检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
出 处:《湖南农业大学学报(自然科学版)》2009年第4期427-432,共6页Journal of Hunan Agricultural University(Natural Sciences)
基 金:国家"863"计划项目(2008AA10Z213)
摘 要:运用直接市场评价法和间接市场评价法对免耕抛秧稻-鸭生态种养模式、免耕抛秧不养鸭种植模式、翻耕抛秧不养鸭种植模式生态系统物质生产功能、调节大气功能、节水功能、涵养水源功能、营养物质保持功能等价值进行了货币化定量评价.结果表明:免耕抛秧稻-鸭生态种养模式生态系统服务价值为22080.28元/hm2,比免耕抛秧不养鸭高54.83%,比翻耕抛秧不养鸭高73.92%.免耕抛秧稻-鸭生态种养模式物质生产功能价值为10198.70元/hm2,调节大气功能价值为9521.92元/hm2,节水功能价值为871元/hm2,营养物质保持功能价值为847.33元/hm2,涵养水源功能价值为641.33元/hm2.By way of direct and indirect marketing evaluation, contrastive study of monetized quantitative evaluation has been made on duck-ecosystem with no-tillage seedling-throwing rice, no-tillage cropping patterns with no duck-breeding, tillage cropping patterns with no duck-breeding three kinds of rice patterns of ecosystem function of material production, adjustment function of atmosphere, water-saving function, water conservation function, nutrient-retaining function and so on. The results show that the value of duck-ecosystem services with no-tillage seedling-throwing rice is 22 080.28 Yuan/hm2, which is 54.83% higher than that of no-tillage cropping patterns with no duck-breeding, while the value of rice-duck planting ecosystem services with no-tillage is 73.92% higher than that of tillage cropping patterns with no duck-breeding. The value of the service functions of rice-duck planting ecosystem are as follows: The value of material production function is 10 198.70 Yuan/hm2. The value of the atmosphere adjustment function was 9 521.92 Yuan/hm2. The value of water-saving function is 871 Yuan/hm2. The value of nutrient-retaining function is 847.33 Yuan/hm2 and the value of water conservation function is 641.33 Yuan/hm2.
关 键 词:免耕 稻-鸭种养 生态系统服务功能 货币化定量评价
分 类 号:S181[农业科学—农业基础科学]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.208