地理科学 ›› 2011, Vol. 31 ›› Issue (8): 989-995.doi: 10.13249/j.cnki.sgs.2011.08.989

• 论文 • 上一篇    下一篇

黄土高原陆地表层作物生长季最大可能蒸散量的变化特征

姚玉璧1,2, 王润元1, 杨金虎2, 陆登荣3, 肖国举4, 王洋2, 刘林春2   

  1. 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 与减灾重点开放实验室, 甘肃 兰州 730020;
    2. 甘肃省定西市气象局, 甘肃 定西 743000;
    3. 甘肃省气象信息中心, 甘肃 兰州730020;
    4. 宁夏大学新技术应用研究开发中心, 宁夏 银川 750021
  • 收稿日期:2010-09-11 修回日期:2011-02-10 出版日期:1997-08-20 发布日期:1997-08-20
  • 基金资助:
    国家公益性行业(气象)科研专项(CYHY201106029,GYHY200806021)、国家自然科学基金重点项目(40830957)、甘肃省气象局第五批"十人计划"项目、干旱气象科学研究基金项目(IAM200904、IAM200913)资助。

Change of Terrestrial Surface Potential Evapotranspiration for the Growth Period in Loess Plateau

YAO Yu-bi1,2, WANG Run-yuan1, YANG Jin-hu2, LU Deng-rong3, XIAO Guo-ju4, WANG Yao2, LIU Lin-chun2   

  1. 1. China Meteorological Administration Key Laboratory of Arid Climate Change and Reducing Disaster, Gansu Province Key Laboratory of Arid Climate Change and Reducing Disaster, Lanzhou Institute of Arid Meteorology, China Meteorological Administration, Lanzhou, Gansu 730020, China;
    2. Meteorological Bureau of Dingxi City, Dingxi, Gansu 743000, China;
    3. Gansu Meteorological Information Center, Lanzhou, Gansu 730020, China;
    4. New Technology Application Research and Development Centre of Ningxia University, Yinchuan, Ningxia 750021, China
  • Received:2010-09-11 Revised:2011-02-10 Online:1997-08-20 Published:1997-08-20

摘要: 基于黄土高原1961~2008年气候资料,应用修订的Penman-Monteith(P-M)模型计算作物生长季最大可能蒸散量,分析其时空分布、异常分布特征和次区域时间演变特征。结果表明:一致性异常分布是黄土高原作物生长季最大可能蒸散量的最主要空间模态。高原西北部区域作物生长季最大可能蒸散量呈显著增加趋势,且发生突变现象;高原东北部区域和高原东南部区域作物生长季最大可能蒸散量呈显著下降的趋势,也发生突变;黄土高原作物生长季最大可能蒸散量的3个空间分区中,3~4a的周期振荡表现得比较显著。

Abstract: Based on climatological data in Loess plateau from 1961 to 2008, the potential evapotranspiration of the growth period was computed by using revised Penman-Monteith Model. The spatial-temporal distribution, anomaly distribution and sub-regional temporal variations of the potential evapotranspiration in the growth period were analyzed at the same time. The results showed that the main spatial model of annual potential evapotranspiration of the growth period in Loess plateau is consistent anomaly distribution. In northwest regions of Loess plateau, the potential evapotranspiration of the growth period displayed a significant ascending trend and showed an abrupt change; in northeast and southeast regions of Loess plateau, the potential evapotranspiration of the growth period displayed a significant descending trend and showed an abrupt change too. In all these three regions, the potential evapotranspiration of the growth period shows an obvious fluctuating period of 3-4years.

中图分类号: 

  • P467