AI Article Synopsis
- This paper introduces the Grid Landscape Contrast Index, aiming to enhance environmental planning by analyzing non-point source pollution and its management.
- It utilizes high-resolution remote sensing images to identify the spatial distribution of nitrogen and phosphorus pollution in the Jiulongjiang Estuary.
- Findings indicate a significant area classified as a "source" of pollution (534.42 km²) is primarily on Xiamen Island, whereas the "sink" area (172.06 km²) is found in the southwest part of the island, with pollution intensity decreasing as the distance from the sea increases.
Article Abstract
With the purpose of providing scientific basis for environmental planning about non-point source pollution prevention and control, and improving the pollution regulating efficiency, this paper established the Grid Landscape Contrast Index based on Location-weighted Landscape Contrast Index according to the "source-sink" theory. The spatial distribution of non-point source pollution caused by Jiulongjiang Estuary could be worked out by utilizing high resolution remote sensing images. The results showed that, the area of "source" of nitrogen and phosphorus in Jiulongjiang Estuary was 534.42 km(2) in 2008, and the "sink" was 172.06 km(2). The "source" of non-point source pollution was distributed mainly over Xiamen island, most of Haicang, east of Jiaomei and river bank of Gangwei and Shima; and the "sink" was distributed over southwest of Xiamen island and west of Shima. Generally speaking, the intensity of "source" gets weaker along with the distance from the seas boundary increase, while "sink" gets stronger.
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| http://dx.doi.org/10.1016/j.envpol.2013.07.006 | DOI Listing |
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