四川省农业景观生态风险评价研究
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摘要
[目的]由自然环境和人文地理叠加形成的农业景观复杂多样,具有生产、生活、生态3种功能,随着农业生态环境日益遭受破坏,对其进行农业景观生态风险评价有利于促进区域农业的可持续发展。[方法]以四川省为例,从压力—状态—响应3方面构建农业景观生态风险评价指标体系,通过确定权重和隶属度大小,对研究区农业景观生态风险进行评价。[结果]根据模糊关系评价结果,四川省农业景观生态压力的最大值为0. 111,处于中等风险水平;生态状态的最大值为0. 139,处于中等风险水平;生态响应的最大值为0. 091,处于较低风险水平。[结论]四川省农业景观生态仍有很大的空间需要优化,农业景观生态对于维持农业生态系统具有重要意义,四川省未来在农业景观生态方面应保障且降低现有的生态风险等级,确保兼顾农业可持续发展和保护农业生态功能并举。
The agricultural landscape formed by the superposition of natural environment and human geography is complex and diverse. It has three functions of production,life and ecology. As the agricultural ecological environment is increasingly damaged,the ecological risk assessment of agricultural landscape is beneficial to promote the sustainable development of regional agriculture. Taking Sichuan province as an example,the evaluation index system of the ecological risk assessment of agricultural landscape was constructed from three aspects of pressure-stateresponse. The ecological risk of agricultural landscape in the study area was evaluated by determining the weight and membership degree. According to the fuzzy relationship evaluation results,the maximum ecological stress of agricultural landscape in Sichuan province is 0. 111,which is at medium risk level; the maximum ecological state is0. 139,which is at medium risk level; the maximum ecological response is 0. 091,which is at a lower risk level.Agricultural landscape ecology in Sichuan province still has a lot of space to be optimized. Agricultural landscape ecology is of great significance for maintaining agro-ecosystem. In the future,it should guarantee and reduce the existing ecological risk level in terms of agro-landscape ecology,and ensure both sustainable agricultural development and protection of agro-ecological functions in Sichuan province.
The agricultural landscape formed by the superposition of natural environment and human geography is complex and diverse. It has three functions of production,life and ecology. As the agricultural ecological environment is increasingly damaged,the ecological risk assessment of agricultural landscape is beneficial to promote the sustainable development of regional agriculture. Taking Sichuan province as an example,the evaluation index system of the ecological risk assessment of agricultural landscape was constructed from three aspects of pressure-stateresponse. The ecological risk of agricultural landscape in the study area was evaluated by determining the weight and membership degree. According to the fuzzy relationship evaluation results,the maximum ecological stress of agricultural landscape in Sichuan province is 0. 111,which is at medium risk level; the maximum ecological state is0. 139,which is at medium risk level; the maximum ecological response is 0. 091,which is at a lower risk level.Agricultural landscape ecology in Sichuan province still has a lot of space to be optimized. Agricultural landscape ecology is of great significance for maintaining agro-ecosystem. In the future,it should guarantee and reduce the existing ecological risk level in terms of agro-landscape ecology,and ensure both sustainable agricultural development and protection of agro-ecological functions in Sichuan province.
引文
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[10]刘焱序,王仰麟,彭建,等.基于生态适应性循环三维框架的城市景观生态风险评价.地理学报,2015,70(7):1052-1067.
[11]岳东霞,曾建军,邹明亮,等.基于PSR和熵权物元可拓模型的甘南高原生态环境风险评价研究.生态经济,2017,33(7):175-180.
[2]王妮,陈泰生,刘玉婵,等.基于适宜性评价的农业生态景观布局分析.湖北科技学院学报,2016,36(11):1-7.
[3]陈顺和,方志伟,周沿海.福建山水型小城镇景观生态规划策略研究———基于大田县桃源镇广汤村的规划实践.福建农林大学学报,2015,18(2):11-14.
[4]崔嘉昕,刘峻岭,李申,等.基于农业生态系统构建的土地整理景观生态规划途径.天津农业科学,2015,21(1):86-91.
[5]周旭.休闲农业生态景观设计研究.武汉:湖北工业大学,2016.
[6]胡晓聪.旅游业发展下融入农业景观生态开发探索.知识经济,2017(12):23-24.
[7]王洪成.亚布力国家森林公园森林景观格局分析及生态评价.哈尔滨:东北林业大学,2016.
[8]温亮,游珍,林裕梅,等.基于层次分析法的土地资源承载力评价———以宁国市为例.中国农业资源与区划,2017,38(3):1-6.
[9]宋高峰,潘卫东,杨敬虎,等.基于模糊层次分析法的厚煤层采煤方法选择研究.采矿与安全工程学报,2015,32(1):35-41.
[10]刘焱序,王仰麟,彭建,等.基于生态适应性循环三维框架的城市景观生态风险评价.地理学报,2015,70(7):1052-1067.
[11]岳东霞,曾建军,邹明亮,等.基于PSR和熵权物元可拓模型的甘南高原生态环境风险评价研究.生态经济,2017,33(7):175-180.