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中国农学通报 ›› 2015, Vol. 31 ›› Issue (4): 167-173.doi: 10.11924/j.issn.1000-6850.2014-2254

所属专题: 园艺

• 林学 园艺 园林 • 上一篇    下一篇

1961—2010年贵州省不同茶季茶树需水量的时空变化特征

易俊莲,李 勇,古书鸿   

  1. (贵州省山地环境气候研究所,贵阳 550002)
  • 收稿日期:2014-08-18 修回日期:2014-08-18 接受日期:2014-09-29 出版日期:2015-03-20 发布日期:2015-03-20
  • 通讯作者: 李勇
  • 基金资助:
    中国气象局气候变化专项(CCSF201306)。

Temporal-spatial Variations of Water Requirement for Tea Plants in Guizhou Province During 1961-2010

Yi Junlian, Li Yong, Gu Shuhong   

  1. (Guizhou Institute of Mountainous Environment and Climate, Guiyang 550002)
  • Received:2014-08-18 Revised:2014-08-18 Accepted:2014-09-29 Online:2015-03-20 Published:2015-03-20

摘要: 利用贵州省82个气象站点1961—2010年地面气象观测资料和茶树生育期资料,结合ArcGIS、数理统计等方法,采用联合国粮食与农业组织(FAO,Food and Agriculture Organization)推荐的方法计算了研究区不同茶季的茶树需水量,分析了茶树需水量的时空分布特点及变化趋势。结果表明:近50年来贵州省不同茶季的茶树需水量存在显著差异,大小关系是夏茶>秋茶>春茶>越冬期。从空间分布来看,夏茶和秋茶的需水量呈“西北低东南高”分布型,而越冬期和春茶的需水量呈“西南高东北低”分布型。春、夏、秋茶季以及越冬期的茶树需水量均呈减少趋势,气候倾向率分别为-1.6、-4.8、-1.2、-0.3 mm/(10 a)。近50a来越冬期和春茶季的茶树需水量的地区间差异在缩小;而夏茶和秋茶季的茶树需水量的地区间差异在增大。

关键词: 海洋溢油, 海洋溢油, 损失评估, 直接损失, 间接损失

Abstract: Based on the ground observation data from 82 meteorological stations during 1961-2010 and longterm tea experimental observations data, using some methods recommended by Food and Agriculture Organization, the water requirement were calculated in different growing seasons for tea plants in Guizhou. The temporal-spatial variation and the trend of water requirement for tea plants were evaluated by the methods of statistics and ArcGIS in order to assess the impact of climate change on tea plants. The results indicates that, the water requirement of tea plants in Guizhou has significant differences in different growing seasons in nearly fifty years, the summer tea water requirement accounts for the most, followed by autumn tea; the spatial distribution of summer tea water requirement is similar to that of the autumn tea, which shows a type of "northwest low southeast high"; on the contrary, the water requirement shows a type of "northeast low southwest high" for spring tea and during wintering periods. The averaged water requirement shows a decreasing trend in all of the growing season; the annual climate tendency rate is - 1.6, -4.8, -1.2, -0.3 mm per ten years for spring tea, summer tea, autumn tea, and winter tea, respectively. The water requirement difference of spring tea and winter tea in different regions are decreasing while the water requirement differ? ence of summer tea and autumn tea are increasing over the past five decades.