城市河流的渠道化园林化问题与自然化要求(董哲仁)#TRS_AUTOADD_1230256408859{MARGIN-TOP:0px;FONT-SIZE:12pt;MARGIN-BOTTOM:0px;LINE-HEIGHT:1.5;FONT-FAMILY:宋体}#TRS_AUTOADD_1230256408859P{MARGIN-TOP:0px;FONT-SIZE:12pt;MARGIN-BOTTOM:0px;LINE-HEIGHT:1.5;FONT-FAMILY:宋体}#TRS_AUTOADD_1230256408859TD{MARGIN-TOP:0px;FONT-SIZE:12pt;MARGIN-BOTTOM:0px;LINE-HEIGHT:1.5;FONT-FAMILY:宋体}#TRS_AUTOADD_1230256408859DIV{MARGIN-TOP:0px;FONT-SIZE:12pt;MARGIN-BOTTOM:0px;LINE-HEIGHT:1.5;FONT-FAMILY:宋体}#TRS_AUTOADD_1230256408859LI{MARGIN-TOP:0px;FONT-SIZE:12pt;MARGIN-BOTTOM:0px;LINE-HEIGHT:1.5;FONT-FAMILY:宋体}/**---JSON--{"":{"line-height":"1.5","font-family":"宋体","font-size":"12pt","margin-top":"0","margin-bottom":"0"},"p":{"line-height":"1.5","font----本文来源于网络,仅供参考,勿照抄,如有侵权请联系删除---family":"宋体","font-size":"12pt","margin-top":"0","margin-bottom":"0"},"td":{"line-height":"1.5","font-family":"宋体","font-size":"12pt","margin-top":"0","margin-bottom":"0"},"div":{"line-height":"1.5","font-family":"宋体","font-size":"12pt","margin-top":"0","margin-bottom":"0"},"li":{"line-height":"1.5","font-family":"宋体","font-size":"12pt","margin-top":"0","margin-bottom":"0"}}--**/摘要:讨论了渠道化和园林化对于城市河流生态系统的危害,指出当前盛行的城市河流园林化是新一轮河流的人工化改造。提出了河流修复的自然化方法,即以水质条件恢复、水文条件恢复、河流景观格局改善和生物群落结构改善为目标的河流生态修复方法-还讨论了河流的美学价值,指出自然河流是具有高度生物群落多样性和景观异质性的开放地带,只有自然河流才能给人以审美欢愉,因此河流的美学价值核心是自然之美:河流的园林化不仅造成生态系统的胁迫,而且降低了河流的美学价值。---本文来源于网络,仅供参考,勿照抄,如有侵权请联系删除---关键词:河流生态系统;渠道化;园林化;胁迫;自然化;水文情势;景观格局异质性;生物群落恢复美学价值Issuesrelatedtochannelizationandgardenlizationandnatualrequirementofrivers//DongzherenAbstract:Thestressonriverecosysteminurbanareaisdiscussedthatresultfrombothriverschannelizationandgardening.Itispointoutthatriversgardeninginvogueisman-madeprocess.Theriverrestorationasnaturalizationprocessisproposedthatincludingwaterqualityrestoration,recoveryofhydrologicalregime,restorationofriverlandscapepatternandcommunityrecovery.Theriverestheticsvaluewhichcoreisnaturebeautyisdiscussed.Naturalrivercorridorsareareasofgreatbiodiversityandlandscapeheterogeneity,andprovideopenspaceforaestheticallypleasingandvisualenjoyment.Theman-maderebuildingofriversnotonlyresultsinstressonecosy---本文来源于网络,仅供参考,勿照抄,如有侵权请联系删除---stembutalsoreduceestheticsvalue.Keywords:riversecosystem;channelization;gardening;stress;naturalization;hydrologicalregime;landscapepatternheterogeneity;communityrecovery;estheticsvalue:TV85文献标识码:B:1000-1123(XX)22-0012-0420世纪50年代始,由于科学认知水平的局限,在治河工程中不重视生态保护,城市河流整治工程存在着违背自然规律的现象,主要倾向是城市河流的“渠道化”。近十几年城市河流“园林化”之风又有愈演愈烈之势。凡是经历过“渠道化”和“园林化”改造的河流,大部分已经面目全非,造成河流生态服务功能下降,美学价值降低,使城市河流陷入了难以摆脱的闲境,不少生机勃勃的河流在城市中慢慢退出人们的视线。一、城市河流的渠道化和园林化问题河流生态系统是一个复杂、开放、动态、非平衡和非线性系统:河流系统是河流生态系统的重要组成部分,由河流、洪泛滩地、湖泊、河汊...