【正文】 I 牧羊河沿岸侯家營至馬軍段 濕地生態(tài)建設工程 可行性研究報告 I 目 錄 1 總論 .................................................................................................................................................................. 1 項目概況 .................................................................................................................................................. 1 編 制依據 .................................................................................................................................................. 1 編制原則 .................................................................................................................................................. 3 編制范圍 .................................................................................................................................................. 4 主要結論和建議 ...................................................................................................................................... 4 2 項目背景及必要性 ......................................................................................................................................... 5 項目背景 .................................................................................................................................................. 5 項目建設的必要性 ................................................................................................................................. 7 項目建設意義 .......................................................................................................................................... 8 3 項目實施區(qū)域概況 .......................................................................................................................................10 松華壩水源區(qū)自然概況 .......................................................................................................................10 牧羊河匯水區(qū)自然概況 .......................................................................................................................12 牧羊河匯水區(qū)社會經濟概況 ...............................................................................................................14 項目實施地點概況 ...............................................................................................................................15 4 建設目標及范圍 ...........................................................................................................................................17 建設目標 ................................................................................................................................................17 建設范圍 ................................................................................................................................................17 水量設計 ................................................................................................................................................17 進水、出水水質確定 ...........................................................................................................................18 進水水質確定 ................................................................................................................................18 出水水質確定 ................................................................................................................................18 5 工藝方案選擇論證 .......................................................................................................................................20 生態(tài)濕地建設步驟 ...............................................................................................................................20 生態(tài)濕地恢復技術 ...............................................................................................................................21 濕地生境恢復 ................................................................................................................................21 濕地生物恢復技術 ........................................................................................................................21 生態(tài)系統結構與功能恢復技術 ...................................................................................................22 生態(tài)濕地工藝比選 ...............................................................................................................................22 自由表面流人工濕地 ...................................................................................................................22 潛流人工濕地方案 ........................................................................................................................23 垂直流＋自由表面 流 ...................................................................................................................24 自由表面流＋水平潛流 ...............................................................................................................25 推薦方案確定 ................................................................................................................................26 6 項目設計 .......................................................................................................................................................27 內容和規(guī)模 ............................................................................................................................................27 工藝設計 ................................................................................................................................................28 分項工程設計 ........................................................................................................................................29 河口污物攔截清除系統 ...............................................................................................................29 攔水壩 ............................................................................................................................................35 沉砂池 .............................................