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ID:32137042
大小:6.14 MB
页数:60页
时间:2019-01-31
《基于优势度的流域综合评价研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、frequentishigh.Althoughtheecologicalvalueofthesesub-basinislow,properroaddensityandpopulationdensitymakethepriorityhightotallySuchassub—basin9,10,13,thepriorityis“best”;whereassub.basin1and4behavesbadbecauseofthebadbasinmanagementandprotection.Fromtheanalysisofbasinstate,
2、itiseasytofindthatthreeregions’priorityislow,thefirstgroupof5,9,13,15,thesecondgroupof10,11andthethirdgroupof2l,23.AllthebasinsabovelocatethejointofMeijiangriverandtheexit;theothersishi曲.Thepriorityofsub—basin1,2,4and6isthelowest,themajorityis‘‘worst’’or“worse”.Theymainly
3、distributeinthenorthofMeijiangfiverBecauseofthevariedtopography,thehighaltitude,smalldensityofpopulationandpoortranspotation,thesyntheticalpriorityhasthestrenthinthewholeMeijiangriver;thepriorityofthesub-basin9,13,14,15,18,19,21and22iSinthelevelof“benef’,theyarealsothedis
4、tributionregionwimhighpriority,andtheymainlydistributeinthesouth-westem.Becausethetopographyisflat,thealtitudeislow,itistheconfluenceofrivers,thetrafficareaandthepopulationconcentratedarea;whereasthepriorityofthesub—basin7,8,11,12,16,17and20whichlieintheeastandsouth.estem
5、areaisinthelevelof“SO—SO”,inotherwords,itisbetweenthepriorityoftheseregions.Keywords:Meijiangriver;priorityanalysis;EMDS;watershedsyntheticalevaluationIV图表目录图I-I技术路线图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯6图卜2流域优势度综合评价指标体系⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯·12图2-1梅江流域在江西省的位置⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯16图2-2梅江流域
6、子流域分布图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯20图2-3梅江流域乡镇分布图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯“20图3-I梅江流域水量站点与气象站点分布⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯22图3-2梅江流域DEM⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯··23图3-3梅江流域坡度分布图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯··23图3-4梅江流域降水量分布图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯··26图3-5梅江流域河网密度图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯26图3-6梅江流域土壤类型分布图⋯⋯⋯⋯⋯⋯⋯
7、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯“27图3-7梅江流域道路分布图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯·27图3-8梅江流域植被覆盖分布图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯31图3-9景观管理因子知识库赋值⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯34图4-1海拔高度优势度分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯·36图4-2地形坡度优势度分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯36图4—3地形起伏优势度分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯36图4—4年降水量优势度分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯·37
8、图4-5积温优势度分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯37图4-6气候条件优势度分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯·37图4—7河网密度优势度分析⋯⋯⋯⋯⋯⋯⋯⋯⋯
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