CAJ | 학술논문

不同于山区丘陵地区,平原圩区地形平坦,河网交错,水文过程复杂不确定,且缺乏有效的水文观测数据,因此SWAT 模型的构建和应用受到较大的限制.以赣江下游平原圩区蒋巷联圩为例,在充分调查研究区水文过程的基础上,结合人工干预技术,经过电排站出口和河道概化、汇水区划分和子流域边界修正,完成了研究区SWAT 模型子流域概化;以2006年-2008年圩区电排站的抽水量数据为基础,进行了圩区水文过程模拟.结果表明,各汇水区率定期的决定系数 R2达到0.63以上, Nash2Sutcliffe效率系数 NS E达到0.70以上;验证期R2达到0.70以上, N SE 达到0.79以上.采用人工干预的方法能使SWAT 模型子流域划分更加符合实际,使SWAT 模型能够应用于平原圩区,并达到较好的水文过程模拟效果.
불동우산구구릉지구,평원우구지형평탄,하망교착,수문과정복잡불학정,차결핍유효적수문관측수거,인차SWAT 모형적구건화응용수도교대적한제.이공강하유평원우구장항련우위례,재충분조사연구구수문과정적기출상,결합인공간예기술,경과전배참출구화하도개화、회수구화분화자류역변계수정,완성료연구구SWAT 모형자류역개화;이2006년-2008년우구전배참적추수량수거위기출,진행료우구수문과정모의.결과표명,각회수구솔정기적결정계수 R2체도0.63이상, Nash2Sutcliffe효솔계수 NS E체도0.70이상;험증기R2체도0.70이상, N SE 체도0.79이상.채용인공간예적방법능사SWAT 모형자류역화분경가부합실제,사SWAT 모형능구응용우평원우구,병체도교호적수문과정모의효과.
@@@@Unlike the mountain and highland area, the plain polder area has flat t opography and complicated river netw ork, thus the hydrologic processes is uncertain and the effective hydrological data are limited, thereby affecting the development and appli2 cation of SWAT model. In this paper, the Jiangxiang polder of the lower Ganjiang River was selected as the case study. Through the invest igat ion of the hydrogeological conditions of the study area and artificial intervention t echnology, the sub2basin delinea2 tion based on SWAT model w as obtained from the generalization of the outlet of electrical pumping station and river course, di2 vision of drainage area, and modification of boundary conditions of the sub2watershed. The hydrologic processes of the polder ar2 ea w ere simulat ed based on the pumpage dat a of the electrical pumping station between 2006 and 2008. T he results showed t hat the coefficient of determinat ion ( R2 ) and Nash2Sutcliffe coefficient ( N SE) in each drainage area reach 0. 63 and 0. 70, respective2 ly, during the model calibration period, and R2 and NS E reach 0. 70 and 0. 79, respectively, during the model validation period. The sub2basin delineation results were more reasonable using the artificial intervention technology, therefore the SWAT model was applicable for the simulation of hydrological processes in the polder area.