Author(s): Ying Zhang; Na Meng

Linked Author(s): Ying ZHANG

Keywords: Water conservation; Water Balance Method; Forest ecosystem services; National park management; Policy making

Abstract: Water conservation service has an important impact on human well-being. Water balance method and Difference equation model are used to evaluate the water regulation value of ecosystem in Qinghai Province of Qilian Mountain National Park, China. The results show that: (1)Grassland plays an important role in water conservation in Qilian Mountain National Park, Qinghai Province. The annual physical water conservation amount is about 6.446 billion tons, and the value of water conservation accounts for about 29.58% of the total water conservation value. (2) Although the forest area is small, its ecological security is obvious. In 2020, the water conservation value is 5.111 billion RMB yuan (arbor forest and shrub forest), accounting for 7.62% of the total water conservation value. (3) From 2010 to 2020, the water conservation quantity of different ecosystems in Qilian Mountain National Park, Qinghai Province had little change, but its value decreased, which is mainly caused by the decline of water conservation value per unit ecosystem. (4) In 2030, the physical quantity and value of water conservation increased, with the physical quantity increasing by 4.166 billion tons and the monetary value increasing by 19.12% compared with 2020. The paper also discusses the related problems of water conservation and puts forward some suggestions for the management of Qilian Mountain National Park, Qinghai Province, China.

DOI: https://doi.org/10.3850/IAHR-39WC2521711920221289

Year: 2022