Results 81 to 90 of about 2,008 (184)

The Aridity Threshold of Soil Organic Carbon Density Along the Climate Aridity Gradient in the Alpine Ecosystem of the Qinghai‐Tibetan Plateau

Land Degradation &Development, Volume 37, Issue 14, Page 10205-10216, 30 August 2026.
ABSTRACT Soil organic carbon density (SOCD) is a key indicator for evaluating the stability of soil carbon pools, especially in alpine ecosystems that are sensitive to climate change. However, research on the response of SOCD to different aridity gradients is still limited. Therefore, we conducted extensive sampling along different aridity gradients of
Qiao Cui, Zongxing Li, Xufeng Wang, Juan Gui, Baijuan Zhang, Yunying Wang   +5 more
wiley   +1 more source

Climate change effects on drought severity [PDF]

Advances in Geosciences, 2008
This paper evaluates climate change effects on drought severity in the region of Thessaly, Greece. The Standardized Precipitation Index (SPI) has been used for estimation of drought severity.
A. Loukas, L. Vasiliades, J. Tzabiras
doaj  

Global Flash Drought Prediction Through Evaporative Stress Forecasting

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Flash droughts pose severe risks to societies and ecosystems due to their sudden onset and rapid intensification. Predicting their vegetation impacts at subseasonal timescales remains difficult. Advances in hybrid physics‐AI models and weather forecasting create new opportunities to enhance the predictability of evaporative stress, a key ...
Qiqi Gou, Akash Koppa, Hylke E. Beck, Yonghua Zhu, Haishen Lü, Hao Li, Huiling Yuan, Xiaohan Yu, Diego G. Miralles   +8 more
wiley   +1 more source

Consistency study of standardized precipitation index and standardized precipitation evapotranspiration index over the elevation gradient in the Yellow River Basin

Journal of Hydrology: Regional Studies
Study region: The Yellow River Basin (YRB), the second-largest river basin in China, spans three major geomorphological units: the Qinghai–Tibet Plateau, the Loess Plateau, and the North China Plain.
Meng Luo, Shengwei Zhang, Anne Griebel, Shuai Wang, Qiancheng Luo, Lin Yang, Qian Zhang   +6 more
doaj   +1 more source

Engineered Carbon Dots from a Traditional Herb Pair Orchestrate Concurrent Antioxidant and AP‐1‐Mediated Inflammation to Attenuate Renal Ischemia‐Reperfusion Injury

Advanced Science, Volume 13, Issue 44, 7 August 2026.
This study integrates two complementary traditional Chinese medicine components as precursors to synthesize bioactive AM‐AS@CDs. Compared with single‐component CDs, these dual‐component CDs exhibit enhanced antioxidant capacity and superior renoprotective effects.
Bixiao Liu, Fuying Zhu, Zhuqing Wang, Jiawen Chen, Xiaomiao Cui, Congzhong Yang, Yao Peng, Dengyuan Feng, Li Lu, Hui Wei, Xiaozhi Zhao   +10 more
wiley   +1 more source

Analysis of precipitation and draughts on bih territory based upon standardized precipitation index (SPI) [PDF]

, 2014
Most frequent indicator of the meteorological draught is the standardized precipitation index (SPI). This paper analyses SPI at 8 weather stations in Bosnia and Herzegovina. The calculations were perfomred per a calendar year and weather seasons between 1961 and 2010.
Ducić, Vladan, Burić, Dragan, Trbić, Goran, Cupać, Raduška   +3 more
openaire  

Upcycling Bio and Battery Waste Into Multivalent Calcium–Manganese Oxide Nanocomposites

Chemistry–Methods, Volume 6, Issue 8, August 2026.
Waste eggshells and spent alkaline batteries are transformed into multivalent Ca–Mn nanocomposites for CO oxidation. Correlative in situ XRD, STEM‐EELS, and XPS reveal how composition controls phase evolution, surface chemistry, and redox properties, identifying the structural features responsible for enhanced catalytic activity.
Qaisar Maqbool, Hamilton Uchenna Aharanwa, Thomas Haunold, Saba Yaseen, Nagihan Aydin, Werner Artner, Michael Stöger‐Pollach, Günther Rupprechter   +7 more
wiley   +1 more source

SPATIAL ANALYSIS OF DROUGHT IN GROBOGAN REGENCY USING STANDARDIZED PRECIPITATION INDEX (SPI)

GeoEco, 2018
<p><span style="font-size: medium;">This study aims to determine the </span><span style="font-size: medium;">spatial </span><span style="font-size: medium;">distribution of drought in Grobogan </span><span style="font-size: medium;">Regency </span><span style="font-size: medium;">using ...
Dwi Partini, Chatarina Muryani, Sigit Santosa   +2 more
openaire   +2 more sources

Projections of Meteorological Drought and Potential Evapotranspiration Using the RegCM4 Over Northeastern Iran

International Journal of Climatology, Volume 46, Issue 10, August 2026.
We downscale CanESM2 with the Regional Climate Model version 4 (20 km) and evaluate against 15 stations to derive monthly PET (Hargreaves–Samani) and SPEI for northeastern Iran (1990–2009, 2040–2059, 2080–2099). Results show robust PET increases and a shift toward more negative monthly SPEI—especially April–September—indicating earlier onset and longer
Nasrin Salehnia, Peter T. Wolter, Sylvester Chikabvumbwa, Fateme Hosseini, Sohrab Kolsoumi, Ali Farid, Hashem Zahedipour   +6 more
wiley   +1 more source

Are Modern Droughts Unprecedented?

AGU Advances, Volume 7, Issue 5, August 2026.
Abstract Global drought variability of past centuries remains poorly understood due to sparse instrumental records and limited paleoclimate reconstructions. Yet, quantifying long‐term forced and unforced variability is key for assessing the extremeness of modern (2000–2024) drought events.
Patricia Helpap, Stefan Brönnimann, Ralf Hand, Jörg Franke, Christoph C. Raible, Benjamin D. Stocker   +5 more
wiley   +1 more source