Journal Article

Dynamics and driving factors of water conservation services: a case study in the Ussuri River Basin, China

Zhang, Peng, Tian, Enpeng, Wang, Guangchang, Ni, Bingbo, Zou, Yuanchun, Zhu, Weihong, Zhang, Qiyao, Li, Guangyin, Liu, Yuyan, Yu, Jiaqi

2025

Overview

Context Water conservation services (WCs), which play an important role in ecosystem hydrological processes and sustainable water resource utilization, are mainly affected by the combination of climate change and land use. However, such impacts are still not effectively differentiated. Objectives This study aimed to (1) reveal the year-by-year changes in WCs in the Ussuri River Basin; (2) to quantify the contribution of climatic factors and land-use changes to WCs based on the year-by-year data; and (3) to clarify the mechanisms by which climate and land-use changes act on WCs. Methods The relative contributions of drivers (climate change and land use) to WCs were quantified based on year-by-year series data in a typical agricultural development watershed in China (Ussuri River Basin). Results The mean WCs were increasing from 2000 to 2020, with an annual mean of 16.45 mm and at an increasing rate of 0.39 mm/year⁻ 1 ( P  = 0.071). Climate change was the dominant factor in WCs, explaining 71% of the variation in WCs compared to 29% for land use. Forestland area (standardized path coefficients: β  = 0.797, P  < 0.05) and precipitation ( β  = 0.242, P  < 0.05) had direct and enhancing effects on WCs, implying that moisture and vegetation cover play important roles in influencing WCs in this study area. Although the high proportion of cropland shows a relatively low direct correlation with WCs, its strong correlation with forestland area indirectly contributes to the enhancement of WCs. The covariance of this indirect effect is approximately 0.8, suggesting a very strong interaction. Conclusions Rational regulation of water availability and land-use relationships enables the restoration of WCs in agricultural areas. This study underscores the pivotal role of anthropogenic land management in sustaining ecosystem services and water resources.

• Publisher: Springer Netherlands,Springer Nature B.V
• Subject: Agricultural development / Agricultural land / Agricultural watersheds / Biomedical and Life Sciences / case studies / China / climate / Climate change / covariance / cropland / Ecology / Ecosystem services / Ecosystems / Endangered & extinct species / Environmental Management / Environmental regulations / forest land / Human influences / Hydrology / Land management / Land use / Landscape Ecology / Landscape/Regional and Urban Planning / Life Sciences / Nature Conservation / Precipitation / Research Article / Resource utilization / River basins / River ecology / Rivers / Statistical analysis / Sustainable Development / Variables / Vegetation / Vegetation cover / Water availability / Water conservation / Water resources / Water resources management / Water shortages / Water supply / Watersheds / Wildlife conservation