The study results indicate that the simulation results in Zhangjiashan and the area between Xianyang and Lintong are more reasonable. Layered Continuous Muskingum method is used to rout the flood in mainstream, and the runoff process at Huaxian station is composed of the results of Muskingum and the runoff simulated in interzone.

在渭河下游流域移用秦渡鎮(zhèn)控制流域的模型參數(shù)來模擬區(qū)間的洪水過程伊人一区二区三区久久精品；干流洪水演算采用馬斯京根分層連續(xù)演算法，最后將區(qū)間模擬的徑流過程和干流徑流過程相疊加形成華縣站的流量過程久久精品国产99精品九九。

The drainage system shall be effectively designed, constructed and operated to avoid discharging construction site runoff into the streams and to transfer all runoff during construction and operation to the Wong Lung Hang nullah in Tung Chung for discharge.

排水系統(tǒng)須妥善設(shè)計(jì)黄色性爱视频亚洲可以看的、建造及營辦，以免建造工地徑流排入河道欧美a片黄片大片，并須把建造及營辦期間所造成的全部徑流導(dǎo)引至東涌的黃龍坑明渠排放精品黄色网站在线入口。

Thirdly, the rain gauge observations and QPE/QPF mean areal precipitation derived from radar were used for runoff simulation and forecast using a semi-distributed rainfall-runoff model for Xianghongdian and Foziling subcatchments, as well as several watersheds subdivided from Foziling.

用加密地面雨量計(jì)網(wǎng)測得的面雨量和雷達(dá)—雨量計(jì)聯(lián)合測量降水或外推的面雨量作為TOPMODEL水文模型的降水輸入進(jìn)行了兩個水庫所控制的流域及其中一些子流域的流量模擬和預(yù)報研究。

Revisal coefficient models of moisture were rectified in different extents of water using on the basis of dynamic monitor data of soil moisture, surface runoff and superficial ground water, and moisture revisal coefficients in different conditions of nature and fully utilization of surface runoff and superficial ground water.

在實(shí)地動態(tài)監(jiān)測耕地土壤水分含量的基礎(chǔ)上美女被操逼网站，修正建立水分訂正系數(shù)模型国产精品福利导航，并計(jì)算出龍何屯自然條件下的水分訂正系數(shù)。

Compared with average runoff in savageness condition before 1979 in the Hutuo River Basin,average runoff in savageness condition from 1980 to 2000 reduced at the speed of 2.59% per year.

滹沱河區(qū)1980—2000年系列與1956—1979年系列的平均水資源相比韩国精品无码永久在线观看，以每年2.59%的速度減少亚洲中文字幕精品久久HD。

We have a conclusion: Compared with Average runoff in savageness condition before 1979 in The HuTuo River Basin, average runoff in savageness condition from 1980 to 2000 reduced at the speed of 2.59% per year.

經(jīng)過分析比較，滹沱河區(qū)1980～2000年系列與1956～1979年系列的平均水資源相比超碰98人妻，以每年2.59％的速度減少欧美黄色乱轮。

Whether rainy year or dry year,semiarid or subhumid region,the site evaporation account for a largeproportion in the total water consumption,transpiration next,crown interception and surface runoff smallest,butthe importance of artificial regulation is:evaporation＞runoff＞anspiration＞crown interception.

黃土高原人工林系統(tǒng)耗水量，無論豐水年或枯水年网站黄色视频免费，均以林地蒸發(fā)耗水最大经典人人操人人干人人看，其次為林木蒸騰、林冠截留色哟哟毛片网站，地表徑流最小黄色av网址在线播放。其人工調(diào)控的重要性以林地土壤蒸發(fā)位居第一，地表徑流遠(yuǎn)在林冠截留甚至林木蒸騰之上伊人黄片啪啪啪。

The experimental plot situated at the middle of Sichuan Basin, the peculiar resource of purple soil and subtropic climate make it become the principal part of Sichuan agriculture.This paper,using Soil Conservation Service Curve Number method,calculated the volume of rainfall runoff in 2005, through calibrating the parameter Ia and parameter CN. it can received the suitable range of parameter, and the arverage error are respectively 6.46%,10.22% and 8.40%. It also show the feasibility that the application of SCS model to estimate the volume of rainfall runoff in sloping field of purple soil

此次試驗(yàn)地位于四川盆地中部亚洲图片家庭乱伦，獨(dú)特的紫色土資源與亞熱帶氣候的最佳組合成為四川農(nóng)業(yè)的主體區(qū)域，運(yùn)用SCS模型計(jì)算試驗(yàn)小區(qū)在2005年的三場降雨產(chǎn)生的徑流量xxxx性16xx，通過校正Ia和CN參數(shù)啊灬啊灬高潮来了视频在线观看，小區(qū)計(jì)算值和實(shí)測值的誤差分別為6.46%，10.22%和8.40%真实处破女www，得到了可信度較高的結(jié)果女性视频网站,色，同時說明了SCS模型在估算紫色土流域徑流量的可行性日韩午夜福利版在线播放观看。

The results show that the dynamic change of water resources in the Heihe River Basin is mainly reflected by three aspects, i.e., the formation, utilization and disappearance of runoff respectively, the runoff formation area accounting only for 10% of total area of the Heihe River Basin plays a dominant role in the dynamic change of water resources in the whole basin and affects the capabilities of take-in and send-out, conservation, evapotranspiration and conversion of water resources.

研究表明，本區(qū)水資源動態(tài)變化主要在徑流形成人人操毛片免费看、利用和消失三個區(qū)域內(nèi)具有依次性體現(xiàn)的特征久欠精品国国产99国产精2020。其中占總流域面積10%左右的河川徑流形成區(qū)，對全流域的水資源動態(tài)變化具有先決性作用在线播放精品，并在各個區(qū)域水動態(tài)變化體現(xiàn)上又受到系統(tǒng)對水的吞吐久久久久免费视频a片、留存、蒸散和轉(zhuǎn)化能力大小的影響欧美日韩另类。

Based on field investigation and historical data analyzing, the characteristics and causes of flood disasters of Qinba Mountain area were discussed in this paper. Take the harnessed Watershed and unharnessed Watershed as comparative study objects, through analzing the two typical watershed land using and rainfall-runoff dynamic data, combinating the in-situ soil infiltration field testing, a rainfall-runoff model of small watershed which was appropriate to Qinba Mountain areas was built based on improving the SCS model. And then the influence of soil and water conservation measures on the flood processes was analysed.

本文通過野外調(diào)查與歷史調(diào)查資料性爱网址在线观看，闡述了秦巴山地區(qū)洪水災(zāi)害的特點(diǎn)及成因，以治理流域與未治理流域?yàn)閷Ρ妊芯繉ο笊ㄟ^對兩條典型流域的土地利用狀況分析全彩H漫无遮挡全彩3D，結(jié)合土壤入滲原位測試，充分利用降雨在线观看黄v视频国产、徑流動態(tài)觀測資料国产熟女网站，以SCS模型模擬降雨徑流為重點(diǎn)，建立適合于秦巴山地區(qū)小流域的降雨徑流計(jì)算模型国产在线com，分析水土保持措施對于洪水的作用過程狼友黄色网站。