Coexisting plants restored in karst desertification areas cope with drought by changing water uptake patterns and improving water use efficiency

Journal of Hydrology, Год журнала: 2025, Номер unknown, С. 132813 - 132813

Опубликована: Фев. 1, 2025

Язык: Английский

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The Global Situation of Karst Desertification Research Based on Forest Ecology

Forests, Год журнала: 2024, Номер 15(1), С. 126 - 126

Опубликована: Янв. 8, 2024

Karst desertification (KD) is a major ecological and environmental problem threatening human survival development in karst areas. In order to explore the research situation trend of KD based on forest ecology, this paper provides systematic literature review CNKI WoS databases, which involves search, appraisal, synthesis, analysis. We performed statistical visual analysis 2955 studies acquired between 1 January 1995 30 June 2023, including time distribution studies, hot trends, pivotal clusters, co-citations, main publishing keyword bursts. The results show following. (1) shows fluctuating growth trend, trends are divided into accumulation, development, expansion stages. (2) clusters comprised three aspects: study area method, driving genetic mechanisms, control technology models. (3) forms China-centered network, dominated by institutions scholars southwestern China. (4) Future needs solve series related scientific issues technological for ecosystem function optimization, product supply capacity enhancement, value realization, industry formation, rural revitalization control. purpose reveal relating highlight future direction

Язык: Английский

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Response of soil organic carbon to land-use change after farmland abandonment in the karst desertification control

Plant and Soil, Год журнала: 2024, Номер 501(1-2), С. 595 - 610

Опубликована: Фев. 13, 2024

Язык: Английский

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Seasonal transpiration dynamics and water use strategy of a farmland shelterbelt in Gurbantunggut Desert oasis, northwestern China

Agricultural Water Management, Год журнала: 2024, Номер 295, С. 108777 - 108777

Опубликована: Март 16, 2024

Farmland shelterbelts provide an ecological barrier to oases, but their growth is inhibited or even dies under water scarcity. Therefore, it necessary understand the response of farmland environmental changes for own survival in order promote long-term healthy development agroforestry systems and improve management oases northwest arid region. In this study, we measured sap flow factors determine transpiration dynamics its influencing factors. The seasonal variations use strategy Populus alba var. pyramidalis Bunge were identified by using stable isotopes δ18O xylem, soil groundwater coupled with Iso-Source model. results showed that populus was significantly higher growing season (more than 80% total transpiration) non-growing season, closely related air temperature, vapor pressure deficit, content, temperature. had variations. obtained predominantly from 0–40 cm (approximately 75%) wet spring then switched deeper sources (40–150 groundwater) as progressed. contribution increased 84–92% summer autumn. This suggested has plasticity, could explore stress increased. ability switch rapidly among different put a plant at advantage if competition occurs within ecosystem. Our findings can insights into temporal well adopted counteract drought associated shallow soils desert oasis ecosystems.

Язык: Английский

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Disentangling the impact of climate change, human activities, vegetation dynamics and atmospheric CO2 concentration on soil water use efficiency in global karst landscapes

The Science of The Total Environment, Год журнала: 2024, Номер 932, С. 172865 - 172865

Опубликована: Апрель 29, 2024

Язык: Английский

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Comparative analysis of water-use strategies in three subtropical mangrove species: a study of sap flow and gas exchange monitoring

Tree Physiology, Год журнала: 2024, Номер 44(9)

Опубликована: Авг. 13, 2024

Abstract Water-use strategies play a crucial role in the adaptive capabilities of mangroves to saline intertidal conditions, yet intricacies daily water-use patterns mangrove species, which are pivotal for maintaining water balance, remain poorly understood. In this comprehensive study, we aimed clarify use three co-occurring Avicennia marina, Aegiceras corniculatum and Kandelia obovata, through stem sap flow monitoring, leaf gas exchange diameter change measurements. Our findings revealed that density reached peak about 1 h earlier than Kandelia. When transpiration was strong, used storage meet demand, while synchronized storage. These species adopted cross-peak unique regulate their balance. Kandelia, per sapwood area significantly lower, efficiency higher those Aegiceras, indicating more conservative efficient strategy. Sap most sensitive environmental changes, limited dissipation by tightly controlling stomata. Meteorological factors (photosynthetically active radiation, vapor pressure deficit air temperature) were main driving flow. The increase soil temperature can promote salinity resulted use. results highlight diversity among pinpointing as at navigating changing conditions habitats future climate. conclusion, our provide mesoscale perspective on characteristics also provides theoretical basis afforestation ecological restoration.

Язык: Английский

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Bedrock Controls on Water and Energy Partitioning

Water Resources Research, Год журнала: 2024, Номер 60(8)

Опубликована: Авг. 1, 2024

Abstract Across diverse biomes and climate types, plants use water stored in bedrock to sustain plant transpiration. Bedrock storage ( S ), addition soil moisture, thus plays an important role cycling should be accounted for the context of surface energy balances streamflow generation. Yet, extent which impacts hydrologic partitioning influences latent heat fluxes has yet quantified at large scales. This is particularly Mediterranean climates, where majority precipitation offset from delivery must rely on retained wet season support summer growth. Here we present a simple modified balance approach quantify controlling partitioning. Specifically, tracked evapotranspiration excess mapped capacity , mm) across western US Budyko's framework. Our findings indicate that necessary transpiration forests Sierra Nevada—some most productive Earth—as early as April every year, counter current conventional thought exclusively used late dry under extremely conditions. We found proportion returns atmosphere would decrease dramatically without access . When converted energy, median monthly flux associated with can exceed 100 W/m 2 during season.

Язык: Английский

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Adaptive water use strategies of artificially revegetated plants in a water-limited desert: A case study from the Mu Us Sandy Land

Journal of Hydrology, Год журнала: 2024, Номер unknown, С. 132103 - 132103

Опубликована: Сен. 1, 2024

Язык: Английский

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Spatio-temporal dynamics of grassland ecosystem services and the segmentation effects of their drivers: a case in South China Karst

Global Ecology and Conservation, Год журнала: 2025, Номер unknown, С. e03392 - e03392

Опубликована: Янв. 1, 2025

Язык: Английский

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Water use strategies and water conservation in Picea schrenkiana forests in the Kashi River Basin, China

Journal of Hydrology Regional Studies, Год журнала: 2025, Номер 58, С. 102237 - 102237

Опубликована: Фев. 28, 2025

Язык: Английский

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