盐城珍禽保护区核心区丹顶鹤生境适宜性评价与影响因素分析

打开文本图片集

关键词：丹顶鹤；生境适宜性；MaxEnt模型；GIS；互花米草；盐城珍禽国家级自然保护区中图分类号：Q958.1;S718 文献标志码：A 文章编号：1000-2006（2026）01-0074-08

Evaluation of habitat suitability and analysis of influencing factors for the Grus japonensis in the core area of Yancheng Rare Birds Nature Reserve

CHEN Siwen’，CHEN Hao²，LI Zhenghao²， XUE Jianhui 1，3 中

（1. Collegeof Ecologyand Environment，Nanjing Forestry University，Co-Innovation Center for Sustainable Forestry inSouthern China，Nanjing 210o37，China；2.Jiangsu Yancheng NationalRare Birds Nature Reserve Administration， Yancheng2240o，China;3.Instituteof Botany，Jiangsu Provinceand ChineseAcademyof Sciences，Nanjing，China）

Abstract：【Objective】Thisstudy quantitativelyassessed the wintering habitat suitability for theRed-crownedcrane （Grus japonensis）inthecore areaofYancheng NationalNatureReserve，JiangsuProvince，and identified keyfactors influencing habitatselection.Theresultsprovideascientificbasis for ecologicalrestorationandsustainable management of crane habitats.【Method】Utilizing the MaxEnt（MaximumEntropy）model integrated withGIS technology，habitat suitability wasevaluatedbasedonfivekeyenvironmentalfactors.Thecumulativecontributionofeachfactorwas analyzed.【Result】Habitat suitability was predominantlydeterminedby habitat typeand proximity to water.The primary environmental factors influencingcranedistributionwere distance towater，distance to Suaedasalsa，distanceto Spartinaalterniflora，distance to Phragmites australis，anddistance to bare mudflats，colectivelycontributing 92.5% ： The most suitable （ 1043.82hm2 ， 7.58% of total area）and highly suitable（ 1 674.09hm2 ， 12.13% ）zoneswere primarily located in the northwestern and southwestern sectors.The invasive s .alterniflora posesasignificant threatto crane habitat selection and food resource acquisition.In contrast，human disturbances had minimal impacton habitat suitability within the corearea.【Conclusion】Enhancing habitat suitabilityfor theRed-crowned crane necessitates focused protectionofwatersources，restorationofnative vegetation，andeffectivecontrolofSpartinaalterniflorainvasion

inthe core area of YanchengNational Nature Reserve.

Keywords： Red-crownedcrane（Grus japonensis）；habitatsuitability；MaxEnt model；GIS；Spartinaaltevniflora; YanchengRareBirdsNational Nature Reserve

栖息地由生物赖以生活和繁衍的生物与非生物环境组成[1]。（剩余18679字）