农地整理前后生态系统服务价值变化测算
农地整理工程改变了整理区的土地利用类型,使其原生态系统的能量流、物质流和信息流发生改变,进而导致生态系统服务价值发生变化。依据不同的地貌类型,在湖北省境内选取3个典型项目作为研究对象,测算了农地整理前后项目区的生态系统服务价值。研究结果表明:新增耕地数量最多的是"竹山项目"、净增348.84 hm2,居中的是"当阳项目"、净增62.32 hm2,最少的是"钟祥项目"、净增44.27 hm2。3个农地整理项目区的生态系统服务价值都发生损失,"竹山项目"净减271.0×104元/年,"当阳项目"净减51.0×104元/年,"钟祥项目"净减8.0×104元/年。不同地貌类型项目区的单项生态系统服务价...
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Published in: | 广东农业科学 Vol. 39; no. 8; pp. 4 - 8 |
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Main Author: | |
Format: | Journal Article |
Language: | Chinese |
Published: |
华中农业大学土地管理学院,湖北武汉,430070%华中科技大学文华学院,湖北武汉,430074
2012
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Online Access: | Get full text |
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Summary: | 农地整理工程改变了整理区的土地利用类型,使其原生态系统的能量流、物质流和信息流发生改变,进而导致生态系统服务价值发生变化。依据不同的地貌类型,在湖北省境内选取3个典型项目作为研究对象,测算了农地整理前后项目区的生态系统服务价值。研究结果表明:新增耕地数量最多的是"竹山项目"、净增348.84 hm2,居中的是"当阳项目"、净增62.32 hm2,最少的是"钟祥项目"、净增44.27 hm2。3个农地整理项目区的生态系统服务价值都发生损失,"竹山项目"净减271.0×104元/年,"当阳项目"净减51.0×104元/年,"钟祥项目"净减8.0×104元/年。不同地貌类型项目区的单项生态系统服务价值损失存在较大差异,"竹山项目"的气体调节价值损失最大,"当阳项目"的气体调节价值损失最小;"竹山项目"的食物生产价值增加11.0×104元/年,"钟祥项目"增加1.0×104元/年。研究得到的政策启示:农地整理目标必须从新增耕地数量向更加注重耕地质量和生态环境转变,紧紧围绕和考虑生产、生活和生态,实施数量、质量、生态三位一体的整理模式。 |
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Bibliography: | 44-1267/S agricultural land consolidation; ecosystem services value; land use; sustainable development WU Jiu-xing,YANG Gang-qiao,HE Dan(1.College of Land Management,Huazhong Agricultural University,Wuhan 430070,China; 2.College of Wenhua,Huazhong University of Science and Technology,Wuhan 430074,China) The agricultural land consolidation project changed the land use type of the consolidation area,making energy flow,material flow,and information flow change of the original ecosystem,and make the ecosystem services value changed.According to different physiognomy,the "Dangyang Project" located in plain areas,"Zhongxiang Project" located in hilly areas,"Zhushan Project" located in the low mountain areas were selected as study area.Based on the change of land use types,Costanza's method of evaluating the world's ecosystem services and the Chinese ecosystem services value per unit area of different ecosystem tapes were applied in the estimation of ecosystem services value in the agricultural land consolidation proje |
ISSN: | 1004-874X |
DOI: | 10.3969/j.issn.1004-874X.2012.08.002 |