Function zoning based on spatial and temporal changes in quantity and quality of ecosystem services under enhanced management of water resources in arid basins

• DOI: 10.1016/j.ecolind.2022.108725
• Publication Date: 2022-03-01T10:11:13Z
• Authors: Zikang Wang; Jing Guo; Hongbo Ling; Feifei Han; Zijie Kong; Wenqi Wang
• Keywords: Ecosystem Management

With global warming, the contradiction between supply and demand of water resources is increasingly prominent in arid areas. Enhancing resource management an important way to alleviate shortage ecological improve ecosystem services river basins. However, previous studies have rarely conducted comprehensive function zoning using two aspects: category (quantity) strength change (quality), based on changes services. In this regard, scientific problems need be solved:(1) quantifying temporal spatial (2) conducting terms quantity quality. To answer these questions, we took upper middle reaches Tarim River Basin China as study area. According eco-environmental characteristics basins, measured four key indices: carbon storage (CAS), evapotranspiration (ET), temperature vegetation dryness index (TVDI) groundwater depth (GWD). We used related model quantitatively analyze distribution indicators aggregation increases decreases. Reclassify tool ArcGIS 10.5 classify areas with more than zones high-quantity zones. factor analysis, combined Quantile, divide service quality into high-quality low-quality Considering services, divided important, general, sensitive fragile Based results during 2000–2018, restoration was determined. correlation analysis basic drivers indicators. The showed that CAS ET increased by 0.2% 15.3%, respectively, TVDI decreased 22.5% GWD rose 1.7%. 2018, hot spots CAS, ET, accounted for a small proportion whole area, accounting 3.8%, 5.9%, 9.0% 1.4%, respectively. Compared 2000, zone 10.7% 2.0% 2018. This clearly diversion riverway loss were main driving maintaining increasing coverage, specific counter measures suggestions number (“increment”) improving (“quality improvement”) proposed. can provide reference achieving optimal systems similar basins regions.