中文摘要：

研究目的：认识和理解耕地资源损失过程。研究方法：基于中国成功研制出的世界上首套30m分辨率2000-2010年G10beLand30数据，利用GIS空间分析方法，综合分析环渤海地区耕地资源损失流向、质量和空间特征。研究结果：2000-2010年，环渤海地区土地利用／覆盖变化剧烈，耕地资源明显减少，主要损失流向为人造覆盖、草地、水体和森林；耕地资源损失区域主要位于降水量较少、海拔较高等耕作条件较差的地区；耕地资源重心总体向东南方向移动，破碎化程度日趋严重。研究结论：基于GlobeLand30数据的耕地资源损失过程研究能有效揭示耕地资源损失流向、质量和空间特征，为区域耕地资源利用与保护提供了积极借鉴和参考。

英文摘要：

The purpose of this paper is to recognize and understand the loss process of cultivated land. The loss process of cultivated land in Bohai Rim is synthetically analyzed by GIS spatial analysis method from three aspects, namely flow direction, quality and spatial characteristics. The GlobeLand30 data developed by China, which is the first land use/cover data from 2000 to 2010 with 30 m resolution in the world, is used in the paper. The results showed that the land use/cover experienced drastic change in Bohai Rim from 2000 to 2010. The cultivated land resources reduced obviously and mainly converted to artificial surfaces, grass lands, water areas and forests. The loss areas of cultivated land were mainly located in the district with tillage conditions, where had less precipitation with higher altitude. The gravity center of cultivated land generally moved towards the southeast while the fragmentation of cultivated land was aggravated. The conclusion is that the research based on GlobeLand30 can effectively reveal the flow direction, quality and spatial characteristics of cultivated land loss. It provides positive references for the utilization and protection of regional cultivated land.