Relationship between the development of a convective mixed layer and dust weather in arid and semi‐arid regions of East Asia

2021 ◽  
Author(s):  
Kumi Nakamae ◽  
Tetsuya Takemi
Keyword(s):  
East Asia ◽  
Mixed Layer ◽  
Arid Regions ◽  
Dust Weather ◽  
Convective Mixed Layer ◽  
Semi Arid

scholarly journals An Overview of the Characteristics and Potential of Calotropis procera From Botanical, Ecological, and Economic Perspectives

2021 ◽  
Vol 12 ◽  
Author(s):  
Amarpreet Kaur ◽  
Daizy R. Batish ◽  
Shalinder Kaur ◽  
Bhagirath S. Chauhan
Keyword(s):  
East Asia ◽  
Arid Regions ◽  
Pacific Islands ◽  
Economic Value ◽  
Calotropis Procera ◽  
Future Research ◽  
Synthesis Of Nanoparticles ◽  
Potential Applications ◽  
Environmental Weed ◽  
Semi Arid

Calotropis procera (Aiton) Dryand. (commonly known as the apple of sodom, calotrope, and giant milkweed) is an evergreen, perennial shrub of the family Apocynaceae, mainly found in arid and semi-arid regions. It is a multipurpose plant, which can be utilized for medicine, fodder, and fuel purposes, timber and fiber production, phytoremediation, and synthesis of nanoparticles. It has been widely used in traditional medicinal systems across North Africa, Middle East Asia, and South-East Asia. At present, it is being extensively explored for its potential pharmacological applications. Several reports also suggest its prospects in the food, textile, and paper industries. Besides, C. procera has also been acknowledged as an ornamental species. High pharmacological potential and socio-economic value have led to the pantropical introduction of the plant. Morpho-physiological adaptations and the ability to tolerate various abiotic stresses enabled its naturalization beyond the introduced areas. Now, it is recognized as an obnoxious environmental weed in several parts of the world. Its unnatural expansion has been witnessed in the regions of South America, the Caribbean Islands, Australia, the Hawaiian Islands, Mexico, Seychelles, and several Pacific Islands. In Australia, nearly 3.7 million hectares of drier areas, including rangelands and Savannahs, have been invaded by the plant. In this review, multiple aspects of C. procera have been discussed including its general characteristics, current and potential uses, and invasive tendencies. The objectives of this review are a) to compile the information available in the literature on C. procera, to make it accessible for future research, b) to enlist together its potential applications being investigated in different fields, and c) to acknowledge C. procera as an emerging invasive species of arid and semi-arid regions.

scholarly journals Precipitation Changes in Semi-arid Regions in East Asia Under Global Warming

2021 ◽  
Vol 9 ◽  
Author(s):  
Xiaodan Guan ◽  
Kaiwei Zhu ◽  
Xiaoqian Huang ◽  
Xinrui Zeng ◽  
Yongli He
Keyword(s):  
East Asia ◽  
Loess Plateau ◽  
Arid Regions ◽  
Southern Oscillation ◽  
The Loess Plateau ◽  
Westward Expansion ◽  
Westerly Winds ◽  
Negative Effect ◽  
Precipitation Changes ◽  
Semi Arid

The semi-arid regions of East Asia are located in the transition area between regions dominated by the monsoon system and by westerly winds; their interaction is the key to understand precipitation changes, especially in the summer. Our results show that the enhancement of both the monsoon and westerly winds occurs in wet years, leading to stronger convergence and more rainfall. Weakening of both the monsoon and westerly winds occurs in dry years and results in less rainfall. Such interaction between the monsoon and westerlies is not constant; the boundary of their effects is changing all the time. As the monsoon strengthens, it shifts to the west in wet years and covers most of the semi-arid regions, and the negative effect of the El Niño-Southern Oscillation (ENSO) system on precipitation in the semi-arid regions becomes obvious. However, westward expansion has not been evident over the past 70 years in historic data. In the future, the monsoon will obviously expand westward, and the precipitation over the Loess Plateau will gradually increase as the monsoon boundary expand westward until the end of the 21st century. This change indicates that more rainfall will occur in the semi-arid regions of East Asia, which could dramatically change the ecological environment, especially over the Loess Plateau.

scholarly journals Spatial distribution of greenhouse gas concentrations in arid and semi-arid regions: A case study in East Asia

2013 ◽  
Vol 91 ◽  
pp. 119-128 ◽  
Author(s):  
M. Guo ◽  
X.-F. Wang ◽  
J. Li ◽  
K.-P. Yi ◽  
G.-S. Zhong ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
East Asia ◽  
Greenhouse Gas ◽  
Arid Regions ◽  
Semi Arid

Semi-arid regions of the boreal zone as demonstrated in the Yukon Basin

Erdkunde ◽  
2000 ◽  
Vol 54 (1) ◽  
pp. 1-19 ◽  
Author(s):  
Ralph Jätzold
Keyword(s):  
Arid Regions ◽  
Boreal Zone ◽  
Semi Arid

BIODIVERSITY OF HALOPHYTES IN SEMI-ARID REGIONS CASE OF ZAHREZ GHARBI AND ZAHREZ CHERGUI (ZAAFRANE-DJELFA) IN ALGERIA

2020 ◽  
Vol 76 (11) ◽  
Author(s):  
Senni Rachida ◽  
De Belair Gerard ◽  
Abdelkrim Hacene
Keyword(s):  
Arid Regions ◽  
Semi Arid

Water Resources Management in the Semi-Arid Central Valley of California

1987 ◽  
Vol 19 (9) ◽  
pp. 97-106
Author(s):  
J. J. Vasconcelos
Keyword(s):  
Resource Management ◽  
Ground Water ◽  
Water Resource ◽  
Water Resource Management ◽  
Arid Regions ◽  
Central Valley ◽  
The United States ◽  
Policy Makers ◽  
Ground Water Resource ◽  
Semi Arid

Hater resource managers in semi-arid regions are faced with some unique problems. The wide variations in precipitation and stream flows in semi-arid regions increase man's dependence on the ground water resource for an ample and reliable supply of water. Proper management of the ground water resource is absolutely essential to the economic well being of semi-arid regions. Historians have discovered the remains of vanished advanced civilizations based on irrigated agriculture which were ignorant of the importance of proper ground water resource management. In the United States a great deal of effort is presently being expended in the study and control of toxic discharges to the ground water resource. What many public policy makers fail to understand is that the potential loss to society resulting from the mineralization of the ground water resource is potentially much greater than the loss caused by toxic wastes discharges, particularly in developing countries. Appropriations for ground water resource management studies in developed countries such as the United States are presently much less than those for toxic wastes management and should be increased. It is the reponsibility of the water resource professional to emphasize to public policy makers the importance of ground water resource management. Applications of ground water resource management models in the semi-arid Central Valley of California are presented. The results demonstrate the need for proper ground water resource management practices in semi-arid regions and the use of ground water management models as a valuable tool for the water resource manager.

Sign in / Sign up

Export Citation Format

Share Document