Modeling and assessing the impacts of climate change on groundwater recharge in endorheic basins of Northwest China

Cheng, Wenju; Feng, Qi; Xi, Haiyang; Yin, Xinwei; Cheng, Lei; Sindikubwabo, Celestin; Zhang, Baiting; Chen, Yuqing; Zhao, Xinyue

doi:10.1016/j.scitotenv.2024.170829

Science of The Total Environment

2024

DOI: 10.1016/j.scitotenv.2024.170829

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Modeling and assessing the impacts of climate change on groundwater recharge in endorheic basins of Northwest China

Wenju Cheng,

Qi Feng,

Haiyang Xi

et al.

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Vegetation Dynamics and Driving Mechanisms Considering Time-Lag and Accumulation Effects: A Case Study of Hubao–Egyu Urban Agglomeration

Liu,

Du,

Zhang

et al. 2024

Land

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The Hubao–Egyu Urban Agglomeration (HBEY) was a crucial ecological barrier in northern China. To accurately assess the impact of climate change on vegetation growth, it is essential to consider the effects of time lag and accumulation. In this study, we used a newly proposed kernel Normalized Difference Vegetation Index (kNDVI) as the metric for vegetation condition, and employed partial correlation analysis to ascertain the lag and accumulation period of vegetation response to climate by considering different scenarios (No/Lag/Acc/LagAcc) and various combinations. Moreover, we further modified the traditional residual analysis model. The results are as follows: (1) From 2000 to 2022, the HBEY experienced extensive and persistent greening, with a kNDVI slope of 0.0163/decade. Precipitation was identified as the dominant climatic factor influencing vegetation dynamics. (2) In HBEY, the lag effect of temperature was most distinct, particularly affecting the vegetation in cropland and grassland. The accumulation effect of precipitation was pronounced in grassland. (3) Incorporating lag and accumulation effects into models increases the explanatory power of climate impacts on vegetation dynamics by 6.95% compared to traditional residual models. Our findings hold essential implications for regional ecological regulation and climate change response research.

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Vegetation Dynamics and Driving Mechanisms Considering Time-Lag and Accumulation Effects: A Case Study of Hubao–Egyu Urban Agglomeration

Liu,

Du,

Zhang

et al. 2024

Land

View full text Add to dashboard Cite

show abstract

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Modeling and assessing the impacts of climate change on groundwater recharge in endorheic basins of Northwest China

Cited by 1 publication

References 81 publications

Vegetation Dynamics and Driving Mechanisms Considering Time-Lag and Accumulation Effects: A Case Study of Hubao–Egyu Urban Agglomeration

Vegetation Dynamics and Driving Mechanisms Considering Time-Lag and Accumulation Effects: A Case Study of Hubao–Egyu Urban Agglomeration

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