干旱区生态环境知识资源中心(Arid): 盐生草甸群落的植物多样性与土壤质地、盐分关系的研究

Arid

	盐生草甸群落的植物多样性与土壤质地、盐分关系的研究
其他题名	Study on the Relationship between Plant Diversity and Soil Texture and Salinity of Saline Meadow Community
	冯艳琼; 何彤慧; 陈向全; 崔乔; 何玉实
来源期刊	草地学报
ISSN	1007-0435
出版年	2020
卷号	28 期号:6 页码:1682-1689
中文摘要	为揭示盐生草甸植物群落类型与土壤基质和盐分的关系,本研究选取鄂尔多斯高原盐生草甸群落及土壤为研究对象,按照《中国植被》分类法,将研究区划为盐沼裸地(Ⅰ)、肉质耐盐植物草甸(Ⅱ)、苔草草甸(Ⅲ)、禾草草甸(Ⅳ)和杂类草草甸(Ⅴ),分析它们的植物多样性指数、土壤质地和盐分特征以及它们之间的关系。结果显示:研究区植物多样性指数整体较低,不同盐碱程度下4类草甸存在显著差异(P<0.05)。研究区的土壤机械组成以粘粒和细砂粒为主;Ⅱ土质相对较细腻;Ⅲ土质较粗,可能存在更强的沙漠化隐患;4类草甸土壤的表层较细,植被对风沙有截留作用。研究区均属于盐碱土,Ⅰ土壤盐碱度极高,无植物生存; Ⅱ土壤属于偏盐土;Ⅲ,Ⅳ和Ⅴ属于偏碱土。土壤盐分是植物群落变化的主要影响因子(P<0.01),土壤pH与全盐含量显著负相关(P<0.05),具有间接影响;土壤各颗粒物之间相互影响,但与盐碱度无显著相关性。
英文摘要	To reveal the relationship between saline-meadow plant communities and,soil matrix and salinity,we selected saline meadow communities and soil of the Ordos Plateau as research objects.According to the classification of"Chinese Vegetation",we divided the studyarea into salt marsh bare land(Ⅰ),succulent and salt-tolerant plant meadow(Ⅱ),carex meadow(Ⅲ),grass meadow (Ⅳ)and weed meadow (Ⅴ)analyzed plant diversity index,soil texture and salinity characteristics and their relationships.The results showed that the overall plant diversity index in the study area was low,and there were significant differences among the fourtypes of meadows under different salinity levels(P<0.05).The mechanical composition of the soil in the study area was mainly clay and fine sand; soil ofⅡwas relatively fine;soil ofⅢwas thicker,which may have stronger hidden dangers of desertification.The surface layer of the four types of meadow soil was finer,and the vegetation can intercept wind and sand.The study areas were all saline-alkaline soil,Ⅰsoil had extremely high salinity and had no plants survived;Ⅱsoil was partially saline soil;Ⅲ,ⅣandⅤbelonged to partial alkaline soil.Soil salinity was the main influencing factor of plant community changes(P<0.01),soil pH was significantly negatively correlated with total salt content(P<0.05),and had an indirect influence.Soil particles affected each other,but had no significant correlation with salinity.
中文关键词	盐生草甸 ; 植物多样性 ; 土壤质地 ; 盐分特征 ; 土层剖面
英文关键词	Halophyte Plant diversity Soil texture Salinity characteristics Soil profile
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6882741
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/2XILL650/353338
作者单位	冯艳琼, 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. 何彤慧, 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. 陈向全, 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. 崔乔, 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. 何玉实, 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	冯艳琼,何彤慧,陈向全,等. 盐生草甸群落的植物多样性与土壤质地、盐分关系的研究[J]. 宁夏大学,2020,28(6):1682-1689.
APA	冯艳琼,何彤慧,陈向全,崔乔,&何玉实.(2020).盐生草甸群落的植物多样性与土壤质地、盐分关系的研究.草地学报,28(6),1682-1689.
MLA	冯艳琼,et al."盐生草甸群落的植物多样性与土壤质地、盐分关系的研究".草地学报 28.6(2020):1682-1689.