Long-term water balance variation after revegetation on the southeastern edge of the Tengger Desert

Maintaining the water balance of soil-vegetation systems is necessary for the ecological restoration of desertified regions. However, the major processes controlling water balance after revegetation remains unclear. To quantify the water balance after revegetation of moving sand dunes, we performed...

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Autores principales:	Zhi-Shan Zhang, Bing-Xin Xu, Yang Zhao, Ya-Fei Shi, Jian-Qiang Huo, Nan Wang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Lysimeter Rain-fed Sand-binding shrubs Scaling effects Soil water availability Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/c2c331621dc5419c95e1d7c19492e595
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spelling	oai:doaj.org-article:c2c331621dc5419c95e1d7c19492e5952021-12-01T05:00:48ZLong-term water balance variation after revegetation on the southeastern edge of the Tengger Desert1470-160X10.1016/j.ecolind.2021.108216https://doaj.org/article/c2c331621dc5419c95e1d7c19492e5952021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21008815https://doaj.org/toc/1470-160XMaintaining the water balance of soil-vegetation systems is necessary for the ecological restoration of desertified regions. However, the major processes controlling water balance after revegetation remains unclear. To quantify the water balance after revegetation of moving sand dunes, we performed an 18-year-long large-weighting lysimeter monitoring study in the Tengger Desert, northern China. We measured daily precipitation, evapotranspiration (ET), and drainage loss (DL) on an area revegetated with either Artemisia ordosica or Caragana korshinskii, two shrubs with different crown size and rooting depth, and with bare soil. Our results showed that the annual precipitation of 186 mm was partitioned to 64% evaporation and 23% DL on the bare soil control. However, the water balance changed after revegetation, with the vast majority of precipitation ending up as ET (93% in A. ordosica and 98% in C. korshinskii). The relationships of ET and DL with precipitation showed a quasi-steady state at annual scales, a varying state at seasonal scales, and a pulsed state at daily scales. We also observed spatiotemporal niche partitioning between the two shrubs, where differences in water use promoted their coexistence in the revegetated desert areas. Our study suggests that the density and area of revegetation should be controlled within a certain range in accordance with the underlying soil-vegetation water balance in desert regions. Otherwise, sand-binding revegetation would be degraded and the ecological benefits of dune fixation would be lost.Zhi-Shan ZhangBing-Xin XuYang ZhaoYa-Fei ShiJian-Qiang HuoNan WangElsevierarticleLysimeterRain-fedSand-binding shrubsScaling effectsSoil water availabilityEcologyQH540-549.5ENEcological Indicators, Vol 131, Iss , Pp 108216- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Lysimeter Rain-fed Sand-binding shrubs Scaling effects Soil water availability Ecology QH540-549.5
spellingShingle	Lysimeter Rain-fed Sand-binding shrubs Scaling effects Soil water availability Ecology QH540-549.5 Zhi-Shan Zhang Bing-Xin Xu Yang Zhao Ya-Fei Shi Jian-Qiang Huo Nan Wang Long-term water balance variation after revegetation on the southeastern edge of the Tengger Desert
description	Maintaining the water balance of soil-vegetation systems is necessary for the ecological restoration of desertified regions. However, the major processes controlling water balance after revegetation remains unclear. To quantify the water balance after revegetation of moving sand dunes, we performed an 18-year-long large-weighting lysimeter monitoring study in the Tengger Desert, northern China. We measured daily precipitation, evapotranspiration (ET), and drainage loss (DL) on an area revegetated with either Artemisia ordosica or Caragana korshinskii, two shrubs with different crown size and rooting depth, and with bare soil. Our results showed that the annual precipitation of 186 mm was partitioned to 64% evaporation and 23% DL on the bare soil control. However, the water balance changed after revegetation, with the vast majority of precipitation ending up as ET (93% in A. ordosica and 98% in C. korshinskii). The relationships of ET and DL with precipitation showed a quasi-steady state at annual scales, a varying state at seasonal scales, and a pulsed state at daily scales. We also observed spatiotemporal niche partitioning between the two shrubs, where differences in water use promoted their coexistence in the revegetated desert areas. Our study suggests that the density and area of revegetation should be controlled within a certain range in accordance with the underlying soil-vegetation water balance in desert regions. Otherwise, sand-binding revegetation would be degraded and the ecological benefits of dune fixation would be lost.
format	article
author	Zhi-Shan Zhang Bing-Xin Xu Yang Zhao Ya-Fei Shi Jian-Qiang Huo Nan Wang
author_facet	Zhi-Shan Zhang Bing-Xin Xu Yang Zhao Ya-Fei Shi Jian-Qiang Huo Nan Wang
author_sort	Zhi-Shan Zhang
title	Long-term water balance variation after revegetation on the southeastern edge of the Tengger Desert
title_short	Long-term water balance variation after revegetation on the southeastern edge of the Tengger Desert
title_full	Long-term water balance variation after revegetation on the southeastern edge of the Tengger Desert
title_fullStr	Long-term water balance variation after revegetation on the southeastern edge of the Tengger Desert
title_full_unstemmed	Long-term water balance variation after revegetation on the southeastern edge of the Tengger Desert
title_sort	long-term water balance variation after revegetation on the southeastern edge of the tengger desert
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/c2c331621dc5419c95e1d7c19492e595
work_keys_str_mv	AT zhishanzhang longtermwaterbalancevariationafterrevegetationonthesoutheasternedgeofthetenggerdesert AT bingxinxu longtermwaterbalancevariationafterrevegetationonthesoutheasternedgeofthetenggerdesert AT yangzhao longtermwaterbalancevariationafterrevegetationonthesoutheasternedgeofthetenggerdesert AT yafeishi longtermwaterbalancevariationafterrevegetationonthesoutheasternedgeofthetenggerdesert AT jianqianghuo longtermwaterbalancevariationafterrevegetationonthesoutheasternedgeofthetenggerdesert AT nanwang longtermwaterbalancevariationafterrevegetationonthesoutheasternedgeofthetenggerdesert
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Long-term water balance variation after revegetation on the southeastern edge of the Tengger Desert

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