• 研究报告 •

“两屏三带”生态系统格局变化及其影响因素

1. 1长安大学地球科学与资源学院， 西安 710054；2陕西省土地工程重点实验室， 西安 710054）
• 出版日期:2019-07-10 发布日期:2019-07-10

Ecosystem pattern change and its influencing factors of “two barriers and three belts”.

WANG Xiao-feng1,2*, LESImu-chu1, ZHANG Ming-ming1

1. (1School of Earth Sciences and Resources, Chang’an University, Xi’an 710054, China; 2Shaanxi Provincial Key Laboratory of Land Engineering, Xi’an 710054, China).
• Online:2019-07-10 Published:2019-07-10

Abstract: The “two barriers and three belts” is an important part of China’s national ecological security strategic pattern. Understanding the spatialtemporal distribution and transformation of ecosystem types in the barrier is important for the sustainable development of the barrier and the construction of ecological civilization. Based on the land use data of 30m resolution in 2000, 2005, 2010 and 2015, the spatial and temporal changes of ecosystem types in barrier areas from 2000 to 2015 were analyzed by the methods of ecosystem pattern change analysis, land transfer matrix, PNTIL model and geographical detectors model. Furthermore, the influencing factors of forward/reverse transformation of ecosystems were discussed. Urban expansion and agricultural land change were the most significant phenomena in the process of ecosystem change from 2000 to 2015. The negative conversion rate of ecosystems in barrier was slightly higher than the positive conversion rate. The negative transformation of ecosystems in barrier had obvious directions of population development, economic development and industrial development. The impacts of natural environmental factors on the positive transformation of ecosystems were significantly greater than those of socio-economic factors. There was a significantly positive correlation between socio-economic factors and the reverse transformation of ecosystems, but no significant correlation between socio-economic factors and the positive transformation of ecosystems. As the “natural constraining force” of ecosystem changes, the natural environmental factors had a significant correlation with the reverse or positive transformation of ecosystems.