[修订]贡河灌区规划设计书_图文

《[修订]贡河灌区规划设计书_图文》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、第一章灌区规划开发概况以及必要性与可行性分析第二章作物灌溉制度和灌水率图设计1.灌溉设计标准灌溉设计保证率釆用85%,经频率计算分析，相应的设计代表年为1971年。2.逐日耗水量计算表表2.1水稻耗水量计算表Table2.1Thewaterconsumptioncalculationtableofpaddy生育期返青分藥孕穗抽穗乳熟黄熟全生育期起止早稻25/4・5/5-1/62/6・17/6-26/627/6-6/77/7-14/725/4-14/74/516/6日期晚稻3/8・11/8-3/9・23/9-2/103/10-13/1014/10・3/

2、8-23/1010/82/922/923/10天数早稻1028151010881晚稻8232010111082需水模比系早稻7242422149100数（％）晩稻626272597100田间渗漏量早稻1.51.51.51.51.51.51.5(mm/d)晚稻1.51.51.51.51.51.51.5水而蒸发量早稻32.6102.848.431.158.437310.3EO(mm)晚稻56.1158.358.828.42821.7351.3阶段需水系早稻0.000.000.000.000.000.001.2数a晚稻0.180.520.190.090.0

3、90.071.15阶段需水量早稻26.0789.3789.3781.9252.1333.51372.36(mm)晚稻24.24105.04109.0810136.3628.28404阶段渗漏量早稻154222.5151512121.5(mm)晩稻1234.5301516.515123阶段耗水量早稻41.07131.37111.8796.9267.1345.51493.86(mm)晚稻36.24139.54139.08116.0052.8643.28527.00逐FI耗水量早稻4.114.697.469.696.715.696.10(mm)晚稻4.53

4、6.076.9511.604.814.336.43表2.2早稻生育期灌溉制度计算表Table2<2Thecalculationtableofirrigationschemeofearlyriceduringthegrowthperiod早稻全生育期田间水层变化H末=日始+P+I・WC・DH始=20mm日期•田间适宜生育期水层深(mm)逐日耗水量(mm)逐口降雨M(mm)田间水层变化(mm)灌水量(mm)排水量(mm)刀u42420.0续表2.2早稻生育期灌溉制度计算表ContinuedTable2.2Thecalculationtableofirri

5、gationschemeofearlyriceduringthegrowthperiodFI期生育期田间适宜水层深(mm)逐Fl耗水J=LBl(mm)逐日降雨量(mm)[□间水层变化(mm)灌水量(mm)排水量(mm)刀H251.417.326返青期0.213.410-30-504」20.32729.6202825.52921.43017.3510.613.8223.733.4329.3425.251.522.0617.3712.6833.441.3936.61031.91127.21222.51317.814分集13.11510-40-604.71

6、300.839.2167.942.4171552.7186.354.31949.62044.92140.22235.52340.36011.12455.3256.156.7264.456.42716.8608.52855.329050.630-4.731・9.461-14.1续表2.2早稻生育期灌溉制度计算表ContinuedTable2>2ThecalculationtableofirrigationschemeofearlyriceduringthegrowthperiodFl期田间适宜水层深(mm)逐Fl耗水量(mm)逐日降雨量(mm)山间水层

7、变化(mm)灌水量(mm)排水量(mm)月Fl生育期238.460330.9420.243.6534.475.263.470.5763.480.25&99孕穗20-50-807.551.61044.11136.6126.229.11327.81420.31542.8301635.3174&130183&41956804.702057.18047.4210.270.5抽穗20-50-809.7221.562.32352.62442.92533.2261.625.1271&428乳熟10-40-606.711.72935.030302&37121.623

8、.91&8312.1435.430528.7622.0737.93024.28黄熟0-305.726.830