Determining key ecological indicators for urban land consolidation

Abstract

Urban land consolidation, which reforms land parcels to remove fragmentation and produce ideal blocks, is an effective means of urban renewal. Successful urban land consolidation benefits city officials as well as the general public, in improved city image, increased land value, and more effective land use. However, urban land consolidation can be ecologically detrimental to the environment, while land consolidation has focused solely on development for human benefit. To remove the negative effects of urban land consolidation on the ecological system, this paper establishes a set of criteria for evaluating ecological impacts of an urban land consolidation plan. The current study first identifies key ecological indicators using a special group decision‐making process called “habitual domain analysis” and then records individual weighting of each indicator by an analytical hierarchy process, thus developing an urban ecological evaluation model with four levels and twenty‐three indicators.

SANTRUKA

Miestu žemes sujungimas, kurio metu pertvarkomi žemes sklypai, pašalinamas susiskaldymas, pateikiami pavyzdiniai blokai, yra veiksmingos miestu atnaujinimo priemones. Sekmingas miestu žemes sujungimas naudingas miestu vadovams, taip pat plačiajai visuomenei, nes pagerina miesto ivaizdi, padidina žemes verte ir veiksmingesni žemes naudojima. Tačiau miesto žemes sujungimas gali būti ekologiškai kenksmingas aplinkai, nes tai atliekama tik žmoniu naudai. Siekiant pašalinti neigiama miestu žemes sujungimo poveiki ekologinei sistemai, šiame straipsnyje nustatomi tam tikri kriterijai, kuriais vadovaujantis vertinamas ekologinis miestu žemes sujungimo poveikis. Dabartinis tyrimas pirmiausia nustato pagrindinius ekologinius rodiklius, taikant specialu grupes sprendimu priemimo metoda, vadinama iprastos aplinkos analize. Tada, atsižvelgiant i analitini hierarchijos procesa, pagal svarba nurodomi atskiri rodikliai ir sudaromas keturiu lygiu ir dvidešimt triju rodikliu miesto ekologinis ivertinimas.

Keywords:

• Ecological evaluation
• Biodiversity
• Urban renewal
• Urban land consolidation
• Habitual domains