【正文】 開縣天鑫水電站工程環(huán)境影響報告書重慶渝佳環(huán)境影響評價有限公司 I 天鑫水電站工程環(huán)境影響報告書開縣天鑫水電站工程環(huán)境影響報告書重慶渝佳環(huán)境影響評價有限公司 II 目 錄前 言 ...............................................................................................11 總則 ..............................................................................................3 項目由來 .......................................................................................................................3 編制依據(jù) .......................................................................................................................3 評價總體構(gòu)思 ...............................................................................................................8 評價等級及評價范圍 ..................................................................................................8 評價目的及評價重點 ..................................................................................................9 評價原則及評價時段 ................................................................................................10 評價標準 ....................................................................................................................10 主要環(huán)境敏感點及保護目標 ...................................................................................132 區(qū)域環(huán)境概況 ..............................................................................15 地理位置 ....................................................................................................................15 地形、地質(zhì)、地貌 ....................................................................................................15 工程地質(zhì)條件 ............................................................................................................17 水文 .............................................................................................................................19 氣象 .............................................................................................................................21 旅游資源 ....................................................................................................................22 礦產(chǎn)資源 ....................................................................................................................22 土壤 .............................................................................................................................23 社會經(jīng)濟環(huán)境概況 ....................................................................................................23 環(huán)境質(zhì)量現(xiàn)狀 ..........................................................................................................233 項目概況 .....................................................................................31 項目基本情況 ............................................................................................................31 工程等級及標準 ........................................................................................................31 工程布置與主要建筑物 ...........................................................................................32 建筑原輔材料及棄渣場 ...........................................................................................34開縣天鑫水電站工程環(huán)境影響報告書重慶渝佳環(huán)境影響評價有限公司 III 施工期供水、供電及供風(fēng) .......................................................................................36 工程占地、淹沒、及移民安置 ...............................................................................36 施工場地條件及交通 ................................................................................................37 施工總布置 ................................................................................................................37 施工導(dǎo)流 ....................................................................................................................39 工程特性 ..................................................................................................................394 工程分析 .....................................................................................44 與產(chǎn)業(yè)政策符合性及相關(guān)規(guī)劃協(xié)調(diào)性分析 ..........................................................44 工程選址合理性分析 ................................................................................................46 工程施工分析 ............................................................................................................49 施工期環(huán)境影響分析 ................................................................................................51 營運期環(huán)境影響分析 ................................................................................................55 污染物排放統(tǒng)計 ........................................................................................................565 環(huán)境影響識別 ..............................................................................58 環(huán)境影響因素識別 ....................................................................................................58 主要環(huán)境影響問題識別 ...........................................................................................59 環(huán)境影響因子識別 ....................................................................................................59 評價因子篩選 ............................................................................................................616 生態(tài)環(huán)境影響評價 .......................................................................63 對水文情勢的影響分析 ...........................................................................................63 泥砂淤積影響分析 ....................................................................................................64 對滿月河水質(zhì)的影響分析 .......................................................................................65 河流減水段影響評價 ................................................................................................65 對陸生動植物的影響分析 .......................................................................................68 引水隧洞施工對上部生態(tài)環(huán)境影響 .......................................................................68 對雪寶山自然保護區(qū)的