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气候变化背景下信阳茶叶气候资源时空分布特征分析
Analysis on Spatiotemporal Distribution Characteristics of Xinyang Tea Climate Resources under the Background of Climate Change
【摘要】 基于1961—2020年信阳地区逐日气象观测数据,采用5日滑动平均法、气候倾向率法等,分析信阳地区气候资源及历年开采期的时空分布规律,研究表明:(1)信阳市茶叶生长季内多年平均气温和≥0℃活动积温分别为15.6℃和5 195.0℃·d,其气候倾向率分别为0.21℃/10年和70.0℃·d/10年。(2)生长季内平均降水量和相对湿度分别为1 089.0 mm和76%,降水量年际差异大。(3)平均日照时数为1 902.7 h,气候倾向率为-89.6 h/10年,年际、年代际差异较大,空间上表现为东高西低。(4)平均开采期为87.7 d,年际、年代际差异较大,空间上东早西晚。
【Abstract】 Based on the daily meteorological observation data of Xinyang region from 1961 to 2020, using the 5-day moving average method and the climate tendency rate method, the spatiotemporal distribution of climate resources and mining periods over the years in Xinyang region was analyzed. The results showed that:(1) During the tea growing season in Xinyang City,the annual average temperature and active accumulated temperature of ≥0 ℃ were 15.6 ℃ and 5 195.0 ℃·d, respectively. The climate tendency rates were 0.21 ℃/10 years and 70.0 ℃·d/10 years, respectively.(2) The average precipitation and relative humidity during the growing season are 1 089.0 mm and 76%, respectively, with significant interannual differences in precipitation.(3)The average sunshine duration is 1 902.7h, and the climate tendency rate is-89.6h/10 years. There are significant interannual and interdecadal differences, with a spatial increase in the east and a decrease in the west.(4) The average mining period is 87.7d,with significant interannual and interdecadal differences, with a spatial distribution of early in the east and late in the west.
- 【文献出处】 农业灾害研究 ,Journal of Agricultural Catastrophology , 编辑部邮箱 ,2023年07期
- 【分类号】S571.1;S162.54
- 【下载频次】6