干旱区生态环境知识资源中心(Arid): 金塔沙漠不同人工植被类型土壤种子库特征

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	金塔沙漠不同人工植被类型土壤种子库特征
其他题名	Characteristics of Soil Seed Bank of Artificial Vegetation Types in Jinta Desert
	滕玉风; 占玉芳; 马力; 鲁延芳; 钱万建; 田晓萍
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2020
卷号	40 期号:3 页码:163-169
中文摘要	[目的]对甘肃省酒泉市金塔沙漠不同类型人工植被林地的土壤种子库进行调查研究,以揭示干旱条件下沙漠人工植被土壤种子库的分布规律、种子库物种多样性的变化特征以及土壤种子库与地上植被的关系,为河西走廊退化人工林生态系统的恢复与重建提供理论依据。[方法]通过野外植被调查、土壤种子库取样和土样萌发试验进行分析研究。[结果]①土壤种子库中,共统计到植物种有24种,胡杨假苇拂子茅群落、胡杨+沙枣柽柳+花棒+柠条芦苇+黑沙蒿群落、梭梭河西菊群落、柽柳花花柴群落土壤种子库物种数依次为18种、18种、14种、3种,土壤种子密度依次为660.71,267.85,29.64,19.29粒/m~2。土壤种子库中一年生、多年生草本的物种和密度占优势,乔木、灌木和半灌木种子所占比例较低。 ②物种多样性分析表明,乔木林土壤种子库物种的Margalef丰富度指数大于灌木林,土壤种子库物种的Shannon-Wiener多样性指数、Simpson多样性指数、Pielou均匀度指数变化趋势基本一致,均为胡杨+沙枣柽柳+花棒+柠条芦苇+黑沙蒿群落>柽柳花花柴群落>梭梭河西菊群落>胡杨假苇拂子茅群落,而生态优势度指数与之相反。③乔木林土壤种子库植物与地上植被的相似程度高于灌木林。 [结论]沙漠人工植被林地土壤种子库物种丰富度低,以草本植物为主,沙漠自我恢复度低,人工营造乔木林、灌木林有利于干旱荒漠区生态恢复与重建。
英文摘要	[Objective]Soil seed banks of different types of artificial forest land were studied in the Jinta desert of Jiuquan City,Gansu Province,to reveal the artificial vegetation distribution rule of soil seed banks, variety characteristics of species diversity,and relationship between the soil seed bank and the vegetation. The goal was to provide a theoretical basis for the restoration and reconstruction of the degraded plantation ecosystem in the Hexi corridor.[Methods]The analytical research was conducted through field vegetation survey,soil seed bank sampling,and soil germination experiment.[Results]① There were 24kinds of plants species.The numbers of soil seed banks of the Populus euphratica-Calamagrostis pseudophragmites community,the P.euphratica+Elaeagnus angustifolia-Tamarix chinensis+ Hedysarum scoparium+ Caragana korshinskii-Phragmites australis+ Artemisia ordosica community,the Haloxylon ammodendron- Hexinia polydichotoma community,and the Tamarix chinensis-Karelinia caspia community were 18,18, 14,and 3species,respectively.The seed densities were 660.71,267.85,29.64,and 19.29granules/m~2, respectively.The species and density of annual and perennial herbs were dominant,and the proportion of arbor,shrubs,and subshrubs was low.② The analysis of species diversity showed that the Margalef richness index of soil seed banks of arboreal forest was larger than that of the shrubs.The variety trends of the Shannon-Wiener diversity index,Simpson diversity index,and Pielou evenness index of soil seed banks were almost the same as P.euphratica+E.angustifolia-T.chinensis+ H.scoparium+C.korshinskii-P. australis+A.ordosicacommunity>T.chinensis-K.caspiacommunity>H.ammodendron-H.polydichotoma community>P.euphratica-C.pseudophragmites community.However,the ecological dominance index was in contrast.③ The similarity in the arbor soil seed banks of arboreal forest and ground vegetation was higher than that of the shrubs.[Conclusion]The species abundance of the soil seed bank was low in artificial forest lands.Majority of them were herbs,the desert had a low restoration capacity,and the artificial arbor forests and shrubs were beneficial for the restoration and reconstruction of the arid desert area.
中文关键词	金塔沙漠 ; 土壤种子库 ; 人工植被
英文关键词	Jinta desert soil seed bank artificial vegetation
类型	Article
语种	中文
收录类别	CSCD
WOS研究方向	Forestry
CSCD记录号	CSCD:6768613
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336715
作者单位	滕玉风, 张掖市林业科学研究院, 张掖, 甘肃 734000, 中国.; 占玉芳, 张掖市林业科学研究院, 张掖, 甘肃 734000, 中国.; 马力, 张掖市林业科学研究院, 张掖, 甘肃 734000, 中国.; 鲁延芳, 张掖市林业科学研究院, 张掖, 甘肃 734000, 中国.; 钱万建, 张掖市林业科学研究院, 张掖, 甘肃 734000, 中国.; 田晓萍, 张掖市林业科学研究院, 张掖, 甘肃 734000, 中国.
推荐引用方式 GB/T 7714	滕玉风,占玉芳,马力,等. 金塔沙漠不同人工植被类型土壤种子库特征[J],2020,40(3):163-169.
APA	滕玉风,占玉芳,马力,鲁延芳,钱万建,&田晓萍.(2020).金塔沙漠不同人工植被类型土壤种子库特征.水土保持通报,40(3),163-169.
MLA	滕玉风,et al."金塔沙漠不同人工植被类型土壤种子库特征".水土保持通报 40.3(2020):163-169.