deeper in dune types III and IV thanthat in dune types I and II. (4) No pronounced relationship was shown between bud density and soil water content in 10-30cm soil layer with increasing population density. Our results suggest that moderate population density (40.0 +/- 4.0no.m(-2)) significantly increase the bud bank density of L. secalinus population and individual. Soil water content was not the main factor responsible for the density of L. secalinus bud bank. These results can provide important information for implementation of effective sand fixation measures and species selection for desertification control in semiarid sandy land ecosystems.
英文关键词	Belowground bud bank Leymus secalinus Population density Vegetation regeneration Vertical distribution
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000457545300007
WOS关键词	PSAMMOCHLOA-VILLOSA ; SOIL PROPERTIES ; LIFE-HISTORY ; WIND EROSION ; VEGETATIVE REGENERATION ; MERISTEM LIMITATION ; SEEDLING EMERGENCE ; SPATIAL-PATTERN ; DUNE ; BURIAL
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217297
作者单位	1.Chinese Acad Sci, Linze Inland River Basin Res Stn, Chinese Ecosyst Res Network, Key Lab Ecohydrol Inland River Basin,Northwest In, 320 Donggang West Rd, Lanzhou 730000, Gansu, Peoples R China; 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Dong-mei,Zhao, Wen-zhi,Luo, Wei-cheng. Effect of the population density on belowground bud bank of a rhizomatous clonal plant Leymus secalinus in Mu Us sandy land[J],2019,132(1):69-80.
APA	Zhang, Dong-mei,Zhao, Wen-zhi,&Luo, Wei-cheng.(2019).Effect of the population density on belowground bud bank of a rhizomatous clonal plant Leymus secalinus in Mu Us sandy land.JOURNAL OF PLANT RESEARCH,132(1),69-80.
MLA	Zhang, Dong-mei,et al."Effect of the population density on belowground bud bank of a rhizomatous clonal plant Leymus secalinus in Mu Us sandy land".JOURNAL OF PLANT RESEARCH 132.1(2019):69-80.