scholarly journals Resilience of dry tropical rangelands : How native palms and trees mediate the effects of seasonal droughts

2021 ◽  
Author(s):  
Ivan Raniero Hernández Salmerón
Keyword(s):  
Seasonal Droughts

Household and community responses to seasonal droughts in rural areas of Costa Rica

Waterlines ◽  
2019 ◽  
Vol 38 (4) ◽  
pp. 286-304
Author(s):  
Róger Madrigal-Ballestero ◽  
Tabaré Capitán ◽  
Ariana Salas ◽  
Daniela Córdoba
Keyword(s):  
Costa Rica ◽  
Rural Areas ◽  
Community Responses ◽  
Seasonal Droughts

Increased Browning of Woody Vegetation due to Continuous Seasonal Droughts in Yunnan Province, China

2014 ◽  
Vol 7 (2) ◽  
pp. 120-125 ◽  
Author(s):  
Chen Hong-Ping ◽  
Jia Gen-Suo ◽  
Feng Jin-Ming ◽  
Dong Yan-Sheng
Keyword(s):  
Yunnan Province ◽  
Woody Vegetation ◽  
Seasonal Droughts

Probabilistic forecasting of seasonal droughts in the Pearl River basin, China

2015 ◽  
Vol 30 (7) ◽  
pp. 2031-2040 ◽  
Author(s):  
Yongqin David Chen ◽  
Qiang Zhang ◽  
Mingzhong Xiao ◽  
Vijay P. Singh ◽  
Sheng Zhang
Keyword(s):  
River Basin ◽  
Pearl River ◽  
Pearl River Basin ◽  
Probabilistic Forecasting ◽  
Seasonal Droughts ◽  
The Pearl River ◽  
The Pearl River Basin

scholarly journals Biophysical modelling of intra-ring variations in tracheid features and wood density of Pinus pinaster trees exposed to seasonal droughts

2015 ◽  
Vol 35 (3) ◽  
pp. 305-318 ◽  
Author(s):  
S. Wilkinson ◽  
J. Ogee ◽  
J.-C. Domec ◽  
M. Rayment ◽  
L. Wingate
Keyword(s):  
Wood Density ◽  
Pinus Pinaster ◽  
Seasonal Droughts ◽  
Biophysical Modelling

Extreme seasonal droughts and floods in Amazonia: causes, trends and impacts

2015 ◽  
Vol 36 (3) ◽  
pp. 1033-1050 ◽  
Author(s):  
J. A. Marengo ◽  
J. C. Espinoza
Keyword(s):  
Droughts And Floods ◽  
Seasonal Droughts

scholarly journals Morphological Changes in Sugarcane as a Function of Metallurgic Slag and Gypsum

2019 ◽  
Vol 11 (14) ◽  
pp. 291
Author(s):  
Paulo R. A. Clemente ◽  
Benigno F. A. de Almeida ◽  
Diogo H. de A. B. ◽  
André L. J. Silva ◽  
Vinicius S. G. da Silva ◽  
...  
Keyword(s):  
Agricultural Production ◽  
Soil Acidity ◽  
Morphological Changes ◽  
Block Design ◽  
Limiting Factors ◽  
Sugarcane Plant ◽  
Morphological Aspects ◽  
Randomized Block Design ◽  
Seasonal Droughts ◽  
Sugarcane Ratoon

Drought associated with soil acidity and exchangeable Al3+ in depth are one of the main limiting factors in agricultural production in Northeast Brazil. Acidity correctives such as limestone, metallurgy slag, and gypsum are alternatives to minimize the effects of seasonal droughts on the crop. A field study was carried out to evaluate the effect of the slag and gypsum on the morphological aspects and productivity of sugarcane during two crop cycles. A randomized block design in subdivided plots scheme with four replications was used. The plot consisted of five rows of 10 m length each, spaced 1 m from each other. Treatments consisted of five levels of metallurgy slag (0; 1; 2; 3 and 4 Mg ha-1) and two levels of gypsum (0 and 1.9 Mg ha-1). Slag and gypsum had no effect on sugarcane plant yield. However, regarding sugarcane ratoon, slag increased the yield per hectare by 1.96 Mg ha-1 and sugar yield by 0.33 Mg ha-1 per Mg of applied slag. Slag and gypsum provided better biomass allocation to the root system and improved root distribution along the soil profile.

scholarly journals Comparison of Meteorological and Agricultural Drought Indicators across Ethiopia

2019 ◽  
Author(s):  
Dawit Teweldebirhan Tsige ◽  
Venkatesh Uddameri ◽  
Farhang Forghanparast ◽  
Elma Hernandez ◽  
Stephen Ekwaro-Osire
Keyword(s):  
Soil Moisture ◽  
Meteorological Drought ◽  
Evaluation Framework ◽  
Agricultural Drought ◽  
Hydrologic Processes ◽  
Preparedness Planning ◽  
Drought Indicators ◽  
Drought Preparedness ◽  
Seasonal Droughts ◽  
Meteorological Droughts

Meteorological drought indicators are commonly used for agricultural drought contingency planning in Ethiopia. Agricultural droughts arise due to soil moisture deficits. While these deficits may be caused by meteorological droughts, the timing and duration of agricultural droughts need not coincide with the onset of meteorological droughts due to soil moisture buffering. Similarly, agricultural droughts can persist even after the cessation of meteorological droughts due to delayed hydrologic processes. Understanding the relationship between meteorological and agricultural droughts is therefore crucial. An evaluation framework was developed to compare meteorological and agricultural droughts using a suite of exploratory and confirmatory tools. Receiver operator characteristics (ROC) was used to understand the covariation of meteorological and agricultural droughts. Comparisons were carried out between SPI-2, SPEI-2 and Palmer Z-index to assess intra-seasonal droughts and between SPI-6, SPEI-6 and PDSI for full-season evaluations. SPI was seen to correlate well with selected agricultural drought indicators but did not explain all the variability noted in agricultural droughts. The relationships between meteorological and agricultural droughts exhibited spatial variability which varied across indicators. SPI is better suited to predict non-agricultural drought states more so than agricultural drought states. Differences between agricultural and meteorological droughts must be accounted for better drought-preparedness planning.

scholarly journals Real time implementation of agricultural contingency plans to cope with weather aberrations in Indian agriculture

MAUSAM ◽  
2021 ◽  
Vol 67 (1) ◽  
pp. 183-194
Author(s):  
CH. SRINIVASA RAO RAO ◽  
G. RAVINDRA CHARY ◽  
N. RANI ◽  
V. S. BAVISKAR
Keyword(s):  
Real Time ◽  
Extreme Events ◽  
Agricultural Production ◽  
Extreme Weather Events ◽  
Horticultural Crops ◽  
Indian Agriculture ◽  
Weather Events ◽  
Overall Stability ◽  
Droughts And Floods ◽  
Seasonal Droughts

Weather aberrations impact agriculture and allied sectors in one or other parts of the India round the year. Seasonal droughts and extreme weather events in 21st century have caused alarming losses not only in agricultural production but also horticulture, livestock, poultry and fisheries. ICAR-CRIDA, SAUs and DAC, MoA, GoI, prepared more than 580 district level agriculture plans within formation on contingency measures for sustaining higher agriculture production and to cope with extreme events. Real-time contingency planning (RTCP) is being conceptualized and implemented at micro level in farmers’ fields in this country. RTCP implementation during delayed onset of monsoon, seasonal droughts and floods resulted in better crop performance, higher agricultural production, better incomes and overall stability in house-hold livelihoods. In this paper, the real-contingency measures to cope with extreme events for management of horticultural crops, livestock, poultry and fisheries are proposed. Further, the preparedness for RTCP implementation with policy initiatives is also suggested.

Evaluating severity–area–frequency (SAF) of seasonal droughts in Bangladesh under climate change scenarios

2020 ◽  
Vol 34 (2) ◽  
pp. 447-464 ◽  
Author(s):  
Mahiuddin Alamgir ◽  
Najeebullah Khan ◽  
Shamsuddin Shahid ◽  
Zaher Mundher Yaseen ◽  
Ashraf Dewan ◽  
...  
Keyword(s):  
Climate Change ◽  
Climate Change Scenarios ◽  
Seasonal Droughts
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