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Element Cycle and Pollution Control in Fragile Watershed

A special issue of International Journal of Environmental Research and Public Health (ISSN 1660-4601). This special issue belongs to the section "Environmental Science and Engineering".

Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 2493

Special Issue Editors


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Guest Editor
Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
Interests: water pollution; hydrochemistry; chemical weathering; heavy metal; Isotope geochemistry
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Guest Editor
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
Interests: nitrogen; phosphorus; organic matter; sediment; lake; reservoir
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Guest Editor
Department of Hydrology and Water Resources, Xi’an University of Technology, Xi’an 710048, China
Interests: soil erosion; non-point pollution; sediment; soil and water conservation
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Guest Editor
College of Tropical Crops, Hainan University, Haikou 570228, China
Interests: environmental remediation; heavy metal; phytoremediation; bioavailability; microbe
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Special Issue Information

Dear Colleagues,

Watershed environment pollution and its ecological and health risks is an important challenge facing the world. Watershed management needs to solve a series of problems such as pollution causes, ecological response and control approach. This needs to consider the environmental systemic and integrity, material circulation of ecological and health effect, integrated technology system construction, environmental protection and coordination of economic development mode.

Based on the principle of material circulation in an ecological system, this Special Issue seeks research papers on various aspects of the material circulation process, pollution tracing, numerical simulation, technologies in pollution control and ecological restoration in watersheds. We encourage the submission of manuscripts that focus on issues related to fragile ecosystems, such as the Loess Plateau, Karst areas, the Tibetan Plateau, and arid/semi-arid areas.

Prof. Dr. Jun Xiao
Dr. Jingfu Wang
Dr. Peng Shi
Dr. Zhiqiang Zhu
Guest Editors

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Keywords

  • element cycling
  • nutrients
  • eutrophication
  • hydrochemistry
  • water and soil pollution
  • water and sediment transport
  • soil erosion
  • pollution control
  • vegetation and ecological restoration
  • isotope tracing

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Published Papers (1 paper)

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Research

12 pages, 1719 KiB  
Article
Sloping Farmlands Conversion to Mixed Forest Improves Soil Carbon Pool on the Loess Plateau
by Binbin Li, Xuejian Shen, Yongjun Zhao, Peijuan Cong, Haiyan Wang, Aijuan Wang and Shengwei Chang
Int. J. Environ. Res. Public Health 2022, 19(9), 5157; https://doi.org/10.3390/ijerph19095157 - 24 Apr 2022
Cited by 5 | Viewed by 1815
Abstract
Vegetation restoration is considered a potentially useful strategy for controlling soil erosion and improving soil organic carbon (SOC) in arid and semiarid ecosystems. However, there is still debate regarding which vegetation restoration type is the best choice. In this study, four vegetation restoration [...] Read more.
Vegetation restoration is considered a potentially useful strategy for controlling soil erosion and improving soil organic carbon (SOC) in arid and semiarid ecosystems. However, there is still debate regarding which vegetation restoration type is the best choice. In this study, four vegetation restoration types (i.e., grasslands, shrubs, forests and mixed forests) converted from sloping farmlands were selected to explore the SOC variation among the four types and to investigate which soil factors had the greatest effect on SOC. The results showed while the magnitude of effect differed between vegetation restoration type, all studied systems significantly increased SOC and labile organic carbon contents (p < 0.01), soil nutrients such as total nitrogen (TN) (p < 0.01), available nitrogen (AN) (p < 0.01), total phosphorus (TP) (p < 0.05) and available phosphorus (AP) (p < 0.05), soil enzyme activities such as phosphatase (p < 0.01), soil microbial biomass carbon (MBC) (p < 0.05), and basal respiration (BR) (p < 0.05), but had significant negative correlationswith polyphenol oxidase (p < 0.05). However, the effects of vegetation restoration of farmland converted to natural grasslands, shrubs, forests and mixed forests varied. Among the types studied, the mixed forests had the largest overall positive effects on SOC overall, followed by the natural grasslands. Soil nutrients such as N and P and soil microbial activities were the main factors that affected SOC after vegetation restoration. Mixed forests such as Robinia pseudoacacia and Caragana korshinskii are the best choice for farmland conversion on the central of the Loess Plateau. Full article
(This article belongs to the Special Issue Element Cycle and Pollution Control in Fragile Watershed)
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