基于生态系统服务的农安县景观生态风险评价
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摘要
当前,吉林省西部面临着湿地草原退化、沙化、盐碱化等生态问题,农安县是吉林省重要的商品粮基地,也是长春市西北部生态屏障,开展区域生态风险评价对于统筹开展生态保护与修复、打好吉林省污染防治攻坚战具有重要意义。研究表明,通过对曾勇提出的区域生态风险定量评价方法进行部分改进,可用于定量评价区域生态风险随时间的变化,同时拓展了该评价方法在生态研究和规划领域的适用范围。基于改进的生态风险评价方法,应用ArcGIS和Fragstats软件对农安县景观生态风险进行评价,在此基础上提出了具有针对性的生态风险分区管控对策。这为区域多尺度生态风险研究和相关规划提供了可行的方法,并为切实保障长春市乃至吉林省中西部地区生态安全提供一定的参考价值。
At present,the western part of Jilin Province is faced with ecological problems such as degradation of wetland and grassland,desertification and salinization,etc. Nong'an County is not only an important commodity grain base of Jilin Province but also an ecological barrier on the northwest of Changchun City. So it is important to carry out regional ecological risk assessment for both the overall development of ecological protection and restoration and the storming fortification of pollution prevention and control in Jilin Province.By partially improving the quantitative evaluation method of regional ecological risk proposed by Zeng Yong,the method could now be used to quantitatively evaluate the variation with time of regional ecological risk,and therefore the application range of the method in the field of ecological research and ecological planning is expanded. Based on the improved method of ecological risk assessment,this study uses software such as ArcGIS and Fragstats to evaluate the landscape ecological risk of Nong'an County.Based on this,relevant strategies and tactics of zoning management and control for regional ecological risk have been proposed.This study not only provides a feasible method for multi-scale research and planning of regional ecological risk,but also provides reference value for the ecological security guarantee of Changchun City and even of the midwest region of Jilin Province.
At present,the western part of Jilin Province is faced with ecological problems such as degradation of wetland and grassland,desertification and salinization,etc. Nong'an County is not only an important commodity grain base of Jilin Province but also an ecological barrier on the northwest of Changchun City. So it is important to carry out regional ecological risk assessment for both the overall development of ecological protection and restoration and the storming fortification of pollution prevention and control in Jilin Province.By partially improving the quantitative evaluation method of regional ecological risk proposed by Zeng Yong,the method could now be used to quantitatively evaluate the variation with time of regional ecological risk,and therefore the application range of the method in the field of ecological research and ecological planning is expanded. Based on the improved method of ecological risk assessment,this study uses software such as ArcGIS and Fragstats to evaluate the landscape ecological risk of Nong'an County.Based on this,relevant strategies and tactics of zoning management and control for regional ecological risk have been proposed.This study not only provides a feasible method for multi-scale research and planning of regional ecological risk,but also provides reference value for the ecological security guarantee of Changchun City and even of the midwest region of Jilin Province.
引文
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[2]周利军,张雪萍,陈设.扎龙自然保护区土地利用变化与生态风险评价[J].自然灾害学报,2009(2):186-190.
[3]巩杰,赵彩霞,谢余初,等.基于景观格局的甘肃白龙江流域生态风险评价与管理[J].应用生态学报,2014(7):2041-2048.
[4]张月,张飞,周梅,等.干旱区内陆艾比湖区域景观生态风险评价及时空分异[J].应用生态学报,2016,27(1):233-242.
[5]潘竟虎,刘晓.疏勒河流域景观生态风险评价与生态安全格局优化构建[J].生态学杂志,2016,35(3):791-799.
[6]李月月,黄义雄,杨阳,等.基于景观结构的福建省沿海生态风险时空特征[J].水土保持通报,2018,38(4):241-246.
[7]曾勇.区域生态风险评价——以呼和浩特市区为例[J].生态学报,2010,30(3):668-673.
[8]刘红玉,吕宪国,张世奎,等.三江平原流域湿地景观破碎化过程研究[J].应用生态学报,2005,16(2):289-296.
[9]汤洁,李红薇,李昭阳,等.太平池湿地区域生态系统服务价值对土地利用变化的响应[J].江苏农业科学,2017,45(7):224-230.
[10]汪雪格,王彦梅,魏春凤.吉林省西部湿地现状及恢复改善对策[C]//2017第九届全国河湖治理与水生态文明发展论坛论文集.北京:中国水利技术信息中心,2017:72-75.
[11]庞治国,李纪人,李取生.吉林西部盐碱化土地空间变化及防治措施[J].国土资源遥感,2004(2):56-60.