干旱区生态环境知识资源中心(Arid): 石羊河流域NPP对气候变化的响应

Arid

	石羊河流域NPP对气候变化的响应
其他题名	Responses of net primary productivity of natural vegetation to climate change in the Shiyang River basin
	张雪蕾 1; 王义成 1; 肖伟华 1; 杨瑞祥 2; 王燕 1; 朱丽姗 1
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2018
卷号	37 期号:10 页码:3110-3118
中文摘要	以石羊河流域上游山区和中下游绿洲区为研究区,采用Thornthwaite Memorial模型对研究区的NPP进行估算,通过Sen斜率的方法对NPP变化的时空特征进行分析,基于敏感性分析对NPP的主要气候影响因子对NPP的贡献程度进行了估算;通过设定不同的气候情景,分析各气候情景下NPP的响应特征,在此基础上对未来NPP的变化进行了预测。结果表明: 1981-2015年,研究区气候趋向暖湿化,NPP在暖湿化的趋势下表现为增加; NPP自上游至下游呈增加趋势,增减趋势空间分异不显著,变化幅度空间异质性较强; NPP主要受降水、相对湿度及净辐射的影响; 暖湿型气候条件对植被生长和干物质的积累最有利,冷干型气候最不利于植被干物质的积累,相对于气温而言,降水的影响程度更大,降水决定NPP的增减,气温影响NPP的变化幅度;石羊河流域NPP未来的变化以增加为主,到2050年NPP将增加5.71%~7.83%。
英文摘要	Net primary productivity (NPP) of the mountainous area in upper reaches and oasis areas in middle and lower reaches of Shiyang River basin was estimated using the Thornthwaite Memorial model. The spatial and temporal dynamics of NPP were analyzed by Sen’s slope method. Based on the sensitivity analysis,the contributions of main climate factors to NPP were estimated. The response of NPP to climate change was analyzed by setting four different climate scenarios. Subsequently,the changes of NPP in future were predicted. The results showed that climate had a tendency to be warm and wet from 1981 to 2015,with increasing NPP in the study area. The spatial heterogeneity of change trend of NPP was not significant,but the spatial heterogeneity of change magnitude was strong,with NPP increasing from the upper reaches to the lower reaches. NPP was mainly affected by precipitation,relative humidity,and net radiation. The warm and wetclimate was beneficial to the vegetation growth,while thecold and dryclimate was unfavorable to the vegetation growth. The changes in NPP depend on precipitation,with temperature affecting the amplitude of such changes. The NPP in Shiyang River basin is predicted to increase by 5.71%-7.83% in 2050.
中文关键词	植被净初级生产力 ; 气候变化 ; 敏感性分析 ; 情景分析 ; 石羊河流域
英文关键词	NPP climate change sensitivity analysis scenario analysis Shiyang River basin
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6345172
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238204
作者单位	1.中国水利水电科学研究院, 流域水循环模拟与调控国家重点实验室, 北京 100038, 中国; 2.四川大学水利水电学院, 成都, 四川 610065, 中国
推荐引用方式 GB/T 7714	张雪蕾,王义成,肖伟华,等. 石羊河流域NPP对气候变化的响应[J],2018,37(10):3110-3118.
APA	张雪蕾,王义成,肖伟华,杨瑞祥,王燕,&朱丽姗.(2018).石羊河流域NPP对气候变化的响应.生态学杂志,37(10),3110-3118.
MLA	张雪蕾,et al."石羊河流域NPP对气候变化的响应".生态学杂志 37.10(2018):3110-3118.