天堂国产午夜亚洲专区-少妇人妻综合久久蜜臀-国产成人户外露出视频在线-国产91传媒一区二区三区

58海灤河流域河流系統(tǒng)生態(tài)環(huán)境需水量計(jì)算

發(fā)布時(shí)間:2016-11-21 05:42

  本文關(guān)鍵詞:海灤河流域河流系統(tǒng)生態(tài)環(huán)境需水量計(jì)算,由筆耕文化傳播整理發(fā)布。


500地理學(xué)報(bào)55卷;[10]LiLijuan.Waterresour;娟.柴達(dá)木盆地水資源承載力研究[J].環(huán)境科學(xué),;EnvironmentalandEcologic;ofRiverSystemsinHaihe-Lu;LILi-juan,ZHENGHong-xing;(InstituteofGeographical;:Inthehistoryofwate

500地   理   學(xué)   報(bào)             55卷

[10] LiLijuan.WaterresourcessupportingcapacityofQaidamBasin[J].EnvironmentalScience,2000(2):20-23.(InChinese)[李麗

娟.柴達(dá)木盆地水資源承載力研究[J].環(huán)境科學(xué),2000(2):20-23.]

EnvironmentalandEcologicalWaterConsumption

ofRiverSystemsinHaihe-LuanheBasins

LILi-juan,ZHENGHong-xing

(InstituteofGeographicalSciences&NaturalResources,CAS,Beijing 100101,China)

:Inthehistoryofwaterutilizationanddevelopment,ourattentionhasalwaysAbstract

beenpaidonthebenefitwecouldgetfromriverswhileenvironmentalandecologicalfunctionoftheriversystemusedtobeneglected.Thustheactivitiesofwaterutilizationanddevelopmentwereaccompaniedbymoreandmoreseriousenvironmentalandecologicalproblems.Inordertoreducetheenvironmentalandecologicalproblemsinducedbywaterresourcesdevelopmentandutilization,thispaperhasproposedaconceptofenvironmentalandecologicalwaterconsumption.Ingeneral,wedefinedthattheenvironmentalandecologicalwaterconsumptionmeanstheminimumwaterthatmustbesavedinorconsumedbythenaturalwaterbodiestoconservetheirenvironmentalandecologicalfunctions.Basedonthedefinition,themethodsoncalculatingtheamountofenvironmentalandecologicalwaterconsumptionaredetermined.Waterconsumptioncanbedividedintothreeparts,i.e.thebasicwaterconsumptionofrivers,waterconsumptionfortransportationofsedimentsandsalts,waterconsumptionforevaporationofthelakes.Themethodsforcalculatingthedifferentpartsofwaterconsumptionwereshowninexpressions.InacasestudyonHai-LuanheBasins,thehydrologicalrecordsbefore1960,whichmayrepresentthenaturalconditionsoftheriversystems,wereusedforcalculating.Theresultsofthecalculationhaveshownthattheenvironmentaland

×108m3,including57×108m3forecologicalwaterconsumptionintheBasinsisabout124

×108m3fortransportationofsedimentsandsaltsand4×108m3forbasicconsumption,63

netevaporationlossoflakes.Thusitwasestimatedthatthetotalamountof

%ofthetotalamountofenvironmentalandecologicalwaterconsumptionaccounts54

83runoff(228×10m).However,therearestillsomeaspectsofenvironmentaland

ecologicalconsumptionthatarenotunderourconsideration.Itshouldberealizedthattherequiredamountofenvironmentalandecologicalwaterconsumptionmustbemorethanthatwehavecalculated.Accordingtothisresult,iftherationalutilizationrateoftherunoffinthebasinsismorethan40%,theproblemsofeco-environmentwillbeseriousbutthecurrentutilizationrateoftheBasinsisashighas80%.Itisontheurgencytocontrolandadjustwaterdevelopmentandutilizationtoeliminatethoseproblemsexistedandtoavoidthepotentialecologicalorenvironmentalcrisesthatarestillnotclear.

Keywords:environmentalandecologicalwaterconsumption;riversystems;Haihe-LuanheBasins

 

 

下載地址:58海灤河流域河流系統(tǒng)生態(tài)環(huán)境需水量計(jì)算_李麗娟.Doc

  【】

最新搜索

海灤河流域河流系統(tǒng)生態(tài)環(huán)境需水量計(jì)算_李麗娟

有機(jī)保溫的取舍

緬懷革命先烈,踐行“五和”鄖陽(yáng)

1203公文處理程序61

tfboys易烊千璽好丑

2013秋浙江大學(xué)繼續(xù)教育英語(yǔ)(1)在線作業(yè)答案

保安大隊(duì)礦權(quán)維護(hù)、油區(qū)治理綜治上半年工作總結(jié)18

《志鴻全優(yōu)設(shè)計(jì)》2014秋高中物理魯科版必修一例題與講解:第

人際交往團(tuán)輔

潮劇 荔鏡記 劇本72


  本文關(guān)鍵詞:海灤河流域河流系統(tǒng)生態(tài)環(huán)境需水量計(jì)算,由筆耕文化傳播整理發(fā)布。

,

本文編號(hào):184106

資料下載
論文發(fā)表

本文鏈接:http://sikaile.net/shengtaihuanjingbaohulunwen/184106.html


Copyright(c)文論論文網(wǎng)All Rights Reserved | 網(wǎng)站地圖 |

版權(quán)申明:資料由用戶d2865***提供,本站僅收錄摘要或目錄,作者需要?jiǎng)h除請(qǐng)E-mail郵箱bigeng88@qq.com
好吊妞视频这里有精品| 黑人巨大精品欧美一区二区区| 黄色av尤物白丝在线播放网址 | 午夜福利黄片免费观看| 国产剧情欧美日韩中文在线| 91天堂素人精品系列全集| 久久国产精品热爱视频| 国产免费一区二区三区av大片 | 日本大学生精油按摩在线观看| 精品一区二区三区乱码中文| 蜜桃传媒视频麻豆第一区| 国产精品一区二区视频成人| 九九热这里只有精品哦| 欧美成人精品一区二区久久| 男人大臿蕉香蕉大视频 | 国产传媒一区二区三区| 国产精品欧美一区二区三区| 深夜视频在线观看免费你懂| 加勒比人妻精品一区二区| 不卡在线播放一区二区三区| 好吊日视频这里都是精品| 婷婷色网视频在线播放| 亚洲天堂男人在线观看| 国产不卡最新在线视频| 好吊日在线观看免费视频| 欧美一区二区口爆吞精| 日本高清中文精品在线不卡| 国产欧美日韩精品自拍| 欧美日韩国产福利在线观看| 欧美日韩亚洲巨色人妻| 久久精品国产亚洲熟女| 国产精品人妻熟女毛片av久久| 国产精品一区二区传媒蜜臀| 日韩综合国产欧美一区| 免费观看一区二区三区黄片| 国产一级特黄在线观看| 福利视频一区二区三区| 精品香蕉一区二区在线| 初尝人妻少妇中文字幕在线| 国产精品免费视频视频| 色综合伊人天天综合网中文|