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	新疆不同草地类型植物物种特征与水热因子的关系研究
其他题名	Relationship between plant species characteristics and climate factors in different grassland types of Xinjiang
	刘利利; 盛建东; 程军回; 刘耘华; 李瑞霞; 赵丹
来源期刊	草业学报
ISSN	1004-5759
出版年	2016
卷号	25 期号:5 页码:1-12
中文摘要	本文以新疆7种草地为研究对象,调查364个样地的物种名录,分析不同草地植物科属种的变化特征,探讨了植物物种丰富度(SR)对年平均温度(MAT)、降水(MAP)、海拔的响应。研究结果表明,新疆草地以禾本科、菊科为优势科,优势属为针茅属、绢蒿属;物种丰富度变化为:温性草甸草原(7.73)>温性草原(5.04)>高寒草原(4.36)>温性荒漠草原(3.99)>温性草原化荒漠(3.02)>温性荒漠(2.08)>低平地草甸(1.43);全部样地和温性草原的SR与MAP呈正相关,与MAT、海拔呈峰型关系;低平地草甸和高寒草原的SR与MAP呈正相关而与MAT呈负相关,与海拔呈先降低再增加的趋势;温性荒漠草原的SR与MAP呈正相关,与MAT、海拔无相关性;温性荒漠的SR与MAP呈正相关,与MAT呈负相关,与海拔呈峰型关系;温性草甸草原和温性草原化荒漠的SR与MAT、MAP均无相关性。不同草地类型对温度、降水响应的差异,是由于植被类型和温度、降水的空间分异性,对于海拔的分异,来源于海拔梯度范围和所研究地区大尺度的气候特征。
英文摘要	For 364 field sites representing seven grassland types in Xinjiang, species lists were compiled, and the distribution of plant families, genera and species across the different grassland types cataloged. In addition, we examined the species richness (SR) response to mean annual precipitation (MAP), mean annual temperature (MAT) and altitude. The Poaceae and Ateraceae were the dominant families, and Stipa, and Seriphidium were among the dominant genera at all sites. The grassland types ranked for SR (from high to low): temperate meadow steppe (7.73), temperate steppe (5.04), alpine steppe (4.36), temperate desert steppe (3.99), temperate steppe desert (3.02), temperate desert (2.08), low plain meadow (1.43). Patterns of SR response to MAP, MAT and altitude were also detected. In Xinjiang grassland temperate steppe, SR was positively and linearly related to MAP, but unimodally related to MAT and altitude. In alpine steppe and low plain meadow, SR was positively and linearly related with MAP and negatively related with MAT, but SR decreased from low to mid altitude and then increased with increasing altitude. In temperate desert steppe, SR was significantly positively related to MAP, but was not significantly related to MAT and altitude. In alpine steppe and low plain meadow, the SR was positively and linearly related to MAP and negatively related to MAT, but unimodally related to altitude. No significant relationship was found between SR and MAT, MAP, or altitude in temperate meadow steppe and temperate steppe desert grasslands. The above results in the different grassland types might be explained by response characteristics of particular species, spatial variation of temperature and precipitation, and the altitude range, steepness of slope and large scale climate characteristics of the study area.
中文关键词	海拔 ; 草地 ; 年平均降水 ; 年平均温度 ; 物种丰富度
英文关键词	altitude grassland mean annual precipitation mean annual temperature species richness
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5703030
来源机构	新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234009
作者单位	新疆农业大学草业与环境科学学院, 新疆土壤与植物生态过程重点实验室, 乌鲁木齐, 新疆 830052, 中国
推荐引用方式 GB/T 7714	刘利利,盛建东,程军回,等. 新疆不同草地类型植物物种特征与水热因子的关系研究[J]. 新疆农业大学,2016,25(5):1-12.
APA	刘利利,盛建东,程军回,刘耘华,李瑞霞,&赵丹.(2016).新疆不同草地类型植物物种特征与水热因子的关系研究.草业学报,25(5),1-12.
MLA	刘利利,et al."新疆不同草地类型植物物种特征与水热因子的关系研究".草业学报 25.5(2016):1-12.