Combined a large number of on -site investigate and survey data of loess area in the north of Shaanxi Province, the paper analyzed the influence factors and interrelationship of slope erosion, then put forward the main influence factors , the peculiarity of outwash destructions the main style and protective measures about slope erosion of highway in loess area. The first: the emphasis about protective measures of cut-slope are the selection of rate of grade, the place of plain stage of slope, the slope protection; the second: the emphases about drainage of cut-slope is the rational installation and mating of drainage establishment; And following this principle: the effective holding up , the rapid obviating, the smooth articulation, the seepage prevention and prevent erosion.

根據(jù)陜北黃土地區(qū)公路的大量現(xiàn)場(chǎng)調(diào)查和實(shí)測(cè)資料免费一级无码婬片AA片AV黄，分析了公路邊坡沖蝕的影響因素及其相互關(guān)系卡通动漫综合图区第1页，提出了黃土地區(qū)公路邊坡沖蝕的主要影響因素、沖蝕破壞特點(diǎn)国内精品视频福利第一区导航、主要類型與防護(hù)對(duì)策人人操人人狠，得出：1、路塹邊坡坡面沖蝕防護(hù)重點(diǎn)是坡率選擇谁有免费的黄色视频、邊坡平臺(tái)設(shè)置亚洲一区黄片、邊坡防護(hù)；2国产一级在线观看免费视频、路塹邊坡排水重點(diǎn)是排水設(shè)施的合理設(shè)置與配套影音先锋在线精品视频网站；并遵循有效攔截黄片大全免费看的mm视频、迅速排除、銜接順暢黄色午夜欧美视频、防滲防沖等原則无码毛片一区,二区,…。

Thirdly, The mathematics model of forecasting low flow was established in Fengcong and Fenglin regions according to these factors influencing the amount of low flow in karst drainage (the area of drainage, lithology, the type of landforms and its special assembly and forest)The conception of low water resources carrying capacity was firstput forward according to the changing law of low water resources in space and the situation of exploitation and utilization in karst drainage (ie, under the condition of the virtuous ecological environment and the available technology, the explorable amount of water resources in certain areas is capacity and limitation which is able to coordinate the development of population, enviroment and economy during the period of low flow seasons) and preliminarily analyzed its connotation, characteristic and established the index system of low flow in karst drainage.

根據(jù)喀斯特流域枯水資源的空間變化規(guī)律以及實(shí)際開發(fā)利用狀況，首次提出了枯水資源承載力的概念婷婷国产精品视频综合，即在枯水季節(jié)期間精品人妻无码专区在线中文字幕，保持良性的生態(tài)環(huán)境和現(xiàn)有的技術(shù)條件下，某一區(qū)域內(nèi)可開采的水資源量對(duì)支持該地區(qū)人口色爱爱亚洲视频综合、經(jīng)濟(jì)與環(huán)境協(xié)調(diào)發(fā)展的能力和限度另类A片。

Taking Changshu in Jiangsu province as an example, the drainage moduli of diked area in urban and agricultural areas are calculated and the effect of two different drainage standards on drainage modulus calculation is analyzed.

以江蘇省常熟市為例，對(duì)城鎮(zhèn)圩區(qū)国产一级午夜福利、農(nóng)業(yè)圩區(qū)排澇模數(shù)進(jìn)行計(jì)算性欧美videos，并分析了兩種圩區(qū)不同的排澇要求對(duì)排澇模數(shù)計(jì)算方法的影響。

Aiming at the drainage specialties of urban diked area, we analyze the principle of drainage calculation and obtain a drainage-modulus-calculation method for the urban diked area with full consideration of river-storage capacity.

針對(duì)城鎮(zhèn)圩區(qū)的排澇特殊性看50岁黄色视频免费，通過(guò)分析排澇計(jì)算的原理黄色A片18免费，充分考慮圩區(qū)內(nèi)河道的調(diào)蓄能力，得到適應(yīng)城鎮(zhèn)圩區(qū)排澇計(jì)算的方法XX欧美性爱。

Taking Jiangning District in Nanjing City as an example, the drainage modulus of its urban diked area is calculated, then the correlation between drainage modulus and regulation storage is educed.

以南京市江寧區(qū)為例人人色人人干，對(duì)城鎮(zhèn)圩區(qū)的排澇模數(shù)進(jìn)行計(jì)算，得到排澇模數(shù)與調(diào)蓄庫(kù)容之間的定量關(guān)系怎样免费在线观看黄色视频。

Due to food pressure, grain product in the western Jilin Province will be enhanced in the near future. Farmland areas in the area will be decreased slowly in the near future, but with the technique development of irrigation establishment, paddy areas and utilization amount of fertilizer and pesticides will be increased rapidly. So, the NPS pollution from farmland will be more serious. The main lakes in the areas such as Moon Lake and Qagan Lake have been polluted by N and P, and the content of salt in the Nenjiang River has been increasing since last 30 years. All of these show that the negative effects of NPS pollution in the area have been serious and should not be neglected by the scientific research and corresponding government management. To deal with the contradiction of agriculture development and water pollution, the trend of increasing paddy area and using amount of fertilizer, pesticide and herbcide in the western Jilin Province should be controlled. Also, the drainage of return flow from paddy should be controlled and return flow should be disposed with ecotechniques by use of the large areas of lakes and mires in the area. Through these measures, the quality of surface water could be protected and the degeneration of ecoenvironment in the area could be contained.

我國(guó)由于糧食壓力欧美的天堂wwwwww，未來(lái)吉林西部的糧食生產(chǎn)還將進(jìn)一步加強(qiáng)，隨著種植業(yè)結(jié)構(gòu)的調(diào)整欧洲aaaa片，墾殖率會(huì)略有下降，但隨灌溉設(shè)施的建設(shè)與完善自拍偷拍一区12，水田面積將進(jìn)一步擴(kuò)大国产在线97色永久免费视频，化肥、農(nóng)藥的用量還將快速增加欧美另类呦交视频免费观看，農(nóng)業(yè)活動(dòng)引起的非點(diǎn)源污染將更加突出欧美另类视频第一页，而研究區(qū)的主要湖泊月亮湖、查干湖目前已達(dá)中等富營(yíng)氧化水平在线视频伦，嫩江水質(zhì)的咸化趨勢(shì)明顯国产精品免费视频色拍拍拍，因此農(nóng)田非點(diǎn)源污染物的流失及其內(nèi)流區(qū)外流化面積的增加對(duì)地表水體富營(yíng)養(yǎng)化、咸化的作用愈來(lái)愈明顯欧美性爱2018，農(nóng)田非點(diǎn)源對(duì)地表水水質(zhì)的影響已不容忽視久草视频首页，應(yīng)引起社會(huì)的關(guān)注，為協(xié)調(diào)農(nóng)業(yè)發(fā)展與水污染這一矛盾久久久久综合综合情况久久久，吉林西部應(yīng)遏制化肥嗯啊边走边做…野战、農(nóng)藥施用量增長(zhǎng)過(guò)快和水田過(guò)度開發(fā)的勢(shì)頭啊你轻点啊好深视频，控制洗鹽回歸水的排放量，利用區(qū)內(nèi)廣泛分布的大量泡沼對(duì)農(nóng)田徑流和回歸水進(jìn)行生態(tài)處理欧美日韩国产人成视频，既保護(hù)了地表水的水質(zhì)日韩精品视频在线观看,，又有利于生態(tài)環(huán)境的改善。

On the basis of figure of present land use from the year 1987 to 2003 and relief map with a ratio of one to ten thousand of a small drainage area of Luju district in Jiangchuan county,with the support of MapGis6.6 workstation,kinds of data including properties data and graph data were analyzed,a spatial information base was created,then correlative data on present land use and soll and water loss were extracted; kinds of databases were created finally.

中文摘要：以江川縣路居片區(qū)小流域1987-2003年土地利用現(xiàn)狀圖和萬(wàn)分之一地形圖為基礎(chǔ)黄色看片网址，在地理信息系統(tǒng)軟件MapGis6.6工作平臺(tái)支持下99riav8。處理各種屬性數(shù)據(jù)、圖形數(shù)據(jù)等信息暧暧视频免费。

When run on a production well, a singlewell pressure buildup test generally gives information only on the well's flow efficiency and the reservoir transmissibility within the well's drainage area.

p205u 譯文：當(dāng)在生產(chǎn)井中進(jìn)行的單井壓力恢復(fù)試井一般只能提供井的泄油范圍內(nèi)的井的流動(dòng)效率和油藏傳導(dǎo)率的信息成品直播大全免费观看网站视频下载。

The results show that the methane drainage quantity from the bores perpendicular to face cleat was 1.2 times that of the bores parallel to face cleat in any time and the difference between them becomes more distinct with the drainage time increasing. In the research area, the bores perpendicular to the face cleat was 2.61 times that of the bores parallel to face cleat in maximum drainage quantity and 4.34 times that in drainage effect, and the reasonable time is about 300 days.

結(jié)果表明：垂直面割理方向鉆孔的抽放量在任何時(shí)刻都明顯高於平行面割理方向鉆孔的抽放量，抽放時(shí)間越長(zhǎng)插插黄色爱，兩方向抽放量之間差距越顯著黄色视频手机在线视频；研究區(qū)垂直面割理方向鉆孔的極限抽放量是平行面割理方向鉆孔的2.61倍，抽放率高出4.34倍一边亲一边桶一边摸免费视频，合理抽放時(shí)間在300d左右曰曰尻夜夜尻。

Is the main tributary of the Darling River, the water of the most unstable, drainage area 910,000 square kilometers.

主要支流是達(dá)令河，水最不穩(wěn)定国产强奸网址，流域面積91萬(wàn)平方公里肥婆a片视频。