土地整理项目的生态环境影响评价——以南充市S镇为例
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摘要
土地整理是实现土地资源可持续利用的重要途径,其根本目的在于协调人地矛盾和保护耕地,但土地整理过程会对生态环境产生重要影响。从水环境、土壤环境、生物环境和社会环境四个层面选取11个指标构建基于层次分析法的物元模型,并以此为基础对S镇土地整理项目进行生态环境影响评价,结果发现:S镇在土地整理前的生态环境评价等级为"差",土地整理后的等级为"较好";在土地整理过程中,S镇的土壤肥力指数、土壤质量、土地垦殖率和人均耕地等指数向好,取得了良好的综合效益。为了进一步改进和完善土地整理工作,减少土地整理对生态环境的影响,在今后的土地整理过程中一定要合理利用水资源、提高水资源的利用率,保护好生物多样性、提高植物覆盖率,建立土地整理生态环境保护和管理机制,等等。
The land consolidation project,a key way to achieve sustainable use of land resources,can resolve the conflicts between people and land,and protect the cultivated land. However,land consolidation will have an important impact on the ecological environment. Eleven indicators concerning water,soil,biological and social environment are selected to build the matter-element model based on the analytic hierarchy process. On this basis,this paper evaluates the effect of the land consolidation project in S Town on ecological environment. The results show that S town's ecological environment was evaluated as"bad"before the land consolidation project but"good"after that. In the process of land consolidation,soil quality,soil fertility index,land reclamation rate,vegetation coverage and per capita cultivated land are all improving,thus generating good comprehensive benefits. In order to further improve the land consolidation and reduce negative influence on ecological environment,we advise that in future land consolidation projects,we must utilize water resources more effectively,raise vegetation coverage and protect the biodiversity,and establish the mechanism of ecological protection and management in land consolidation.
The land consolidation project,a key way to achieve sustainable use of land resources,can resolve the conflicts between people and land,and protect the cultivated land. However,land consolidation will have an important impact on the ecological environment. Eleven indicators concerning water,soil,biological and social environment are selected to build the matter-element model based on the analytic hierarchy process. On this basis,this paper evaluates the effect of the land consolidation project in S Town on ecological environment. The results show that S town's ecological environment was evaluated as"bad"before the land consolidation project but"good"after that. In the process of land consolidation,soil quality,soil fertility index,land reclamation rate,vegetation coverage and per capita cultivated land are all improving,thus generating good comprehensive benefits. In order to further improve the land consolidation and reduce negative influence on ecological environment,we advise that in future land consolidation projects,we must utilize water resources more effectively,raise vegetation coverage and protect the biodiversity,and establish the mechanism of ecological protection and management in land consolidation.
引文
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[16]樊敏,刘耀林,吴艳娟,杨啸滪.基于云模型的土地整理生态影响评价研究[J].武汉大学学报(信息科学版),2008(9):986-989.
[2]王军,李正,白中科,鞠正山,王国茹.土地整理对生态环境影响的研究进展与展望[J].农业工程学报,2011,27(S1):340-345.
[3]王军,严慎纯,余莉,张亚男.土地整理的生态系统服务价值评估与生态设计策略以吉林省大安市土地整理项目为例[J].应用生态学报,2014,25(4):1093-1099.
[4]李岩,欧名豪,赵庚星.土地整理的区域生态环境影响评价研究[J].生态环境学报,2010,19(2):398-403.
[5]欧阳彦,刘秀华.基于熵权物元可拓模型的土地整理生态环境影响评价以老河口市孟楼镇基本农田整理项目为例[J].西南师范大学学报(自然科学版),2009,34(6):67-74.
[6]丁向华,姜照勇,罗良伟,王永志,廖春花,王挺之.基于生态环境保护视角的土地整理生态效益评价以成都市三河镇土地整理项目为例[J].资源科学,2011,33(11):2055-2062.
[7]蔡文.物元模型及其应用[M].北京:北京科学技术文献出版社,1994:21-31.
[8]申晓强,刘志斌,朱志宇.基于物元分析模型的土地整理生态环境影响评价[J].西北农林科技大学学报(自然科学版),2012,40(7):173-180.
[9]田劲松,过家春,刘琳,张庆国.基于物元模型的土地整理经济效益评价[J].水土保持通报,2012,32(5):107-112.
[10]吴冠岑,刘友兆,付光辉.基于熵权可拓物元模型的土地整理项目社会效益评价[J].中国土地科学,2008(5):40-46.
[11]郭金玉,张忠彬,孙庆云.层次分析法的研究与应用[J].中国安全科学学报,2008(5):148-153.
[12]邓雪,李家铭,曾浩健,陈俊羊,赵俊峰.层次分析法权重计算方法分析及其应用研究[J].数学的实践与认识,2012,42(7):93-100.
[13]李艳萍,乔琦,柴发合,姚扬,白璐,扈学文.基于层次分析法的工业园区环境风险评价指标权重分析[J].环境科学研究,2014,27(3):334-340.
[14]贾芳芳.土地整理效益评价研究[D].北京:北京林业大学,2007.
[15]卢勇辉,詹长根,欧阳彦,郭淑红.基于熵权模糊物元模型的土地整理生态环境影响评价以湖北省老河口市孟楼镇基本农田整理项目为例[J].国土资源科技管理,2009,26(3):23-28.
[16]樊敏,刘耀林,吴艳娟,杨啸滪.基于云模型的土地整理生态影响评价研究[J].武汉大学学报(信息科学版),2008(9):986-989.