Ecological Restoration Projects Adapt Response of Net Primary Productivity of Alpine Grasslands to Climate Change Across the Tibetan Plateau DOI Creative Commons
Yuling Liang, Hui Zhao, Zhengrong Yuan

и другие.

Remote Sensing, Год журнала: 2024, Номер 16(23), С. 4444 - 4444

Опубликована: Ноя. 27, 2024

Alpine grassland is sensitive to climate change, and many studies have explored the trends in alpine vegetation. Most research focuses on effects of warming increased humidity vegetation greening. However, less attention has been given positive impacts human activities, particularly ecological restoration projects (ERPs). Our study utilized CASA (Carnegie Ames Stanford Approach) model simulate net primary productivity (NPP) grasslands Tibetan Plateau (TP) from 2000 2020. Additionally, a moving window approach was employed comparatively analyze changes response characteristics NPP change before after implementation ERPs. results indicated: (1) The exhibited fluctuating upward trend. growth rates meadow, grassland, desert were found be 2.38, 1.5, 0.8 g C·m−2·a−1, respectively. (2) annual average rate ERPs both higher than before, indicating that intensified trend grasslands. (3) reduced responsiveness temperature variations enhanced its precipitation. In detail, meadow precipitation, steppe while enhancing mitigated significantly

Язык: Английский

Investigating the Characteristics and Drivers of Slow Droughts and Flash Droughts: A Multi‐Temporal Scale Drought Identification Framework DOI Creative Commons
Zixuan Qi, Yuchen Ye, Yanpeng Cai

и другие.

Water Resources Research, Год журнала: 2025, Номер 61(2)

Опубликована: Фев. 1, 2025

Abstract Global climate change has altered the characteristics of conventional drought events, with an increasing number Slow droughts (SD) rapidly transitioning into Flash (FD). This study introduces a novel multi‐temporal scale identification framework (MTSDIF) that classifies historical agricultural events three types: SD, FD, and Slow‐to‐Flash Drought (SFD). Based on MTSDIF, GLDAS‐Noah root zone soil moisture dataset was used to analyze spatiotemporal characteristics, evolution, driving factors in China. Our confirms effectiveness proposed MTSDIF classifying different onset speeds (SD, SFD). The results indicate that, from 1980 2020, types China exhibited short‐term, medium‐term, long‐term periodic oscillations. Before 2000, SD were predominant type China, but post‐2000, areas affected by FD SFD have been continuously expanding. Compared key meteorological elements influencing show anomalies exceeding 0.5 times standard deviation. In southeastern regions human‐impacted soils, leached incept soils exhibit higher response frequency FD. Sea surface temperature indices, including interannual El Niño‐Southern Oscillation Pacific interdecadal variations such as +PDO −AMO, significantly influence occurrence monsoon ( p < 0.01). Together, highlight necessity understanding disparities consistencies land‐atmosphere‐ocean mechanisms behind varying speeds.

Язык: Английский

Процитировано

3
Development of an indicator system for solar-induced chlorophyll fluorescence monitoring to enhance early warning of flash drought DOI Creative Commons
Zixuan Qi, Yuchen Ye, Sun Lian

и другие.

Agricultural Water Management, Год журнала: 2025, Номер 312, С. 109397 - 109397

Опубликована: Март 9, 2025

Язык: Английский

Процитировано

1
Effect of growing season length on gross primary productivity increased in the Jinsha River watershed DOI Creative Commons

Mingwei Li,

Jing Zhang, Zhaofei Wu

и другие.

Journal of Plant Ecology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 2, 2025

Abstract Climate change has significantly altered the carbon and water cycles of terrestrial ecosystems. extended vegetation growing season enhanced ecosystem gross primary production (GPP). However, relative contributions climate drivers phenology to GPP remain unclear. Based on satellite-derived datasets from 1982 2018, we investigated spatiotemporal patterns its in Jinsha River Watershed. We found that increased which was primarily attributed changes length (GSL) temperature. The effect GSL is highest (r = 0.34), with being larger than temperature, precipitation, radiation 41% watershed. Importantly, area where predominantly influenced by 12% grid cells during period 2001–2018 compared 1982–2000, indicating playing an increasingly important role driving GPP. Our findings highlight dynamic responses associated phenological variations, crucial for improving understanding balance.

Язык: Английский

Процитировано

0
Impacts of meteorological drought on peak vegetation productivity of grasslands from perspectives of canopy structure and leaf physiology DOI
Wenrui Bai, Huanjiong Wang, Jingfeng Xiao

и другие.

International Journal of Biometeorology, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Язык: Английский

Процитировано

0
Effect of foliar application of low molecular weight chitosan on rice growth and yield in the Sudan Savanna Zone of Ghana DOI Creative Commons

Jacqueline Onumah,

Peter Osei Boamah,

Wilberforce Orlando Aduguba

и другие.

Carbohydrate Polymer Technologies and Applications, Год журнала: 2025, Номер unknown, С. 100753 - 100753

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Widespread Sensitivity of Vegetation to the Transition From Normal Droughts to Flash Droughts DOI Creative Commons
Junjie Liao, Yuyue Xu, Jiatian Pi

и другие.

Geophysical Research Letters, Год журнала: 2025, Номер 52(6)

Опубликована: Март 16, 2025

Abstract Global climate change has intensified flash droughts, which differ from traditional and have significant ecological impacts. However, differences in ecosystem responses to normal droughts China remain unclear, particularly terms of vegetation vulnerability resilience. Using a three‐dimensional clustering method, we identified disparities between these drought types 1982 2022 found that developed 40% faster than but caused more severe damage. With the transition sensitivity increased. Shapley's additive interpretation assessed role each environmental factor recovery. The results show characteristics drive resilience vegetation, whereas temperature vapor pressure deficit become significant. These insights provide deeper understanding tolerance under changing climatic conditions.

Язык: Английский

Процитировано

0
Likelihoods of compound dry-hot-windy events are projected to increase under global warming DOI
Qian Ma, Zengchao Hao, Yitong Zhang

и другие.

Atmospheric Research, Год журнала: 2025, Номер unknown, С. 108119 - 108119

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Spatio-Temporal Variation Characteristics of Grassland Water Use Efficiency and Its Response to Drought in China DOI Open Access

Mengxiang Xing,

Liang Liu,

Jianghua Zheng

и другие.

Water, Год журнала: 2025, Номер 17(8), С. 1134 - 1134

Опубликована: Апрель 10, 2025

Understanding the impact of drought on water use efficiency (WUE) grasslands is essential for comprehending mechanisms carbon–water cycle in context global warming. Nevertheless, cumulative and lagged effects WUE across different grassland types China remain unclear. This study investigates from 1982 to 2018. We employed Sen-MK trend test correlation analysis identify primary factors influencing temporal WUE. The results indicated that Chinese grasslands, various types, exhibited an upward over time, with most rapid increase observed meadow. Drought had both WUE, lasting average 5.2 months 6.1 months. Specifically, lasted 5.6 alpine subalpine meadow, slope, desert grassland, whereas 9 plain grassland. Furthermore, influence varied intensified increasing altitude. trends impacts aridity index (AI) zones were consistent those as a whole. Our findings underscore response their distinct primarily characterized by effects. research provides important reference value enhancing stability ecosystems.

Язык: Английский

Процитировано

0
Spring phenology and productivity alter vegetation vulnerability under summer droughts over Northern Hemisphere DOI
Gengxi Zhang, Huimin Wang, Shuyu Zhang

и другие.

Agricultural and Forest Meteorology, Год журнала: 2025, Номер 368, С. 110555 - 110555

Опубликована: Апрель 14, 2025

Язык: Английский

Процитировано

0
Increasing Sensitivity of Tree Radial Growth to Precipitation DOI Creative Commons
Tiewei Li, Bin He, Deliang Chen

и другие.

Geophysical Research Letters, Год журнала: 2024, Номер 51(16)

Опубликована: Авг. 27, 2024

Abstract The sensitivity of tree growth to precipitation regulates their responses drought, and is a crucial metric for predicting ecosystem dynamics vulnerability. Sensitivity may be changing with continuing climate change, yet comprehensive assessment its change still lacking. We utilized ring measurements from 3,044 sites, data CO 2 concentrations obtained monitoring stations, combined dynamic global vegetation models investigate spatiotemporal changes in the over past century. observed an increasing since around 1950. This increased was particularly pronounced arid biomes due effect elevated . While reduced humid regions, intensified water pressure caused by decreased sensitivity. Our findings suggest escalating vulnerability which increase risk mortality under future drought.

Язык: Английский

Процитировано

2