紫色土水分和壤中流對(duì)降雨強(qiáng)度的響應(yīng)
[Abstract]:in ord to study that effect of the rainfall intensity on the soil moisture content and the water flow in different depth of the purple soil slope, the mutual coupling relation between the water and the water flow of the purple soil is preliminarily revealed, and the rainfall test is simulated by in-situ artificial simulation, and under the condition of 60,90,120 mm/ h three rainfall intensity, The soil moisture content in the shallow layer (0-20cm), the middle layer (20-40 cm) and the deep layer (40-60 cm) of the purple soil slope cultivated land is measured in real time by using the Minitrase TDR-buried probe, The observation and experiment of the process of rainfall and runoff production are carried out. The results show that: (1) when the rain is strong, the water content change curve of the shallow soil shows the rising period and the stable period, and with the increase of the rain intensity and the depth, the rising period, the stable period or the stable period is at all times; and (2) with the increase of the depth and the rainfall intensity, The water content of the soil increases, the smaller the water content change, the less the response is, (3) Under the condition of different rainfall intensity, each soil layer has a single-peak flow generation process under the condition of low rain and strong rain, and the middle rain is strong and the high rain intensity is the double-peak production process; (4) The time of flow-in-flow was significantly reduced with the increase of the rainfall, and the rainfall intensity was significantly increased with the increase of depth; and (5) there was a significant correlation between the rainfall intensity and the soil moisture content and the flow parameters.
【作者單位】: 西南大學(xué)資源環(huán)境學(xué)院西南大學(xué)三峽庫(kù)區(qū)生態(tài)環(huán)境教育部重點(diǎn)實(shí)驗(yàn)室;華中農(nóng)業(yè)大學(xué)資源環(huán)境學(xué)院;
【基金】:國(guó)家自然科學(xué)基金項(xiàng)目“碎石分布對(duì)紫色土坡面侵蝕的影響及其作用機(jī)制”(40120514) 中央高校基本科研業(yè)務(wù)費(fèi)專(zhuān)項(xiàng)“紫色土丘陵區(qū)不同土層土壤水運(yùn)移規(guī)律研究”(XDJK2013C152)
【分類(lèi)號(hào)】:S157.1
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 裴鐵,王番,李金中;壤中流模型研究的現(xiàn)狀及存在問(wèn)題[J];應(yīng)用生態(tài)學(xué)報(bào);1998年05期
2 劉廷璽;壤中流形成機(jī)理的數(shù)學(xué)描述[J];內(nèi)蒙古農(nóng)牧學(xué)院學(xué)報(bào);1994年03期
3 劉泉;李占斌;李鵬;宋煒;;漢江水源區(qū)自然降雨過(guò)程下坡地壤中流對(duì)硝態(tài)氮流失的影響[J];水土保持學(xué)報(bào);2012年05期
4 常龍飛;王曉龍;李恒鵬;胡鋒;;巢湖典型低山丘陵區(qū)不同土地利用類(lèi)型壤中流養(yǎng)分流失特征[J];生態(tài)與農(nóng)村環(huán)境學(xué)報(bào);2012年05期
5 賈海燕;葉閩;雷俊山;王孟;余秋梅;;紫色土地區(qū)壤中流磷流失特征及其環(huán)境效應(yīng)[J];人民長(zhǎng)江;2009年21期
6 何淑勤;宮淵波;鄭子成;;紫色土區(qū)坡耕地壤中流磷素流失特征研究[J];水土保持學(xué)報(bào);2014年02期
7 張洪江,何凡,史玉虎,祁生林,程金花,潘磊;長(zhǎng)江三峽花崗巖坡面管流在壤中流中的作用[J];中國(guó)水土保持科學(xué);2005年01期
8 王峰;沈阿林;陳洪松;陳家宙;;紅壤丘陵區(qū)坡地降雨壤中流產(chǎn)流過(guò)程試驗(yàn)研究[J];水土保持學(xué)報(bào);2007年05期
9 李恒鵬;金洋;李燕;;模擬降雨條件下農(nóng)田地表徑流與壤中流氮素流失比較[J];水土保持學(xué)報(bào);2008年02期
10 付智勇;李朝霞;蔡崇法;郭忠錄;;不同起始條件下坡面薄層紫色土水分和壤中流響應(yīng)[J];水利學(xué)報(bào);2011年08期
相關(guān)碩士學(xué)位論文 前7條
1 王潔;滇池流域不同農(nóng)田化肥農(nóng)藥使用對(duì)壤中流水質(zhì)及其自凈效能的影響[D];云南大學(xué);2016年
2 劉祥章;紫色土坡耕地水分和硝態(tài)氮隨壤中流運(yùn)移過(guò)程的三維模擬[D];重慶大學(xué);2016年
3 李娜;江淮農(nóng)業(yè)流域壤中流養(yǎng)分的遷移過(guò)程研究[D];北京林業(yè)大學(xué);2004年
4 褚利平;撫仙湖流域烤煙坡地壤中流氮磷濃度的動(dòng)態(tài)特征研究[D];西南林業(yè)大學(xué);2010年
5 耿潔;雙坡度條件下不同母質(zhì)土壤壤中流發(fā)育及氮素淋失特征[D];華中農(nóng)業(yè)大學(xué);2013年
6 劉小梅;土樣初始狀態(tài)對(duì)紅壤坡面水文過(guò)程的影響研究[D];湖南師范大學(xué);2013年
7 沈紫燕;幾種關(guān)鍵因素對(duì)紅壤中溴、磷隨徑流遷移機(jī)制的影響[D];湖南農(nóng)業(yè)大學(xué);2014年
,本文編號(hào):2505845
本文鏈接:http://sikaile.net/kejilunwen/nykj/2505845.html