| 齐文娥,欧阳曦.气候变化对荔枝单产的影响[J].中国南方果树,2019,48(3):47-49 |
| 气候变化对荔枝单产的影响 |
| Impacts of climate variations on litchi yield in China |
| 投稿时间：2018-08-03 修订日期：2018-09-28 |
| DOI：10.13938/j.issn.1007-1431.20180431 |
| 中文关键词: 气温 降雨 单产 荔枝 |
| 英文关键词:temperature rainfall yield litchi |
| 基金项目:现代农业产业技术体系建设专项资金资助（CARS-33-18） |
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| 中文摘要: |
| 为了探究气候对荔枝产量影响的内在规律,本文基于我国39个荔枝主产县2011年至2016年的荔枝产出、物候期以及气象数据构建双向固定效应模型。结果表明,荔枝的单产与营养期和开花期的降水天数呈负相关,与抽穗期的最低温度以及花期的最高温度呈正相关。就不同的荔枝品种而言,“妃子笑”的单产主要受到生长期的降雨天数、抽穗期的最高气温以及花期的最高气温的影响；“桂味”和“黑叶”的单产则都会受到生长期最高气温、成熟期的最高气温以及成熟期的降雨天数的影响,但影响程度存在差异,此外,生长期及花期的降雨天数也会影响到“黑叶”的单产。 |
| 英文摘要: |
| In order to explore the inherent law of climate impact on litchi production, this paper builds a two-way fixed effect model based on the data on litchi yield, litchi’s phenological period and climate variations of 39 litchi’s main producing counties in China. The results showed that rainfall days has negative impacts on litchi yield during both the vegetative stage and the flowering stage, while the lowest temperature during the heading stage and the highest temperature during the flowering stage have positive impacts on litchi yield. For different litchi varieties, weather effects on litchi yield differs substantially during different phenological period. The yield of "Feizixiao fall days in the vegetative stage, the highest temperature in the heading stage and the highest temperature in the flowering period. while the yield of “Guiwei” and “Heiye” are highly related to the highest temperature during the vegetative stage and ripening stage and rainfall days during the ripening stage with the degree of impact on these two litchi varieties varies. In addition, rainfall days in the vegetative stage and flowering stage will also affect the yield of “Heiye”. |
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