The Relationship between Forest Vegetation and Water and Its Regulation in Changing Environments

A special issue of Forests (ISSN 1999-4907). This special issue belongs to the section "Forest Hydrology".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 891

Special Issue Editors


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Guest Editor
Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, China
Interests: forest hydrology; forest–water management; forest–water relationship
Special Issues, Collections and Topics in MDPI journals
Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, China
Interests: forest evapotranspiration; transpiration; forest–water relationship

Special Issue Information

Dear Colleagues,

Extensive afforestation has contributed to the mitigation of some environmental problems (e.g., soil erosion and desertification), but has also led to severe soil water deficit and water yield reduction. In water-limited regions especially, forest growth is gradually limited by the coupled effects of excessive tree density and water shortages; such water use conflicts are likely to be further exacerbated by climate change, particularly global warming. Therefore, complete understanding of the forest–water relationship and its coordinated management are required to achieve the high-quality and sustainable development of forestry, especially in dry and water-limited regions.

The forest–water relationship is complex and varies with spatiotemporal scales. For example, influenced by climate, terrain, soil, and vegetation structure, the hydrological impacts of forests are highly variable, and it is still unclear how the related factors affect the forest–water relationship at different spatiotemporal scales. Therefore, in the context of global climate and environmental change, exploring the forest–water relationship and its spatiotemporal variation mechanism has become an urgent issue to be addressed.

This Special Issue aims to present an overview of the most recent advances in the field of the hydrological impacts and responses of forests to changes in water-related conditions in diverse spatiotemporal scales. Papers of all theoretical, methodological, and practical studies on forest–water relationships and management are welcome.

Potential topics include, but are not limited to:

  • Water use through evaporation and/or transpiration;
  • Hydrological modelling;
  • Impact of afforestation on the hydrological process and water yields;
  • Tree water use strategy;
  • Forest growth and water use;
  • Vegetation carrying capacity of water resources;
  • Coupled climate–landform–soil–vegetation–water processes;
  • Integrated forest–water management.

Prof. Dr. Yanhui Wang
Dr. Zebin Liu
Guest Editors

Manuscript Submission Information

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Keywords

  • ecohydrology
  • forest evapotranspiration
  • runoff
  • water use
  • vegetation carrying capacity
  • sap flow
  • infiltration and soil moisture
  • modelling

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Published Papers (1 paper)

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Research

14 pages, 5927 KiB  
Article
Enhancing Root Water Uptake and Mitigating Salinity through Ecological Water Conveyance: A Study of Tamarix ramosissima Ledeb. Using Hydrus-1D Modeling
by Lei Jiang, Shuai Guo, Liang He, Shengshuai Zhang, Ziyong Sun and Lei Wang
Forests 2024, 15(9), 1664; https://doi.org/10.3390/f15091664 - 21 Sep 2024
Viewed by 494
Abstract
In an arid climate with minimal rainfall, plant growth is constrained by water scarcity and soil salinity. Ecological Water Conveyance (EWC) can mitigate degradation risks faced by riparian plant communities in these regions. However, its effects on long-term dynamics of root zone soil [...] Read more.
In an arid climate with minimal rainfall, plant growth is constrained by water scarcity and soil salinity. Ecological Water Conveyance (EWC) can mitigate degradation risks faced by riparian plant communities in these regions. However, its effects on long-term dynamics of root zone soil water content, salt levels, and root water uptake remain unclear. This study examined how groundwater affects salt and water dynamics, in addition to root water uptake, under different scenarios involving Tamarix ramosissima Ledeb. The research was conducted in the lower reaches of the Tarim River in northwestern China. The Hydrus-1D model was used, following the EWC strategy. The results show that the distribution of T. ramosissima roots was significantly influenced by soil water and salt distributions, with 56.8% of roots concentrated in the 60–100 cm soil layer. Under water stress conditions, root water uptake reached 91.0% of the potential maximum when considering water stress alone, and 41.0% when accounting for both water and salt stresses. Root water uptake was highly sensitive to changes in Depth-to-Water Table (DWT), notably decreasing with lower or higher DWT at 40% of the reference level. EWC effectively enhances root water uptake by using water to leach salts from the root zone soil, with optimal results observed at 500–600 mm. This study advocates for sustainable EWC practices to support vegetation and combat desertification in the lower reaches of arid inland rivers. Full article
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