中文摘要：

从经济和生态效益2方面对青海省果洛州大武镇9龄黑土滩人工草地在人工调控下的效益进行核算,旨在为相关管理和决策部门就黑土滩建植人工草地的必要性和可行性提供参考依据。结果表明：人工调控下黑土滩人工草地9年内牧草的干草总产量为40993.0 kg·hm-2,自然演替下为21685.0 kg·hm-2,人为调控的经济效益较自然演替高5406.32 RMB.hm-2;混播人工草地生态系统服务价值和生态资产分别为15685.50$·hm-2·a-1和31224.5$·hm-2·a-1,单播人工草地生态系统分别为13087.50$·hm-2·a-1和26036.80$·hm-2·a-1,＂黑土滩＂退化草地生态系统分别为125.50$·hm-2·a-1和340.0$·hm-2·a-1;黑土滩退化草地生态服务价值和生态资产分别为未退化天然草地的1/5和1/3,为单播人工草地生态系统的1/104和1/76,为混播人工草地生态系统的1/125和1/92。因此,建议将人工草地生态系统的价值核算纳入草地生态系统补偿性保护和恢复的决策过程之中。

英文摘要：

Economic and ecological benefits of nine years sown grassland in black-soil-beach were assessed for providing useful databases of better management and decision-making on the sown grasslands.Results show： total yield of 9-year old sown grassland under management was 40993.00 kg·hm-2,while that was,21685.0 kg·hm-2 under natural succession.Economic benefit of sown grassland under management was 5406.42 RMB·hm-2 higher than that under nature succession.Ecological service and property value were 15685.5＄·hm-2·a-1 and 31224.5＄·hm-2·a-1 for mix-sown grassland,13087.5＄·hm-2·a-1 and 26036.8＄·hm-2·a-1 for singly-sown grassland,125.5＄·hm-2·a-1 and 340＄·hm-2·a-1 for black-soil-beach degraded grassland respectively.Ecological service and property value of black-soil-beach degraded grassland ecosystem were 1/5and 1/3 of non-degraded natural grassland respectively,1/104 and 1/76 of singly-sown grassland respectively,1/125 and 1/92 of mix-sown grassland respectively.Therefore,we suggest that value calculation should be considered during decision-making of compensatory conservation and recovery of grassland ecosystem.