生态与农村环境学报2024，Vol.40Issue(4)：521-531,11.DOI:10.19741/j.issn.1673-4831.2023.0960
城乡梯度变化视角下平原河网大型底栖动物多样性与土地利用关系初探
Relationship Between Macrobenthic Diversity and Land Use in the Plains River Network Area:A Perspective of Urban-rural Gradient Change
摘要
Abstract
There is a need to clarify the relationship between macrobenthic diversity and land use under urban-rural gradi-ent changes.This is crucial for river ecological restoration and protection,as well as regional land use planning.Taking the typical plain area in northern Jiangsu as a case,the relationship between macrobenthic community characteristics and land use structure under different urban-rural gradients was studied by using correlation analysis,principal component analysis and regression analysis.The results reveal that from north to south,as the level of urbanization increased,the area of pad-dy fields and ponds showed a decreasing trend,while the area of construction land and roads continued to increase.Be-sides,there was a decreasing trend in the diversity,species richness,abundance,and biomass of macrobenthos.In gener-al,the morphology and structure features of ponds,paddy fields,roads and construction land had a significant impact on macrobenthic diversity.Additionally,the changes including increased regularity in river morphology,greater complexity in construction land morphology,and declined neighborhood landscape diversity in ponds led to the decrease in the diversity of macrobenthic animals.It is recommended to strictly control the scale of construction land,and build an orderly land use pattern.Furthermore,to adopt paddy field cultivation as much as possible in agricultural areas where conditions permit,and foster diverse wetland landscape in suburban,peri-urban and urban areas.The results can provide scientific basis for optimizing land use pattern and establishing integrated regional management systems in river network areas.关键词
土地利用/大型底栖动物/景观格局/城乡差异/平原河网Key words
land use/macrobenthos/landscape pattern/urban-rural differences/plain river network分类
生物科学引用本文复制引用
魏宇星,李玉凤,邱春琦,王雨青,王刚,彭模..城乡梯度变化视角下平原河网大型底栖动物多样性与土地利用关系初探[J].生态与农村环境学报,2024,40(4):521-531,11.基金项目
国家自然科学基金(31971547,32271662) （31971547,32271662）
黄海湿地课题(HHSDKT202309) （HHSDKT202309）
南京师范大学跨学科研究项目(164320H1847) （164320H1847）
