It was found that, for the control treatment the average runoff depth was 3.72mm per 10mm, the water loss index was 37.2%, the average soil erosion was 43.6 kg*hm-2*10mm-1, and the soil erosion modulus was 7.42 t*km-2*a-1, which are all high in the 4 treatments. For the other three treatments, the surface runoff and the average soil erosion amount were 2.20%-67.08%and 43.81%-90.83%lower than those of the control, respectively. The most effective pattern for soil conservation was the artificial forest with underbrush treatment, and the best water conservation pattern was the treatment of planting tea bush on contour terrace.

結(jié)果表明，CK的平均徑流深度為3.72 mm/10 mm国产丝袜在线，降水流失率為37.2%，平均每10mm降雨的土壤侵蝕量為43.6kg*hm-2，年土壤侵蝕模數(shù)為7.42 t*hm-2久久男人深夜影院；其它3個(gè)不同植被覆蓋處理的地表徑流量比裸地對(duì)照降低2.20%～67.08%，平均土壤侵蝕量減少43.81%～90.83%手机日韩精品资源站；林下地表覆蓋處理的保土效果最好无码毛片视频一区二区免费播放，等高梯田種植茶樹處理的保水效果最好。

The average depth of erosion on gritstone for cavitation water jets is 2 times as much as common water jets, and its mass erosion is 7 times as much as common water jets, and its diameter of erosion is 2.3 times as much as common water jets.

對(duì)于含有空泡的磨料射流欧美性碰碰，圍壓增加空化噪音減少羞羞在线，泵壓增加空化噪音增加；有效靶距直徑比增加，對(duì)花崗巖的沖蝕深度與沖蝕質(zhì)量存在一最優(yōu)有效靶距直徑比亚洲黄色视频免费看；在最佳沖蝕時(shí)間下情侣av在线，較純水空化射流工作效率提高2倍。

Changes of erosion and accumulation of the seabed before and after the project The general characteristics of the pattern of erosion and accumulation of the seabed near the scheduled project both before and after the scheduled project are as the following: accumulation occurs at the areas lower than–10 isobath; some suspended sediment is deposited near the coast due to the relatively small tidal current with a monthly accumulation rate of 2-6 mm; while a slight erosion occurs in the areas deeper than–10 isobath with a monthly accumulation rate of .2 mm.

5工程前后海底沖淤變化工程前后海底沖淤相同的地方是：大致沿-10m等深線向近岸呈淤積狀態(tài)4438精品黄色视频，近岸由于潮流流速小BB爱A片视频，一些懸沙落淤，月淤積量在近岸附近約2-6mm狼友视频色图；而-10m等深線以深基本上呈輕微沖刷狀態(tài)精品三级av无码一区蜜芽，月沖刷量一般在0.2mm以下。

The erosion processes from sheet erosion, rill erosion, and to gully erosion were represented as well.

結(jié)合3種測(cè)量技術(shù)從測(cè)量精度18禁免费无码无遮挡网站老男人、測(cè)量人員要求国产三区精品免费视频、數(shù)據(jù)處理、數(shù)據(jù)通用性欧美日本亚洲国产另类、配套軟件使用99re、前期投入、測(cè)量條件等幾個(gè)方面入手国产av的网站，對(duì)比分析高精度GPS(Trimble 5700)大战黑人AV无码、三維激光掃描儀(Leica HDS 3000)和測(cè)針板的3種測(cè)量方法的優(yōu)缺點(diǎn)，同時(shí)對(duì)3種測(cè)量方法在溝蝕過(guò)程監(jiān)測(cè)和侵蝕量估算方面進(jìn)行對(duì)比研究亚洲大吊。

Besides, when the experimental soil was clay soil of Yangling, the appearance and developing process of rill erosion happened respectively 12-15min and 4-8min earlier than of silt soil of Shaanbei.Accumulated sheet and rill erosion amounts increased with the rainfalls time, and the latter increased quickly than the earlier. The total accumulated rill erosion amounts were 2.5 and 5.5 times more than accumulated sheet erosion amounts.

黃綿土坡面發(fā)生細(xì)溝侵蝕的時(shí)間早于粘黃土坡面12-15min人人操人人干人人乐综合色站；坡面細(xì)溝侵蝕達(dá)到穩(wěn)定的時(shí)間粘黃土坡面也比黃綿土坡面滯后約4-8min；累積面蝕量和細(xì)溝累積侵蝕量均隨降雨時(shí)間的延續(xù)而增加国产超级碰，且后者增加幅度明顯大于前者操操操草草草；降雨結(jié)束時(shí)，坡面細(xì)溝累積侵蝕量約為累積面蝕量的2.5～5.5倍91亚洲精品在线免费，約占坡面總侵蝕量的80％以上天天免费操一操。

In the dissertation,Guizhou Province andGuiyang.Guizhou Province were selected as the research area and the model region.With theguidance of knowledge discover in database and soil erosion theory,remote sensing and GISwere used to study the senior and the primary method of obtaining the soil erosion message,which are based on unstructural knowledge discover in database.All the methods wereapplied to survey the soil erosion in Guizhou and to monitor the soil erosion change inGuiyang,all of the achievements enhanced the water-soil conservation in the research areaand the model region.

本文在知識(shí)發(fā)現(xiàn)和土壤侵蝕理論指導(dǎo)下，應(yīng)用遙感和地理信息系統(tǒng)技術(shù)美女被操免费黄色网站，選擇貴州省為研究區(qū)99热99re6国产在线播放，貴州省貴陽(yáng)市為研究樣區(qū)，進(jìn)行了基于非結(jié)構(gòu)性知識(shí)發(fā)現(xiàn)的土壤侵蝕信息提取方法初級(jí)方式和高級(jí)方式的研究亚洲专区在线观看无码，并把它們應(yīng)用到研究區(qū)和研究樣區(qū)的土壤侵蝕調(diào)查和土壤侵蝕動(dòng)態(tài)監(jiān)測(cè)工作中玖玖玖在线精品免费视频，促進(jìn)了研究區(qū)的水土保持工作。

In order to made a study of law of development of side slope gully erosion of highway spoil ground ,upgrowth characteristic and law of development of gully erosion and realation between intercolparis erosion and gully erosion had been studied in the spoil ground of constructing Hurongxi expressway of Hubei province.

為探討公路棄土場(chǎng)邊坡溝蝕發(fā)生發(fā)展規(guī)律亚洲欧美一区二区日韩另，以湖北滬蓉西高速公路為例三级日韩欧美第一页，從棄土場(chǎng)溝蝕發(fā)育特征、發(fā)生發(fā)展規(guī)律和與溝間侵蝕的關(guān)系3方面對(duì)棄土場(chǎng)溝蝕規(guī)律進(jìn)行探討,在线观看黄色网址。

As setting up simple monitoring area in spoil ground to measure the gully erosion amount, the soil erosion was calculated. More, the rainfall erosion forces and their best combination of the railway in the red-earth region of southern China were established. The slope erosion of the Yong-Tai-Wen railway mainly presented as vertical zonations.

在棄土場(chǎng)區(qū)域內(nèi)布設(shè)簡(jiǎn)易水土流失觀測(cè)場(chǎng)和測(cè)定區(qū)域內(nèi)溝蝕量的方法來(lái)計(jì)算土壤侵蝕量人人看人人插人人摸，研究了棄土場(chǎng)的土壤侵蝕特性国产精品视频一区二区啪视频，確立了南方紅壤區(qū)鐵路工程的降雨侵蝕力及最佳降雨侵蝕力的組合。

This research reveals that dynamic action is the root reason for soil water-erosion, and that law of conservation of mass and energy is the basic principle of soil erosion, and that the coexistence of erosion and sediment is a universal rule of soilwater-erosion.

根據(jù)力學(xué)和物質(zhì)與能量原理国产理伦免费视频，對(duì)土壤水力侵蝕這一自然地理現(xiàn)象從哲學(xué)的高度進(jìn)行分析天天人人夜夜操，認(rèn)為水動(dòng)力作用是土壤水力侵蝕的根本原因；物質(zhì)與能量守恒是土壤水力侵蝕的基本法則啪啪午夜；侵蝕與沉積并存是土壤水力侵蝕的普遍規(guī)律欧美一级牲交黄片在线。

This research reveals that dynamic action is the root reason for soil water erosion, and that law of conservation of mass and energy is the basic principle of soil erosion, and that the coexistence of erosion and sediment is a universal rule of soilwater erosion.

提出基于能量力學(xué)機(jī)理的 3個(gè)土壤水力侵蝕的新理論，即侵蝕平衡理論www.欧美激情69、最大梯度理論和水流侵蝕力理論青春草在线视频按摩按。