Response of soil nitrogen components and its vertical distribution to rainfall redistribution during Robinia pseudoacacia forest restoration on the Loess Plateau
The effects of vegetation restoration on soil moisture dynamics and nutrient content have been widely studied; however, the knowledge on variation in rainfall redistribution and soil nitrogen component characteristics remain limited, particularly with respect to their relationship in restored ecosys...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Ecological Indicators |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X23011780 |
| _version_ | 1827788682787028992 |
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| author | Ling Cao Miaoping Xu Yushu Liu Zhouchang Yu Lin Sun Xingfang Tian Ying Zhang Jiayi Shi Xinhui Han Peizhi Yang Wei Zhang |
| author_facet | Ling Cao Miaoping Xu Yushu Liu Zhouchang Yu Lin Sun Xingfang Tian Ying Zhang Jiayi Shi Xinhui Han Peizhi Yang Wei Zhang |
| author_sort | Ling Cao |
| collection | DOAJ |
| description | The effects of vegetation restoration on soil moisture dynamics and nutrient content have been widely studied; however, the knowledge on variation in rainfall redistribution and soil nitrogen component characteristics remain limited, particularly with respect to their relationship in restored ecosystems. Therefore, the characteristics of plant community structure, rainfall redistribution, and soil nitrogen components from farmland and Robinia pseudoacacia (RP) plantations of four restoration ages (12, 20, 30, and 45 a) were investigated and measured in the Wuliwan watershed in the Loess Plateau, China. The results showed that changes in plant community structure affected the rainfall redistribution processes. The throughfall and moisture entering the soil (MES) had the largest proportions (79.50 % and 60.25 %) in the initial and second distributions of atmospheric rainfall, respectively. With the increase in restoration age, the content of soil total nitrogen (STN), soil nitrate nitrogen (SNN), soil soluble total nitrogen (SSTN), soil soluble organic nitrogen (SSON), and soil soluble inorganic nitrogen (SSIN) all increased with restoration age in the upper soil (0–40 cm), fluctuated in the middle soil (40–100 cm), and increased and then decreased in the deeper soil (100–200 cm). In addition, the vegetation restoration process can indirectly affect soil nitrogen content and distribution patterns by affecting the rainfall redistribution process. In the upper soil, litter interception (LI) had a significant effect on STN by affecting SSIN and SSON. In the middle soil, both LI and MES had significant effects on STN through SSIN and SSON, respectively. In the deeper soil, LI had no significant effect on any nitrogen component, whereas MES had a significant effect on STN by affecting SSIN. Overall, this study indicates that RP plantation restoration has the potential to transform rainfall redistribution and soil nitrogen distribution, providing an important reference for the reciprocal feedback relationship between water and nitrogen. |
| first_indexed | 2024-03-11T17:08:59Z |
| format | Article |
| id | doaj.art-09ef7df185f8489483ba5579c1e54366 |
| institution | Directory Open Access Journal |
| issn | 1470-160X |
| language | English |
| last_indexed | 2024-03-11T17:08:59Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecological Indicators |
| spelling | doaj.art-09ef7df185f8489483ba5579c1e543662023-10-20T06:38:50ZengElsevierEcological Indicators1470-160X2023-11-01155111036Response of soil nitrogen components and its vertical distribution to rainfall redistribution during Robinia pseudoacacia forest restoration on the Loess PlateauLing Cao0Miaoping Xu1Yushu Liu2Zhouchang Yu3Lin Sun4Xingfang Tian5Ying Zhang6Jiayi Shi7Xinhui Han8Peizhi Yang9Wei Zhang10College of Grassland Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, ChinaState Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Yangling 712100, ChinaCollege of Grassland Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, ChinaCollege of Grassland Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, ChinaCollege of Grassland Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, ChinaCollege of Grassland Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, ChinaCollege of Grassland Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, ChinaCollege of Grassland Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, ChinaCollege of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China; The Research Center of Recycle Agricultural Engineering and Technology of Shaanxi Province, Yangling, 712100 Shaanxi, ChinaCollege of Grassland Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, ChinaCollege of Grassland Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, China; Corresponding author.The effects of vegetation restoration on soil moisture dynamics and nutrient content have been widely studied; however, the knowledge on variation in rainfall redistribution and soil nitrogen component characteristics remain limited, particularly with respect to their relationship in restored ecosystems. Therefore, the characteristics of plant community structure, rainfall redistribution, and soil nitrogen components from farmland and Robinia pseudoacacia (RP) plantations of four restoration ages (12, 20, 30, and 45 a) were investigated and measured in the Wuliwan watershed in the Loess Plateau, China. The results showed that changes in plant community structure affected the rainfall redistribution processes. The throughfall and moisture entering the soil (MES) had the largest proportions (79.50 % and 60.25 %) in the initial and second distributions of atmospheric rainfall, respectively. With the increase in restoration age, the content of soil total nitrogen (STN), soil nitrate nitrogen (SNN), soil soluble total nitrogen (SSTN), soil soluble organic nitrogen (SSON), and soil soluble inorganic nitrogen (SSIN) all increased with restoration age in the upper soil (0–40 cm), fluctuated in the middle soil (40–100 cm), and increased and then decreased in the deeper soil (100–200 cm). In addition, the vegetation restoration process can indirectly affect soil nitrogen content and distribution patterns by affecting the rainfall redistribution process. In the upper soil, litter interception (LI) had a significant effect on STN by affecting SSIN and SSON. In the middle soil, both LI and MES had significant effects on STN through SSIN and SSON, respectively. In the deeper soil, LI had no significant effect on any nitrogen component, whereas MES had a significant effect on STN by affecting SSIN. Overall, this study indicates that RP plantation restoration has the potential to transform rainfall redistribution and soil nitrogen distribution, providing an important reference for the reciprocal feedback relationship between water and nitrogen.http://www.sciencedirect.com/science/article/pii/S1470160X23011780Loess PlateauNitrogen transferRainfall redistributionRobinia pseudoacacia afforestationSoil nitrogenVegetation restoration |
| spellingShingle | Ling Cao Miaoping Xu Yushu Liu Zhouchang Yu Lin Sun Xingfang Tian Ying Zhang Jiayi Shi Xinhui Han Peizhi Yang Wei Zhang Response of soil nitrogen components and its vertical distribution to rainfall redistribution during Robinia pseudoacacia forest restoration on the Loess Plateau Ecological Indicators Loess Plateau Nitrogen transfer Rainfall redistribution Robinia pseudoacacia afforestation Soil nitrogen Vegetation restoration |
| title | Response of soil nitrogen components and its vertical distribution to rainfall redistribution during Robinia pseudoacacia forest restoration on the Loess Plateau |
| title_full | Response of soil nitrogen components and its vertical distribution to rainfall redistribution during Robinia pseudoacacia forest restoration on the Loess Plateau |
| title_fullStr | Response of soil nitrogen components and its vertical distribution to rainfall redistribution during Robinia pseudoacacia forest restoration on the Loess Plateau |
| title_full_unstemmed | Response of soil nitrogen components and its vertical distribution to rainfall redistribution during Robinia pseudoacacia forest restoration on the Loess Plateau |
| title_short | Response of soil nitrogen components and its vertical distribution to rainfall redistribution during Robinia pseudoacacia forest restoration on the Loess Plateau |
| title_sort | response of soil nitrogen components and its vertical distribution to rainfall redistribution during robinia pseudoacacia forest restoration on the loess plateau |
| topic | Loess Plateau Nitrogen transfer Rainfall redistribution Robinia pseudoacacia afforestation Soil nitrogen Vegetation restoration |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X23011780 |
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