【正文】 ....................................................135 土地平整工程 ........................................15 一般規(guī)定 .................................................................................15 原則 ..................................................................................15iii 耕作田塊布置 ..................................................................15 平整度 ..............................................................................16 田面坡度 ..........................................................................16 土地平整單元 ..................................................................16 耕作田塊修筑工程 .................................................................16 耕作田塊規(guī)格 ..................................................................16 格田 ..................................................................................18 梯田 ..................................................................................18 耕作層地力保持工程 .............................................................21 客土覆蓋 ..........................................................................21 田塊表土保護(hù) ..................................................................21 耕層土壤質(zhì)地改良 ..........................................................216 灌溉與排水工程 ......................................23 一般規(guī)定 .................................................................................23 灌溉標(biāo)準(zhǔn) ..........................................................................23 灌溉水質(zhì) ..........................................................................26 灌溉水利用系數(shù) ..............................................................26 工程等別和工程標(biāo)準(zhǔn) ......................................................27 水源工程 .................................................................................28 塘庫工程 ..........................................................................28 小型攔河壩(閘) ...............................................................32 機(jī)（電）井工程 ..............................................................33 雨水集蓄工程 ..................................................................38 輸水工程 .................................................................................41 明渠 ..................................................................................41 管道輸水 ..........................................................................45 地面灌溉 ..........................................................................47 噴微灌工程 .............................................................................47 噴灌工程 ..........................................................................47 微灌工程 ..........................................................................50 排水工程 ................................................................................51iv 明溝排水 ..........................................................................51 暗管排水 ..........................................................................55 渠系建筑物工程 .....................................................................56 水閘 ..................................................................................56 渡槽 ..................................................................................57 倒虹吸 ..............................................................................58 跌水、陡坡 ......................................................................59 量水設(shè)施 ..........................................................................60 泵站及輸配電工程 .................................................................61 泵站 ..................................................................................61 輸電線路 ..........................................................................63 配電裝置 .........................................................................707 田間道路工程 .......................................71 一般規(guī)定 .................................................................................71 道路功能與分級(jí) ..............................................................71 田間道路工程布置原則 .................................................71 田間道路布置標(biāo)準(zhǔn) ..........................................................71 田間道路密度指標(biāo) ..........................................................73 田間道路工程建設(shè)要求 .........................................................73 道路規(guī)劃 .........................................................................73 道路線路布置 ..................................................................74 路面 .................................................................................75 改建道路 ..........................................................................77 路基 ..................................................................................77 農(nóng)橋 ..................................................................................79 涵洞 ..................................................................................808 農(nóng)田防護(hù)與生態(tài)環(huán)境保護(hù)工程 ..........................81 岸坡防護(hù)工程 .........................................................................81 堤防工程 ..........................................................................81 堤岸防護(hù) ..........................................................................86v 坡面防護(hù)工程 .........................................................................87 攔水溝埂 ..........................................................................87 截流溝 ..............................................................................87 水平溝 ..............................................................................88 水平階 ..............................................................................88 擋土墻 ..............................................................................88 溝道治理工程 .........................................................................89 溝頭防護(hù)工程 ..................................................................89 谷坊工程 ..........................................................................89 溝道