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
作 者:曹晓昌[1,2] 甄霖[1] 杨莉[1,2] 龙鑫[1,2] 杜秉贞[3] 魏云洁[1,2] 李芬
机构地区:[1]中国科学院地理科学与资源研究所,北京100101 [2]中国科学院研究生院,北京100049 [3]瓦格宁根大学 [4]深圳市建筑科学研究院有限公司北京研创中心,北京100044
出 处:《Journal of Resources and Ecology》2011年第4期345-352,共8页资源与生态学报(英文版)
基 金:National Basic Research Program of China (2009CB421106);the Knowledge Innovation Program of CAS (KZCX2-EW-306);Special Funds for Sino-EU Cooperation of MOST (0813);National Key Project of Science and Technical Supporting Programs of China (2008BAK50B05)
摘 要:This paper presents cognitive awareness levels of ecosystem services and their consumption by farmers in Guyuan City, which lies in the Jinghe watershed. Household Surveys and Participatory Rural Assessment (PRA) were used to determine differences in farmers cognitive awareness levels. The household survey results showed that farmers have a cognitive awareness of 11 ecosystem services: food supply, air purification, environmental purification, soil and water conservation, clean water supply, natural disaster minimization, increasing income, fuel wood supply, aesthetic recreation, fodder supply and sand stabilization. The job-related requirements of a farmers’ daily life, their direct consumption of ecosystem services and the importance of ecosystem services to them all influence their cognitive awareness of ecosystem services. Through group interviews the PRA method can provide the opportunity for information exchange and discussion. The process can help farmers to gain more cognitive awareness of ecosystem services. Large changes in ecosystem services have been observed in the study area. Food production and fuel wood supply have decreased markedly, yet incomes have increased. Spatial and temporal variables, changes in ecosystem services and the level of income all have an impact on farmers’ food supply and resource consumption. Overall, the total consumption of food (cereal and potato) and fuel wood declines for most farmers and consumption of vegetables, meat, coals and gas have increased.本文以黄土高原泾河流域上游固原市为例,采用农户问卷调查和参与式社区评估方法,研究农户对生态系统服务认知及消费,并对两种方法认知结果进行比较分析。研究发现,农户问卷调查方法农户认知到食物供给、净化空气、净化环境、水土保持、供给洁净水、减少自然灾害、提高收入、薪柴供给、景观愉悦、牧草供给和防风固沙11项生态系统服务,农户日常对生态系统服务的占有和消耗及生态系统服务对农户的重要性程度影响农户对生态系统服务的认知;参与式社区评估(PRA)方法农户可以充分进行信息交流与讨论,与农户问卷调查法相比对生物多样性服务有了认知。研究区生态系统服务发生很大变化,食物供给和薪柴供给服务明显减弱,收入增加;受生态系统服务变化及收入水平的影响,农户食物和能源消费存在明显时空差异,总体而言,农户食物消费总量下降,大部分农户薪柴消费数量减少,农户对蔬菜、肉类、煤炭、天然气等的消费量增加。
关 键 词:ecosystem service consumption ecosystem service cognitive level household surveys Participatory Rural Assessment (PRA)
分 类 号:X171[环境科学与工程—环境科学]
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:216.73.216.249