Pang Jiao, Guo Xin-Yu, Li Chen-Yang, Huang Xue-Han, Zhang Yu-Wen, Shan Jing, Miao Zi-Han, Su Wen-Ge, Yan Feng, Chen Ya-Heng
Bohai College, Hebei Agricultural University, Huanghua 061100, China.
College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
Huan Jing Ke Xue. 2025 Jul 8;46(7):4370-4381. doi: 10.13227/j.hjkx.202407062.
The Taihangshan-Yanshan Region （TYR） is an important ecological barrier region for Beijing-Tianjin-Hebei. The effectiveness of its ecological protection is of great significance to the ecological security pattern of Northern China. In this study， based on the 22 a long time series of fractional vegetation cover （FVC） data from 2000-2021， we explored the spatial and temporal succession process of vegetation cover in the TYR by using methods such as spatio-temporal heterogeneity analysis and correlation analysis and quantitatively separated the contributions of climate change and human activities to the impact of the FVC. The results showed that： ① The FVC in the TYR showed a slowly fluctuating upward trend，with an average growth rate of 0.022 2 a. FVC is increasing more than stabilising and decreasing， especially in the western Yanshan and the central and western Taihangshan， with a highly significant increasing trend and a spatial distribution of 'high in the north-west and low in the south-east". ② The results of the partial correlation analysis indicated a positive correlation between vegetation cover and precipitation in most areas of the TYR. However， there was a negative correlation with temperature， although it was not statistically significant. The correlation analysis suggested that meteorological factors alone or in combination had limited ability （no more than 14.00%） to influence the evolution of the FVC， so it is likely that other factors were involved. ③ The residual results indicated the significance of anthropogenic factors and supported the compound correlation findings. Climate change and human activities together affected 74.25% and 69.75% of the improved and degraded areas， respectively. The area that had improved due to human activity accounted for 80.80% and was mainly distributed in the north-central TYR. The degraded area was mainly concentrated in the south-central Yanshan and eastern Taihangshan， where the human activity-driven area accounted for as much as 76.78%. The conclusions of the study can provide an important reference for ecological environmental protection and restoration.
太行-燕山地区（TYR）是京津冀重要的生态屏障地区。其生态保护成效对中国北方生态安全格局具有重要意义。本研究基于2000—2021年22年长时间序列的植被覆盖度（FVC）数据，运用时空异质性分析、相关性分析等方法，探究了太行-燕山地区植被覆盖的时空演变过程，并定量分离了气候变化和人类活动对FVC变化的贡献。结果表明：①太行-燕山地区FVC呈缓慢波动上升趋势，平均增长率为0.022 2/a。FVC增长多于稳定和减少，尤其在燕山以西及太行山中西部，呈极显著上升趋势，空间分布为“西北高东南低”。②偏相关分析结果表明，太行-燕山地区大部分区域植被覆盖与降水呈正相关。然而，与气温呈负相关，尽管不具有统计学显著性。相关性分析表明，单一或综合气象因素对FVC演变的影响能力有限（不超过14.00%），因此可能涉及其他因素。③残差结果表明了人为因素的重要性，并支持了复合相关性研究结果。气候变化和人类活动分别共同影响了74.25%的改善区域和69.75%的退化区域。因人类活动改善的区域占80.80%，主要分布在太行-燕山地区中北部。退化区域主要集中在燕山中南段和太行山以东，其中人类活动驱动的区域占比高达76.78%。研究结论可为生态环境保护与修复提供重要参考。
