scholarly journals Erratum: Yu, W.; Jiao, J. Sustainability of Abandoned Slopes in the Hill and Gully Loess Plateau Region Considering Deep Soil Water. Sustainability 2018, 10, 2287

2019 ◽  
Vol 11 (8) ◽  
pp. 2345
Author(s):  
Weijie Yu ◽  
Juying Jiao

The authors did not notice during the proofreading phase that there were errors in the affiliations, funding, and acknowledgments [...]

2018 ◽  
Vol 10 (7) ◽  
pp. 2287 ◽  
Author(s):  
Weijie Yu ◽  
Juying Jiao

Soil desiccation of the deep soil layer is considered one of the main limiting factors to achieving sustainable development of ecosystems in the hill and gully Loess Plateau region. In this study, slope croplands were selected as the control, and deep soil water was studied on abandoned slopes, including natural abandoned slopes, Robinia pseudoacacia plantations, and Caragana korshinskii plantations. Then, we explored deep soil water characteristics of different vegetation types and slope aspects and the variation tendencies of deep soil water at different recovery stages. The results showed that there were no significant differences in deep soil water content between sunny and shady slopes, and thus, slope aspect was not the key impact factor affecting deep soil water. Deep soil water content on R. pseudoacacia plantations and C. korshinskii plantations was lower than that on natural abandoned slopes; there were no significant differences in soil water content between the natural abandoned slopes and slope croplands. Soil desiccation did not exist on natural abandoned slopes; thus, natural vegetation restoration is an appropriate way to achieve a sustainable ecosystem with respect to deep soil water. In contrast, soil desiccation intensified until it was difficult for vegetation to obtain available water in the deep soil layer on the plantations; soil desiccation began to appear at the 11–20-year stage, and it became increasingly severe until the deep soil water was close to the wilting coefficient at the ≥30-year stage on R. pseudoacacia plantations. Deep soil water was rapidly consumed, and soil desiccation began to appear at the 1–10-year stage and then was close to the wilting coefficient in the later stages on C. korshinskii plantations. According to the results, the plantations needed to be managed in a timely manner to prevent or reduce soil desiccation.


2021 ◽  
Vol 491 ◽  
pp. 119156
Author(s):  
Binbin Li ◽  
Wantao Zhang ◽  
Shujie Li ◽  
Ju Wang ◽  
Guobin Liu ◽  
...  

2016 ◽  
Vol 94 ◽  
pp. 427-436 ◽  
Author(s):  
Wei-Jie Yu ◽  
Ju-Ying Jiao ◽  
Dong-Li Wang ◽  
Ning Wang ◽  
Zhi-Jie Wang ◽  
...  

Water ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 2183 ◽  
Author(s):  
Zhiqiang Zhang ◽  
Bingcheng Si ◽  
Huijie Li ◽  
Min Li

Piston and preferential water flow are viewed as the two dominant water transport mechanisms regulating terrestrial water and solute cycles. However, it is difficult to accurately separate the two water flow patterns because preferential flow is not easy to capture directly in field environments. In this study, we take advantage of the afforestation induced desiccated deep soil, and directly quantify piston and preferential water flow using chloride ions (Cl−) and soil water profiles, in four deforested apple orchards on the Loess Plateau. The deforestation time ranged from 3 to 15 years. In each of the four selected orchards, there was a standing orchard that was planted at the same time as the deforested one, and therefore the standing orchard was used to benchmark the initial Cl− and soil water profiles of the deforested orchard. In the deforested orchards, piston flow was detected using the migration of the Cl− front, and preferential flow was measured via soil water increase below the Cl− front. Results showed that in the desiccated zone, Cl− migrated to deeper soil after deforestation, indicating that the desiccated soil layer formed by the water absorption of deep-rooted apple trees did not completely inhibit the movement of water. Moreover, there was an evident increase in soil water below the downward Cl− front, directly demonstrating the existence of preferential flow in deep soil under field conditions. Although pore water velocity was small in the deep loess, preferential water flow still accounted for 34–65% of total infiltrated water. This study presented the mechanisms that regulate movement of soil water following deforestation through field observations and advanced our understanding of the soil hydrologic process in deep soil.


2019 ◽  
Vol 223 ◽  
pp. 105655 ◽  
Author(s):  
Yuanhong Zhang ◽  
Rui Wang ◽  
Shulan Wang ◽  
Fang Ning ◽  
Hao Wang ◽  
...  

2012 ◽  
Vol 9 (10) ◽  
pp. 12029-12060 ◽  
Author(s):  
Y. Q. Wang ◽  
M. A. Shao ◽  
Z. P. Liu ◽  
C. C. Zhang

Abstract. Negative water balance in soil can lead to soil desiccation and subsequent the formation of a dried soil layer (DSL). Essential progress on DSL temporal change has been hampered by difficulty in collecting deep soil water samples (i.e. > 1000 cm), which are necessary to quantify the real extent of DSL. We collected soil samples up to a depth of 1800 cm and investigated the evolution of soil water content (SWC) and DSL under three vegetation types (C. korshinskii, R. pseudoacacia, apple) in three zones (Ansai, Luochuan, and Changwu) of the Chinese Loess Plateau. As plant growth age increased, SWC, available soil water (ASW), SWC within DSL (DSL-SWC), and quantity of water deficit for DSL (DSL-QWD) showed similar change trends of decreasing at first and then increasing, whereas DSL thickness (DSLT) showed an increasing trend over time. A turning point in soil water change was found for the three vegetation types. In Changwu zone, the turning point, both in and out of DSL, was corresponded to the 17-year-old apple orchard. The period from 9 to 17 yr was vital to maintain the buffering function of deep soil water pool and to avoid the deterioration of soil desiccation because the highest mean decline velocity of ASW and the maximum mean forming velocity of DSLT were 165 mm yr−1 and 168 cm yr−1, respectively. Significant correlations were found between DSLT and growth age and root depth, and between DSL-QWD and root depth, whereas mean DSL-SWC had no significant correlation with either growth year or root depth. Soil water condition was highly dependent on the growth year of the plants. This information provides pertinent reference for water resource management in the Chinese Loess Plateau and possibly in other water-limited regions in the world.


2021 ◽  
Vol 260 ◽  
pp. 107990
Author(s):  
Gulnazar Ali ◽  
Zikui Wang ◽  
Xinrong Li ◽  
Naixuan Jin ◽  
Huiying Chu ◽  
...  

2021 ◽  
Vol 784 ◽  
pp. 147153
Author(s):  
Wei Xiang ◽  
Bingcheng Si ◽  
Min Li ◽  
Han Li ◽  
Yanwei Lu ◽  
...  

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Ruixue Cao ◽  
Xiaoxu Jia ◽  
Laiming Huang ◽  
Yuanjun Zhu ◽  
Lianhai Wu ◽  
...  

Author(s):  
Mingshuang Shen ◽  
Yang Yu ◽  
Shouhong Zhang ◽  
Ruoxiu Sun ◽  
Zhengle Shi ◽  
...  

Characterizing soil water content (SWC) dynamics is a prerequisite for conducting sustainable vegetation restoration on the Chinese Loess Plateau. However, quantifying the variations of the SWC in the deep soil layers remains a challenge because of the different driving factors and the complexity of surface processes. In this study, SWC in 0–10 m of artificial forestlands (AF), apple orchard (AO), native forestland (NF), farmland (maize; FL), and native grassland (NG) were monitored during 2019–2020. The deficit size (DS) and recovery index (RI) were used to explore the effects of vegetation types on SWC. The results showed that the SWCs of forestlands were significantly lower than the SWC of native grassland (12.32%) and tree species significantly affected the SWC. The monthly DS values in forestlands were negative, while those of FL were positive. The DS value in 0-10 m and predictive values below 10 m were negative of forestlands. Thus, tree planting may have consumed soil water at a depth of > 10 m. During the investigation period, soil water was restored in 0–1 m with the positive RI values. In addition, artificial forestlands showed good performance in deep soil water recovery. Canopy density was the controlling factor for soil water restoration. Our results demonstrated that the current afforestation mode used more soil water but was conducive to deep soil water conservation. Therefore, reasonable adjustments should be made according to the local soil and water resources for future vegetation selection and management.


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