文档介绍：
环渤海陆源水污染输出分区研究
康敏捷,栾维新,王辉,赵冰茹
(大连海事大学交通运输管理学院,辽宁大连 116026)
摘要:为了解决陆源水污染影响海洋环境的空间界定问题,提出了层级嵌套的多尺度陆源水
污染输出分区方法,应用 Arc Hydro Tools 结合 30 m 水平分辨率 DEM 数据与矢量河网数据
完成了环渤海地区多尺度的陆源水污染输出分区。结果显示:基于已知河网的流域提取方法
结合高分辨率 DEM 数据能够很好地解决平原地区河网提取及流域提取的问题;流域分区单
元覆盖了陆源水污染来源的主要空间范围,决定了陆源水污染影响海洋环境的重点位置;近
岸区域也是陆源水污染影响海洋环境的重要区域,通过将近岸区域划分为多尺度的流域分区
单元及岸线分区单元,近岸陆源水污染影响海洋环境的核心位置逐步明确;多尺度的流域分
区单元和岸线分区单元具有层级嵌套的边界关系。
关键词:地图学与地理信息系统;渤海;水环境污染;陆海统筹;Arc Hydro Tools
中图分类号:
Output partition of land-origin water pollution in Bohai Rim
Kang Minjie, Luan Weixin, Wang Hui, Zhao Bingru
(Transportation Management College, Dalian Maritime University, Dalian, Liaoning 116026,
China)
Abstract:The purpose of this paper was to solve the spatial partition problem that land-origin water
pollution affects the marine environment. A nested hierarchy and multi-scale output partition method
was employed for analyzing land-origin water pollution. A multi-scale output partition of land-origin
water pollution in Bohai Rim was plished by Arc Hydro Tools with 30 m horizontal resolution
DEM data and vector stream data. Results show that drainage extraction based on known streams with
high resolution DEM data could solve the extraction problems in flat areas. Watershed partition units
covered most space of land-origin water pollution sources that could determine the key positions where
land-origin water pollut