Soil desiccation effects under different vegetation types in the Loess Region of Northern Shaanxi

Qingping, 苟清平 Gou; Qingke, 朱清科 Zhu; Yixuan, 李依璇 Li; Mingshuang, 申明爽 Shen; Yuyan, 刘昱言 Liu; Xuemei, 梅雪梅 Mei; Yu, 王瑜 Wang

doi:10.5846/stxb201808021654

Cited by 4 publications

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“…In this study, it was found that the SMC in R. pseudoacacia L. was lower than that in P. tabulaeformis Carr. under the same stand conditions due to the lower intensity of evapotranspiration and water consumption in P. tabulaeformis Carr., while R. pseudoacacia L. has a well-developed root system, high evapotranspiration, and is under long-term drought stress, which is consistent with previous studies [5,12,37]. In addition, we found that the difference in the SMC between P. alba L. and P. tabulaeformis Carr.…”

Section: Soil Moisture Consumption Characteristics By Vegetation Typesupporting

confidence: 92%

“…Artificial forest species play a crucial role in regulating both the soil moisture content and transport, due to the differences in physiological characteristics such as root distribution, canopy interception, water consumption, and drought tolerance among different types of vegetation, all of which are closely related to soil moisture storage [11]. Soil desiccation is common in plantation forests introduced by large-scale afforestation on the Loess Plateau [12,13], and scholars have carried out a series of studies on the soil moisture dynamic changes and desiccation under different vegetation types. For example, Gou et al [12] found that vegetation is the main influence factor of deep soil moisture, and the soil desiccation intensity under different vegetation types was ranked as P. simonii Carr.…”

Section: Introductionmentioning

confidence: 99%

“…Soil desiccation is common in plantation forests introduced by large-scale afforestation on the Loess Plateau [12,13], and scholars have carried out a series of studies on the soil moisture dynamic changes and desiccation under different vegetation types. For example, Gou et al [12] found that vegetation is the main influence factor of deep soil moisture, and the soil desiccation intensity under different vegetation types was ranked as P. simonii Carr. > R. pseudoacacia L. > H. rhamnoides L. > Armeniaca sibirica > P. tabulaeformis Carr.…”

Section: Introductionmentioning

confidence: 99%

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Different Responses of Soil Moisture to Different Artificial Forest Species on the Loess Plateau

Cao,

Chen,

Jiang

et al. 2023

Sustainability

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The Chinese Loess Plateau has undertaken a large-scale “Grain for Green” project since 1999. Understanding how reforestation affects soil moisture is crucial for ecological construction and the region’s revegetation. In this study, soil sensors were installed to monitor the soil moisture content (SMC) and soil desiccation intensity in a 0–200 cm soil profile online during the growing season, with farmland as a control and Robinia (R.) pseudoacacia L., Pinus (P.) tabulaeformis Carr., Populus (P.) alba L., and Ulmus (U.) pumila L. were selected. The results showed that the SMC increased with soil depth, and the soil moisture storage (SMS) in the 0–200 cm soil profile was ranked as R. pseudoacacia L. (424.3 mm) < farmland (479.8 mm) < U. pumila L. (569.8 mm) < P. alba L. (583.9 mm) < P. tabulaeformis Carr. (589.8 mm). Secondly, the percentages of inefficient water and gravimetric water in soil moisture were ranked as R. pseudoacacia L. (63%) > farmland (49%) > U. pumila L. (43%) > P. alba L. (17%) > P. tabulaeformis Carr. (11%). The soil desiccation intensity of artificial forests was heavy in June, light in April and July, and no desiccation in the other months. Moderate desiccation was discovered in the 0–40 cm soil layer and mild desiccation occurred in the 40–60 cm soil layer. Additionally, the representative soil layer for SMS in farmland for P. tabulaeformis Carr., U. pumila L., and R. pseudoacacia L. was the 90 cm soil layer, and the SMS representative soil layer for P. alba L. was the 70 cm soil layer. In brief, an SMS deficit occurred after the conversion of the farmland to R. pseudoacacia L., but there was an SMS surplus after the conversion of the farmland to P. alba L., U. pumila L., and P. tabulaeformis Carr. This suggests that the artificial forest species could be optimized by introducing P. tabulaeformis Carr. instead of R. pseudoacacia L., and the degradation of R. pseudoacacia L. could be suppressed by the application of a nitrogen fertilizer. Our research demonstrated that soil moisture depletion patterns were closely related to artificial forest species, and attention should be paid to the vegetation restoration and maintenance of afforestation achievements in water-constrained arid regions in the future.

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Section: Soil Moisture Consumption Characteristics By Vegetation Typesupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Different Responses of Soil Moisture to Different Artificial Forest Species on the Loess Plateau

Cao,

Chen,

Jiang

et al. 2023

Sustainability

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“…SDI is a quantitative indicator of soil desiccation. According to relevant evaluation thresholds ( Yang, Zhang & Chen, 2018 ; Gou et al, 2019 ), we analyzed spatiotemporal changes in soil desiccation in apple orchards of different ages based on depth and time (month). Dry soil layers were present mainly at shallow depths in the young orchards, most likely a result of persistent soil drought and water depletion by apple trees.…”

Section: Discussionmentioning

confidence: 99%

Soil water depletion patterns in rainfed apple orchards and wheat fields

Zhang

Wang

Sun

2023

PeerJ

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Agricultural production in the Weibei rainfed highland, Northwest China, is challenged by severe drought and water shortages. While the land use pattern has shifted gradually from crop production to orchard farming in Weibei, little is known about the influence of fruit industry development on regional water resources and the rationality of planting orchards. Here, we characterized soil water depletion patterns in rainfed orchards and farmlands to evaluate the occurrence of soil desiccation under land use conversion from farmlands to orchards in Weibei. Soil moisture dynamics were monitored in the 0–150 cm soil profiles of different aged Red Fuji apple orchards (young: 7 years, mature: 13 years, old: 22 years) and long-term cultivated winter wheat fields. We measured soil moisture content by oven-drying method in the middle of each month during the growing season of apple trees (March–September 2019). The over-depletion and depletion of soil water were analyzed to evaluate water stress and differential water depletion by distinct vegetation, respectively. The soil desiccation index was used to determine the occurrence of dry soil layers. Water stress was only observed at the 0–70-cm soil depths in the old orchards (mid-June) and farmlands (mid-May–mid-July). Water depletion took place at deeper depths for longer periods in the older orchards than in the younger orchards. Soil desiccation was absent in the young orchards, with mild desiccation at the 0–80-cm soil depths in the mature and old orchards in mid-June. The desiccation intensity was mild at the 0–60-cm soil depths in mid-April–mid-May, intense at the 0–150-cm soil depths in mid-June, and moderate at the 20–150-cm soil depths in mid-July. Results of this study demonstrate the mitigation of water stress and soil desiccation following conversion from wheat fields to apple orchards, which verifies the rationality of planting orchards in the rainfed highland area. Our findings provide strong support for developing a novel model of agro-industrial development, ecological construction, and sustainable economy in the vast arid and semi-arid areas of Northwest China.

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Factors limiting the recruitment of artificial black locust forests in extremely arid environment

Kang

Zou

2020

Ecological Engineering

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Soil desiccation effects under different vegetation types in the Loess Region of Northern Shaanxi

Cited by 4 publications

References 0 publications

Different Responses of Soil Moisture to Different Artificial Forest Species on the Loess Plateau

Different Responses of Soil Moisture to Different Artificial Forest Species on the Loess Plateau

Soil water depletion patterns in rainfed apple orchards and wheat fields

Factors limiting the recruitment of artificial black locust forests in extremely arid environment

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