Analysis of Water Resources in Horqin Sandy Land Using Multisource Data from 2003 to 2010

Zhao, Zhenzhen; Lin, Aiming; Feng, Jiagui; Yang, Qian; Zou, Ling

doi:10.3390/su8040374

Cited by 8 publications

(5 citation statements)

References 67 publications

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“…GWS depletion rate in the WLRB from these annual well observations is −0. A recent study by Zhao et al [36] only used groundwater level data from the CIGEM to estimate GWS changes in the WLRB plain and found a rate of −2.76 ± 0.15 cm/yr from 2005 to 2009, which significantly overestimated the actual GWS depletion rate when compared to results from our study and the aforementioned previous studies. As shown in Figure S4, the distribution of groundwater wells from the HBIM is relatively uniform; while the monitoring wells from the CIGEM are mainly located in the two cones of groundwater depression centered within the WLRB, explaining the likely overestimation of GWS depletion.…”

Section: Comparison With Other Studiescontrasting

confidence: 86%

“…Thus, it is crucial to evaluate the state of groundwater resources in the WLRB for the development of sustainable agriculture and the preservation of terrestrial ecosystems. Groundwater level declines in the WLRB within the past two decades have been reported by several studies [33][34][35][36], e.g., with a rate of ~−0.18 m/yr from 1999 to 2010 [29]. Average groundwater levels in three main counties of the WLRB in 2006 decreased by 3.8 m, 2.8 m, and 1.9 m, respectively, when The WLRB is located in a semi-arid region, with an area of 136,000 km 2 .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Groundwater Depletion in the West Liaohe River Basin, China and Its Implications Revealed by GRACE and In Situ Measurements

Zhong

Wang

et al. 2018

Remote Sensing

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Abstract:The West Liaohe River Basin (WLRB) is one of the most sensitive areas to climate change in China and an important grain production base in the Inner Mongolia Autonomous Region of China. Groundwater depletion in this region is becoming a critical issue. Here, we used the Gravity Recovery and Climate Experiment (GRACE) satellite data and in situ well observations to estimate groundwater storage (GWS) variations and discussed the driving factors of GWS changes in the WLRB. GRACE detects a GWS decline rate of −0.92 ± 0.49 km 3 /yr in the WLRB during 2005-2011, consistent with the estimate from in situ observations (−0.96 ± 0.19 km 3 /yr). This long-term GWS depletion is attributed to reduced precipitation and extensive groundwater overexploitation in the 2000s. Long-term groundwater level observations and reconstructed total water storage variations since 1980 show favorable agreement with precipitation anomalies at interannual timescales, both of which are significantly influenced by the El Niño-Southern Oscillation (ENSO). Generally, the WLRB receives more/less precipitation during the El Niño/La Niña periods. One of the strongest El Niño events on record in 1997-1998 and a subsequent strong La Niña drastically transform the climate of WLRB into a decade-long drought period, and accelerate the groundwater depletion in the WLRB after 1998. This study demonstrates the significance of integrating satellite observations, ground-based measurements, and climatological data for interpreting regional GWS changes from a long-term perspective.

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Section: Comparison With Other Studiescontrasting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Groundwater Depletion in the West Liaohe River Basin, China and Its Implications Revealed by GRACE and In Situ Measurements

Zhong

Wang

et al. 2018

Remote Sensing

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“…Long-term dry conditions and extensive groundwater mining for agricultural, industrial and domestic consumption result in significant groundwater declines in the LRB in the past two decades [94]. Based on GRACE data, Zhao et al [95] found a GWS decline rate of 13.5 ± 1.9 mm/yr from 2003 to 2010 and the largest GWS depletion rate of 26 mm/yr for 2005-2009 in Horqin Sandy Land, i.e., the upstream of the Liaohe River including Tongliao City, which is consistent with limited six monitoring well observations they collected from the CIGEM. Zhong et al [46] found a GWS decline rate of 6.8 ± 3.6 mm/yr during 2005-2011 in the western LRB using GRACE.…”

Section: Song-liao Basinmentioning

confidence: 99%

Groundwater Storage Changes in China from Satellite Gravity: An Overview

et al. 2018

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Groundwater plays a critical role in the global water cycle and is the drinking source for almost half of the world's population. However, exact quantification of its storage change remains elusive due primarily to limited ground observations in space and time. The Gravity Recovery and Climate Experiment (GRACE) twin-satellite data have provided global observations of water storage variations at monthly sampling for over a decade and a half, and is enable to estimate changes in groundwater storage (GWS) after removing other water storage components using auxiliary datasets and models. In this paper, we present an overview of GWS changes in three main aquifers within China using GRACE data, and conduct a comprehensive accuracy assessment using in situ ground well observations and hydrological models. GRACE detects a significant GWS depletion rate of 7.2 ± 1.1 km 3 /yr in the North China Plain (NCP) during 2002-2014, consistent with ground well observations and model predictions. The Liaohe River Basin (LRB) experienced a pronounced GWS decline during 2005-2009, at a depletion rate of 5.0 ± 1.2 km 3 /yr. Since 2010, GRACE-based GWS reveal a slow recovery in the LRB, with excellent agreement with ground well observations. For the whole study period 2002-2014, no significant long-term GWS depletion is found in the LRB nor in the Tarim Basin. A case study in the Inner Tibetan Plateau highlights there still exist large uncertainties in GRACE-based GWS change estimates.

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“…However, previous findings showed that water addition has an effect on plant functional traits in a typical steppe [10], and plant height was low in dry conditions [41]. It is probably attributed to plants having been acclimated themselves to the local environment in Horqin sandy grassland, further suggesting that water addition is not a proper way to maintain the sustainable development of sandy grassland in Horqin because of the decline of groundwater caused by unreasonable irrigation and climate change in Horqin sandy land [22,42]. Moreover, water addition reduced plant height in fencing and N addition treatments in our study, indicating that water addition interacted with fencing, and N supply is not favor plant growth in the sandy grassland.…”

Section: Discussionmentioning

confidence: 99%

How Plant Functional Traits of Dominant Species Respond to Fencing and Water-Nitrogen Addition in Horqin Grassland, China

Yue¹,

Zuo²,

Zou³

et al. 2020

Pol. J. Environ. Stud.

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Plant functional traits can reflect the response and adaptation of plant species to environmental changes. However, how plant functional traits of dominant species respond to the fencing, water and nitrogen additions in a sandy grassland ecosystem is still unclear. Here, a manipulative field experiment was conducted to investigate the effects of fencing, water and nitrogen addition on the functional traits of four dominant species (Pennisetum centrasiaticum, Cleistogenes squarrosa, Chenopodium acuminatum and Salsola collina) in Horqin sandy grassland. The results showed that nitrogen addition had a significant effect on plant height, specific leaf area (SLA), leaf nitrogen content (LNC), and leaf dry matter content (LDMC). Nitrogen addition increased plant height for C. squarrosa as well as SLA for P. centrasiaticum and S. collina, while reducing plant height for P. centrasiaticum and LDMC for S. collina. Also, nitrogen addition increased LNC for the four dominant species. Water addition reduced LDMC in grazing treatment, as well as plant height in fencing and nitrogen addition treatments. Compared to control treatment, nitrogen addition increased the strength of negative associations of LDMC with plant height and LNC. The results suggest that nitrogen addition plays an important role in determining the growth of the four dominant species, and water addition increases the competition of resource use among species in fencing and nitrogen addition treatments. Plants in sandy grassland can mediate the key functional traits to cope with alterations of water and nitrogen under the future global change scenarios.

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Analysis of Water Resources in Horqin Sandy Land Using Multisource Data from 2003 to 2010

Cited by 8 publications

References 67 publications

Groundwater Depletion in the West Liaohe River Basin, China and Its Implications Revealed by GRACE and In Situ Measurements

Groundwater Depletion in the West Liaohe River Basin, China and Its Implications Revealed by GRACE and In Situ Measurements

Groundwater Storage Changes in China from Satellite Gravity: An Overview

How Plant Functional Traits of Dominant Species Respond to Fencing and Water-Nitrogen Addition in Horqin Grassland, China

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