郭江勇,林纾.气候变化对西峰黄土高原地温与物候期的影响[J].干旱地区农业研究,2008,(2):235~239
气候变化对西峰黄土高原地温与物候期的影响
Impact of ground temperature changing on growing of crops in the loess plateau of Xifeng Gansu
  
DOI：10.7606/j.issn.1000-7601.2008.02.45
中文关键词:  地温变化特征  作物发育期  影响分析  西峰黄土高原
英文关键词:characters of ground temperature  growth period of crops  analysis of influence  loess plateau in Xifeng,Gansu
基金项目:科技部科研院所社会公益研究专项“西北农作物对气候变化的响应及其评价方法”(2005DIB3J100)
作者单位
郭江勇 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重点开放实验室，甘肃 兰州 730020；甘肃省庆阳市气象局，甘肃 庆阳 745000 
林纾 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重点开放实验室，甘肃 兰州 730020；兰州区域气候中心，甘肃 兰州 730020 
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中文摘要:
      用西峰黄土高原1971-2005年5、10、15、20 cm地温和1981-2005年冬小麦发育期、1984-2005年苹果树、梨树物候资料,分析了地温变化对物候期的影响。结果表明,西峰各季节10 cm地温均呈升高的趋势,增温幅度春季最明显,变幅也最大,冬季次大,再是秋季,夏季最小。地温与物候期均为负相关,冬季与冬小麦发育期最显著的是乳熟期,相关系数为-0.57-0.65,与苹果树发育期最显著的是成熟期,相关系数为-0.48-0.60,与梨树发育期最显著的是叶变始期和开花始期为-0.41-0.52;春季与冬小麦发育期最显著的是返青期,相关系数为-0.60-0.63,与苹果树发育期最显著的是叶芽开放期和展叶始期,为-0.66-0.68,与梨树发育期最显著的是开花始期,为-0.68-0.69。春季地温对作物发育期的影响具有明显的持续性和滞后性,冬季地温对作物发育期影响有阶段性,春季地温对作物发育期的影响比冬季的明显。
英文摘要:
      ith phenological data of 5,10,15 and 20cm ground temperature from 1971～2005,winter wheat development period from 1981～2005 and apple and pear trees from 1984～2005 in Xifeng loess plateau,effect of temperature change on phenological stages is analyzed.The results show that the 10 cm temperature in every season showed a trend of continous rise,of which the rate of warming and range of variation in spring was the most obvious,then winter,followed by autumn,and summer the least.Temperature and phenology were negatively correlated,winter wheat development period with the most significant is the milky stage-0.57～-0.65.Apple development period with the most significant of maturity of0.48～-0.60,pear development period with the most significant change is only leaves and flowering period for-0.41～-0.52.Spring wheat development period with the most significant is reviving-0.60～-0.63.Apple development period with the most significant is the opening period and leaf bud,leaf for-0.66～-0.68.Pear development period with the most significant is the flowering period-0.68～-0.69.The study indicated that the influence of ground temperature in winter on growing of crops lasted longer than that of ground temperature in spring,the growth period of crops was impacted by ground temperature in spring more than by ground temperature in winter.
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