Distribution characteristics and influencing factors of water resources in Henan Province

IF 2.7 4区环境科学与生态学 Q2 Environmental Science

Hydrology Research Pub Date : 2023-03-17 DOI:10.2166/nh.2023.096

Yishuang Zhou, Xiaoxia Tong, R. Gan, Panfeng Liu, Lin Guo, Shan-shan Zhao

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引用次数: 0

Abstract

A clear understanding of the spatial and temporal distribution characteristics of water resources is essential for the optimal allocation and sustainable utilization of water resources. In this paper, the spatial and temporal distribution characteristics of water resources in Henan Province were studied based on GIS, combining the Mann-Kendall (M-K) nonparametric test and rescaled range (R/S) analysis. In addition, SPSS software was used to analyze the influence of climate and land use type on water resources. The results indicated that (1) the hot spots of water resources were concentrated in the southwest, while the low values were concentrated in the northeast, and the distribution of water resources decreased from southwest to northeast. (2) In the past 21 years, spatiotemporal mutations in the water resource sequence occurred between 2010 and 2014. The Z-values of the M-K trend test were all less than 0, the H-values of groundwater resources (GWRs) were mostly greater than 0.5, and the h-values of surface water resources (SWRs) and total water resources (TWRs) were less than 0.5, showing an overall declining trend. However, this trend may change in the future. (3) From the correlation analysis, climate change had a greater impact on water resources than land use changes did.

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河南省水资源分布特征及影响因素

明确水资源的时空分布特征，对水资源的优化配置和可持续利用至关重要。基于GIS，结合Mann-Kendall (M-K)非参数检验和重标差(R/S)分析，研究了河南省水资源的时空分布特征。此外，利用SPSS软件分析气候和土地利用类型对水资源的影响。结果表明:(1)水资源热点集中在西南，低值集中在东北，水资源分布由西南向东北递减。(2)在过去21年中，水资源序列的时空变化主要发生在2010 - 2014年。M-K趋势检验的z值均小于0，地下水资源h值大多大于0.5，地表水资源和总水资源h值均小于0.5，总体呈下降趋势。然而，这种趋势在未来可能会改变。③从相关性分析来看，气候变化对水资源的影响大于土地利用变化对水资源的影响。

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来源期刊

Hydrology Research Environmental Science-Water Science and Technology

CiteScore

5.30

自引率

7.40%

发文量

审稿时长

17 weeks

期刊介绍： Hydrology Research provides international coverage on all aspects of hydrology in its widest sense, and welcomes the submission of papers from across the subject. While emphasis is placed on studies of the hydrological cycle, the Journal also covers the physics and chemistry of water. Hydrology Research is intended to be a link between basic hydrological research and the practical application of scientific results within the broad field of water management.