干旱区生态环境知识资源中心(Arid): 气候变化背景下中国农业气候资源变化Ⅲ.西北干旱区农业气候资源时空变化特征

Arid

	气候变化背景下中国农业气候资源变化Ⅲ.西北干旱区农业气候资源时空变化特征
其他题名	Changes of China agricultural climate resources under the background of climate change.Ⅲ. Spatiotemporal change characteristics of agricultural climate resources in Northwest Arid Area
	徐超 1; 杨晓光 1; 李勇 1; 王文峰 2
来源期刊	应用生态学报
ISSN	1001-9332
出版年	2011
卷号	22 期号:3 页码:763-772
中文摘要	基于1961-2007年中国西北干旱区78个气象台站的气象资料,分析了西北干旱区全年,喜凉作物和喜温作物温度生长期内热量,光照和水分的时空变化特征.结果表明:研究期间,西北干旱区年均气温呈上升趋势,其气候倾向率为0.35℃.(10 a)-1;喜凉作物和喜温作物温度生长期内积温总体呈升高趋势,其气候倾向率分别为67和50℃.d.(10 a)-1;研究区大部站点的年日照时数呈明显下降趋势,除新疆大部地区和宁夏平原以东的喜凉作物和喜温作物温度生长期内日照时数呈降低趋势外,其余地区均呈升高趋势;研究区大部地区的全年参考作物蒸散量呈下降趋势,而喜凉作物和喜温作物温度生长期内的参考作物蒸散量则表现为研究区西部下降,东部上升.与1961-1980年相比,1981-2007年研究区大部地区全年及喜凉作物和喜温作物温度生长期内的降水量呈增加趋势,其增幅的空间变化趋势均由西北向东南递减
英文摘要	By using the 1961-2007 daily weather data from 78 meteorological stations in Northwest Arid Area, this paper analyzed the spatiotemporal characteristics of agricultural climate resources,i.e., heat, light, and precipitation,in the area, both in the whole year and in temperature-defined growth seasons of chimonophilous and thermophilic crops. In 1961-2007, the mean annual temperature in the area had an increasing trend, and the climate tendency rate was 0.35 ℃·(10 a)-1.The accumulated temperature in temperature-defined growth seasons of both chimonophilous and thermophilic crops also had an increasing trend, and the climate tendency rate was 67 and 50 ℃·d·(10 a)-1, respectively. The annual sunshine hours in most stations of the research area had an obvious decreasing trend, but the sunshine hours during the temperature-defined growth seasons of chimonophilous and thermophilic crops had an increasing trend, except that in most regions of Xinjiang and east Ningxia Plain. The annual reference evapotranspiration in most regions of the study area tended to decrease, while the reference evapotranspiration during temperature-defined growth seasons of chimonophilous and thermophilic crops tended to decrease in the west but increase in the east. Compared with that in 1961-1980, the precipitation both in the whole year and in temperature-defined growth seasons of chimonophilous and thermophilic crops in 1981-2007 increased, and the increment reduced progressively from the northwest to the southeast
中文关键词	西北干旱区 ; 农业气候资源 ; 时空特征
英文关键词	Northwest Arid Area agricultural climate resources spatiotemporal characteristics
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:4175271
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227334
作者单位	1.中国农业大学资源与环境学院, 北京 100193, 中国; 2.中国农业大学资源与环境学院, 国家气象中心, 北京 100193, 中国
推荐引用方式 GB/T 7714	徐超,杨晓光,李勇,等. 气候变化背景下中国农业气候资源变化Ⅲ.西北干旱区农业气候资源时空变化特征[J]. 中国农业大学,2011,22(3):763-772.
APA	徐超,杨晓光,李勇,&王文峰.(2011).气候变化背景下中国农业气候资源变化Ⅲ.西北干旱区农业气候资源时空变化特征.应用生态学报,22(3),763-772.
MLA	徐超,et al."气候变化背景下中国农业气候资源变化Ⅲ.西北干旱区农业气候资源时空变化特征".应用生态学报 22.3(2011):763-772.