干旱区生态环境知识资源中心(Arid): 中国西北部干旱区NPP驱动力分析以新疆伊犁河谷和天山山脉部分区域为例

Arid

	中国西北部干旱区NPP驱动力分析以新疆伊犁河谷和天山山脉部分区域为例
其他题名	Analysis of NPP driving force in an arid region of Northwest China: A case study in Yili Valley and parts of Tianshan Mountains,Xinjiang,China
	姬盼盼 1; 高敏华 1; 杨晓东 2
来源期刊	生态学报
ISSN	1000-0933
出版年	2019
卷号	39 期号:8 页码:2995-3006
中文摘要	NPP作为全球生态系统稳定与生态安全评估的重要参数之一,它的分布变化能间接反映区域生态平衡和自然环境演变。以新疆伊犁河谷和天山山脉部分区域为研究区,为探寻该区域NPP驱动因子及其驱动特点,对NPP、气候气象、土壤、植物和海拔数据做再处理与数理统计分析,研究发现:(1)该中纬度干旱区NPP的主导因素为水分与海拔。(2)相关性分析得出,年平均气温、年平均降水量、干燥度、湿润指数、高程和坡度与NPP有显著相关性(P<0.01)。(3)不同环境温度下,各环境因子对NPP的驱动能力有差异,年均气温在0 ℃以下区域NPP最强驱动因子为海拔(P<0.01),而高于0℃区域则为水分因子(P< 0.01)。(4)不同植被类型与土壤类型间NPP主要驱动因子及贡献率存在较大差异。(5)NPP极值随海拔的升高先增大后减小,海拔高度对NPP环境因子驱动能力起决定性作用。揭示了海拔因素对我国中纬度干旱区NPP的重要影响,揭示了各环境条件下气候与地形因子对NPP的影响特点,为干旱区NPP驱动力研究提供相关理论依据。
英文摘要	Net primary productivity (NPP) is one of the important parameters for assessing global ecosystem stability and ecological safety, and changes to NPP distribution directly affect regional ecological function and natural environment evolution. Our study area forms part of the Yili River Valley and Tianshan Mountains in Xinjiang, China. Through analysis of mathematical statistics datasets composed of NPP,climate and meteorology,soil,and plant and elevation we found that : (1) the dominant factors for NPP in arid areas of middle latitude were moisture and elevation; (2) correlation analysis indicated that the annual average temperature, annual average precipitation, aridity, humidity index, elevation, and slope showed significant correlation with NPP (P<0.01) and, additionally, there were some correlations among the environmental factors; (3) under different environmental temperatures,the effect of the driving ability of the environmental factors on NPP was different: when the average annual temperature was below 0 ℃, NPP was driven by elevation (P<0.01); when it was above 0 ℃, NPP was driven by moisture factors (P<0.01); (4) there were significant differences in NPP driving factors between different vegetation and soil types; (5) the NPP value first increased, and then decreased with rising altitude, and altitude had a decisive effect on the driving characteristics of NPP environmental factors. Based on the above conclusions,we revealed the important influence of altitude and the effects of environmental factors on NPP in arid areas of mid-latitudes. Furthermore,the effects of the driving force of altitude on NPP needs further exploration.
中文关键词	干旱区 ; 净初级生产力(NPP) ; 海拔 ; 因子贡献率 ; 驱动力
英文关键词	arid area Net primary productivity(NPP) altitude factor contribution rate driving force
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:6489234
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239434
作者单位	1.新疆大学资源与环境科学学院;;绿洲生态教育部重点实验室, ;;绿洲生态教育部重点实验室, 乌鲁木齐;;乌鲁木齐, ;; 830046;;830046; 2.新疆大学资源与环境科学学院;;绿洲生态教育部重点实验室;;新疆自治区智慧城市与环境建模重点实验室, ;;绿洲生态教育部重点实验室;;新疆自治区智慧城市与环境建模重点实验室, 乌鲁木齐;;乌鲁木齐;;乌鲁木齐, ;;;; 830046;;830046;;830046
推荐引用方式 GB/T 7714	姬盼盼,高敏华,杨晓东. 中国西北部干旱区NPP驱动力分析以新疆伊犁河谷和天山山脉部分区域为例[J]. 新疆大学,2019,39(8):2995-3006.
APA	姬盼盼,高敏华,&杨晓东.(2019).中国西北部干旱区NPP驱动力分析以新疆伊犁河谷和天山山脉部分区域为例.生态学报,39(8),2995-3006.
MLA	姬盼盼,et al."中国西北部干旱区NPP驱动力分析以新疆伊犁河谷和天山山脉部分区域为例".生态学报 39.8(2019):2995-3006.