【正文】 I牧羊河沿岸侯家營至馬軍段濕地生態(tài)建設(shè)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(jù) .............................................................................................................................................1 編制原則 .............................................................................................................................................3 編制范圍 .............................................................................................................................................4 主要結(jié)論和建議 .................................................................................................................................42 項目背景及必要性 ...................................................................................................................................5 項目背景 .............................................................................................................................................5 項目建設(shè)的必要性 .............................................................................................................................7 項目建設(shè)意義 .....................................................................................................................................83 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(jīng)濟概況 ...........................................................................................................14 項目實施地點概況 ...........................................................................................................................154 建設(shè)目標及范圍 .....................................................................................................................................17 建設(shè)目標 ...........................................................................................................................................17 建設(shè)范圍 ...........................................................................................................................................17 水量設(shè)計 ...........................................................................................................................................17 進水、出水水質(zhì)確定 .......................................................................................................................18 進水水質(zhì)確定 ...........................................................................................................................18 出水水質(zhì)確定 ...........................................................................................................................185 工藝方案選擇論證 .................................................................................................................................20 生態(tài)濕地建設(shè)步驟 ...........................................................................................................................20 生態(tài)濕地恢復(fù)技術(shù) ...........................................................................................................................21 濕地生境恢復(fù) ...........................................................................................................................21 濕地生物恢復(fù)技術(shù) ...................................................................................................................21 生態(tài)系統(tǒng)結(jié)構(gòu)與功能恢復(fù)技術(shù) ...............................................................................................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 ...........................................................................................................................266 項目設(shè)計 .................................................................................................................................................27 內(nèi)容和規(guī)模 .......................................................................................................................................27 工藝設(shè)計 ...........................................................................................................................................28 分項工程設(shè)計 ...................................................................................................................................29 河口污物攔截清除系統(tǒng) ...........................................................................................................29 攔水壩 .......................................................................................................................................35 沉砂池 .......................................................................................................................................36 生態(tài)濕地 ...................................................................................................................................36 生態(tài)林帶 ................................................................................