干旱区生态环境知识资源中心(Arid): 我国沙尘暴发生日数的空间分布格局

Arid

	我国沙尘暴发生日数的空间分布格局
其他题名	Spatial Distribution of Sand-dust Storm Weather in China
	常生华 1; 李广 2; 侯扶江 1
ISSN	1000-694X
出版年	2006
卷号	26 期号:3 页码:384-388
中文摘要	根据全国近30a的沙尘暴记录，运用分形分析得出，在不同的降水量区域，沙尘暴的发生规律明显不同。中国北方沙尘暴发生日数平均为4．4d·a^-1。年降水量≤305mm的地区沙尘暴发生日数最多，平均为9．9d·a^-1这是荒漠和半荒漠地区，主要是我国传统的畜牧区；305mm〈年降水量〈570mm的地区平均为4．0d·a^-1这是草原区，主要是传统的农牧交错带。年降水量≥570mm的地区为0．4d·a^-1，主要是我国的农耕区。305mm〈年降水量〈570mm的区域，沙尘暴发生的频率随降水的变化幅度最大，为4．1，年降水量≤305mm地区，沙尘暴随降水的变化幅度最小，为0．3。分析认为，我国沙尘暴危害的防治需要构建牧区农牧交错带农区生态农业体系。
英文摘要	Based on records of sand-dust storm weather during lately 30 years and by using fractal analysis, we found out that the occurrence of sand-dust storm varied obviously along with rainfall regionalization in China. The annual average days of sand-dust storm are 4.4 days in northern China; 9.9 days in region with rainfall less or equal to 305 mm, where belongs to desert or semi-desert area and also the traditional pastoral area in China; 4.0 days in region with rainfall between 305 mm and 570 mm, where belongs to steppe area and the traditional pasture-agriculture transition zone; 0.4 days in region with rainfall more or equal to 570 mm, where mainly for crop farming zone in China. As for the amplitude of sandstorm frequency changing with rainfall, it is the largest in the area with rainfall between 305 mm and 570 mm, the value is 4. 1 ; the smallest in the area with rainfall less or equal to 305 mm, value is 0.3. It was proposed that the establishment of an ecological agriculture system bestriding pasturing area- interlaced zone- farming area is needed for controlling and preventing the sandstorm disasters of China.
中文关键词	沙尘暴发生日数 ; 分形分析 ; 空间格局 ; 牧区-农牧交错带-农区生态农业体系
英文关键词	sand-dust storm occurring days fractal analysis spatial distribution ecological agriculture system bestriding pasturing area-interlaced zone-farming area
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:2451633
来源机构	兰州大学 ; 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/2XILL650/220447
作者单位	1.兰州大学草地农业科技学院甘肃省草原生态研究所, 农业部草地农业生态系统学重点开放实验室, 兰州, 甘肃 730020, 中国; 2.甘肃农业大学, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	常生华,李广,侯扶江. 我国沙尘暴发生日数的空间分布格局[J]. 兰州大学, 甘肃农业大学,2006,26(3):384-388.
APA	常生华,李广,&侯扶江.(2006).我国沙尘暴发生日数的空间分布格局.,26(3),384-388.
MLA	常生华,et al."我国沙尘暴发生日数的空间分布格局".26.3(2006):384-388.