Results 61 to 70 of about 6,310 (207)

Functional response of U.S. grasslands to the early 21st-century drought [PDF]

, 2014
Grasslands across the United States play a key role in regional livelihood and national food security. Yet, it is still unclear how this important resource will respond to the prolonged warm droughts and more intense rainfall events predicted with ...
Augustine, DJ, Gunter, SA, Hamerlynck, EP, Hernandez, M, Huete, A, Kitchen, SG, McClaran, MP, Peters, DPC, Ponce-Campos, GE, Starks, PJ, Susan Moran, M, Zhang, Y   +11 more
core   +1 more source

Cuba's Three Autocratic Transitions: From Revolutionary Regime to (Post)Totalitarianism and New Authoritarianism?

Bulletin of Latin American Research, Volume 45, Issue 2, April 2026.
ABSTRACT Cuba is the oldest and most consolidated autocracy in the Americas. Its Revolution in 1959, the charisma of Fidel Castro, the single‐party system and the US embargo have made the island an exceptional case. However, recent developments such as popular protests, limited reforms, emigration or socio‐economic decline are bringing about some ...
Armando Chaguaceda, Susanne Gratius
wiley   +1 more source

Natural and land-use drivers of primary production in a highly vulnerable region of livestock production (Sierras del Este – Uruguay)

Journal of Agriculture and Rural Development in the Tropics and Subtropics, 2019
Sierras del Este is one of the two regions in Uruguay that are most vulnerable to climate change. A relevant vulnerability factor is the variability of the natural grasslands’ productivity.
Ismael Díaz, Marcel Achkar, Carolina Crisci, Néstor Mazzeo   +3 more
doaj   +1 more source

Impact of climate change on primary production of Inner Mongolian grasslands

Global Ecology and Conservation, 2020
Climate change has dramatic impacts on the aboveground net primary productivity (ANPP) of grassland ecosystems. Understanding the impacts of interannual climate change on grassland ecosystems allows strategies to be developed for their sustainable ...
Rina Su, Tao Yu, Buddhi Dayananda, Rentuya Bu, Jinhua Su, Qingyun Fan   +5 more
doaj   +1 more source

Illicit Drug‐Derived Volatile Organic Compounds as Markers for Application in Noncontact Detection Technology

The Chemical Record, Volume 26, Issue 3, March 2026.
This review highlights the characteristic odor markers of illicit drugs, emphasizing volatile markers from both natural and synthetic sources, and explores the shift from canine‐based detection to emerging noncontact sensing technologies. Illicit drug use remains a global concern, requiring effective detection methods to counter evolving concealment ...
Minwoo Kim, Solpa Lee, Anmo J. Kim, Cong Wang, Yongwoo Jang   +4 more
wiley   +1 more source

Using APAR to Predict Aboveground Plant Productivity in Semi-Aid Rangelands: Spatial and Temporal Relationships Differ

Remote Sensing, 2018
Monitoring of aboveground net primary production (ANPP) is critical for effective management of rangeland ecosystems but is problematic due to the vast extent of rangelands globally, and the high costs of ground-based measurements.
Rowan Gaffney, Lauren M. Porensky, Feng Gao, J. Gonzalo Irisarri, Martín Durante, Justin D. Derner, David J. Augustine   +6 more
doaj   +1 more source

Ecosystem resilience despite large-scale altered hydroclimatic conditions [PDF]

, 2013
Climate change is predicted to increase both drought frequency and duration, and when coupled with substantial warming, will establish a new hydroclimatological model for many regions.
A Dai, A Huete, A Savitzky, AK Knapp, Alfredo Huete, Anthony R. Buda, B Walker, CD Allen, CW Thornthwaite, Cynthia Bresloff, David D. Bosch, DD Breshears, Debra P. C. Peters, Derek Eamus, Diane S. Montoya, E. John Sadler, GM MacDonald, Guillermo E. Ponce-Campos, HN Le Houérou, JA Morgan, Jack A. Morgan, JF Weltzin, L Zhang, M Jung, M. Susan Moran, Mark S. Seyfried, Mitchel P. McClaran, N Wells, P Jönsson, Patrick J. Starks, PCD Milly, RK Monson, RL Scott, SH Roxburgh, SR Saleska, Stacey A. Gunter, Stanley G. Kitchen, SW Running, Tamara Heartsill Scalley, TE Huxman, Travis E. Huxman, W. Henry McNab, Yongguang Zhang   +42 more
core   +1 more source

Precipitation Regimes Reshape Grazing and Nitrogen Effects on Diversity–Productivity Coupling in Arid Steppes: Mechanisms and Thresholds

Earth's Future, Volume 14, Issue 3, March 2026.
Abstract Dryland ecosystem stability is increasingly threatened by amplified precipitation variability, nitrogen (N) deposition, and grazing pressure. While these drivers independently alter grassland structure, their interactive effects on the critical diversity‐productivity relationship remain poorly understood, particularly under contrasting ...
Jianfei Yu, Hanyue Bi, Jianguo Ma, Xingxin Lu, Fujiang Hou, Xingguo Han, Xiaobo Wang   +6 more
wiley   +1 more source

Divergent Responses of Grassland Productivity to Large-Scale Atmospheric Circulations Across Ecoregions on the Mongolian Plateau

Atmosphere
The Mongolian Plateau grassland (MPG) is critical for ecological conservation and sustainability of regional pastoral economies. Aboveground net primary productivity (ANPP) is a key indicator of grassland health and function, which is highly sensitive to
Cuicui Jiao, Xiaobo Yi, Ji Luo, Ying Wang, Yuanjie Deng, Xiao Guo   +5 more
doaj   +1 more source

Regional-Scale High Spatial Resolution Mapping of Aboveground Net Primary Productivity (ANPP) from Field Survey and Landsat Data: A Case Study for the Country of Wales

Remote Sensing, 2017
This paper presents an alternative approach for high spatial resolution vegetation productivity mapping at a regional scale, using a combination of Normalised Difference Vegetation Index (NDVI) imagery and widely distributed ground-based Above-ground Net
Emma J. Tebbs, Clare S. Rowland, Simon M. Smart, Lindsay C. Maskell, Lisa R. Norton   +4 more
doaj   +1 more source