scholarly journals BALANCING PENMANS FORMULA ON POTENTIAL EVAPORATION AT A SEMI-ARID TROPICAL LOCATION

MAUSAM ◽  
2021 ◽  
Vol 47 (1) ◽  
pp. 99-100
Author(s):  
N. N. SRIVASTAVA ◽  
U. S. VICTOR ◽  
P. VIJAYA KUMAR ◽  
B. V. RAMANA RAO
Keyword(s):  
Potential Evaporation ◽  
Semi Arid ◽  
Tropical Location

A model coupling the effects of soil moisture and potential evaporation on the tree transpiration of a semi‐arid larch plantation

Ecohydrology ◽  
2016 ◽  
Vol 10 (1) ◽  
pp. e1764 ◽  
Author(s):  
Zhenhua Li ◽  
Pengtao Yu ◽  
Yanhui Wang ◽  
Ashley A. Webb ◽  
Cong He ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Model Coupling ◽  
Potential Evaporation ◽  
Larch Plantation ◽  
Tree Transpiration ◽  
Semi Arid

scholarly journals Water requirement and use by Jatropha curcas in a semi-arid tropical location

2012 ◽  
Vol 39 ◽  
pp. 175-181 ◽  
Author(s):  
A.V.R. Kesava Rao ◽  
Suhas P. Wani ◽  
Piara Singh ◽  
K. Srinivas ◽  
Ch. Srinivasa Rao
Keyword(s):  
Jatropha Curcas ◽  
Water Requirement ◽  
Semi Arid ◽  
Tropical Location

scholarly journals Spreading of the semi-arid climate across South Africa

2021 ◽  
Author(s):  
Mark R. Jury
Keyword(s):  
South Africa ◽  
Coupled Model ◽  
Arid Climate ◽  
Shelf Zone ◽  
Potential Evaporation ◽  
Sea Breezes ◽  
Arid Conditions ◽  
Upper Level ◽  
Long Timescales ◽  
Semi Arid

Abstract The eastward shift of semi-arid climate across South Africa is studied using satellite assimilated cloud cover, vegetation temperature and potential evaporation 1981–2019, and 21st century coupled model projections. Semi-arid thresholds over the plateau have shifted hundreds of kilometers eastward in the Vaal River catchment for potential evaporation, cloud fraction, and vegetation temperature. Coastal cloudiness has also changed due to sea breezes modified by shelf zone sea temperatures. Processes underlying the spread of semi-arid conditions across South Africa are quantified. Desiccation is related to greater westerly airflow, as the atmospheric boundary layer over the Kalahari preferentially links with the upper-level circulation. Warm dry spells and climate change enhance the meridional temperature gradient and accelerate the sub-tropical jet at both short- and long timescales. According to observations and reanalysis, dry westerlies prevail during the afternoon and induce +0.2 °C/year trends in vegetation temperature over the Highveld during the study period. Coupled model projections show that semi-arid conditions expand eastward from Bloemhof (25.5°E) by 50,000 km2, altering future adaptation strategies.

Ferrihydrite dissolution at the root zone of crops under semi-arid condition controls the plant uptake of uranium and arsenic

2020 ◽  
Author(s):  
Arindam Malakar ◽  
Michael Kaiser ◽  
Daniel D. Snow ◽  
Harkamal Walia ◽  
Chittaranjan Ray
Keyword(s):  
Plant Uptake ◽  
Root Zone ◽  
Arid Condition ◽  
Semi Arid

THE CLASSIFICATION OF LAND ACCORDING TO THE DEGREE OF RABBIT INFESTATION IN CENTRAL OTAGO

1987 ◽  
pp. 65-70
Author(s):  
I.G.C. Kerr ◽  
J.M. Williams ◽  
W.D. Ross ◽  
J.M. Pollard
Keyword(s):  
Carrying Capacity ◽  
Mediterranean Climate ◽  
Natural Habitat ◽  
Public Funding ◽  
Soil Survey ◽  
European Rabbit ◽  
Cultural Modification ◽  
Classification Information ◽  
Semi Arid

The European rabbit (Oryctolagus cuniculus) introduced into New Zealand in the 183Os, has consistently flourished in Central Otago, the upper Waitaki, and inland Marlborough, all areas of mediterranean climate. It has proved difficult to manage in these habitats. The 'rabbit problem' is largely confined to 105,000 ha of low producing land mostly in semi arid areas of Central Otago. No field scale modifications of the natural habitat have been successful in limiting rabbit numbers. The costs of control exceed the revenue from the land and continued public funding for control operations appears necessary. A system for classifying land according to the degree of rabbit proneness is described. Soil survey and land classification information for Central Otago is related to the distribution and density of rabbits. This intormation can be used as a basis for defining rabbit carrying capacity and consequent land use constraints and management needs. It is concluded that the natural rabbit carrying capacity of land can be defined by reference to soil survey information and cultural modification to the natural vegetation. Classification of land according to rabbit proneness is proposed as a means of identifying the need for, and allocation of, public funding tor rabbit management. Keywords: Rabbit habitat, rabbit proneness, use of rabbit prone land.

CASE STUDY: Evaluation of Different Cooling Systems in Lactating Heat-Stressed Dairy Cows in a Semi-Arid Environment

2007 ◽  
Vol 23 (5) ◽  
pp. 546-555 ◽  
Author(s):  
R. Burgos ◽  
L.J. Odens ◽  
R.J. Collier ◽  
L.H. Baumgard ◽  
M.J. VanBaale
Keyword(s):  
Dairy Cows ◽  
Arid Environment ◽  
Cooling Systems ◽  
Study Evaluation ◽  
Semi Arid
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