| 摘要: |
| 为了解气候变暖对铜仁市热量资源变化的影响，对农业热量资源利用及农业经济的发展提供科学依据，本文基于铜仁市近52年（1960-2011）的日平均气温数据，采用线性倾向估计等统计方法，分析气温≥0oC、5oC、10oC及15oC的起始日期、终止日期、持续天数和积温的变化特征。结果表明：1960-2011年期间热量资源呈显著增加趋势。≥0oC、5oC、10oC和15oC的积温和持续天数普遍显著增加，≥0oC、5oC、10oC和15oC的年均积温分别为6285.51oC·d、5976.0oC·d、5412.2oC·d及4614.9oC·d，分别以59.4 oC/10a、54.8oC/10a、48.9oC/10a及79.4oC/10a的速率显著增暖。初始日期整体表现为提前趋势，终止日期则为延后趋势。持续天数显著增加，积温显著增强。 |
| 关键词: 积温;热量资源;变化特征;铜仁市 |
| DOI： |
| 投稿时间：2018-09-20修订日期：2018-12-18 |
| 基金项目:贵州大学引进人才科研项目（自然科学类）贵大人基合字（2016）34号 |
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| Variation Characteristics of Thermal Resources in Tongren City in Past 52 years |
| Xu Xue |
| (Department of Ecology, College of Life Science, Guizhou University) |
| Abstract: |
| Based on the daily average air temperature from Tongren station during the recent 52 years, the present study investigated the features of beginning and ending date, lasting days, and accumulated temperature steadily above 0?C, 5?C, 10?C, and 15?C by applying linear trend estimation, for the purpose of further understanding the influence of climate warming on the thermal resources of Tongren. And provides scientific theory basis for the potential development of agricultural thermal resources and agricultural economic. Results indicated that the thermal resource prominently increases in Tongren during the period of 1960-2011. Following the climate warming, the accumulated temperature and lasting days steadily above 0?C, 5?C, 10?C, and 15?C are generally strengthened. The annual average of accumulated temperature steadily above 0?C, 5?C, 10?C, 15?C are 6285.51 oC·d，5976.0oC·d, 5412.2oC·d, 4614.9oC·d, and significantly increase by speed of 59.4oC/10a, 54.8oC/10a, 48.9oC/10a, and 79.4oC/10a, respectively. Furthermore, the beginning dates generally show an advancing trend, and the ending date generally reveal a delaying trend. Hence, the continuous increasing of accumulated temperature and lasting days are primarily attributed to the beginning date advancing and the ending date delaying. |
| Key words: Accumulated Temperature; Thermal Resource; Variation Characteristics; Tongren City |
