CAJ | 학술논문

用陆面模式SSiB与动态植被模型TRIFFID以及流域地形指数水文模型的耦合模型SSiB4T/TRIFFID模拟了长江下游的青弋江流域植被和水量平衡的动态过程,分析了气温和降水变化对流域径流和蒸发的影响。结果表明：（1）流域气温上升10C,径流减小6.7-9.7%;气温上升20C,径流减小11.7-17.4%;（2）降水增加5%,径流增加9.2-11.6%,降水减小5%,径流减小8.6-11.6%;（3）温度不变仅降水变化对流域蒸发影响很小,温度增加20C,流域总蒸发3-10月份增加8.0-10.7mm,其余月份增加5.4-7.1mm,1月和12月蒸发对温度增加最敏感;（4）气温上升20C,叶面积指数1月和12月增加,5-10月略有减小。降水和气温变化对青弋江流域径流影响明显且与植被类型有关,流域蒸发的变化主要受温度变化的控制。
용륙면모식SSiB여동태식피모형TRIFFID이급류역지형지수수문모형적우합모형SSiB4T/TRIFFID모의료장강하유적청익강류역식피화수량평형적동태과정,분석료기온화강수변화대류역경류화증발적영향。결과표명：（1）류역기온상승10C,경류감소6.7-9.7%;기온상승20C,경류감소11.7-17.4%;（2）강수증가5%,경류증가9.2-11.6%,강수감소5%,경류감소8.6-11.6%;（3）온도불변부강수변화대류역증발영향흔소,온도증가20C,류역총증발3-10월빈증가8.0-10.7mm,기여월빈증가5.4-7.1mm,1월화12월증발대온도증가최민감;（4）기온상승20C,협면적지수1월화12월증가,5-10월략유감소。강수화기온변화대청익강류역경류영향명현차여식피류형유관,류역증발적변화주요수온도변화적공제。
Basing the coupled model（SSiB4T/TRIFFID） of Land surface model SSiB4T,Plant dynamic vegetation model TRIFFID and basin topographic index of hydrological model（TOPMODEL）,the dynamic process of vegetation and water balance in Qingyijiang basin was simulated to analyze the impact of temperature and precipitation on watershed runoff and evaporation.The results show that（1） The temperature increases 10C（20C）,the watershed runoff will decrease 6.7% to 9.7%（11.7% to 17.4%）;（2） The precipitation increases（decreases）5%,the watershed runoff will increase（decrease）9.2-11.6%（8.6-11.6%）.（3） Constant temperature with precipitation variation have little effect on the watershed evaporation.When temperature rises 20C monthly total evaporation of the basin increases 8.0to 10.7mm（5.4 to 7.1mm） from March to October（during rest of the year）.In January and December,evaporation is the most sensitive to temperature increase.（4） Leaf area index increases significantly in January and December,while slightly decreases in the month from May to October.The total runoff of the basin is sensitive to temperature and precipitation changes,and related with types of vegetation cover.The variations of evaporation are mainly controlled by that of temperature.