中文摘要：

为研究区域规划土地利用结构对陆地生态系统碳储量的影响,该文引入数据包络分析法,对江苏省及13市土地利用总体规划（2006-2020年）用地结构的相对碳效率进行了评价：江苏省规划土地利用结构均是相对有效的;13市2005年相对有效性比例为38.46%,2010和2020年相对有效性比例分别为38.46%和46.15%;除江苏省相对有效外,13市2005、2010和2020年相对有效性比例分别为23.08%、30.77%、38.46%;建设用地比例明显偏高是相对无效的主要原因,耕地、林地冗余亦有一定贡献。结果表明,规划有助于提高区域土地利用结构的相对碳效率;相对无效的市提高碳效率的主要方向是节约集约利用建设用地,控制建设用地扩张,对于耕地、林地等,考虑到粮食安全和碳汇功能不宜再缩减比例,只能通过加强农林实践管理增加碳储备,以提高其对生态系统碳储量的贡献。

英文摘要：

To study the impacts of planning land use structure on carbon storage of terrestrial ecosystem,data envelopment analysis was introduced.The relative carbon efficiency of land use structure in general land use planning（2006-2020） was appraised in Jiangsu Province and its 13 cities,which carbon efficiency of land use structure was DEA efficient;38.64%,38.64% and 46.15% of 13 cities were DEA efficient in 2005,2010 and 2020,respectively;Besides Jiangsu provincial level,23.08%,30.77% and 38.46% of 13 cities was DEA efficient in 2005,2010 and 2020,respectively.Excessive constructive land was the key reason of inefficiency,redundant forest land and agrarian land also had contribution to it.It concludes that planning is efficient to some extent,and to the inefficient cities,it is primary to utilize constructive land economically and intensively.As to forest land and agrarian land,it is inadvisable to reduce the ratios because of their functions of food security and carbon sink,and the best choice is to carry out good practice to increase carbon sink and improve their contribution to ecosystem carbon storage.