摘要
基于大别山区35个气象观测站1971-2020年逐日气象资料、DEM数据,采用气候统计分析、逐步订正法和趋势面插值等方法,对茶叶光合生产潜力(Y_(Q))、光温生产潜力(Y_(T))和气候生产潜力(Y_(W))时空变化特征、气候资源贡献率及其对气候变化的响应进行了分析。结果表明:大别山区茶叶Y_(Q)和Y_(W)呈下降趋势,降幅分别为0.58和0.05 t·hm^(-2)·(10a)^(-1),Y_(T)呈增加趋势,增幅为0.36 t·hm^(-2)·(10a)^(-1);空间分布上,YQ随纬度的增加而增加,Y_(T)随纬度和海拔的增加而减少,Y_(W)随纬度的增加而减少、随海拔的增加而增加;太阳辐射、温度和降水对Y_(W)的贡献率分别为26%、48%、26%,温度的促进作用与太阳辐射和降水的抑制作用相互抵消,致使Y_(W)总体呈动态平衡趋势;气候变化背景下,大别山区北部地区较南部地区Y_(Q)下降趋势更加明显,南部地区较北部地区Y_(T)增加趋势更加明显,Y_(W)在低海拔地区呈增加趋势而在高海拔地区呈下降趋势。研究结果可为大别山区茶叶产业充分利用气候资源、高效趋利避害、合理优化产业布局提供科学依据。
Based on the daily meteorological data of 35 meteorological observation stations during 1971-2020 in Dabie Mountains and DEM data,methods such as climatic statistical analysis,successive correction and trend surface interpolation are used,and the spatiotemporal distribution characteristics of the photosynthesis(Y_(Q)),photo-thermal(Y_(T))and climatic potential productivity(Y_(W))of tea,the contribution rate of climatic resources and their response to climate change are analyzed.The results show that Y_(Q) and Y_(W) of tea in Dabie Mountains show a decreasing trend,the rate of decline is 0.58 and 0.05 t.hm^(-2) per 10 years,Y_(T) show an increasing trend,the rate of increase is 0.36 t.hm^(-2)per 10 years.In spatial distribution,Y increases with latitude,Y_(T) decreases with latitude and altitude,and Yw decreases with latitude and increases with altitude.The contribution rates of solar radiation,temperature and precipitation to Yw are 26%,48% and 26%,respectively.The increase in temperature is offset by the decrease in solar radiation and precipitation,resulting in a general dynamic equilibrium trend.Under the background of climate change,the decreasing trend of Y_(Q) in the northern part of the Dabie Mountains is more obvious than that in the southern part.The increasing trend of Yr in the southern part is more obvious than that in the northern part.The Y_(W) in the low-altitude area is increasing,and that in the highaltitude area is decreasing.The results of this study can provide the scientific basis for the tea industry in Dabie Mountains to make full use of climate resources,pursue advantages and avoid disadvantages efficiently,and optimize industrial layout rationally.
作者
曹强
伍琼
陈曦
岳伟
CAO Qiang;WUQiong;CHEN Xi;YUE Wei(Lu'an Meteorological Bureau,Anhui,Lu'an 23701l;Anhui Agricultural Meteorological Center,Hefei 230031)
出处
《气象科技》
2023年第2期295-301,共7页
Meteorological Science and Technology
基金
科技部国家重点研发计划“科技助力经济2020”重点专项气象行业项目(KJZLJJ202002)。
关键词
大别山区
茶叶生产
气候生产潜力
气候贡献率
变化特征
Dabie Mountains
tea production
climatic potential productivity
climatic contribution rate
variation characteristics
