Assessing the role of lichens in the prevention of dust emission in dryland: Case study at north-eastern Iran

2021 ◽  
Vol 50 ◽  
pp. 100697
Author(s):  
Atoosa Gholamhosseinian ◽  
Adel Sepehr ◽  
Mohammad Sohrabi ◽  
Iraj Emadodin
2021 ◽  
Vol 18 (6) ◽  
pp. 1591-1608
Author(s):  
Maryam Tajbakhshian ◽  
Abolfazl Mosaedi ◽  
Mohamad Hosein Mahmudy Gharaie ◽  
Sayyed Reza Moussavi Harami

2022 ◽  
pp. 101852912110652
Author(s):  
Devpriya Sarkar

In 2015, Sikkim, a North-Eastern state of India, achieved the state of being fully organic. Later, states like Nagaland, Mizoram, Meghalaya, Goa and Kerala have declared their intentions to be fully organic. In Nagaland, more than 47% of the population is engaged in agriculture and entirely dependent on the traditional mode of farming and has used organic manure like cattle dung, dried leaves-litter and crop residues for enhancing the capacity of soil from time immemorial. Also, studies have shown that the state of Nagaland has negligible use of inorganic supplements in their fields. Thus, Nagaland has a high potential to be converted into an organic state without making any significant shifts in their existing farming practices. Shifting cultivation, locally known as Jhum-kheti, is one of the oldest forms of the agricultural process in practice in Nagaland. However, some studies regard Jhum cultivation as harmful to the environment, but there is a scope to reinvent this farming method and move towards a more sustainable form of agriculture there. This study explores the relation between traditional farming and organic farming and the benefits of state-induced organic farming methods and their effects on the farmers of Nagaland. A survey was carried out in the Mokokchung district of Nagaland to understand the role of farmers in attaining sustainability.


2017 ◽  
pp. 99-125 ◽  
Author(s):  
Dan Lawrence ◽  
Tony J. Wilkinson

This chapter investigates the archaeological landscapes of the frontiers of the Sasanian Empire. Drawing on evidence from current and archived archaeological surveys, in combination with high-resolution remote sensing datasets such as CORONA spy photography, we compare the organisation of settlements and defensive structures of the Sasanian frontier zones in response to a variety of external pressures. These varied from the Roman Empire in the west to less centralised entities, including nomadic groups, in the south-west and north-east. Following a general discussion of the multiple manifestations of Sasanian frontiers drawn from southern Mesopotamia (Iraq), northern Syria and north-eastern Iran, the main focus of the chapter is on the complex frontier landscape of the southern Caucasus, particularly the area of modern Azerbaijan, Georgia and Daghestan. We discuss the role of linear barriers, including the Gorgan Wall in north-eastern Iran and the Ghilghilchay and Derbent Walls in the Caucasus, irrigation systems, and alignments of fortifications and settlements in shaping their local landscapes. By placing the archaeological remains of the Sasanian Empire in a wider context we are able to examine the relationships between military installations, settlement patterns, infrastructure and geographical features such as mountain ranges and rivers. Comparing the different case studies allows us to conclude with some general statements on the nature of Sasanian power in the frontier territories of the empire.


2019 ◽  
Vol 124 (23) ◽  
pp. 13197-13219 ◽  
Author(s):  
U. C. Dumka ◽  
D. G. Kaskaoutis ◽  
D. Francis ◽  
J.‐P. Chaboureau ◽  
A. Rashki ◽  
...  
Keyword(s):  

2021 ◽  
Author(s):  
Amitesh Gupta ◽  
Labani Saha

Abstract The present study has investigated the role of meteorology and air quality for recovering from the COVID-19 pandemic in India. Using Pearson’s correlation method, we look into if there is any significant association occurs between the district level recovery case counts and different remote sensing based environmental variables. Among weather parameters, only precipitation and air temperature found to be significantly correlated with recovery situation. However, all the pollutants’ concentration was negatively correlated with count of recovery cases. It depicts that air quality might has greater importance in recovery from this disease. During late monsoon onwards, recovery rate was getting more than the infections which indicate that lesser temperature and good rainfall could help the air to be freshen. Through air pollution was greater during winter and post monsoon than the summer season in India the higher recovery rate was counted during post-monsoon and winter which suggest that patients may require lesser temperate ambient for better recovery. Spatial patterns also suggest that north-eastern hilly region followed by districts located in the northern mountain had better recovery where the pollutants’ concentration was also quite lower during the study period. Therefore, improving air quality with proper preventive precaution could help to combat the pandemic situation in India.


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