Spatiotemporal Sensitivity Characteristics of Water Resources in Huai River Ecological–Economic Belt, China

Abstract

To achieve precision control of water resources in the Huai River Basin, the precision of the forecast and control of such resources must be improved. In the present study, a recharge method was applied to the basic data obtained from the quantitative forecast and precision control of water resources in the Huai River. In addition, the water balance method was used to analyze the spatiotemporal characteristics of the water resources in the Huai River ecological-economic belt (hereafter the eco-economic belt). Using data on water resources in the eco-economic belt from 1998 to 2018, we explored the spatiotemporal changes and the characteristics of the water resources in the region. The analysis revealed the following: (1) The eco-economic belt has abundant water resources with regard to total volume, but they are unevenly spatiotemporally distributed. (2) The water resources in the eco-economic belt display a declining trend. Abundant water resources are concentrated in the provinces of Anhui, Henan, and Jiangsu, while they are relatively scarce in Hubei. (3) Examination of the changes in the water resources of the provinces located in the eco-economic belt indicates substantial changes in total water resources and rainfall on an annual basis. Henan and Anhui had the largest and smallest annual changes in total water resources, respectively. The rainfall changes are essentially periodic; that is, they alternate annually between high and low over time. Henan and Hubei had the highest changes in surface water resources and groundwater resources, respectively. (4) Rainfall is the primary source of the water resources in the eco-economic belt. The spatial distributions of surface water and groundwater are consistent. Overall, the present study provides valuable empirical evidence of water resource control in the eco-economic belt.

Integrated Evaluations of Resource and Environment Carrying Capacity of the Huaihe River Ecological and Economic Belt in China

“…Between equally important and slightly more important = (2,3,4) Slightly more important = (3,4,5) Between slightly more important and rather important = (4,5,6) Rather important = (5,6,7) Between rather important and quite important = (6,7,8) Quite important = (7,8,9) Between quite important and extremely important = (8,9,10) Extremely important A pairwise comparison matrix A is obtained by pairwise comparison of any two factors. Accordingly, n(n−1)/2 pairwise comparisons are required for n factors in the index system.…”

“…Since China proposed the planning scheme of the Huaihe River Eco-economic Belt, this region has become an important practice place for territorial space development due to its abundant and concentrated ecological resources and low land-use intensity [5,6]. From the perspective of evaluation object, the studies on resource and environment carrying capacity include not only single classification but also comprehensive investigations [7,8].…”

Evaluation of Water Resources Carrying Capacity Using Principal Component Analysis: An Empirical Study in Huai’an, Jiangsu, China

“…As the core city of the Huaihe River Eco-economic Belt, Huai'an City is located in the north-central part of Jiangsu, in the middle and lower reaches of the Huaihe River Basin, and is known as the Flood Corridor [29][30][31]. For this reason, this study selected Huai'an City for empirical research, and the scope of the study area is shown in Figure 1.…”

Evaluation Method and Application of Ecological Sensitivity of Intercity Railway Network Planning

“…Currently, many studies on ecological sensitivity evaluation have been reported and were mainly focused on the following aspects: (1) ecological sensitivity evaluation of a certain region, such as Jianghan Plain, China [1], Three Gorges Reservoir Area in China [2], Denizli Province, Turkey [3], Pingtan Island (China) and Nile Delta (Egypt) [4], along the Yangtze River in China [5], etc. ; (2) Special research should be conducted on sensitive factors, such as soil erosion [6][7][8], geological disasters [9][10][11][12], cultivated land resources [13][14][15], and water resources [16][17][18]; (3) Spatial planning or spatial pattern optimization based on ecological sensitivity analysis, such as the optimization of spatial patterns of resource-based cities [19], optimization of land use spatial patterns [20], urban development boundary planning [21], landscape spatial planning [22], etc. ; (4) Ecological sensitivity evaluations of specific projects, such as power grid projects [23], airport reclamation projects [24], and hydroelectric power plant projects [25].…”