西藏加查县气候与经济农产品产量相关性分析

Analysis of Correlation between Climate and Cash Crops Production in Gyaca County

通过对西藏自治区加查县二镇五乡经济农产品种类分布、历年产量的调研,分析本地的基本气候特征,并利用加查国家气象站2010—2019年气温、降水量、日照等常规气象观测资料,结合运用统计学方法计算分析和研究,得出气候变化和经济农产品的相关性。结果表明:在加查县独特的地理和气候条件下,生产出多种优质经济农产品,沿江一线盛产核桃、苹果等,崔久乡和坝乡盛产冬虫夏草;近10年冬虫夏草产量有增加趋势,核桃和苹果产量有一定的减少趋势,经济农产品产量的变化和气温上升、降水减少、日照增多有一定的相关性;最后对加查县常见的气象灾害提出一些对策。

Based on the species distribution and annual yield survey over the years of cash crops in Fifth Village,Second Town,Gyaca County,this paper conducts an analysis of the essential climate features in this area. Looking through standard meteorological data including temperature,precipitation and solar radiation from 2010 to 2019 observed by Gyaca National Meteorological Station,statistical methods are adopted to work out the correlation between climate change and cash crops. The results are as follows:the unique features of geography and climate in Gyaca County contribute to the production of a variety of quality cash crops;walnut and apple abound along the river;cordyceps sinensis abounds in Cuijiu Village and Ba Village. In past ten years,the yield of cordyceps sinensis steady increased,and the yield of walnut and apple had insignificant decline. There are insignificant correlation between yield change of cash crops and rising temperature,reducing precipitation and increasing solar radiation. Finally,some countermeasures are put forward to deal with meteorological disasters in Gyaca County.