山东低山丘陵土地整治区耕地生态价值评价  

Evaluation on ecological value of arable land in hilly land consolidation region of Shandong province

作　　者：王瑷玲[1,2] 刘文鹏[3] 纪广韦[1] 李英[1] 

机构地区：[1]山东农业大学资源与环境学院,泰安271018 [2]山东农业大学资源与环境学院,土肥资源高效利用国家工程实验室,泰安271018 [3]山东省莱芜市国土资源局,莱芜271100

出　　处：《农业工程学报》2013年第A01期244-250,共7页Transactions of the Chinese Society of Agricultural Engineering

基　　金：山东省优秀中青年科学家科研奖励基金项目(2007BS08018);山东农业大学青年科技创新基金项目(23459)

摘　　要：耕地具有重要的生态价值,但难以定量评价。低山丘陵是中国土地整治的重要区域,整治前后耕地生态价值发生变化。该文以山东省莱芜市里辛土地整治项目为例,基于生态服务价值评价理论,采用替代法、市场定价法等方法,探讨了低山丘陵土地整治区耕地生态价值评价方法及整理前后耕地生态价值变化。结果表明,研究区耕地气体调节、营养循环、水源涵养和土壤保持4种生态服务功能的整理前后总价值分别为428.61和774.90万元,耕地具有较高的生态价值,其中气体调节价值最大。整理后耕地生态价值比整理前增加346.29万元,增值率80.79%,土地整理生态效益显著,其中气体调节价值增加最多。该研究方法对耕地生态价值定量评价有借鉴意义,评价结果可为莱芜市里辛土地整理绩效评价提供科学依据。Arable land not only has important agricultural production function and economic value, but also has ecological function and value, such as gas regulation, nutrient cycling, water conservation, soil conservation etc. But it is difficult to have quantitative evaluation on it. Low hills are important land consolidation areas in China, engineering and biological measures taken during land consolidation change the arable land area, soil properties, terrain slopes, irrigation conditions etc, which leads to changes in the ecological value of arable land in project area. Taking the Lixin land consolidation project of Laiwu city in Shandong province as an example, based on the ecological service value evaluation theory, the evaluation methods of arable land ecological value was proposed, the four ecological service values were calculated, including gas regulation, nutrient cycling, water conservation and soil conservation, and their values before land consolidation in low hilly region were compared with those after land consolidation in this paper. Gas regulation value was estimated by using carbon sequestration-oxygen making of crop and the substitution method. Before land consolidation, when the study area had no irrigation, peanuts were planting outdoors, biomass was lower, gas regulation value was 2.1848 million Yuan. After land consolidation, gas regulation value was 4.9441 million Yuan, the increase was 2.7593 million Yuan for production conditions improvement, mulching planting peanuts and biomass substantial increase. Nutrient recycling value was estimated by using soil pool nutrient cycling and market pricing method. After land consolidation, arable land area and soil thickness increased significantly, soil bulk density decreased and soil nutrient content decreased slightly. Nutrient cycling value was 1.3082 and 1.5855 million Yuan before and after land consolidation respectively, the increase was 277,300 Yuan after land consolidation. Water conservation value was estimated by using water conservation and market

关 键 词：土地利用 整治 规划 耕地 生态价值评价 

分 类 号：F301.3[经济管理—产业经济]