Wang Jun, Yan Shen-Chun, Yu Li, Zhang Ya-Nan
Ying Yong Sheng Tai Xue Bao. 2014 Apr;25(4):1093-9.
Land consolidation, as one of the major driving forces for the changes of land use/cover, has significant impacts on landscape patterns, ecological functions, and ecosystem services. In this paper, a land consolidation project conducted in Da'an City, Jinlin Province, China, was selected to evaluate the ecosystem service values before and after land consolidation at three spatial scales, i. e., village, town, and county. The results indicated that the land consolidation with the goal to increase the area of cultivated land might cause the decrease of the saline and alkaline land, grassland, and wetland. In addition, land consolidation resulted in the reduction of the total ecosystem service values at varying degree at the three scales. Compared to the pre-consolidation status, the total post-consolidation ecosystem service values at the village, town and county scales were 7.96, 843.01 and 1205.86 million yuan, and reduced by 10.5%, 14.2% and 33.1%, respectively. Based on the evaluation of ecosystem service value, strategies of landscape ecological design were discussed to improve the ecological functions and to provide the guidance for the sustainable development of land consolidation.
土地整治作为土地利用/覆盖变化的主要驱动力之一，对景观格局、生态功能和生态系统服务有着重大影响。本文选取中国吉林省大安市开展的一个土地整治项目，在村、镇、县三个空间尺度上评估土地整治前后的生态系统服务价值。结果表明，以增加耕地面积为目标的土地整治可能导致盐碱地、草地和湿地面积减少。此外，土地整治在三个尺度上均不同程度地导致生态系统服务价值总量减少。与整治前状况相比，村、镇、县尺度整治后的生态系统服务价值总量分别为7.96亿元、843.01亿元和1205.86亿元，分别减少了10.5%、14.2%和33.1%。基于生态系统服务价值评估，探讨了景观生态设计策略，以改善生态功能，并为土地整治的可持续发展提供指导。
