干旱区生态环境知识资源中心(Arid): 张掖市农耕期热量资源变化特征及对农业生产的影响

Arid

	张掖市农耕期热量资源变化特征及对农业生产的影响
其他题名	Evolutional characteristics of heat resources during farming period and its effect on agricultural production in Zhangye Prefecture
	殷雪莲 1; 王涓力 2
来源期刊	冰川冻土
ISSN	1000-0240
出版年	2015
卷号	37 期号:5 页码:1406-1411
中文摘要	利用张掖市6个气象观测站1961 - 2010年实测气温资料,运用5 d滑动平均、气候倾向率、 Mann-Kendall检验等方法,对农耕期初日、终日、持续日数及≥0 ℃积温的分布特征、年际和年代际演变规律及突变特点进行分析,结果表明:张掖市农耕期初日随海拔高度的升高推迟,终日则相反,农耕期日数自西北部向东南缩短,积温南北差异显著;近50 a初日提早,终日推迟,持续日数延长,积温增加趋势明显; 20世纪70 - 80年代前期各地表现出农耕期初日推迟,终日提前,持续日数较短,≥0 ℃积温偏少的特点; 20世纪90年代以来,终日延迟程度大于初日提前程度,积温增加显著,尤其2001 - 2010年增幅为50 a最大;山前绿洲及荒漠绿洲农耕期终日、持续日数及积温分别在1995 /1997年、 1982 /1990年、1996 /1999年发生了突变;农耕期热量资源增加,对作物种植结构的调整、生育进程的加快及产量均产生一定影响.
英文摘要	Based on the daily air temperature data from six counties of Zhangye Prefecture during l961 - 2010, the annual and decadal variations and their abrupt characteristics of beginning and the ending dates of farming period,farming days,as well as cumulated temperature higher than 0 ℃ in Zhangye Prefecture were analyzed by using the methods of five-day sliding average,climatic tendency rate,Mann-Kendall test and mutation test. The results show that,spatially,during the 50 years,the beginning date of farming period delayed with the increase of latitude in the central Hexi Corridor,but the ending date presented reverse tendency. The farming days decreased from southeast to northwest,and the cumulated temperature higher than 0 ℃ was outstandingly different in the south and the north of Zhangye Prefecture. Temporally,the beginning date of farming period was in advance and the ending date prolonged obviously,as well as the farming days extended,cumulated temperature higher than 0 ℃ increased from 1961 to 2010 in Zhangye Prefecture. From the1970s to the early 1980s,the beginning date of farming period postponed and the ending date was in advance,the cumulated temperature higher than 0 ℃ and farming days decreased in the most weather stations in the central Hexi Corridor. In the 1990s,it could be found that the ending date extended obviously,so farming days also extended,the cumulated temperature higher than 0 ℃ increased evidently. Especially in the 2000s,the cumulated temperature higher than 0 ℃ increased to the maximum during the last 50 years. The ending date of farming period,farming days and cumulated temperature higher than 0 ℃ in oases in front of mountains and desert oases had abruptly changed in 1995 /1997,1982 /1990 and 1996 /1999,respectively. The increase of heat resources in farming period had some influence on the adjustment of cropping structure and cropping production in Zhangye Prefecture.
中文关键词	农耕期 ; 热量资源 ; 农业生产 ; 张掖市
英文关键词	farming period thermal resources agricultural production Zhangye Prefecture
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:5658341
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/2XILL650/232376
作者单位	1.甘肃省张掖市气象局, 张掖, 甘肃 734000, 中国; 2.中国气象局兰州干旱气象研究所, 兰州, 甘肃 730020, 中国
推荐引用方式 GB/T 7714	殷雪莲,王涓力. 张掖市农耕期热量资源变化特征及对农业生产的影响[J]. 中国气象局兰州干旱气象研究所,2015,37(5):1406-1411.
APA	殷雪莲,&王涓力.(2015).张掖市农耕期热量资源变化特征及对农业生产的影响.冰川冻土,37(5),1406-1411.
MLA	殷雪莲,et al."张掖市农耕期热量资源变化特征及对农业生产的影响".冰川冻土 37.5(2015):1406-1411.