CAJ | 학술논문

为了探讨植被气孔阻抗的变化对主要气候因子的影响,利用2000年6月16日-7月31日的NCAR(美国国家大气研究中心)资料,应用WRF(Weather Research Forecast)模式对植被气孔阻抗进行了三组试验:控制试验(CS)、敏感性试验1(RS↓)和敏感性试验2(RS↑),结合江西省80个气象站的观测资料进行分析.结果表明:控制试验(CS)可以较好的模拟该流域的温度、降水、相对湿度时间变化及空间分布特征,它们与实测数据的相关系数分别为0.71、0.79和0.58,皆通过了0.01水平的t检验;敏感性试验结果显示:当气孔阻抗减小时,降水和相对湿度增加,温度下降;相反,当气孔阻抗增加时,降水和相对湿度减小,温度升高;气孔阻抗的变化对温度和相对湿度的影响在整个区域是一致的增大或减小的,而降水所体现出来的情况则较复杂.研究结果可为植被与大气间通量交换的参数化研究提供参考.
위료탐토식피기공조항적변화대주요기후인자적영향,이용2000년6월16일-7월31일적NCAR(미국국가대기연구중심)자료,응용WRF(Weather Research Forecast)모식대식피기공조항진행료삼조시험:공제시험(CS)、민감성시험1(RS↓)화민감성시험2(RS↑),결합강서성80개기상참적관측자료진행분석.결과표명:공제시험(CS)가이교호적모의해류역적온도、강수、상대습도시간변화급공간분포특정,타문여실측수거적상관계수분별위0.71、0.79화0.58,개통과료0.01수평적t검험;민감성시험결과현시:당기공조항감소시,강수화상대습도증가,온도하강;상반,당기공조항증가시,강수화상대습도감소,온도승고;기공조항적변화대온도화상대습도적영향재정개구역시일치적증대혹감소적,이강수소체현출래적정황칙교복잡.연구결과가위식피여대기간통량교환적삼수화연구제공삼고.
To understand the impacts of stomata resistance variation of vegetation on main climate factors in Poyang Lake basin, three experiments including control experiment (CS) , sensitive experiment 1(RS1) and sensitive experiment 2(RS2) was conducted by using Weather Research Forecast (WRF) model, based on NCAR dataset from June 16 to July 31 in 2000. The results, analyzed with observation data from 80 meteorological stations in Jiangxi province, showed that CS could simulate well in temporal change and spatial distribution of temperature, precipitation and relative humidity in this region. The correlation coefficients between them were all significant at 0. 01 levels, with 0. 71, 0. 79 and 0. 58 respectively. Precipitation and relative humidity increased ( decreased) with the stomata resistance's decrease (increase) , but temperature decreased (increased) according to RS1(RS2). In the whole Poyang Lake basin , temperature and relative humidity changed along the same tendency with stomata resistance changed, but precipitation changed complicated and needed to study more in future. The research conclusion could provide references to parameter research on the flux exchange between vegetation and atmosphere.