利用遥感和GIS技术，制作了海河流域1980年、1990年、2000年和2007年4期湿地分布图，分析了湿地格局变化 过程与区域气候变化以及人类活动的影响。结果表明：（1）流域内天然湿地面积萎缩趋势明显，由1980年的5360 km2降 至2007年的4331 km2；人工湿地面积先增加后减小，由1980年的3492 km2增至1990年的5245 km2，之后逐渐减小，至2007 年降为4499 km2；（2）平原区湿地面积先增加后减少，其主要影响因素为农用湿地的变化。山区湿地面积呈递减趋势， 主要受河流湿地和河流洪泛湿地面积递减的影响；（3）在流域水资源三级区尺度，子牙河下游平原河流湿地和北三河下 游平原农用湿地是平原区变化最为剧烈的天然和人工湿地，永定河、子牙河及大清河上游山区河流湿地及河流洪泛湿地 是山区变化最为剧烈的天然湿地，而永定河、北三河及大清河山区水库/库区湿地分别是山区变化最为剧烈的人工湿地； （4）1980年，流域内河流湿地面积分布最广，之后河流湿地逐渐萎缩，而农用湿地、水库/库区湿地、海水养殖场/盐田 和浅海水域湿地面积逐渐增加；（5）受气候变化和人类活动影响，湿地格局呈斑块破碎化和空间分布均匀化与孤立化的 演变趋势。其中，气温升高是主要的自然影响因素，总人口变化和粮食生产是主要的人类活动影响因素。

Four phases of wetland thematic maps for 1980, 1990, 2000, and 2007 were mapped fromLandsat MSS/TM/ ETM+ remote sensing images. The wetland landscape pattern changing, the regional climate changing, and the human activities’ impact were analyzed. We concluded that: (1) The shrinking trend of the natural wetlands is significant, with total area decreasing from 5360 km2 to 4331 km2 within the period from 1980 to 2007. The man-made wetland areas increasing from 3492 km2 to 5245 km2 within the period from 1980 to 1990, and then decreasing to 4499 km2 in 2007; (2) The plains wetlands spread firstly and then shrank along with the changes in agricultural wetlands .The mountain wetland areas have shrunk gradually mainly because of the decreasing of rivers and river flood plains; (3) In the Grade Ⅲ water resources regions , the rivers and agricultural wetlands of the downstream plains of the Ziyahe River and the Beisanhe River are the most dramatically changed wetland types in the natural and man-made wetlands in the plain area of the Basin. The rivers and river flood plains in the mountain areas of the Yongdinghe River, the Ziyahe River, the Daqinghe River are the mostly changed natural wetlands, and the reservoirs in the mountain areas of the Yongdinghe River, the Beisanhe River and the Daqinghe River are the mostly changed man-made wetlands; (4) Until 1980, the rivers wetlands have been found distributed, widely and afterwards reducing, comparing with the spreading of the other wetland types such as agricultural, reservoirs, marine aquaculture fields and brine pans as well as the shallow waters; (5) Influenced by the climate changes and human activities, the wetland landscape patches are becoming fragmented, and their spatial distribution is becoming homogenized and isolated. Among the influences mentioned above, temperature is the main natural factor that influences the wetland changes, and total population changes and food production are the main human activity factors.