干旱区生态环境知识资源中心(Arid): 中间锦鸡儿冠层降雨再分配特征

Arid

	中间锦鸡儿冠层降雨再分配特征
其他题名	Redistribution of Rainfall in Canopy of Caragana intermedia
	田娜; 古君龙; 杨新国; 王磊; 王兴; 陈林; 宋乃平
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2019
卷号	36 期号:4 页码:854-862
中文摘要	以荒漠草原人工中间锦鸡儿(Caragana intermedia)灌丛为对象,研究降雨量及降雨强度对两类形态灌丛(健康组和退化组)穿透雨、树干茎流和冠层截留的影响。结果表明:①试验期间共观测到有效降雨33次,以中小降雨事件为主,总降雨量为251 mm,次平均降雨量和平均降雨强度分别为7.6 mm和1.14 mm·h~(-1),其中降雨量<2 mm,降雨强度<1 mm·h~(-1)的降雨事件出现次数最多。②健康组和退化组中间锦鸡儿平均穿透雨率、树干茎流率和冠层截留率分别为66.7%、8.5%、24.8%和75.4%、8.7%、16.0%,两类形态灌丛之间穿透雨和截留存在显著差异(P <0.05)。③两类形态灌丛的穿透雨量、树干茎流量、截留量与降雨量成线性函数、对数函数和幂函数关系,且其穿透雨率、树干茎流率和截留率与降雨量、降雨强度之间成对数函数和幂函数关系。灌丛形态退化显著改变了冠层降雨再分配格局,冠层截留显著降低,穿透雨显著增加,潜在提高了降水对土壤水分的直接补充,一定程度上有利于人工中间锦鸡儿稳定性的维持。
英文摘要	In this study,the effects of rainfall and its intensity on the throughfall,stemflow and interception of two kinds of shrubberies (healthy and degenerated groups) of Caragana intermedia planted in a desert steppe were examined.Results showed that:① 33 effective rainfall events were observed during the experiment,and the total volume,average volume and average intensity of rainfall were 251 mm,7.6 mm and 1.14 mm·h~(-1),respectively.In which the frequency of rainfall events with volume 2 mm and intensity 1 mm·h~(-1) was the highest.② There were the significant differences (P <0.05) in the throughfall and interception between the healthy and degenerated groups,and the average percentages of throughfall,stemflow and interception were 66.7%,8.5% and 24.8% in the healthy group and 75.4%,8.7% and 16.0% in the degenerated group,respectively.③ The throughfall,stemflow and interception of the two kinds of shrubberies had the linear,logarithmic and power functions with rainfall,and the percentages of throughfall,stemflow and interception had the logarithmic and power relationships with rainfall and rainfall intensity.The morphological degeneration of the shrubberies changed significantly the redistribution pattern of rainfall in canopy,thus the canopy interception was significantly reduced,but the throughfall was significantly increased,which were beneficial to potentially improve soil moisture content and maintain the stability of C.intermedia shrubberies.
中文关键词	荒漠草原 ; 中间锦鸡儿 ; 穿透雨 ; 树干茎流 ; 截留 ; 形态退化 ; 毛乌素沙地
英文关键词	desert steppe Caragana intermedia throughfall stemflow interception morphological degeneration Mu Us Desert
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:6537123
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/2XILL650/239171
作者单位	宁夏大学;;宁夏大学, 西北退化生态系统恢复与重建教育部重点实验室;;西北土地退化与生态恢复宁夏省部共建国家重点实验室培育基地, 银川;;银川, 宁夏;;宁夏 750021;;750021, 中国
推荐引用方式 GB/T 7714	田娜,古君龙,杨新国,等. 中间锦鸡儿冠层降雨再分配特征[J]. 宁夏大学,2019,36(4):854-862.
APA	田娜.,古君龙.,杨新国.,王磊.,王兴.,...&宋乃平.(2019).中间锦鸡儿冠层降雨再分配特征.干旱区研究,36(4),854-862.
MLA	田娜,et al."中间锦鸡儿冠层降雨再分配特征".干旱区研究 36.4(2019):854-862.