Sensitivity analysis of ecological environment in Dongchuan district based on GIS

doi:10.13474/j.cnki.11-2246.2022.0068

Abstract

Abstract: The sensitivity of ecological environment in Dongchuan district is analyzed by using GIS technology and analytic hierarchy process (AHP).Five evaluation indexes are selected in this study.Firstly,the single factor evaluation is carried out,and then the comprehensive ecological sensitivity of Dongchuan district is divided into five grades based on GIS spatial analysis function.Finally,the comprehensive ecological sensitivity distribution map of Dongchuan district is constructed.The results show that:① Among the five ecological evaluation factors,the slope factor has the greatest impact on the eco-environmental sensitivity of Dongchuan district,with the weight value of 0.36.According to the degree of impact on ecological sensitivity,the order is that it is:slope,elevation,land use,NDVI and water buffer zone.② The eco-environmental sensitivity of Dongchuan district is on the high side,and the extremely sensitive area and the highly sensitive area account for 44.17% of the total area,the medium sensitive area account for 26.1% of the total area,and the sum of the low sensitive area and the extremely low sensitive area account for 29.73%.③ In Dongchuan district,the most sensitive and highly sensitive areas are mainly distributed in the northwest,while the most low sensitive and low sensitive areas are mainly distributed in the northeast and the central valley.

Key words: GIS;Dongchuan district;ecological evaluation factors;ecological sensitivity

CLC Number:

YANG Yiyuan, YANG Cunjian. Sensitivity analysis of ecological environment in Dongchuan district based on GIS[J]. Bulletin of Surveying and Mapping, 2022, 0(3): 7-12.

References

[1] 贾毅竹,胡艳,孙世军.基于综合生态评价指标体系的城市生态效益研究[J].科学技术与工程, 2010, 10(33):8191-8195.
[2] 欧阳志云,王效科,苗鸿.中国生态环境敏感性及其区域差异规律研究[J].生态学报, 2000, 20(1):9-12.
[3] 徐升,弓晓峰,刘春英,等.贵溪冶炼厂周边土壤重金属污染分析与生态风险评价[J].南昌大学学报(理科版), 2015, 39(1):96-102.
[4] 赵荣钦,秦明周.中国沿海地区农田生态系统部分碳源/汇时空差异[J].生态与农村环境学报, 2007, 23(2):1-6.
[5] 齐瑶娣.滁州市农村土地生态服务功能分析[J].农村经济与科技, 2017, 28(21):17-19.
[6] 李阳兵,邵景安,王世杰,等.基于岩溶生态系统特性的水土流失敏感性评价[J].山地学报, 2007, 25(6):671-677.
[7] 鲁敏,孔亚菲.生态敏感性评价研究进展[J].山东建筑大学学报, 2014, 29(4):347-352.
[8] 李广娣,冯长春,曹敏政.基于土地生态敏感性评价的城市空间增长策略研究:以铜陵市为例[J].城市发展研究, 2013, 20(11):69-74.
[9] 陈鹏,庄孔造,蔡鹭春.厦门城市空间拓展的生态敏感性评价[J].地球信息科学学报, 2013, 15(3):389-394.
[10] 贾良清,欧阳志云,赵同谦,等.安徽省生态功能区划研究[J].生态学报, 2005, 25(2):254-260.
[11] 张广创,王杰,刘东伟,等.基于GIS的锡尔河中游生态敏感性分析与评价[J].干旱区研究, 2020, 37(2):506-513.
[12] 黄发明,杨光照,苏晨旭,等.基于GIS和层次分析法的县域生态敏感性评价[J].南昌大学学报(理科版), 2019, 43(6):599-605.
[13] 吴金华,李纪伟,朱鸿儒.基于ArcGIS区统计的延安市土地生态敏感性评价[J].自然资源学报, 2011, 26(7):1180-1188.
[14] 王淑静.金沙江流域典型生态脆弱县土地生态安全评价研究:以云南东川区为例[D].昆明:云南财经大学, 2019.
[15] 初庆伟,张洪群,吴业炜,等. Landsat-8卫星数据应用探讨[J].遥感信息, 2013, 28(4):110-114.
[16] 张亚丽,胡希军,陈存友.基于GIS平台的东山岛生态保护红线划定研究[J].生态科学, 2020, 39(6):137-145.
[17] 邹洪坤,胡勇,李艳红,等.基于GIS的西宁市生态敏感性分析[J].测绘与空间地理信息, 2018, 41(4):21-24.
[18] 谢泳龙,罗俊杰.基于GIS的增城生态环境敏感性分析[J].环境科学导刊, 2018, 37(4):76-80.
[19] 吴昆,彭红霞,李江风,等.基于变异系数法的灵宝市土地生态敏感性分析[J].湖北农业科学, 2018, 57(14):32-37.