Spatial variation of scale effects of specific sediment yield in Zhujiang (Pearl River) basin
文献类型：SCI/SSCI论文
| 作者 | He L.; Zhang L.; Yan M.; Zhang L. |
| 发表日期 | 2014 |
| 关键词 | delivery problem coastal ocean china patterns humans issues flux |
| 英文摘要 | The scale effects of Area-Specific sediment yield (Ys) are studied for Zhujiang basin and its four sub-basins. Considering the entire Zhujiang basin, there is no apparent relation between Ys and contributing area (A(d)) for stations when A(d) is less than 100,000 km(2), while there is an upper envelope outline of Ys. For the stations with A(d) larger than 100,000 km(2) mainly located on the middle and lower reaches, there is a negative relation of Ys to A(d). Considering the four sub-basins of Zhujiang basin, three kinds of relations between Ys and A(d) are established: (1) Ys increases with A(d) for the sub-basin of the upper reach; (2) Ys increases with A(d) then declines for the two sub-basins of the middle reaches; (3) Ys decreases with Ad for the sub-basin of the lower reaches. The Ys-A(d) relation is further investigated using the spatial variation of hill slopes, the Land Use and Land Cover (LULC), and the bed slopes. Finally, to remove the effect of A(d) and to make Ys comparable across scales, the scaled Ys calculation equations are given for both linear and non-linear relations between Ys and A(d) first. And then the Ys are scaled to the standard units of 1000 km(2)and 10,000 km(2). Using Kriging method, the Ys maps are created under GIS platform where high Ys centers are outlined, and the spatial patterns of Ys are compared for the two standard unit Ys maps. (C) 2013 Elsevier Ltd and INQUA. All rights reserved. |
| 出处 | Quaternary International |
| 卷 | 336 |
| 页 | 117-126 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1040-6182 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/29474]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | He L.,Zhang L.,Yan M.,et al. Spatial variation of scale effects of specific sediment yield in Zhujiang (Pearl River) basin. 2014. |
入库方式： OAI收割
来源：地理科学与资源研究所
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