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Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi’an, 710127, China
With the shortage of water resources becoming a global concern, the water conservation function has become one of the most important service functions and the key factor in the sustainable development of watershed ecosystem. The Danjiang River Basin as an important source of water for the middle route of China's South-to-North Water Diversion Project, its water conservation function has attracted extensive public attention under global climate change. In this study, InVEST water yield model based on Budyko hydrological method was employed to analyze the spatio-temporal dynamics of water conservation, and the response of water conservation to climate, land use and soil changes for the period from 2000 to 2019. The results show that the water conservation of Danjiang River Basin tends to decrease under the comprehensive influence of various factors. The spatial analysis of the importance of water conservation identified Shangnan County, the southern part of Danfeng County and the northern part of Shanyang County as important water conservation areas in the study area, which should be regarded as the key and priority protection areas in the regional water resource and ecological protection. The study provides insights for sustainable water management and ecological protection policies, and the InVEST model with localized parameters can also be applied to other areas lacking climate, hydrological and geological data.
Mingyue Li; Dong Liang; Jun Xia; Jinxi Song; Dandong Cheng; Jintao Wu; Yelin Cao; Haotian Sun; Qi Li. Evaluation of water conservation function of Danjiang River Basin in Qinling Mountains, China based on InVEST model. Journal of Environmental Management 2021, 286, 112212 .
AMA StyleMingyue Li, Dong Liang, Jun Xia, Jinxi Song, Dandong Cheng, Jintao Wu, Yelin Cao, Haotian Sun, Qi Li. Evaluation of water conservation function of Danjiang River Basin in Qinling Mountains, China based on InVEST model. Journal of Environmental Management. 2021; 286 ():112212.
Chicago/Turabian StyleMingyue Li; Dong Liang; Jun Xia; Jinxi Song; Dandong Cheng; Jintao Wu; Yelin Cao; Haotian Sun; Qi Li. 2021. "Evaluation of water conservation function of Danjiang River Basin in Qinling Mountains, China based on InVEST model." Journal of Environmental Management 286, no. : 112212.
The bioturbation activity of macroinvertebrates can affect the level of water exchange across the sediment–water interface. The impact of tubificid worm with different densities on the vertical water exchange at the sediment–water interface was investigated based on laboratory flume experiments. Vertical water fluxes, as well as physiochemical parameters, were measured at seven-day intervals, and the maximum penetration depths were obtained by dye injection before and after the tubificid bioturbation experiment, respectively. The bioturbation effects can be summarized in two aspects: (1) when the density was less than (or equal to) 20 individual/10 cm2, the volume of vertical water exchange positively correlated with the tubificid bioturbation. Once the density exceeded (or equaled) 25 individual/10 cm2, the vertical water flux decreased with increasing tubificid bioturbation. After 14 to 21 days, a negative correlation was identified between the bioturbation and the vertical water flux under all biological densities. (2) The maximum depth that the surface water can penetrate the sediment increased with increasing tubificid density. These results revealed that the vertical water was closely related to the biological density. The study has certain reference significance to understanding the spatiotemporal heterogeneity of hyporheic water exchange on a local scale.
Ruichen Mao; Jintao Wu; Xin Qin; Chi Ma; Jinxi Song; Dandong Cheng; Haotian Sun; Mingyue Li. The Effect of Tubificid Bioturbation on Vertical Water Exchange across the Sediment–Water Interface. Water 2020, 12, 3467 .
AMA StyleRuichen Mao, Jintao Wu, Xin Qin, Chi Ma, Jinxi Song, Dandong Cheng, Haotian Sun, Mingyue Li. The Effect of Tubificid Bioturbation on Vertical Water Exchange across the Sediment–Water Interface. Water. 2020; 12 (12):3467.
Chicago/Turabian StyleRuichen Mao; Jintao Wu; Xin Qin; Chi Ma; Jinxi Song; Dandong Cheng; Haotian Sun; Mingyue Li. 2020. "The Effect of Tubificid Bioturbation on Vertical Water Exchange across the Sediment–Water Interface." Water 12, no. 12: 3467.