首先，本文借鉴国内外生态系统服务评价研究的方法和某些成果，以遥感和地理信息系统为技术支撑，利用1979年、1989年、2000年和2009年Landsat TM遥感影像、地形图以及实地调查数据，结合黄河三角洲滨海湿地生态系统服务功能的划分，将研究区景观类型分为滩涂、河库沟渠、苇草地、林草地、灌草地、农田（旱田和水田）、建筑用地、盐田养殖池和盐渍化湿地等9大类。研究结果表明，1979~2009年研究区内湿地总面积呈增长趋势，由1979年的2081 km²持续增加到2009年的2123.81 km²，但增长速度呈减缓趋势；1979~2009年黄河三角洲滨海湿地景观类型变化不大，景观格局发生了较明显的变化。此外，本研究从自然因素和人为因素两个方面对黄河三角洲滨海湿地景观格局变化的驱动力进行了分析。结果表明，虽然黄河三角洲滨海湿地受到降水量、黄河改道以及海水侵蚀的影响，但人类活动却是其主要驱动力。

Ecosystem service function is the material basis of human survival. As a unique ecosystem, wetlands which with a strong service function play an irreplaceable role in terrestrial ecosystems. And it can provide a variety of resources. If awareness on wetland ecosystem is not sufficient and development and use of wetland resources are over-exploited, the ecological functions and benefits of wetland will be ignored, even be damaged. The wetlands of the Yellow River Delta is the world’s youngest and most unique wetlands which has caused wide spread concern of scholars from various countries. This paper conducted a scientific and comprehensive assessment on the ecosystem services of the Yellow River Delta coastal wetland. It can provide not only data for monitoring and research but also reliable and scientific evidence for the planning and development of wetland in order to ensure the sustainable use of wetland and its resources.

    First, this paper learn from the methods and some results of evaluation studies of ecosystem services and regards the remote sensing and the geographic information system as the main technological means. Combining 4 times Landsat TM data of 1979, 1989, 2000 and 2009 with topographic maps and field survey, the landscape types of study area are divided into 9 categories. They are beaches, river and ditch, reed-grassland, forest-grassland, bush-grassland and farmland (dry land and paddy field), building land, saltern-culture pone and salinized wetland. Then the paper analyzed the driving force of landscape pattern changes from two aspects of the natural and human factors. The results show that total area of wetlands from 1979 to 2009 showed a rising trend from 2081 km² to 2123.81 km², but the growth rate was slow. Landscape types of study area have a little change, while the landscape pattern is with an obvious change.

    Second, according to the evaluation principles of the wetland ecosystem in the region, the dominant ecosystem services are selected and classified. The Yellow River Delta coastal wetland ecosystem service function is divided into 4 major functions and 11 sub-functions. They are product features (food production, supply of raw materials, formed continent and water supply), the adjustment functions ( water storage and flood regulation, water purification, soil carbon sequestration and air conditioning), biodiversity maintenance function (habitat function) and civic functions (education, research and recreation). Prices and costs, expenses method, substitution method, evaluation method of afforestation cost method, shadow project method and the ecological value method are used for estimating the value. The results showed that a total ecosystem services value of the study area in 2009 was 10.397 billion Yuan. The highest magnitude of ecosystem service value is entertainment feature which is 2.947billion Yuan, followed by the function of water supply, water storage and habitant functions. The magnitudes of value of them are 1.378 billion Yuan, 1.35 billion Yuan and 1.124 billion Yuan, respectively. The function of formed continent and raw material supply provide the smallest percentage. Per unit area (km²) of ecosystem service value in 2009 is 4.8955 million Yuan. The soil carbon sequestration function which rarely assessed by other researchers also has a higher value; the magnitude of value is 866 million Yuan, 8.33% of the total value of service function.

    Again, based on the analysis of landscape pattern in the text and the ecosystem service value in 2009, a total value of ecosystem in 1979, 1989 and 2000 are calculated corresponding to a variety of landscape types. They are 13.184 billion Yuan, 11.796 billion Yuan and 12.059 billion Yuan, respectively. We found that the ecosystem service value and the change in area is not entirely consistent. The final spatial distributions of ecosystem service value and per unit area value are generated by the support of ArcGIS software.

    Finally, Combined the results of landscape pattern analysis of coastal wetlands in the Yellow River Delta with the material quality and the magnitude value of ecosystem service functions, this study proposed a series of conservation and protection strategies to speed up the recovery and reconstruction of wetland vegetation, regulation and storage of water resources, water pollution monitoring and government control of the Yellow River estuary area. Then, in view of existing health and management status, this paper proposed a multi-object optimum management mode for economy, resource and environment in the Yellow River Delta wetland.