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| 基于栅格垂向混合产流机制的分布式水文模型 | |
| 其他题名 | Distributed hydrological model based on grid vertically-mixed runoff generation |
| 王贵作; 任立良 | |
| ISSN | 1000-1980 |
| 出版年 | 2009 |
| 卷号 | 37期号:4页码:386-390 |
| 中文摘要 | 根据已有产流机制的研究结果,提出了当土壤含水量大于栅格蓄水容量时会产生径流的栅格蓄水容量概念,以及通过栅格植被根系层深度和田间持水量计算流域内各点栅格蓄水容量的栅格蓄水容量计算方法,并在充分考虑流域内植被类型、土壤类型和土壤水分参数对流域蓄水容量分布影响的基础上,应用栅格垂向混合产流机制描述植被根系层的水量变化,从而避免了对复杂的土壤水运动过程的直接描述.甸子流域的应用结果表明,基于栅格垂向混合产流机制的分布式流域水文模型对多年连续序列模拟的效率系数达到0.744,年均径流深误差为1.18-mm,相对误差为2.18%.此模拟结果对于寒旱区的水文过程模拟来说是可以接受的. |
| 英文摘要 | According to previous research on runoff generation mechanisms, the concept of grid-based storage capacity is proposed: runoff is generated when the soil moisture is larger than the grid-based storage capacity. A method of calculating the grid-based storage capacity in a river basin, which uses the grid-based vegetation root depth and field capacity, is also put forward. After full consideration of the effects of vegetation types, soil types and soil moisture parameters on the distribution of storage capacity in the river basin upstream of the Dianzi hydrological station, the grid-based vertically-mixed runoff generation mechanism was employed to describe the change in soil water storage in the vegetation root layer so as to avoid a direct description of the complex soil water motion. The results show that the efficiency factor of the grid-based vertically-mixed runoff distributed hydrological model for simulating the perennial continuous sequences is 0.744, the mean annual error of runoff depth is 1.18 mm, and the relative error is 2.18% . The results are reasonable and acceptable for the simulation of hydrological processes in cold and arid regions. |
| 中文关键词 | 栅格垂向混合产流 ; 双源蒸散发 ; 分布式水文模型 ; 寒旱区 |
| 英文关键词 | grid-based vertically-mixed runoff generation two-source evapotranspiration distributed hydrological model cold and arid region |
| 语种 | 中文 |
| 国家 | 中国 |
| 收录类别 | CSCD |
| WOS类目 | GEOSCIENCES MULTIDISCIPLINARY |
| WOS研究方向 | Geology |
| CSCD记录号 | CSCD:3701655 |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/223807 |
| 作者单位 | 河海大学, 水文水资源与水利工程科学国家重点实验室, 南京, 江苏 210098, 中国 |
| 推荐引用方式 GB/T 7714 | 王贵作,任立良. 基于栅格垂向混合产流机制的分布式水文模型[J],2009,37(4):386-390. |
| APA | 王贵作,&任立良.(2009).基于栅格垂向混合产流机制的分布式水文模型.,37(4),386-390. |
| MLA | 王贵作,et al."基于栅格垂向混合产流机制的分布式水文模型".37.4(2009):386-390. |
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