生态系统

• If this is a totally self - contained ecosystem
  如果这个是一个自封闭的生态系统的话
• Impacts of greenhouse effect on freshwater ecosystem
  温室效应对淡水生态系统的影响
• Reviews on ecosystem services of mangrove wetlands
  红树林生态系统服务功能研究综述
• Eco - environmental water requirement in the zhalong wetland
  扎龙湿地生态系统需水量
• Brief discussion on ecosystem restoration of urban river
  城市河流生态系统修复刍议
• Urban ecosystem health evaluation based on ahp - mf model
  模型的城市生态系统健康评价
• Relationship between urban ecosystem and economic
  城市生态系统与城市经济系统的关系
• Studying on the urban ecosystem problem of baoding
  保定城市生态系统问题探析
• Discussion on evaluation of river ecological system health
  河流生态系统健康评价初探
• Assessment of urban ecosystem health in nanchong
  南充市城市生态系统健康评价