Next Article in Journal
A Comparative Investigation of Various Pedotransfer Functions and Their Impact on Hydrological Simulations
Previous Article in Journal
Blue Economy and Blue Activities: Opportunities, Challenges, and Recommendations for The Bahamas
 
 
Article

Effects of Intermittent Water Allocation on Vegetation Dynamics in Lake Baiyangdian, North China

by 1,2,*, 2 and 3,4,*
1
School of Life Science, Shanxi University, Taiyuan 030006, China
2
School of Physical Education, Shanxi University, Taiyuan 030006, China
3
Shanxi Provincial Security Center of Ecological Environmental Monitoring and Emergency, Taiyuan 030027, China
4
Shanxi Provincial Academy of Ecological Environmental Science, Taiyuan 030027, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Didier Orange
Water 2021, 13(10), 1400; https://doi.org/10.3390/w13101400
Received: 14 April 2021 / Revised: 11 May 2021 / Accepted: 13 May 2021 / Published: 17 May 2021
(This article belongs to the Section Biodiversity and Functionality of Aquatic Ecosystems)
The ecological effects of intermittent water supplement in Lake Baiyangdian were analyzed with an NDVI time series based on the data from 1 April 1998 to 31 July 2008. Four NDVI categories were extracted, and twelve stages were grouped based on the specific replenishment time of water allocation. STR (a seasonal-trend decomposition procedure based on regression) and its corresponding linear regression and abrupt change detection were used to highlight the temporal variations in vegetation under the effects of water allocation. ANOVA was used to identify the response quality of the vegetation in each stage. The results showed that the significant increasing trend of each NDVI category was detected by linear regression (p < 0.001). The 95% abrupt change intervals showed uncertainty and complexity in the immediate vegetation response to water division times. The most abrupt changes were detected in the growing seasons. The extremely significant differences in NDVI variation before and after water allocations were detected by ANOVA (p < 0.001, t-test). The longer the duration of water allocation was maintained, the higher the detection of vegetation coverage was relatively. The increased vegetation coverage benefited from the constant water supply. Our results provide evidence of vegetation responses to intermittent water divisions. The positive effects of water allocation on regional ecological restoration were confirmed. This study strengthened the water division effects of regional vegetation restoration and provided a practical strategy for an effective implementation of water allocation. View Full-Text
Keywords: ecological effect; water allocation; NDVI; vegetation response; water scarcity area; Baiyangdian watershed ecological effect; water allocation; NDVI; vegetation response; water scarcity area; Baiyangdian watershed
Show Figures

Figure 1

MDPI and ACS Style

Wang, F.; Wang, X.; Zhao, Y. Effects of Intermittent Water Allocation on Vegetation Dynamics in Lake Baiyangdian, North China. Water 2021, 13, 1400. https://doi.org/10.3390/w13101400

AMA Style

Wang F, Wang X, Zhao Y. Effects of Intermittent Water Allocation on Vegetation Dynamics in Lake Baiyangdian, North China. Water. 2021; 13(10):1400. https://doi.org/10.3390/w13101400

Chicago/Turabian Style

Wang, Fei, Xueke Wang, and Ying Zhao. 2021. "Effects of Intermittent Water Allocation on Vegetation Dynamics in Lake Baiyangdian, North China" Water 13, no. 10: 1400. https://doi.org/10.3390/w13101400

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop