To the main ecological function of Xianghai Wetland------waterfowlconservation, two kinds indicators are selected. They are indicators of ecological importance and fragility of environment.
针对向海湿地的主要生态功能——生物多样性保护，本文选择了两类评价指标：生态重要性指标和环境脆弱性指标。
参考来源 - 向海湿地生态安全评价及恢复研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Zalong and Xianghai national nature protection zone in Song-Nen plain is most integrated wetland ecosystem in the mid temperate zone of China.
松嫩平原扎龙、向海国家级自然保护区是我国中温带最完整的湿地生态系统。
With the application of RS and GIS techniques, the variation of landscapes pattern and the gradient distribution of wetland in Xianghai Nature Reserve in different ages were analyzed.
应用遥感和地理信息系统技术，对向海自然保护区不同年代景观格局特征，及其重要湿地景观梯度分布特征进行深入的分析。
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