干旱区生态环境知识资源中心(Arid): 宁夏中部干旱带草地气候-土壤生产潜力分析

Arid

	宁夏中部干旱带草地气候-土壤生产潜力分析
其他题名	Analysis of Grassland Climate-soil Potential Productivity in the Middle Arid Region of Ningxia
	余海龙 1; 马凯博 1; 康扬眉 1; 杜雅仙 1; 黄菊莹 2
来源期刊	草地学报
ISSN	1007-0435
出版年	2018
卷号	26 期号:3 页码:625-630
中文摘要	利用宁夏中部干旱带海原、盐池、同心三个县1961年-2008年48年的气象资料,采用Miami模型和Thornthwaite Memorial模型计算了研究区草地气候生产潜力,用土壤修正系数对气候生产潜力做修正,研究了该区域气候-土壤生产潜力的时空演变特征,旨在探索影响宁夏中部干旱带草地生产力的主要限制因素,为当地的草地生产提供参考。结果表明:研究区气候呈暖干型发展趋势,温度呈显著增加趋势而降水呈波动中递减趋势;研究区气候生产力呈波动中递减趋势。与温度相比,降水是影响研究区气候生产潜力的制约因子;由于土壤肥力存在空间分异,研究区草地气候-土壤生产潜力的大小排序依次为海原县3 025kg·hm~(-2)·a~(-1)>盐池县2 993 kg·hm~(-2)·a~(-1)>同心县2 051kg·hm~(-2)·a~(-1)。
英文摘要	Based on the meteorological data from 1961to 2008of the middle arid region of Ningxia including Haiyuan county,Yanchi county and Tongxin county,the paper calculated the climate potential productivity of the grasslands in the research area using Miami Model and Thornthwaite Memorial Model.Then the study amended it with soil correction coefficient and further investigated the spatial and temporal variability characteristics of climate-soil potential productivity,so as to explore the limiting factors of grassland productivity and to provide references for local grassland production.The results were as following.Firstly, the climate in the area selected was the warm-dry-type.The average temperature clearly tended to increase, but precipitation tended to decrease with some fluctuation.Secondly,following the climate change trend the climate potential productivity decreased with fluctuation.Compared with temperature,precipitation was the limiting factor that restricted the climate potential productivity.Thirdly,according to the spatial heterogeneity of soil fertility,the grassland climate-soil potential productivity in the three counties was in the following order:Haiyuan county (3 025 kg·hm~(-2)·a~(-1))> Yanchi county (2 993 kg·hm~(-2)·a~(-1))> Tongxin county(2 051kg·hm~(-2)·a~(-1)).
中文关键词	气候变化 ; 草地 ; 气候-土壤生产潜力 ; 宁夏中部干旱带
英文关键词	Climate change Grassland Climate-soil potential productivity The Middle Arid Region of Ningxia
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENGINEERING BIOMEDICAL
WOS研究方向	Biotechnology & Applied Microbiology
CSCD记录号	CSCD:6319887
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/2XILL650/237303
作者单位	1.宁夏大学资源环境学院, 银川, 宁夏 750021, 中国; 2.宁夏大学环境工程研究院, 银川, 宁夏 750021, 中国
推荐引用方式 GB/T 7714	余海龙,马凯博,康扬眉,等. 宁夏中部干旱带草地气候-土壤生产潜力分析[J]. 宁夏大学,2018,26(3):625-630.
APA	余海龙,马凯博,康扬眉,杜雅仙,&黄菊莹.(2018).宁夏中部干旱带草地气候-土壤生产潜力分析.草地学报,26(3),625-630.
MLA	余海龙,et al."宁夏中部干旱带草地气候-土壤生产潜力分析".草地学报 26.3(2018):625-630.