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基于生态系统服务价值与粮食安全的生态安全底线核算
引用本文:何玲,贾启建,李超,许皞,.基于生态系统服务价值与粮食安全的生态安全底线核算[J].应用生态学报,2016,27(1):215.
作者姓名:何玲  贾启建  李超  许皞  
作者单位:(;1.河北农业大学国土资源学院, 河北保定 071000; ;2.河北农业大学农村发展学院, 河北保定 071000; ;3.中国农业大学资源与环境学院, 北京 100193; 4河北保定生态文明研究院, 河北保定 071000)
摘    要:河北省沿海经济的快速发展导致滨海土地利用结构快速转变,威胁土地生态安全.针对性核算滨海土地生态系统服务价值并测算生态安全底线可为区域生态保护和修复提供依据.本文以河北省东南部黄骅市为研究区,科学地选择生态安全与粮食安全的结合点、设计结合通道并创建结合方式,利用生态系统服务价值和粮食安全标准进行生态安全底线测算.结果表明: 2011年,研究区各地类单位面积生态系统服务价值大小依次为: 湿地>水域>园地>耕地>草地>其他土地>盐田>盐碱地>建设用地;各单项生态系统服务价值贡献率从大到小依次为: 养分循环>水源涵养>娱乐文化>物质生产>生物多样性维持>气体调节>气候调节>净化环境;单位面积耕地粮食产量底线为0.21 kg·m-2,粮食产值底线为0.41 元·m-2,单位面积土地生态系统服务价值底线为21.58 元·m-2,研究区土地生态服务总价值底线值为42.44亿元;2081年研究区生态安全达到底线,以人为主体的生态系统将濒临崩溃.根据生态安全状况,黄骅市可分为生态核心保护区、生态缓冲区、生态恢复区和人类活动核心区.


Calculation on ecological security baseline based on the ecosystem services value and the food security
HE Ling,JIA Qi-jian,LI Chao,XU Hao,.Calculation on ecological security baseline based on the ecosystem services value and the food security[J].Chinese Journal of Applied Ecology,2016,27(1):215.
Authors:HE Ling  JIA Qi-jian  LI Chao  XU Hao  
Institution:(;1.College of Land and Resources, Agricultural University of Hebei, Baoding 071000, Hebei, China; ;College of Rural Development, Agricultural University of Hebei, Baoding 071000, Hebei, China; ;College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; 4Baoding Institute of Ecological Civilization of Hebei, Baoding 071000, Hebei, China)
Abstract:The rapid development of coastal economy in Hebei Province caused rapid transition of coastal land use structure, which has threatened land ecological security. Therefore, calculating ecosystem service value of land use and exploring ecological security baseline can provide the basis for regional ecological protection and rehabilitation. Taking Huanghua, a city in the southeast of Hebei Province, as an example, this study explored the joint point, joint path and joint method between ecological security and food security, and then calculated the ecological security baseline of Huanghua City based on the ecosystem service value and the food safety standard. The results showed that ecosystem service value of per unit area from maximum to minimum were in this order: wetland, water, garden, cultivated land, meadow, other land, salt pans, saline and alkaline land, constructive land. The order of contribution rates of each ecological function value from high to low was nutrient recycling, water conservation, entertainment and culture, material production, biodiversity maintenance, gas regulation, climate regulation and environmental purification. The security baseline of grain production was 0.21 kg·-2, the security baseline of grain output value was 0.41 yuan·m-2, the baseline of ecosystem service value was 21.58 yuan·m-2, and the total of ecosystem service value in the research area was 4.244 billion yuan. In 2081 the ecological security will reach the bottom line and the ecological system, in which human is the subject, will be on the verge of collapse. According to the ecological security status, Huanghua can be divided into 4 zones, i.e., ecological core protection zone, ecological buffer zone, ecological restoration zone and human activity core zone.
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