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中国农学通报

中国农学通报 ›› 2023, Vol. 39 ›› Issue (27): 81-85.doi: 10.11924/j.issn.1000-6850.casb2022-0816

• 资源·环境·生态·土壤 • 上一篇    下一篇

基于DEM的黑龙江省10℃界限温度时空变化特征分析

张金峰1(), 陈农1, 闫敏慧1(), 徐占胜1, 杨宁1, 高玲1, 吕欣陆2   

  1. 1 黑龙江省气象服务中心，哈尔滨 150030
    2 南京信息工程大学，南京 210044
  • 收稿日期:2022-09-20 修回日期:2022-12-12 出版日期:2023-09-25 发布日期:2023-09-22
  • 通讯作者: 闫敏慧，女，1973年出生，黑龙江哈尔滨人，正研级高工，硕士，主要从事应用气象研究。通信地址：150030 黑龙江省哈尔滨市香坊区电碳路71号，Tel：0451-55104284，E-mail：1076031215@qq.com。
  • 作者简介:

    张金峰，男，1982年出生，黑龙江哈尔滨人，工程师，硕士，主要从事应用气象研究。通信地址：150030 黑龙江省哈尔滨市香坊区电碳路71号，Tel：0451-55104284，E-mail：。

  • 基金资助:
    黑龙江省自然科学基金联合引导项目“气候变化背景下黑龙江玉米生育期气候资源利用率评估研究”(LH2021D020)

Analysis of Spatiotemporal Variation Characteristics of 10℃ Critical Temperature Based on DEM in Heilongjiang Province

ZHANG Jinfeng1(), CHEN Nong1, YAN Minhui1(), XU Zhansheng1, YANG Ning1, GAO Ling1, LV Xinlu2   

  1. 1 Heilongjiang Meteorological Service Center, Harbin 150030
    2 Nanjing University of Information Science and Technology, Nanjing 210044
  • Received:2022-09-20 Revised:2022-12-12 Published-:2023-09-25 Online:2023-09-22

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摘要：

本研究基于黑龙江省1991—2020年逐日气温资料，探讨了黑龙江省≥10℃界限温度初日、终日的时空变化以及≥10℃有效积温与经纬度、海拔高度之间的参数关系和时空分布特征。结果表明：黑龙江省≥10℃有效积温与经纬度和海拔高度的相关性达到了极显著水平，有效积温地理计算模型模拟效果较好；研究期内≥10℃界限温度的起始日期呈提前态势，其提前趋势山地>平原，终止日期呈延后态势，其延后趋势平原>山地，初日提前和终日延后皆有利于有效积温累积；研究期内≥10℃有效积温呈增加态势，其分布具有明显地域特征，总体呈现由南向北逐渐减少，由山地向平原逐渐增多态势。

关键词: 黑龙江, DEM, 10℃界限温度, 时空变化

Abstract:

Based on daily temperature data in Heilongjiang Province from 1991 to 2020, this study explored the temporal and spatial variations of the critical temperature of ≥10℃ at the beginning and the end of the day, as well as the parameter relationship and spatial-temporal distribution characteristics between the effective accumulated temperature of ≥10℃ and the longitude, latitude and altitude. The results showed that the correlation between the effective accumulated temperature ≥10℃ and the latitude, longitude and altitude in Heilongjiang Province had reached a very significant level, and the effective accumulated temperature geographic calculation model had a good simulation effect. During the study period, the initial date of the critical temperature ≥10 ℃ was in advance, the trend of advance was mountainous>plain, and the final date was delayed, the trend of delay was plain>mountainous. The advance of the initial day and the delay of the final day were conducive to the accumulation of effective accumulated temperature; during the study period, the effective accumulated temperature ≥10℃ showed an increasing trend, and its distribution showed obvious regional characteristics. In general, it gradually decreased from south to north, and gradually increased from mountains to plain.

Key words: Heilongjiang, DEM, 10℃ critical temperature, temporal and spatial variation