Deep soil moisture has limited impact on mitigating drought stress effects on plant transpiration in a subtropical secondary forest

Plant and Soil, Год журнала: 2025, Номер unknown

Опубликована: Март 26, 2025

Язык: Английский

---

Changes in water-use strategies and soil water status of degraded poplar plantations in water-limited areas

Agricultural Water Management, Год журнала: 2024, Номер 296, С. 108799 - 108799

Опубликована: Март 28, 2024

Poplar plantations play an active role in windbreak and sand-fixation timber production water-limited areas, but the large-scale are experiencing degradation, characterized by short trees, small size, dieback. Moreover, potential impacts of plantation degradation on ecohydrological processes soil-plant systems remain unclear. We continuously measured soil water content (SWC), hydrogen oxygen isotopic compositions plant xylem water, carbon leaf, sap flow velocity poplar trees under various degraded (no degraded, ND; lightly LD; severely SD) during 2021 growing season (May–September). also investigated tree root at a depth 0–200 cm. Our results showed that as intensified, weight density different depths decreased proportion shallow layer (0–40 cm) increased. Although SWC did not change plantations, SWCs middle (40–80 deep (80–200 were higher LD SD than ND which might be related to reduced transpiration plantations. The Bayesian mixing model all can shift source from layers process wetting drying. Evidence leaf isotopes suggested increased sensitivity intrinsic water-use efficiency SWC. findings demonstrate normal growth is prone desiccation due high demand alleviate depletion low transpiration. For rain-fed proper thinning measures reducing evaporation may necessary avoid excess consumption soils.

Язык: Английский

---

Hydrological niche separation between two coexisting shrubs in an extremely arid region

Journal of Hydrology Regional Studies, Год журнала: 2025, Номер 57, С. 102170 - 102170

Опубликована: Янв. 5, 2025

Язык: Английский

---

Does slope cropland to natural and artificial conversion change patterns of soil moisture–carbon trade-offs in time and depth on the water-scarce Loess Plateau, China?

Agriculture Ecosystems & Environment, Год журнала: 2025, Номер 385, С. 109583 - 109583

Опубликована: Фев. 24, 2025

Язык: Английский

---

Optimizing Soil Pore Structure in Mined Land: Integrating Arbuscular Mycorrhizal Fungi and Mixed Planting for Ecological Restoration

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Апрель 17, 2025

Aims The fragile soil structure of coal mine dumps in arid and semi-arid regions presents a major obstacle to ecological restoration. Phytoremediation strategies enhancing porosity are critical, yet Arbuscular Mycorrhizal Fungi (AMF) inoculation efficacy compacted soils combined with mixed planting remains unclear. Methods This study employed two-factor experiment 3D CT scanning assess AMF effects on Amorpha fruticosa root morphology, pore structure, infiltration at northern China open-pit dump. Results Our results demonstrated that both significantly improved development. Notably, the treatment (A-M) yielded most uniform distribution connected pores within cores exhibited highest model complexity correlation analyses. Furthermore, A-M also maximized fractal dimension permeability while reducing tortuosity improving connectivity, attaining peak permeability. With respect led substantial increases morphological characteristics density characteristics. Partial least squares path analysis revealed observed improvements were primarily driven by modifications induced treatments. Conclusions synergistic application effectively optimized architecture enhanced dynamics dump sites, through their stimulatory plant These findings provided strong scientific foundation practical guidance for advancing restoration efforts mining regions.

Язык: Английский

---

Identifying the contrasting water uptake patterns of dominant afforestation species along an aridity gradient on the Chinese Loess Plateau using stable water isotopes

CATENA, Год журнала: 2025, Номер 255, С. 109024 - 109024

Опубликована: Апрель 19, 2025

Язык: Английский

---

Biological and environmental controls on nighttime water-use behaviors in Populus simonii in semi-arid areas of the Chinese Loess plateau

Agricultural and Forest Meteorology, Год журнала: 2023, Номер 346, С. 109874 - 109874

Опубликована: Дек. 28, 2023

Язык: Английский

---

Comprehensive Overview of <i>Populus</i> <i>simonii</i> Research in the Recent Years

Open Journal of Ecology, Год журнала: 2024, Номер 14(05), С. 419 - 434

Опубликована: Янв. 1, 2024

As an important ecological tree species in northern China, Populus simonii plays a crucial role maintaining balance and promoting environmental sustainability. The academic community has conducted series of in-depth studies on this species, covering key areas such as genomics, survival mechanisms, genetic breeding. Through the analysis genomic structure function P. simonii, we have not only revealed molecular basis for its adaptation to harsh environments but also identified genes that promote growth resistance pests diseases. Furthermore, exploring mechanisms deepened our understanding stress traits, including how it effectively copes with abiotic stresses drought, salinization, heavy metal pollution. In breeding, significant progress been made through application modern biotechnology, improving rate wood quality enhancing adaptability disease resistance. These research findings enriched knowledge biological characteristics provided solid scientific foundation restoration, forestry production, management.

Язык: Английский

---

Biophysical factors affecting transpiration of typical afforestation species under environmental change in the Loess Plateau, China

Journal of Hydrology, Год журнала: 2024, Номер unknown, С. 132441 - 132441

Опубликована: Ноя. 1, 2024

Язык: Английский

---

Water use characteristics of coexisting sand‐binding vegetation in two typical soil habitats in the desert steppe of China

Hydrological Processes, Год журнала: 2024, Номер 38(5)

Опубликована: Май 1, 2024

Abstract Understanding the water use characteristics and relationship of coexisting vegetation in a mixed‐species plantation trees shrubs is crucial for sustainable restoration degraded arid areas. This study investigated characteristic sand‐binding combinations sierozem habitat ( Populus przewalskii Maxim namely Populus‐S Caragana liouana ) aeolian sandy soil habitats Populus‐A Salix psammophila desert steppe. By analysing δ 2 H 18 O isotopes xylem, water, groundwater precipitation, Bayesian MixSIAR model was employed to quantitatively assess utilization plants. Throughout growing season, habitat, C. exhibits highest efficiency utilizing moisture above 60 cm (53.45%) displays adaptable strategies. In contrast, predominantly relies on deep below plus (63.89%). both S. similarly favour (66.77% 67.60%, respectively). During transition period from dry wet seasons, although shifted their sources deeper shallower ones, there considerable overlap used by . led competition resources exacerbated depletion seasons. Conversely, partitioning between facilitated allocation two species. The findings highlight need species‐specific consideration resource within plantations shrubs, which ecosystems.

Язык: Английский

---