洞庭湖濕地生態(tài)恢復模式與綜合效益評價研究.pdf

1、西南大學碩士學位論文洞庭湖濕地生態(tài)恢復模式與綜合效益評價研究姓名：楊祎申請學位級別：碩士專業(yè)：水土保持與荒漠化防治指導教師：何丙輝周金星20080501AbstractStudyonthesystemofEcologicalRestorationforWretlandsofDongtingLakeAreaandtheintegratiVeAssessmentonitGraduatestudent：YangYiSuperVisor：Pro

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3、撕ousfeSourcesofproductionandlife，butals0plays齟importantrolethatcannotbereplacedbyotherecosystemsinresistingflood，regulatingmno或improVingenVironment，controllingpollution，protectingdiVerSityofspecies卸dgene，maintainingregio

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5、ever舾thewiseIessutilizationanddestructionof、^，etl鋤ds，resultsshowthatthetotalareaofnaturalwetlandsisdecreaSedSincel949t0nowabout2652xl04hm2naturalwetlandhaSbeendiminishedWetlandsresourcesinChinaisintheprocessofloSt鋤ddeg硼a

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8、esentedfiVedj療eremtypesofwetland，includingLakewetl卸d’RiVerwetland，beachwetland，man—madewetland1’hepurposeofthis咖dyist0(1)establish柚inte伊ativeaSsessmentindicatorsystemforecologicalrestoration卸dutilizationofwetlandsresourc

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