东北地区产水量时空分布格局及其驱动因素

发布时间：2018-09-04 06:24

【摘要】：近20年来,东北地区土地利用空间格局变化显著,且该区域处于我国最高纬度地区,是全球气候变化最敏感的区域之一,因此研究气候和土地利用变化对该区域水资源的影响,有助于该区域水资源的可持续管理。本研究基于1990年、2000年和2010年土地利用、气象和土壤数据,结合InVEST模型,研究近20年来东北地区产水量时空分布格局,并采用结构方程模型分析气候、土地利用变化对东北地区产水量的影响。结果表明,在1990—2010年间,中国东北地区产水量先降低后增加;空间尺度上,辽东山区、长白山区产水量较高、中部平原区产水量较低,而大、小兴安岭产水量则介于二者之间;结构方程模型分析表明,降水是导致东北地区产水量时空变化的主要因素,而温度和土地利用变化对研究区产水量的影响较小。
[Abstract]:In the last 20 years, the land use spatial pattern in Northeast China has changed significantly, and the region is in the highest latitude of China, which is one of the most sensitive regions of global climate change. Therefore, the impacts of climate and land use change on water resources in this region are studied. Contribute to the sustainable management of water resources in the region. Based on the data of land use, meteorology and soil in 1990, 2000 and 2010, and combined with InVEST model, the spatial and temporal distribution patterns of water production in Northeast China in recent 20 years were studied, and the climate was analyzed by structural equation model. Effects of Land use change on Water production in Northeast China. The results showed that the water production in Northeast China first decreased and then increased from 1990 to 2010, and on spatial scale, the water production was higher in Liaodong Mountain area and Changbai Mountain area, but lower in the Central Plain region. The structural equation model analysis shows that precipitation is the main factor leading to spatiotemporal variation of water production in Northeast China, while temperature and land use change have little effect on water production in the study area.
【作者单位】：中国科学院森林与管理重点实验室(沈阳应用生态研究所);中国科学院大学;吉林长白山西坡森林生态系统定位观测研究站;吉林省长白山科学研究院;辽宁省森林经营研究所;
【基金】：中国科学院重点部署项目(KFZD-SW-305-001)资助
【分类号】：TV213

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