An investigation of the wetland from Bohai Gulf to Laizhou Bay by GIS and Landsat-7 shows that there are many types of wetlands, such as natural wetlands and artificial wetlands. This area has a wetland area of 15 060.29 km2. Natural wetlands have an area of about 10 071.31 km2, which make up about 67% of wetlands while artificial wetlands occupy about 4 988.98 km2, which constitute about 33% of wetlands in the study area.
赵玉灵, 聂洪峰, 杨金中, 王毅. 环渤海湾-莱州湾地区湿地现状遥感调查[J]. 国土资源遥感, 2007, 19(1): 86-88.
ZHAO Yu-Ling, NIE Hong-Feng, YANG Jin-Zhong, WANG Yi. AN INVESTIGATION OF THE WETLANDS FROM BOHAI GULF TO LAIZHOU BAY. REMOTE SENSING FOR LAND & RESOURCES, 2007, 19(1): 86-88.