干旱区生态环境知识资源中心(Arid): 石羊河流域干旱变化特征及对牧草生产的影响

Arid

	石羊河流域干旱变化特征及对牧草生产的影响
其他题名	The characteristics of drought in Shiyang River basin and its influence on herbage production
	潘莹 1; 刘明春 1; 胡正华 1; 陈书涛 2; 盛露 2
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2014
卷号	28 期号:1 页码:109-114
中文摘要	利用1951-2010年的降水和温度,通过降水温度均一化指数变化趋势、干旱站次比和连旱频次,分析了干旱的时间变化特征和空间变化特征,结合牧草产量资料,分析了干旱对牧草生产的影响。结果表明:石羊河流域整体上趋于干旱化,干旱区域有扩大趋势。近30年下游干旱化明显高于中、上游地区。石羊河流域干旱导致牧草减产,降水温度均一化指数每减少一个点,牧草产量每公顷减产149.24kg。不同月份的干旱对牧草产量的影响程度各不相同,4月份的干旱对牧草生长抑制作用最大。
英文摘要	Based on the precipitation and air temperature data of 1951- 2010,the homogenization of precipitation and temperature,the annual proportion of drought station,and continuous drought frequency were analyzed to gain insight into the temporal and spatial variation characteristics of drought in Shiyang River basin. Combined with the herbage production data,the influence of drought on herbage yield was conducted. Results showed that there was a tendency of drought in shiyang River basin,and the arid region tended to get larger. Drought trend and drought in downstream were significantly higher than that in midstream and upstream during 1981- 2010. The drought reduced herbage production,the index of the homogenization of precipitation and temperature reduced a point,herbages production reduced 149. 24kg /hm~2. The negative effects of drought on herbages production were different in different months,the largest negative effect can be found in April.
中文关键词	干旱特征 ; 牧草产量 ; 降水温度均一化指数 ; 石羊河流域
英文关键词	characteristics of drought herbages production homogenization of precipitation and temperature Shiyang River Basin
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:5065619
来源机构	中国气象局兰州干旱气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231194
作者单位	1.中国气象局兰州干旱气象研究所, 中国气象局干旱气候变化与减灾重点开放实验室, 兰州, 甘肃 730020, 中国; 2.南京信息工程大学大气环境中心, 南京, 江苏 210044, 中国
推荐引用方式 GB/T 7714	潘莹,刘明春,胡正华,等. 石羊河流域干旱变化特征及对牧草生产的影响[J]. 中国气象局兰州干旱气象研究所,2014,28(1):109-114.
APA	潘莹,刘明春,胡正华,陈书涛,&盛露.(2014).石羊河流域干旱变化特征及对牧草生产的影响.干旱区资源与环境,28(1),109-114.
MLA	潘莹,et al."石羊河流域干旱变化特征及对牧草生产的影响".干旱区资源与环境 28.1(2014):109-114.