干旱区生态环境知识资源中心(Arid): 近十年气温和降水对荒漠植物梭梭、刺蓬物候期的影响

Arid

	近十年气温和降水对荒漠植物梭梭、刺蓬物候期的影响
其他题名	Influence of temperature and precipitation on phenology of desert plant Haloxylon ammodendron and Cornulaca alaschanica in recent ten years
	蒋菊芳 1; 梁从虎 2; 杨华 2; 张宇林 2; 丁文魁 2; 杨永龙 2
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2017
卷号	31 期号:2 页码:141-146
中文摘要	基于甘肃省武威市农试站对梭梭和刺蓬的观测资料,运用线性倾向估计法、SPSS统计软件进行逐步回归和方差分析,建立了关键物候期的气候预测模型。结果表明: (1)荒漠区近十年气温略下降、降水增加,梭梭物候期较稳定,各物候期最早最晚出现日期相差达14 ~ 26天。刺蓬的物候期变化较大,各物候期最早最晚出现日期相差达40 ~ 142天,刺蓬物候期对气候变化更敏感。(2)梭梭返青期、展叶期、新枝形成期、开花期和黄枯期年际变化倾向率为1.1 ~ 5.3d/10a,近十年物候期略有推迟; 刺蓬返青期、花序形成期、开花期和黄枯期年际变化倾向率为10.8 ~ 17.3d/10a,近十年物候期推迟,变率较大。(3)梭梭春季萌动期缩短,营养生长期、生殖生长期和全生育期延长。刺蓬营养生长期缩短,生殖生长期和全生育期却延长。分析≥0℃积温、累计降水对荒漠植物的影响,梭梭是喜温耐旱植物; 而刺蓬受降水影响大。(4)气温与梭梭物候期多为显著负相关,春季气温越高,梭梭春季物候期提前; 秋季气温越高,秋季物候期推迟。3 ~ 6月降水与梭梭物候期多为显著正相关,降水量越多,梭梭物候越迟。而气温与刺蓬物候呈显著正相关,温度越高,物候期越迟; 水分条件适宜刺蓬物候期才会出现,高温干旱不利于刺蓬生长。
英文摘要	Based on the phenology observation data of Haloxylon ammodendron and Cornulaca alaschanica from Wuwei meteorological bureau of Gansu Province,by using the methods of linear trend estimation,stepwise regression and variance analysis,the key phenology’climatic forecast models were set up. The results showed: (1) The temperature dropped slightly and precipitation increased in desert area over the past decade. The phenology of Haloxylon ammodendron was stable,the phenology latest appeared day differed from earliest 14 to 26d. The phenology of Cornulaca alaschanica changed greatly,the phenology latest appeared day differed from earliest 40 to 142d,and the phenology of Cornulaca alaschanica was more sensitive to climate change. (2) Haloxylon ammodendron’ s turning green period,leaf expansion period,shoots formation period,flowering period and withering period of interannual variation tendency rate was 1.1 ~ 5.3d/10a,the phenology slightly delayed in recent 10 years. Cornulaca alaschanica turning green period,inflorescence formation period,flowering period and withering period of interannual variation tendency rate was 10.8 ~ 17.3d/10a,the phenology delayed in recent ten years,and the variable rate was larger. (3) The spring bud period of Haloxylon ammodendron,the vegetative growth period,the reproductive growth period and the whole growth period were all prolonged. The vegetative growth period of Cornulaca alaschanica was shortened,and the reproductive growth period and the whole growth period were prolonged. Accoeding to the influence of ≥0℃ accumulated temperature and total precipitation on the desert plants,Haloxylon ammodendron is a thermophilic drought tolerant plant,and Cornulaca alaschanica is largely affected by precipitation. (4) The temperature and phenology of Haloxylon persicum was significant negative correlation,the temperature was higher in spring,the spring phenology of Haloxylon ammodendron was advanced. The autumn temperature was higher,the autumn phenology was postponed. Precipitation in March to June and and phenology of Haloxylon ammodendron was significantly positive correlation,the more rainfall was, the more the phenology of Haloxylon ammodendron was postponed. The temperature and the phenology of Cornulaca alaschanica was significantly positive correlation,the temperature was higher,the phenology was later. When the water condition was suitable for the growth,the phenology of Cornulaca alaschanica would appear. The high temperature and drought were not suitable for the growth of Cornulaca alaschanica.
中文关键词	物候期 ; 梭梭 ; 刺蓬 ; 气温 ; 降水
英文关键词	ology Haloxylon ammodendron Cornulaca alaschanica temperature precipitation
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:5912941
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/2XILL650/236039
作者单位	1.中国气象局兰州干旱气象研究所, 甘肃省干旱气候变化与减灾重点实验室;;中国气象局干旱气候变化与减灾开放实验室, 兰州, 甘肃 730020, 中国; 2.甘肃省武威市气象局农业气象试验站, 武威, 甘肃 733000, 中国
推荐引用方式 GB/T 7714	蒋菊芳,梁从虎,杨华,等. 近十年气温和降水对荒漠植物梭梭、刺蓬物候期的影响[J]. 中国气象局兰州干旱气象研究所,2017,31(2):141-146.
APA	蒋菊芳,梁从虎,杨华,张宇林,丁文魁,&杨永龙.(2017).近十年气温和降水对荒漠植物梭梭、刺蓬物候期的影响.干旱区资源与环境,31(2),141-146.
MLA	蒋菊芳,et al."近十年气温和降水对荒漠植物梭梭、刺蓬物候期的影响".干旱区资源与环境 31.2(2017):141-146.