干旱区生态环境知识资源中心(Arid): 1961 -2013年气候变化对祁连山草地生产力影响评价

Arid

	1961 -2013年气候变化对祁连山草地生产力影响评价
其他题名	Impact of Climate Change on Grassland Productivity of Qilian Mountains in 1961 - 2013
	罗永忠 1; 郭小芹 2; 刘绪珍 2
来源期刊	山地学报
ISSN	1008-2786
出版年	2017
卷号	35 期号:4 页码:437-443
中文摘要	气候生产潜力反映了植被群落在自然条件下的最高生物学产量,可作为草地生产力评价依据。本文依托1961 - 2013年祁连山区17个气象站数据,利用Thornthwaite Memorial模型以及MK检验、EOF分析方法,对研究区域夏季(5 - 9月)草地生产力进行了评价。结果显示祁连山降水倾向率为1.0552 mm·a~(-1),温度倾向率0.0357 ℃·a~(-1),气候变化呈暖湿型特征,其中降水是影响祁连山草地生产力的主要因素。第一特征量以托勒-野牛沟-肃南为高值区,草地生产力显著优于其他区域,应该作为祁连山草地重要保护区域。在气候驱动上,降水对祁连山草地生产力的影响要远远大于温度,尤其在沿沙区和戈壁荒漠区;而温度的影响显著体现在湿润地带即祁连山高地一带。该研究为祁连山草地保护与发展提出了参考依据。
英文摘要	Climate productive potential reflects the highest biological yield of vegetation community under natural environment,which can be used to evaluate grassland productivity. Based on data of 17 meteorological stations in Qilian Mountains from 1961 to 2013,this paper evaluated the productivity of grassland in summer (May to September) by using Thornthwaite Memorial model,Mann-Kendall mutation test as well as empirical orthogonal function (EOF) analysis method. The results showed that the tendency rate was 1.0552 mm·a~(-1) for precipitation, while 0.0357℃·a~(-1) for temperature. The climate change was warm and humid in Qilian Mountains,and the precipitation was the main impact factor for grassland productivity. With high value of first feature,the grassland productivity of Tuole-Yeniugou-Sunan area was significantly better than that of other regions,which should be regarded as the most important protected areas for the grasslands in Qilian Mountains. Under climate change the impact of precipitation on grassland productivity was much greater than that of temperature,especially in sandy area and the Gobi desert area,whereas the temperature was significantly affected grassland productivity in humid area, i. e. highland. This study provides reference for the protection and development of grasslands in Qilian Mountains.
中文关键词	祁连山 ; 草地生产力 ; 气候变化
英文关键词	Qilian Mountains grassland productivity climate change
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:6066135
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236388
作者单位	1.甘肃农业大学林学院, 兰州, 甘肃 730070, 中国; 2.武威市气象局, 武威, 甘肃 733000, 中国
推荐引用方式 GB/T 7714	罗永忠,郭小芹,刘绪珍. 1961 -2013年气候变化对祁连山草地生产力影响评价[J]. 甘肃农业大学,2017,35(4):437-443.
APA	罗永忠,郭小芹,&刘绪珍.(2017).1961 -2013年气候变化对祁连山草地生产力影响评价.山地学报,35(4),437-443.
MLA	罗永忠,et al."1961 -2013年气候变化对祁连山草地生产力影响评价".山地学报 35.4(2017):437-443.