饮水安全水厂水资源论证报告

PAGE4.2可供水量计算4.2.1来水量分析4.2.2.1取水口断面地表水径流计算根据取水水源可知，本次涉及的XX县饮水安全XX等13处水厂的取水水源除枫木桥水厂及花明楼水厂（部分）为地下水外，其余均为地表水。取水水源为地表水的11处水厂及花明楼水厂取水水源地表水部分的取水口断面径流采用各水厂所在流域或下垫面条件相似的临近流域的参证站1961年至2013年的径流资料，采用面积比修正，按下式计算取水口位置的径流量：Wp=式中：Wp——取水口断面年径流量；Fp——取水口断面以上流域面积，km2F参证站——参证站以上流域面积，km2W参证站——参证站年径流量。取水口断面不同频率天然年径流量见表4.2-1。表4.2-1取水口断面不同频率天然年径流量表序号水厂名称取水口断面以上流域面积（km2）不同频率天然年径流量（104m3）参证站20%50%75%90%95%1沙田1.093.073.960.650.244.9黄材水库2沩山6.95646.5513.7421.4349.2311.7黄材水库3资福40132763.825641.220726.616951.714886.1石坝子4花明楼19114123.211164.19101.67487.66590.8靳江5龙田3.9362.8288.3236.5196.0174.9黄材水库6黄材240.822400.017800.014600.012100.010800.0黄材水库7XX21.41990.71581.91297.51075.3959.8黄材水库8灰汤217.517770.913907.611242.09194.58074.2石坝子9巷子口0.983.766.554.645.240.4黄材水库10洞庭桥8.32(外引24.7）2697.92111.41706.71395.91225.8石坝子11田坪49.74137.93283.32698.62226.41979.0流沙河12双凫铺108677823.962383.951622.743044.938418.1XX(二)4.2.2.2取水口地下水资源计算（1）地下水类型县境按地下水赋存条件、含水介质性质、水理性质及水动力特征，划分为四种类型和六种亚类。各类地下水的富水等级划分标准分别以单位出水量或泉水流量划分为水量丰富、水量中等、水量贫乏三个级别，见表4.2-2。表4.2-2地下水类型及富水性分级地下水类型富水性含水层位分布范围及面积类亚类松散岩类孔隙潜水孔隙承压水水量中等，单井出水量100-1000m3/d；水量贫乏单井出水量100m3/dQh、Qp沩水及其支流鸟江及靳江流域沿岸面积1050km2碎屑岩类孔隙裂隙水水量中等，单井出水量100-1000m3/d；水量贫乏，单井出水量100m3/dE-K主要分布XX县城~菁华铺一带面积338.33km2碳酸盐岩裂隙溶洞水覆盖岩溶区水量丰富，单井出水量1000m3/d；水量中等，单井出水量100-1000m3/dC-P灰岩及云质灰岩中部煤炭坝、南部花明楼及西部崔坪面积124.49km2基岩裂隙水浅变质岩风化裂隙水水量贫乏泉水流量0.1L/sS-P各类浅变质岩主要分布在南坪、黄材XX南等地面积346.12km2基岩裂隙水火成岩风化裂隙水水量贫乏泉水流量0.1L/sT西南部沩山、巷子口老粮仓等地，面积646.78km2砂页岩风化裂隙水水量贫乏泉水流量0.1L/sJ-D各层中之砂、页岩成条带状分布在东湖塘、偕乐桥、双凫铺等地面积397.74km2本次涉及13处水厂中仅枫木桥水厂及花明楼水厂（部分）的取水水源为地下水。根据XX县地势地貌自西南至东北由山地经丘陵、岗地向平原过渡的特点，并结合地下水类型的组合展布特征，枫木桥水厂取水水源类型主要为松散岩类孔隙水，花明楼水厂地下水取水水源主要为碳酸盐岩类裂隙溶洞水。（2）计算方法和计算参数的确定松散岩类孔隙水和碳酸盐岩类裂隙水其地下水总补给量包括降雨入渗补给和稻田水入渗补给，地下水可开采量包括已布钻孔（井）的可开采量、泉水可开采量和采用平均布井法计算的可开采量。1）大气降水入渗补给量计算公式为：其中：Q0——平水年陆面降水入渗补给量（m3/d）；Qk、Qp、Qf——平水年中枯、中、丰水期入渗补给量（m3/d）；αk、αp、αf——平水年中枯、中、丰水期降水入渗系数；Ak、Ap、Af——平水年中枯、中、丰水期降水量（mm）；FL——含水岩层陆面面积（km2）。相关参数的取值参考《XX省XX县区域水文地质调查报告》。2）稻田水入渗补给量计算公式为：其中：Q田——稻田水入渗补给量（m3/d）；Q浸——稻田水浸水期入渗补给量（m3/d）；Q非浸——非浸水期补给量，同降雨量补给计算方法（m3/d）；Ak、Ap、Af——平水年中枯、中、丰水期降水量（mm）；β——灌溉回归深度（mm/d），根据长沙市农科院成果取1.648mm/d；Δt——稻田浸水时间（d），根据省农科院成果，丰水期71d，平水期112d；F田——稻田面积，根据《XX县统计年鉴(2013)》取值。3）已布钻孔（井）可开采量分别按水动力学法和经验公式法根据抽水试验资料按未来生产井井径换算未来生产井的可开采量。计算公式为：（承压完整井）（无压完整井）（承压完整井）（无压完整井）（承压转无压完整井）其中：Q——单孔可开采量（m3/d）；K——渗透系数（m/d），由抽水试验取降深平均值；M——承压含水层厚度（m）；；H——无压（或承压转无压）水头高度（m）；S——设计将深（m），用经验公式法求得；r——钻孔半径（m）；R——设计降深下的影响半径（m）。相关参数的取值参考《XX省XX县区域水文地质调查报告》。4）泉水允许开采量计算公式为：其中：Q——期可开采量（m3/d）；Qc——实际流量（m3/d）；EY——泉水流量的月变化系数；Eq——泉水流量的期变化系数。相关参数的取值参考《XX省XX县区域水文地质调查报告》。5）平均布井法拟布钻孔可开采量计算公式为：其中：Q——计算段的期可开采量（m3/d）；Qd——设计单井的期储水量（m3/d）；n——拟布孔数；F——计算段的面积（km2）；R——单井引用影响半径（m）。相关参数的取值参考《XX省XX县区域水文地质调查报告》。（3）计算结果1）天然补给量枫木桥水厂天然补给量年均值为1101.5m3/d，枯水期435.4m3/d，平水期1150.8m3/d，丰水期1440.5m3/d。花明楼水厂天然补给量年均值为497.7m3/d，枯水期164.8m3/d，平水期521.7m3/d，丰水期661.3m3/d。2）已布钻孔（井）可开采量枫木桥水厂已布钻孔（井）及生产井可开采量年均值为81.0m3/d。花明楼水厂已布钻孔（井）及生产井可开采量年均值为27.1m3/d。3）泉水允许开采量枫木桥水厂泉水可开采量总计为0.3m3/d。花明楼水厂泉水可开采量总计为0.2m3/d。4）拟布钻孔可开采量枫木桥水厂松散岩类孔隙水地段年均可开采量合计27.9m3/d。花明楼水厂松散岩类孔隙水地段年均可开采量合计136.9m3/d。枫木桥水厂地下水总补给资源量为1101.5m3/d，可开采资源量为109.2m3/d。花明楼水厂地下水总补给资源量为497.7m3/d，可开采资源量为146.1m3/d。4.2.2用水量分析4.2.2.1取水项目取水量计算根据XX县饮水安全XX等13处水厂对供水量的要求及取用水的合理性分析，取水情况见表4.2-3、表4.2-4及表4.2-5。表4.2-3XX县饮水安全XX等13处水厂年取水量序号水厂名称取水量（m3/d）取水量（m3/d）2013年2020年1沙田871.21089.02沩山936.5980.13资福1524.62178.04枫木桥1027.81089.05花明楼1682.92799.56龙田982.61344.57黄材2666.04576.68XX1578.42630.79灰汤1089.08712.010巷子口980.11633.511洞庭桥1252.45357.912田坪1524.65445.013双凫铺2286.93148.3合计18403.040984.1表4.2-4XX县饮水安全XX等13处水厂现状水平年（2013年）取水量年内分配表单位：万m³序号水厂名称一月二月三月四月五月六月七月八月九月十月十一月十二月合计1沙田2.702.442.702.612.702.612.702.702.612.702.612.7031.82沩山2.902.622.902.812.902.812.902.902.812.902.812.9034.23资福4.734.274.734.574.734.574.734.734.574.734.574.7355.64枫木桥3.192.883.193.083.193.083.193.193.083.193.083.1937.55花明楼5.224.715.225.055.225.055.225.225.055.225.055.2261.46龙田3.052.753.052.953.052.953.053.052.953.052.953.0535.97黄材8.267.468.268.008.268.008.268.268.008.268.008.2697.38XX4.894.424.894.744.894.744.894.894.744.894.744.8957.69灰汤3.383.053.383.273.383.273.383.383.273.383.273.3839.710巷子口3.042.743.042.943.042.943.043.042.943.042.943.0435.811洞庭桥3.883.513.883.763.883.763.883.883.763.883.763.8845.712田坪4.734.274.734.574.734.574.734.734.574.734.574.7355.613双凫铺7.096.407.096.867.096.867.097.096.867.096.867.0983.5合计57.0551.5357.0555.2157.0555.2157.0557.0555.2157.0555.2157.05671.7

表4.2-5XX县饮水安全XX等13处水厂规划水平年（2020年）取水量年内分配表单位：万m³序号水厂名称一月二月三月四月五月六月七月八月九月十月十一月十二月合计1沙田3.383.163.383.273.383.273.383.383.273.383.273.3839.92沩山3.042.843.042.943.042.943.043.042.943.042.943.0435.93资福6.756.326.756.536.756.536.756.756.536.756.536.7579.74枫木桥3.383.163.383.273.383.273.383.383.273.383.273.3839.95花明楼8.688.128.688.408.688.408.688.688.408.688.408.68102.56龙田4.173.904.174.034.174.034.174.174.034.174.034.1749.27黄材14.1913.2714.1913.7314.1913.7314.1914.1913.7314.1913.7314.19167.58XX8.167.638.167.898.167.898.168.167.898.167.898.1696.39灰汤27.0125.2627.0126.1427.0126.1427.0127.0126.1427.0126.1427.01318.910巷子口5.064.745.064.905.064.905.065.064.905.064.905.0659.811洞庭桥16.6115.5416.6116.0716.6116.0716.6116.6116.0716.6116.0716.61196.112田坪16.8815.7916.8816.3416.8816.3416.8816.8816.3416.8816.3416.88199.313双凫铺9.769.139.769.449.769.449.769.769.449.769.449.76115.2合计127.05118.85127.05122.95127.05122.95127.05127.05122.95127.05122.95127.051500.04.2.2.2取水口断面以上流域用水量计算根据2013年《XX县统计年鉴资料》及长沙理工大学2015年编制的《水资源综合规划》统计数据，整理得到取水口以上流域2013年现状工、农业及城镇生活用水量，再结合我县中长期发展规划，对取水口以上流域，近期及远景用水规划进行分析计算，得到各项用水情况。（1）生活用水量计算居民生活用水定额根据《长沙市用水定额(DB43/T807-2013)》和历年《水资源统计公报》XX实际生活用水量以及相关规划综合确定，管网漏失率随着城市给水管网的优化改造和节水措施，城镇供水管网漏失率将逐渐降低，通过综合比较分析，XX居民用水定额县城最高，乡镇次之，农村最低，本次供水范围内乡镇、农村最高日居民生活用水定额分别按照110L/(人·d)、90L/(人·d)计算。根据XX县现状调查及总体规划，XX等13处水厂取水口以上流域现状水平年（2013年）及规划水平年（2020年）居民生活用水量见下表4.2-6、表4.2-7及表4.2-8，同时考虑90%的普及率。表4.2-6XX县XX等13处水厂取水口以上流域居民生活用水量单位：万m3/年序号水厂名称2013年2020年城镇生活用水农村生活用水生活用水合计城镇生活用水农村生活用水生活用水合计1沙田0.440.420.860.610.491.102沩山1.651.583.222.271.844.113资福180.18189.01369.19272.10220.56492.654枫木桥0.690.661.350.950.771.725花明楼65.0083.18148.18119.7597.07216.816龙田1.411.352.761.941.573.517黄材86.6382.88169.52119.3296.72216.058XX10.6110.1620.7714.6211.8526.479灰汤113.93109.00222.93156.92127.21284.1310巷子口0.420.400.820.580.471.0511洞庭桥15.9015.2131.1021.8917.7539.6412田坪19.1318.3037.4326.3521.3647.7113双凫铺458.57438.75897.33631.63512.031143.67合计954.54950.901905.471368.931109.702478.63表4.2-7XX县饮水安全XX等13处水厂取水口以上流域现状水平年（2013年）居民生活用水量年内分配表单位：万m³序号水厂名称一月二月三月四月五月六月七月八月九月十月十一月十二月合计1沙田0.070.070.070.070.070.070.070.070.070.070.070.070.862沩山0.270.250.270.270.270.270.270.270.270.270.270.273.223资福31.3628.3231.3630.3431.3630.3431.3631.3630.3431.3630.3431.36369.194枫木桥0.110.100.110.110.110.110.110.110.110.110.110.111.355花明楼12.5911.3712.5912.1812.5912.1812.5912.5912.1812.5912.1812.59148.186龙田0.230.210.230.230.230.230.230.230.230.230.230.232.767黄材14.4013.0014.4013.9314.4013.9314.4014.4013.9314.4013.9314.40169.528XX1.761.591.761.711.761.711.761.761.711.761.711.7620.779灰汤18.9317.1018.9318.3218.9318.3218.9318.9318.3218.9318.3218.93222.9310巷子口0.070.060.070.070.070.070.070.070.070.070.070.070.8211洞庭桥2.642.392.642.562.642.562.642.642.562.642.562.6431.1012田坪3.182.873.183.083.183.083.183.183.083.183.083.1837.4313双凫铺76.2168.8476.2173.7576.2173.7576.2176.2173.7576.2173.7576.21897.33合计161.83146.17161.83156.61161.83156.61161.83161.83156.61161.83156.61161.831905.47表4.2-8XX县饮水安全XX等13处水厂取水口以上流域规划水平年（2020年）居民生活用水量年内分配表单位：万m³序号水厂名称一月二月三月四月五月六月七月八月九月十月十一月十二月合计1沙田0.090.090.090.090.090.090.090.090.090.090.090.091.102沩山0.350.330.350.340.350.340.350.350.340.350.340.354.113资福41.7339.0441.7340.3841.7340.3841.7341.7340.3841.7340.3841.73492.654枫木桥0.150.140.150.140.150.140.150.150.140.150.140.151.725花明楼18.3617.1818.3617.7718.3617.7718.3618.3617.7718.3617.7718.36216.816龙田0.300.280.300.290.300.290.300.300.290.300.290.303.517黄材18.3017.1218.3017.7118.3017.7118.3018.3017.7118.3017.7118.30216.058XX2.242.102.242.172.242.172.242.242.172.242.172.2426.479灰汤24.0722.5124.0723.2924.0723.2924.0724.0723.2924.0723.2924.07284.1310巷子口0.090.080.090.090.090.090.090.090.090.090.090.091.0511洞庭桥3.363.143.363.253.363.253.363.363.253.363.253.3639.6412田坪4.043.784.043.914.043.914.044.043.914.043.914.0447.7113双凫铺96.8790.6296.8793.7496.8793.7496.8796.8793.7496.8793.7496.871143.67合计209.94196.39209.94203.17209.94203.17209.94209.94203.17209.94203.17209.942478.63（2）工业、建筑业及三产业用水XX县境内工业、建筑业及三产业用水定额根据《长沙市用水定额(DB43/T807-2013)》、《XX国民经济统计公报》和《水资源统计公报》等综合确定。XX现状年万元工业增加值用水定额为32m3/万元，建筑业万元增加值定额7m3/万元，万元三产业增加值定额10m3/万元。现状年万元工业增加值用水定额较低（长沙平均为42m3/万元），主要是由于受水资源的限制，XX近年来引入的工业企业主要为非耗水企业所致，结合XX水资源实际情况和长沙市两型社会建设指标体系目标值，确定规划水平年XX万元工业增加值用水定额28m3/万元，建筑业万元增加值定额定为5m3/万元，XX万元三产业增加值用水定额8m3/万元。根据XX县现状调查及总体规划，XX等13处水厂以上流域现状水平年（2013年）及规划水平年（2020年）工业、建筑业及三产业用水量见下表4.2-9、表4.2-10以及表4.2-11。表4.2-9XX县XX等13处水厂以上流域工业、建筑业及三产业用水量单位：万m3/年序号水厂名称2013年2020年工业建筑业三产业合计工业建筑业三产业合计1沙田0.770.010.200.971.010.010.781.802沩山0.760.012.443.211.010.019.5710.593资福245.072.24140.83388.13324.312.40552.15878.864枫木桥0.500.0050.380.880.660.0051.482.155花明楼299.642.7378.05380.42396.532.94306.01705.476龙田4.250.040.224.515.620.040.886.547黄材147.481.3544.33193.15195.171.44173.79370.408XX21.850.207.6129.6628.910.2129.8258.959灰汤84.670.7797.52182.96112.060.82382.36495.2410巷子口0.590.010.160.750.780.010.621.4111洞庭桥11.490.108.7320.3315.210.1134.2349.5512田坪39.200.3614.5454.1051.880.3857.02109.2813双凫铺943.218.61312.861264.681248.239.231226.592484.04合计1799.4716.42707.872523.762381.3717.602775.295174.26表4.2-10XX县饮水安全XX等13处水厂取水口以上流域现状水平年（2013年）工业、建筑业及三产业用水量年内分配表单位：万m³序号水厂名称一月二月三月四月五月六月七月八月九月十月十一月十二月合计1沙田0.080.070.080.080.080.080.080.080.080.080.080.080.972沩山0.270.250.270.260.270.260.270.270.260.270.260.273.213资福32.9629.7732.9631.9032.9631.9032.9632.9631.9032.9631.9032.96388.134枫木桥0.070.070.070.070.070.070.070.070.070.070.070.070.885花明楼32.3129.1832.3131.2732.3131.2732.3132.3131.2732.3131.2732.31380.426龙田0.380.350.380.370.380.370.380.380.370.380.370.384.517黄材16.4014.8216.4015.8816.4015.8816.4016.4015.8816.4015.8816.40193.158XX2.522.272.522.442.522.442.522.522.442.522.442.5229.669灰汤15.5414.0415.5415.0415.5415.0415.5415.5415.0415.5415.0415.54182.9610巷子口0.060.060.060.060.060.060.060.060.060.060.060.060.7511洞庭桥1.731.561.731.671.731.671.731.731.671.731.671.7320.3312田坪4.594.154.594.454.594.454.594.594.454.594.454.5954.1013双凫铺107.4197.02107.41103.95107.41103.95107.41107.41103.95107.41103.95107.411264.68合计214.35193.60214.35207.43214.35207.43214.35214.35207.43214.35207.43214.352523.76表4.2-11XX县饮水安全XX等13处水厂取水口以上流域规划水平年（2020年）工业、建筑业及三产业用水量年内分配表单位：万m³序号水厂名称一月二月三月四月五月六月七月八月九月十月十一月十二月合计1沙田0.150.140.150.150.150.150.150.150.150.150.150.151.802沩山0.900.840.900.870.900.870.900.900.870.900.870.9010.593资福74.4469.6474.4472.0474.4472.0474.4474.4472.0474.4472.0474.44878.864枫木桥0.180.170.180.180.180.180.180.180.180.180.180.182.155花明楼59.7555.9059.7557.8359.7557.8359.7559.7557.8359.7557.8359.75705.476龙田0.550.520.550.540.550.540.550.550.540.550.540.556.547黄材31.3729.3531.3730.3631.3730.3631.3731.3730.3631.3730.3631.37370.408XX4.994.674.994.834.994.834.994.994.834.994.834.9958.959灰汤41.9539.2441.9540.5941.9540.5941.9541.9540.5941.9540.5941.95495.2410巷子口0.120.110.120.120.120.120.120.120.120.120.120.121.4111洞庭桥4.203.934.204.064.204.064.204.204.064.204.064.2049.5512田坪9.268.669.268.969.268.969.269.268.969.268.969.26109.2813双凫铺210.40196.82210.40203.61210.40203.61210.40210.40203.61210.40203.61210.402484.04合计438.26409.98438.26424.12438.26424.12438.26438.26424.12438.26424.12438.265174.26（3）农业用水计算1）农业灌溉用水农业用水按农田实际灌溉面积、灌溉定额和灌溉水利用系数确定，现状2013年农田实际播种灌溉面积分单季稻、双季稻和旱地分别计算，现状年单季稻占稻谷播种面积的42%。规划水平年农田灌溉面积根据XX县总体规划和农业种植业规划，XX要保持耕地面积和播种面积的稳定势头，因此，规划水平年农田灌溉面积按现状年实际水田和旱地面积进行计算。本次计算农业用水单双季稻播种面积按低现状实际单双季稻播种面积。现状水平年灌溉定额和灌溉水利用系数按灌区相关报告确定，农作物净灌溉定额保持不变，规划水平年考虑灌区的节水改造，灌溉水利用系数将有所增加，毛灌溉定额将减少。农业用水量预测模式如下：Wau=A*Wauw/ε式中：Wau——农田灌溉毛需水量，万m3；A——灌溉耕地面积，亩；Wauw——单位面积农田灌溉水定额，万m3/亩；ε——灌溉水利用系数。XX等13处水厂以上流域现状水平年（2013年）及规划水平年（2020年）农业灌溉用水量见下表4.2-12，本次考虑90%的保证率。表4.2-12XX县XX等13处水厂以上流域农业灌溉用水量单位：万m3/年序号水厂名称2013年2020年单季稻双季稻旱作物合计单季稻双季稻旱作物合计1沙田1.00.00.31.30.90.00.31.22沩山5.20.02.17.24.80.01.96.73资福914.83175.6160.24250.6844.42932.8147.93925.24枫木桥25.228.32.255.723.326.12.151.45花明楼61.01807.085.41953.556.41670.779.01806.06龙田14.50.01.415.913.50.01.314.77黄材421.6209.9102.2733.8390.4194.794.7679.88XX7.546.18.261.97.042.77.657.49灰汤926.41383.5108.62418.5854.51276.1100.12230.710巷子口0.00.00.60.64.00.00.64.611洞庭桥176.1197.815.6389.5162.6182.614.4359.512田坪48.9425.137.0511.145.1391.834.1471.013双凫铺2316.13251.2459.06026.32141.03001.1424.45566.5合计4918.410524.6982.816430.24548.09718.5908.415174.92）畜禽养殖业用水XX畜禽主要为猪和家禽，畜禽养殖需水量根据畜禽数量和畜禽用水定额估算，根据调查统计及趋势预测法确定，得到现状水平年（2013年）及规划水平年（2020年）XX生猪出栏数及家禽出笼数。畜禽用水定额根据《长沙市用水定额(DB43/T807-2013)》和《水资源统计公报》XX实际畜禽用水量综合确定，生猪用水定额40L/头/天，出栏周期按4.5月计算，家禽用水定额2L/只/天，出笼周期按1.5月计算，XX等13处水厂以上流域畜禽养殖用水量计算结果见表4.2-13。表4.2-13XX县XX等13处水厂以上流域畜禽养殖用水量单位：万m3/年序号水厂名称2013年2020年生猪需水家禽需水畜禽合计生猪需水家禽需水畜禽合计1沙田0.180.050.230.170.060.232沩山0.940.271.210.890.301.193资福230.4665.78296.24218.1672.37290.504枫木桥0.750.210.960.710.230.945花明楼88.4825.26113.7583.7627.79111.536龙田0.470.140.610.450.150.607黄材49.5014.1363.6246.8515.5462.398XX7.892.2510.157.472.489.959灰汤109.4631.24140.71103.6134.37137.9810巷子口0.230.070.290.220.070.2911洞庭桥17.274.9322.2016.345.4221.7712田坪13.613.8817.5012.884.2717.1513双凫铺351.94100.44452.39333.13110.51443.62合计871.18248.641119.87824.64273.551098.15XX县安全饮水XX等13处水厂取水口以上流域现状水平年（2013年）及规划水平年（2020年）农业用水量为农业灌溉用水与畜禽养殖业用水之和，其年内分配表见下表4.2-14及表4.2-15，本次考虑90%的保证率。表4.2-14XX县饮水安全XX等13处水厂取水口以上流域现状水平年（2013年）农业用水量年内分配表单位：万m³序号水厂名称一月二月三月四月五月六月七月八月九月十月十一月十二月合计1沙田0.020.020.020.020.320.220.640.230.020.020.020.021.562沩山0.100.090.100.101.671.193.481.320.100.100.100.108.453资福25.1622.7325.16448.77451.66797.301112.55821.37732.0860.5524.3525.164546.834枫木桥0.080.070.083.869.029.9418.168.506.380.400.080.0856.665花明楼9.668.739.66250.86113.66370.57409.05434.14412.0729.809.359.662067.216龙田0.050.050.050.054.442.667.541.500.050.050.050.0516.547黄材5.404.885.4033.29142.60126.83288.89119.7052.027.745.235.40797.388XX0.860.780.866.995.3211.6716.5914.7511.111.380.830.8672.019灰汤11.9510.7911.95196.48357.08441.85752.17406.17319.9127.3711.5711.952559.2410巷子口0.030.020.030.020.030.090.310.310.020.030.020.030.9211洞庭桥1.891.701.8928.2664.4170.76128.3460.7445.904.091.821.89411.6912田坪1.491.341.4958.2636.3893.98119.36110.9296.196.221.441.49528.5513双凫铺38.4234.7038.42471.71891.421092.311935.231064.43761.7574.6537.1838.426478.65合计95.1185.9195.111498.672078.013019.354792.293044.082437.60212.3992.0495.1117545.68表4.2-15XX县饮水安全XX等13处水厂取水口以上流域规划水平年（2020年）农业用水量年内分配表单位：万m³序号水厂名称一月二月三月四月五月六月七月八月九月十月十一月十二月合计1沙田0.020.020.020.020.290.200.590.210.020.020.020.021.452沩山0.100.090.100.101.551.103.221.230.100.100.100.107.893资福24.6123.0224.61415.79418.37737.601028.66759.92677.4357.2923.8124.614215.714枫木桥0.080.070.083.578.339.1816.777.855.900.370.080.0852.365花明楼9.458.849.45232.43105.60343.10378.69401.88381.4728.069.149.451917.566龙田0.050.050.050.054.112.466.981.390.050.050.050.0515.357黄材5.284.945.2831.13132.34117.77267.86111.2048.507.455.115.28742.168XX0.840.790.846.534.9810.8615.4313.7210.341.320.820.8467.319灰汤11.6910.9311.69181.86330.03408.18694.44375.29295.7125.9111.3111.692368.7110巷子口0.020.020.020.021.250.772.190.510.020.020.020.024.9211洞庭桥1.841.721.8426.1959.5665.42118.5756.1742.473.881.781.84381.3012田坪1.451.361.4553.7733.6186.69110.08102.3088.735.821.411.45488.1313双凫铺37.5735.1537.57437.46825.891010.921790.27985.17705.1971.0236.3637.576010.15合计93.0187.0193.011388.911925.922794.264433.762816.862255.92201.3190.0193.0116272.99（4）生态环境用水量针对本项目的用水保证率，论证区域内的生态环境用水主要考虑河段内生态最小需水量，即维持河道内最小水深和水量，以维持河道内生物需水、蒸发和渗漏损失水量。参考国内外有关生态环境水量的计算方法，这里考虑多年平均流量的10%作为生态需水的最小基流量，即可维持河道生态需水量。4.2.3可供水量计算4.2.3.1现状水平年和规划水平年可供水量计算根据上述统计、分析数据，计算出XX县饮水安全XX等13处水厂取水口断面以上流域2013年及2020年生活用水量、工业、建筑业及三产业用水量及农业用水量，并参照《水资源公报》及长沙理工大学2015年编制的《水资源综合规划》统计数据，计算各项用回归水量。其中农村人畜用水回归系数取0.26，城镇生活用水量回归系数取0.80，工业用水回归系数取0.82，农业用水回归系数取0.46，由此计算得出XX县饮水安全XX等13处水厂取水口断面以上流域现状水平年及规划水平年耗水量及扣除耗水后的净入流量。来水资料根据各水厂对应的参证站资料按水文比拟法进行推求。由于枫木桥水厂取水的全部水源来自于地下水，只用于生活用水，本次不考虑工业、农业及生态用水量。计算成果见表4.2-16～表4.2-41。沙田水厂现状水平年（2013年）取水口断面以上流域水量供需平衡计算表(P=90%)表4.2-16单位：万m3项目一月二月三月四月五月六月七月八月九月十月十一月十二月全年来水量0.812.902.033.354.0019.2611.401.411.260.712.470.6550.25取水总量生活用水量0.070.070.070.070.070.070.070.070.070.070.070.070.86工业用水量0.080.070.080.080.080.080.080.080.080.080.080.080.97农业用水量0.020.020.020.020.320.220.640.230.020.020.020.021.56生态用水量0.120.430.300.490.592.831.680.210.180.100.360.107.39小计0.290.590.470.661.063.202.470.590.350.280.530.2710.78总用水量占来水量（%）36.4%20.2%23.4%19.8%26.5%16.6%21.7%42.0%28.2%39.3%21.6%41.8%21.5%余水0.512.321.552.682.9416.068.930.820.900.431.940.3839.46回归水量生活用水量0.040.040.040.040.040.040.040.040.040.040.040.040.46工业用水量0.070.060.070.070.070.070.070.070.070.070.070.070.80农业用水量0.010.010.010.010.150.100.290.110.010.010.010.010.72小计0.120.100.120.110.250.200.400.210.110.120.110.121.98出境水量0.632.421.672.803.2016.269.331.031.010.552.050.4941.44净耗量0.180.480.360.550.813.002.070.380.240.160.420.158.81净耗量占来水量百分比（%）22.1%16.6%17.7%16.4%20.2%15.6%18.2%27.0%19.3%23.1%17.0%23.9%17.5%沙田水厂规划水平年（2020年）取水口断面以上流域水量供需平衡计算表(P=90%)表4.2-17单位：万m3项目一月二月三月四月五月六月七月八月九月十月十一月十二月全年来水量0.812.902.033.354.0019.2611.401.411.260.712.470.6550.25取水总量生活用水量0.090.090.090.090.090.090.090.090.090.090.090.091.10工业用水量0.150.140.150.150.150.150.150.150.150.150.150.151.80农业用水量0.020.020.020.020.290.200.590.210.020.020.020.021.45生态用水量0.120.430.300.490.592.831.680.210.180.100.360.107.39小计0.380.680.560.751.133.282.510.670.440.370.620.3611.75总用水量占来水量（%）47.5%23.2%27.8%22.4%28.2%17.0%22.1%47.2%35.1%51.9%25.1%55.6%23.4%余水0.422.231.462.602.8815.988.880.750.810.341.850.2938.50回归水量生活用水量0.050.050.050.050.050.050.050.050.050.050.050.050.61工业用水量0.120.120.120.120.120.120.120.120.120.120.120.121.47农业用水量0.010.010.010.010.140.090.270.100.010.010.010.010.67小计0.190.170.190.180.310.270.450.280.180.190.180.192.76出境水量0.612.401.652.783.1916.259.331.020.990.532.030.4741.26净耗量0.200.500.380.570.823.012.060.390.260.180.440.178.99净耗量占来水量百分比（%）24.5%17.3%18.6%17.0%20.4%15.6%18.1%27.7%20.8%25.8%17.8%26.9%17.9%沩山水厂现状水平年（2013年）取水口断面以上流域水量供需平衡计算表(P=90%)表4.2-18单位：万m3项目一月二月三月四月五月六月七月八月九月十月十一月十二月全年来水量5.6220.1914.0723.2627.83133.8679.219.818.734.9617.184.51349.23取水总量生活用水量0.270.250.270.270.270.270.270.270.270.270.270.273.22工业用水量0.270.250.270.260.270.260.270.270.260.270.260.273.21农业用水量0.100.090.100.101.671.193.481.320.100.100.100.108.45生态用水量0.832.972.073.424.0919.6911.651.441.280.732.530.6651.37小计1.483.562.724.056.3121.4115.673.311.911.383.161.3166.26总用水量占来水量（%）26.3%17.6%19.3%17.4%22.7%16.0%19.8%33.8%21.9%27.8%18.4%29.1%19.0%余水4.1516.6311.3519.2121.53112.4563.536.506.823.5814.033.19282.97回归水量生活用水量0.150.130.150.140.150.140.150.150.140.150.140.151.73工业用水量0.220.200.220.220.220.220.220.220.220.220.220.222.63农业用水量0.050.040.050.050.770.551.600.610.050.050.050.053.89小计0.420.380.420.401.140.901.970.980.400.420.400.428.25出境水量4.5617.0111.7719.6122.66113.3665.507.487.224.0014.433.61291.22净耗量1.063.182.303.655.1720.5013.702.341.510.962.750.8958.01净耗量占来水量百分比（%）18.8%15.7%16.4%15.7%18.6%15.3%17.3%23.8%17.3%19.4%16.0%19.9%16.6%沩山水厂规划水平年（2020年）取水口断面以上流域水量供需平衡计算表(P=90%)表4.2-19单位：万m3项目一月二月三月四月五月六月七月八月九月十月十一月十二月全年来水量5.6220.1914.0723.2627.83133.8679.219.818.734.9617.184.51349.23取水总量生活用水量0.350.330.350.340.350.340.350.350.340.350.340.354.11工业用水量0.900.840.900.870.900.870.900.900.870.900.870.9010.59农业用水量0.100.090.100.101.551.103.221.230.100.100.100.107.89生态用水量0.832.972.073.424.0919.6911.651.441.280.732.530.6651.37小计2.174.233.424.726.8922.0016.123.922.592.073.832.0173.96总用水量占来水量（%）38.6%20.9%24.3%20.3%24.7%16.4%20.4%39.9%29.6%41.8%22.3%44.6%21.2%余水3.4515.9610.6618.5420.95111.8663.095.896.142.8813.352.50275.27回归水量生活用水量0.190.180.190.190.190.190.190.190.190.190.190.192.29工业用水量0.740.690.740.710.740.710.740.740.710.740.710.748.68农业用水量0.050.040.050.040.710.511.480.570.040.050.040.053.63小计0.980.910.980.941.641.412.411.500.940.980.940.9814.61出境水量4.4316.8711.6319.4822.59113.2765.507.397.093.8614.303.47289.87净耗量1.203.322.443.785.2520.5913.712.421.641.102.891.0359.36净耗量占来水量百分比（%）21.3%16.4%17.3%16.2%18.8%15.4%17.3%24.7%18.8%22.2%16.8%22.9%17.0%资福水厂现状水平年（2013年）取水口断面以上流域水量供需平衡计算表(P=90%)表4.2-20单位：万m3项目一月二月三月四月五月六月七月八月九月十月十一月十二月全年来水量432.271435.811642.621190.012388.493736.152713.971896.89737.40376.33218.68183.0816951.69取水总量生活用水量31.3628.3231.3630.3431.3630.3431.3631.3630.3431.3630.3431.36369.19工业用水量32.9629.7732.9631.9032.9631.9032.9632.9631.9032.9631.9032.96388.13农业用水量25.1622.7325.16448.77451.66797.301112.55821.37732.0860.5524.3525.164546.83生态用水量65.39217.18248.46180.00361.28565.13410.52286.93111.5456.9233.0827.692564.12小计154.87298.00337.94691.02877.271424.681587.391172.62905.86181.79119.67117.177868.28总用水量占来水量（%）35.8%20.8%20.6%58.1%36.7%38.1%58.5%61.8%122.8%48.3%54.7%64.0%46.4%余水277.401137.811304.67498.991511.222311.481126.58724.28-168.46194.5499.0165.909083.41回归水量生活用水量16.4314.8416.4315.9016.4315.9016.4316.4315.9016.4315.9016.43193.45工业用水量27.0324.4227.0326.1627.0326.1627.0327.0326.1627.0326.1627.03318.27农业用水量11.5710.4511.57206.44207.77366.76511.77377.83336.7527.8511.2011.572091.54小计55.0449.7155.04248.49251.23408.82555.23421.29378.8171.3153.2655.042603.27出境水量332.441187.511359.71747.481762.452720.291681.811145.57210.35265.85152.27120.9411686.68净耗量99.83248.29282.91442.52626.041015.861032.15751.32527.05110.4866.4162.145265.01净耗量占来水量百分比（%）23.1%17.3%17.2%37.2%26.2%27.2%38.0%39.6%71.5%29.4%30.4%33.9%31.1%资福水厂规划水平年（2020年）取水口断面以上流域水量供需平衡计算表(P=90%)表4.2-21单位：万m3项目一月二月三月四月五月六月七月八月九月十月十一月十二月全年来水量432.271435.811642.621190.012388.493736.152713.971896.89737.40376.33218.68183.0816951.69取水总量生活用水量41.7339.0441.7340.3841.7340.3841.7341.7340.3841.7340.3841.73492.65工业用水量74.4469.6474.4472.0474.4472.0474.4474.4472.0474.4472.0474.44878.86农业用水量24.6123.0224.61415.79418.37737.601028.66759.92677.4357.2923.8124.614215.71生态用水量65.39217.18248.46180.00361.28565.13410.52286.93111.5456.9233.0827.692564.12小计206.16348.87389.23708.21895.821415.151555.341163.01901.39230.38169.31168.468151.34总用水量占来水量（%）47.7%24.3%23.7%59.5%37.5%37.9%57.3%61.3%122.2%61.2%77.4%92.0%48.1%余水226.111086.941253.38481.801492.672321.001158.62733.88-163.99145.9549.3714.618800.35回归水量生活用水量23.2821.7823.2822.5323.2822.5323.2823.2822.5323.2822.5323.28274.90工业用水量61.0457.1061.0459.0761.0459.0761.0461.0459.0761.0459.0761.04720.66农业用水量11.3210.5911.32191.26192.45339.29473.19349.56311.6226.3510.9511.321939.22小计95.6489.4795.64272.87276.77420.90557.51433.89393.22110.6892.5695.642934.79出境水量321.751176.411349.03754.671769.442741.901716.131167.77229.23256.63141.93110.2611735.14净耗量110.51259.40293.59435.34619.05994.25997.84729.13508.17119.7076.7572.825216.55净耗量占来水量百分比（%）25.6%18.1%17.9%36.6%25.9%26.6%36.8%38.4%68.9%31.8%35.1%39.8%30.8%枫木桥水厂现状水平年（2013年）取水口断面以上流域水量供需平衡计算表(P=90%)表4.2-22单位：万m3项目一月二月三月四月五月六月七月八月九月十月十一月十二月全年来水量1.033.403.902.825.668.866.444.501.750.890.520.4340.20取水总量生活用水量0.110.100.110.110.110.110.110.110.110.110.110.111.35工业用水量0.000.000.000.000.000.000.000.000.000.000.000.000.00农业用水量0.000.000.000.000.000.000.000.000.000.000.000.000.00生态用水量0.000.000.000.000.000.000.000.000.000.000.000.000.00小计0.110.100.110.110.110.110.110.110.110.110.110.111.35总用水量占来水量（%）11.2%3.0%2.9%3.9%2.0%1.2%1.8%2.5%6.3%12.8%21.3%26.4%3.4%余水0.913.303.782.715.558.756.324.381.640.780.410.3238.85回归水量生活用水量0.060.060.060.060.060.060.060.060.060.060.060.060.72工业用水量0.000.000.000.000.000.000.000.000.000.000.000.000.00农业用水量0.000.000.000.000.000.000.000.000.000.000.000.000.00小计0.060.060.060.060.060.060.060.060.060.060.060.060.72出境水量0.973.363.842.775.618.816.384.451.700.840.470.3839.57净耗量0.050.050.050.050.050.050.050.050.050.050.050.050.63净耗量占来水量百分比（%）5.2%1.4%1.4%1.8%0.9%0.6%0.8%1.2%2.9%5.9%9.9%12.2%1.6%枫木桥水厂规划水平年（2020年）取水口断面以上流域水量供需平衡计算表(P=90%)表4.2-23单位：万m3项目一月二月三月四月五月六月七月八月九月十月十一月十二月全年来水量1.033.403.902.825.668.866.444.501.750.890.520.4340.20取水总量生活用水量0.150.140.150.140.150.140.150.150.140.150.140.151.72工业用水量0.000.000.000.000.000.000.000.000.000.000.000.000.00农业用水量0.000.000.000.000.000.000.000.000.000.000.000.000.00生态用水量0.000.000.000.000.000.000.000.000.000.000.000.000.00小计0.150.140.150.140.150.140.150.150.140.150.140.151.72总用水量占来水量（%）14.2%4.0%3.7%5.0%2.6%1.6%2.3%3.2%8.0%16.3%27.1%33.5%4.3%余水0.883.273.752.685.528.726.294.351.610.750.380.2938.48回归水量生活用水量0.080.080.080.080.080.080.080.080.080.080.080.080.96工业用水量0.000.000.000.000.000.000.000.000.000.000.000.000.00农业用水量0.000.000.000.000.000.000.000.000.000.000.000.000.00小计0.080.080.080.080.080.080.080.080.080.080.080.080.96出境水量0.963.343.832.765.608.806.374.431.690.830.460.3739.44净耗量0.060.060.060.060.060.060.060.060.060.060.060.060.76净耗量占来水量百分比（%）6.3%1.8%1.6%2.2%1.1%0.7%1.0%1.4%3.6%7.2%12.0%14.8%1.9%花明楼水厂现状水平年（2013年）取水口断面以上流域水量供需平衡计算表(P=90%)表4.2-24单位：万m3项目一月二月三月四月五月六月七月八月九月十月十一月十二月全年来水量197.40689.03728.06535.911100.351694.811159.65794.11278.47151.6294.5781.817505.80取水总量生活用水量12.5911.3712.5912.1812.5912.1812.5912.5912.1812.5912.1812.59148.18工业用水量32.3129.1832.3131.2732.3131.2732.3132.3131.2732.3131.2732.31380.42农业用水量9.668.739.66250.86113.66370.57409.05434.14412.0729.809.359.662067.21生态用水量29.36102.49108.2979.71163.67252.09172.49118.1241.4222.5514.0712.171116.41小计83.92151.76162.85374.02322.22666.10626.43597.15496.9497.2466.8666.723712.22总用水量占来水量（%）42.5%22.0%22.4%69.8%29.3%39.3%54.0%75.2%178.5%64.1%70.7%81.6%49.5%余水113.49537.27565.22161.89778.131028.71533.21196.97-218.4754.3727.7115.093793.58回归水量生活用水量6.255.656.256.056.256.056.256.256.056.256.056.2573.65工业用水量26.4923.9326.4925.6426.4925.6426.4926.4925.6426.4925.6426.49311.95农业用水量4.444.014.44115.4052.29170.46188.16199.70189.5513.714.304.44950.92小计37.1933.5937.19147.0985.03202.15220.91232.45221.2546.4635.9937.191336.51出境水量150.68570.86602.41308.98863.161230.86754.13429.422.77100.8363.7052.285130.09净耗量46.72118.17125.65226.93237.19463.95405.52364.70275.6950.7930.8729.532375.71净耗量占来水量百分比（%）23.7%17.1%17.3%42.3%21.6%27.4%35.0%45.9%99.0%33.5%32.6%36.1%31.7%花明楼水厂规划水平年（2020年）取水口断面以上流域水量供需平衡计算表(P=90%)表4.2-25单位：万m3项目一月二月三月四月五月六月七月八月九月十