scholarly journals Shifting cultivation induced Burn area Dynamics using Ensemble Approach in Northeast India

2021 ◽  
pp. 100183
Author(s):  
Pulakesh Das ◽  
Mukunda Dev Behera ◽  
Saroj Kanta Barik ◽  
Sujoy Mudi ◽  
Buddolla Jagadish ◽  
...  
Land ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 133 ◽  
Author(s):  
Kurien ◽  
Lele ◽  
Nagendra

Attempts to study shifting cultivation landscapes are fundamentally impeded by the difficulty in mapping and distinguishing shifting cultivation, settled farms and forests. There are foundational challenges in defining shifting cultivation and its constituent land-covers and land-uses, conceptualizing a suitable mapping framework, and identifying consequent methodological specifications. Our objective is to present a rigorous methodological framework and mapping protocol, couple it with extensive fieldwork and use them to undertake a two-season Landsat image analysis to map the forest-agriculture frontier of West Garo Hills district, Meghalaya, in Northeast India. We achieve an overall accuracy of ~80% and find that shifting cultivation is the most extensive land-use, followed by tree plantations and old-growth forest confined to only a few locations. We have also found that commercial plantation extent is positively correlated with shortened fallow periods and high land-use intensities. Our findings are in sharp contrast to various official reports and studies, including from the Forest Survey of India, the Wastelands Atlas of India and state government statistics that show the landscape as primarily forested with only small fractions under shifting cultivation, a consequence of the lack of clear definitions and poor understanding of what constitutes shifting cultivation and forest. Our results call for an attentive revision of India’s official land-use mapping protocols, and have wider significance for remote sensing-based mapping in other shifting cultivation landscapes.


2019 ◽  
Author(s):  
S.P.M. Bos ◽  
T. Cornioley ◽  
A. Dray ◽  
P.O. Waeber ◽  
C.A. Garcia

Abstract Understanding landscape change starts with understanding what motivates farmers to transition away from one system, shifting cultivation, into another, like plantation crops, given that they often have limited labour and money available. In this study we explored the resource allocation strategies of the farmers of the Karbi tribe in Northeast India, who practise a traditional shifting cultivation system called jhum. Through Companion Modelling, a participatory modelling framework, we developed a model of the local farming system in the form of a role playing game. Within this environment local jhum farmers participated in a simulation that covered 18 years of farming, while also allowing us to analyse the impacts of their decisions together. In the game, farmers allocated labour and cash to meet household needs, while also investing in new opportunities like bamboo, rubber and tea, or the chance to improve their living standards. When given new opportunities, the farmers were eager to embrace those options where investment costs, especially monetary investments, are low. Returns on these investments were not automatically re-invested in further long-term, more expensive and promising opportunities. Instead, most of the money is spend on improving the household living standards, and especially on the education of the next generation. The landscape changed profoundly as a result of the farmer strategies. Natural ecological succession was replaced by an improved fallow of marketable bamboo species. Plantations of tea and rubber became more prevalent as time progressed. However, old practises that ensure food security are not yet given up.


2019 ◽  
Vol 13 ◽  
pp. 90-95
Author(s):  
Ratna Bhuyan

Historically, shifting cultivation has been traced back to the neolithic period. It has undergone transitions from being a subsistence agriculture to small surpluses. Despite the global changes intruding into the socio-economic sphere of the tribal communities across Northeastern region of India, shifting cultivation continues to play an important role in providing livelihoods and food security to the rural tribal households. It seems that shifting cultivation is closely tied to the cultural identity of the tribal people. Therefore, its importance lies beyond mere economic concerns. Though with government interventions and under innovative shifting cultivation, the farmers in the region have switched to newer methods of cultivation, shifting cultivation continues parallel to sedentary cultivation accommodating at the same time the value system and needs of the tribal society. Concurrently, the Jhumias – shifting cultivators are constantly incorporating new measures into shifting cultivation to make it ecologically less destructive. Amidst changing perceptions on shifting cultivation practices, the paper tries to analyse the continuance of shifting cultivation in the region.


CATENA ◽  
2015 ◽  
Vol 135 ◽  
pp. 321-327 ◽  
Author(s):  
Dibyendu Sarkar ◽  
Ch. Bungbungcha Meitei ◽  
Lohit K. Baishya ◽  
Anup Das ◽  
Subhadip Ghosh ◽  
...  

Heliyon ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. e06834
Author(s):  
Wapongnungsang ◽  
EtsoshanYinga Ovung ◽  
Keshav Kumar Upadhyay ◽  
S.K. Tripathi

2013 ◽  
Vol 2 (1) ◽  
pp. 91-104 ◽  
Author(s):  
Pramod Kumar Yadav ◽  
Kiranmay Sarma ◽  
Ashish Kumar Mishra

Due to shifting cultivation, the overall structure and composition of ecological condition is affected, hence landscape study becomes important for maintaining ecological diversity and appropriate scientific planning of any area. Garo hills region of northeast India is suffering from Geomorphological risk like sheet erosion, landslide etc. due to the age old tradition of shifting cultivation in the fragile hill slopes aided by other anthropogenic activities. The present study was conducted to examine the role of shifting cultivation for deforestation and degradation with variant of slope and elevation to relate vegetation cover with slope and elevation in the Garo Hills landscape of Meghalaya using temporal remote sensing data of 1991, 2001 and 2010. It revealed that there is decrease in dense forest and open forest during the 1st decade while areas under dense forest and non-forest increased in 2nd decade. This increased forest area is confined in the high slopes, which are inaccessible. The study shows increase in shifting cultivation near-about double fold in high slope and more than a double fold in the high altitudinal area in last decade, which is negative sign in terms of Geomorphological protection. International Journal of Environment, Volume-2, Issue-1, Sep-Nov 2013, Pages 91-104 DOI: http://dx.doi.org/10.3126/ije.v2i1.9212


Author(s):  
Arun Jyoti Nath ◽  
U. K. Sahoo ◽  
Krishna Giri ◽  
G. W. Sileshi ◽  
A. K. Das

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