A GIS-based Local Spatial Autocorrelation for Drought Risk Assessment in Arid and Semi-Arid Environments: a Case Study in Ejin Oasis, Western China

2008 ◽  
Author(s):  
Meng-Lung Lin ◽  
Chien-Min Chu ◽  
Cheng-Wu Chen ◽  
Yu Cao ◽  
Jyh-yi Shih ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Spatial Autocorrelation ◽  
Western China ◽  
Drought Risk ◽  
Arid Environments ◽  
Semi Arid ◽  
Local Spatial Autocorrelation

scholarly journals Modeling Insights into Precipitation Deuterium Excess as an Indicator of Raindrop Evaporation in Lanzhou, China

Water ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 193
Author(s):  
Fenli Chen ◽  
Mingjun Zhang ◽  
Athanassios A. Argiriou ◽  
Shengjie Wang ◽  
Qian Ma ◽  
...  
Keyword(s):  
Arid Region ◽  
Quantitative Methods ◽  
Isotope Composition ◽  
Sampling Site ◽  
Western China ◽  
Cloud Base ◽  
Deuterium Excess ◽  
Semi Arid Region ◽  
Semi Arid

The deuterium excess in precipitation is an effective indicator to assess the existence of sub-cloud evaporation of raindrops. Based on the synchronous measurements of stable isotopes of hydrogen and oxygen (δ2H and δ18O) in precipitation for several sites in Lanzhou, western China, spanning for approximately four years, the variations of deuterium excess between the ground and the cloud base are evaluated by using a one-box Stewart model. The deuterium excess difference below the cloud base during summer (−17.82‰ in Anning, −11.76‰ in Yuzhong, −21.18‰ in Gaolan and −12.41‰ in Yongdeng) is greater than that in other seasons, and difference in winter is weak due to the low temperature. The variations of deuterium excess in precipitation due to below-cloud evaporation are examined for each sampling site and year. The results are useful to understand the modification of raindrop isotope composition below the cloud base at a city scale, and the quantitative methods provide a case study for a semi-arid region at the monsoon margin.

A new method to map groundwater-dependent ecosystem zones in semi-arid environments: A case study in Chile

2021 ◽  
pp. 151528
Author(s):  
Iongel Duran-Llacer ◽  
José Luis Arumí ◽  
Loretto Arriagada ◽  
Mauricio Aguayo ◽  
Octavio Rojas ◽  
...  
Keyword(s):  
New Method ◽  
Arid Environments ◽  
Semi Arid

Risk assessment of frost damage to sugar beet simulated under cold and semi-arid environments

2019 ◽  
Vol 63 (4) ◽  
pp. 511-521 ◽  
Author(s):  
Reza Deihimfard ◽  
Sajjad Rahimi-Moghaddam ◽  
Karine Chenu
Keyword(s):  
Risk Assessment ◽  
Sugar Beet ◽  
Frost Damage ◽  
Arid Environments ◽  
Semi Arid

scholarly journals Drought Risk Assessment: A Case Study in Punjab, Pakistan

2019 ◽  
Vol 35 (1) ◽  
Author(s):  
Muhammad Amin ◽  
Aftab Ahmad Khan ◽  
Abida Perveen ◽  
Zareen Rauf ◽  
Sher Shah Hassan ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Drought Risk
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