近50年长三角地区水系时空变化及其驱动机制
|
|
韩龙飞, 许有鹏, 杨柳, 邓晓军, 胡春生, 徐光来
|
Temporal and spatial change of stream structure in Yangtze River Delta and its driving forces during 1960s-2010s
|
|
Longfei HAN, Youpeng XU, Liu YANG, Xiaojun DENG, Chunsheng HU, Guanglai XU
|
|
| 表1 长三角水利分区近50年水系变化 |
| Tab. 1 Change of streams structure in different regions of YRD in the past 50 years |
|
| 指标 | 时期 | 本文研究区 | 其他地区 | | 武澄锡虞 | 阳澄淀泖 | 杭嘉湖 | 秦淮河流域 | 鄞东南* | 上海地区*[17, 18] | 珠三角深圳地区*[21] | | 面积 (km2) | | 3841.0 | 4914.0 | 7621.0 | 497.1 | 476.1 | 4962.5 | 1991.8 | | 河网密度 (Dd) | 1960 s | 3.80 | 3.54 | 3.75 | 1.25 | 3.40 | 3.45 | 0.86 | | 1980 s | 3.27 | 3.87 | 3.24 | 1.58 | 3.06 | 0.84 | | 2010 s | 2.93 | 3.41 | 2.93 | 1.14 | 2.75 | 0.65 | | 水面率 (WSR) | 1960 s | 6.10 | 18.86 | 10.63 | 5.53 | 8.18 | 5.62 | - | | 1980 s | 5.59 | 17.47 | 9.88 | 5.60 | 6.54 | - | | 2010 s | 4.66 | 15.20 | 8.76 | 7.52 | 5.77 | - | | 支流发育系数 (K) | 1960 s | 4.93 | 2.54 | 3.65 | 2.52 | 3.39 | 3.39 | 4.42 | | 1980 s | 4.00 | 3.07 | 2.83 | 2.74 | 2.96 | 3.04 | | 2010 s | 3.83 | 2.56 | 1.94 | 4.37 | 2.53 | 3.50 | | 干流面积长度比 (R) | 1960 s | 41.53 | 43.75 | 45.54 | 44.11 | 37.40 | - | - | | 1980 s | 42.83 | 48.22 | 47.03 | 39.96 | 34.10 | - | | 2010 s | 38.85 | 42.94 | 45.66 | 73.23 | 35.60 | - | | 盒维数 (D) | 1960 s | 1.71 | 1.68 | 1.69 | 1.32 | 1.62 | 1.40 | - | | 1980 s | 1.65 | 1.71 | 1.64 | 1.32 | 1.58 | - | | 2010 s | 1.58 | 1.65 | 1.58 | 1.27 | 1.54 | - |
|
|
|