Role of seed bank in establishment of single and mixed-sowing artificial grasslands of Tibetan Plateau

doi:10.3161/15052249PJE2017.65.4.003

NWIPB OpenIR

	Role of seed bank in establishment of single and mixed-sowing artificial grasslands of Tibetan Plateau
	Ma, Zhen 1,3; Zhang, Chunhui 2,3; Zhou, Hua-Kun 1,3; Yao, Bu-Qing 1,3; Zhao, Xin-Quan 1,3
	2017-12-01
发表期刊	POLISH JOURNAL OF ECOLOGY
卷号	65 期号:4 页码:334-344
文章类型	Article
摘要	Artificial grassland establishment is one of the fastest and most effective ways to restore the productivity of degraded grasslands. Little is known about the effect of different types of artificial grassland establishment (i.e., single- and mixed-sowing grassland establishment with perennial grasses) on soil seed bank in degraded grassland ecosystems. Single-sowing population of a high yield species usually has a great standing biomass causing shading that may inhibit germination of seeds in soil seed bank. Thus, we hypothesized that there is higher species richness and seed density in the soil seed bank of single- sowing than mixed-sowing grasslands. Here, we investigated the soil seed bank in four-year old single-sowing and mixed-sowing and control (degraded) grasslands on the Qinghai-Tibetan Plateau. We found that the autumn seed bank of mixed-sowing grasslands had lower species richness and seed density than single-sowing grasslands, while the summer soil seed bank (persistent seed bank) showed little differences. There were differences in biomass among the three grasslands (single-sowing > mixed-sowing > control), but there was no differences in species richness of vegetation. In sum, our results of the autumn seed bank support our hypothesis. Greater above-ground biomass in single-sowing grasslands could generally cause low light availability preventing seeds in soil from germinating and support more seed output, which both may indirectly or directly result in the relatively higher species richness and seed density in the soil seed bank. Our results also suggest that artificial grasslands usually returning to native grasslands in terms of production and species composition after several years is likely due to stability of the persistent soil seed bank.
关键词	Artificial Grassland Mixed-sowing Qinghai-tibetan Plateau Single-sowing Soil Seed Bank Species Richness
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
DOI	10.3161/15052249PJE2017.65.4.003
关键词[WOS]	LIGHT-DEPENDENT ASSOCIATIONS ; ALPINE MEADOW ; PLANT-COMMUNITIES ; YELLOW RIVERS ; SOIL ; VEGETATION ; YANGTZE ; REGION ; PRODUCTIVITY ; HABITATS
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China(31600335 ; Natural Science Foundation of Qinghai Province of China(2015-ZJ-919Q ; China Postdoctoral Science Foundation(2015M582736) ; National key research and development program(2016YFC050190103) ; Open Project of State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University(2017-ZZ-11 ; Qinghai Innovation Platform Construction Project(2017-ZJ-Y20) ; 31702163 ; 2015-ZJ-918Q ; 2017-KF-02) ; 31472135 ; 2016-ZJ910) ; 31672475)
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology
WOS记录号	WOS:000423764500003
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/13315
专题	中国科学院西北高原生物研究所
作者单位	1.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Restorat Ecol Cold Reg Lab Qinghai, Xining 810008, Qinghai, Peoples R China 2.Qinghai Univ, Key Lab State Key Lab Plateau Ecol & Agr, Xining 810008, Qinghai, Peoples R China 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Qinghai, Peoples R China
推荐引用方式 GB/T 7714	Ma, Zhen,Zhang, Chunhui,Zhou, Hua-Kun,et al. Role of seed bank in establishment of single and mixed-sowing artificial grasslands of Tibetan Plateau[J]. POLISH JOURNAL OF ECOLOGY,2017,65(4):334-344.
APA	Ma, Zhen,Zhang, Chunhui,Zhou, Hua-Kun,Yao, Bu-Qing,&Zhao, Xin-Quan.(2017).Role of seed bank in establishment of single and mixed-sowing artificial grasslands of Tibetan Plateau.POLISH JOURNAL OF ECOLOGY,65(4),334-344.
MLA	Ma, Zhen,et al."Role of seed bank in establishment of single and mixed-sowing artificial grasslands of Tibetan Plateau".POLISH JOURNAL OF ECOLOGY 65.4(2017):334-344.