Dynamics of Shifting Cultivation in Relation to Slope and Elevation in Parts of Nagaland, India

Nongkynrih, Jenita M.; Pohshna, Chwadaka; Sarma, K. K.

doi:10.18520/cs/v114/i05/1094-1099

Cited by 13 publications

(4 citation statements)

References 3 publications

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“…This research contributes to the ongoing political debate on agricultural intensification in South and Southeast Asia, where population growth and the propagation of settled agriculture through various government programs and initiatives have recently increased land competition, resulting in intensified cultivation cycles and expansion of cultivation to steeper slopes (Castella et al, 2013;Feng et al, 2021;Fox et al, 2014;Lestrelin et al, 2012;Nongkynrih et al, 2018).…”

Section: Implications For Policiesmentioning

confidence: 98%

“…Population growth and political agendas aiming for agricultural intensification through the propagation of settled agriculture have recently increased the pressure on productive land in South and Southeast Asia (Bose, 2019; Bruun et al, 2017; Castella et al, 2013; Fox et al, 2014; Rasul & Thapa, 2003; Ziegler et al, 2012). As a consequence of increasing land competition, shifting cultivation has migrated toward higher altitudes (Adhikary et al, 2019; Feng et al, 2021; Nongkynrih et al, 2018) and fallow cycles have been reduced (Choudhury & Sundriyal, 2003; Lestrelin et al, 2012; Prokop & Poreba, 2012; van Vliet et al, 2012), thus increasing the risk for soil erosion and challenging the sustainability of shifting cultivation systems.…”

Section: Introductionmentioning

confidence: 99%

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Combined effects of climate change and agricultural intensification on soil erosion in uphill shifting cultivation in Northeast India

Schröder,

Rasche,

Jantke

et al. 2023

Land Degrad Dev

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Shifting cultivation will face increasing pressure from erosion‐related land degradation caused by rising cultivation intensities and climate change. However, empirical knowledge about future trends of soil erosion and thus land degradation in shifting cultivation systems is limited. We use the Environmental Policy Integrated Climate (EPIC) model to first explore the combined effects of climate change and agricultural intensification on soil erosion of uphill shifting cultivation systems, using six surveyed soil profiles. We assess interactions between climate change, the length of the fallow period, and slope inclinations for a near (2021–2050) and far (2071–2100) future period, considering three climate scenarios, five climate models, fallow periods between one and 20 years, and slopes between five and 70% steepness. Our results show a significant nonlinear relationship between global warming and erosion. Until the end of the century, erosion is estimated to increase by a factor of 1.2, 2.2, and 3.1 under the SSP126, SSP370, and SSP585 scenarios, respectively, compared with the historical baseline (1985–2014). Combined effects from climate change, fallow length, and slope inclination indicate that steep slopes require longer fallow periods, with an increase of slope from 5% to 10% multiplying the required fallow length by a mean factor of 2.5, and that fallow periods will need to be extended under higher global warming if erosion rates are to remain at current levels. These findings are novel as they link climate change effects on shifting cultivation systems to different slopes and fallow regimes, making an important contribution to understanding future erosion dynamics of traditional smallholder production systems in mountainous terrain, with relevant implications for policies on agricultural intensification.

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Section: Implications For Policiesmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Combined effects of climate change and agricultural intensification on soil erosion in uphill shifting cultivation in Northeast India

Schröder,

Rasche,

Jantke

et al. 2023

Land Degrad Dev

View full text Add to dashboard Cite

show abstract

“…Shifting cultivation is an old technique of cultivation and it is the livelihood of tribal people in the initial period of human settlement. It is known as slash-and-burn cultivationor jhum cultivation (Nongkynrih et al, 2018). People who are involved in shifting cultivation is known as jhumias.…”

Section: Introductionmentioning

confidence: 99%

Poverty Eradication of Jhumias through Rubber Plantation in Tripura: A Case Study

Chaudhury¹,

Sarkar²

2022

EEC

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The study makes an attempt to assess the poverty eradication of Jhumias through the rubber plantation in Tripura. The result indicates that poverty among the jhumias are reduced after rehabilitation through the rubber plantation. The human poverty index and multidimensional poverty index shows that during jhum cultivation respectively, 98.68 per cent and 100 per cent jhumias were fallen under the poverty line. It means poverty were very high during the shifting cultivation., Human poverty index and multidimensional poverty index shows that after rehabilitation of jhumias through the rubber cultivation respectively, 1.68 per cent and 0.6 per cent are under the poverty line.It means poverty among the jhumias are effectively reduced after rubber plantation. Thus the paper suggests that rubber plantation will be a useful strategy for rehabilitation of jhumias and poverty eradication.

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“…The decline in agricultural land was 8.9 km 2 during the last 30 years, due to people abandoning shifting cultivation systems and transforming into sustainable agro-farming after the introduction of the new land use policy (NLUP). Similarly, the study conducted in Nagaland, northeast India, has also observed a decline in agricultural land due to people moving from rural to urban areas for education and better opportunities(Nongkynrih et al, 2018;Ritse et al, 2020). The decrease in forest land observed conversion of forestlands into built-up areas, such as parks, roads, and parking places in Ananthapuramu of Andhra Pradesh (AP) state, South India(Vivekannada et al, 2021…”

mentioning

confidence: 99%

Un-planned Urban Growth Monitoring from 1991 to 2021 of Aizawl City, North-east India by Multi- Temporal Changes and CA-ANN Model

Lawmchullova,

Lalrinawma,

Rinkimi

et al. 2024

Preprint

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Monitoring urban landuse and landcover (LULC) change is a crucial element in developing cities like Aizawl to improve land use planning for future smart cities. The objective of the current study is to analyze the lulc changes of Aizawl city between 1991 and 2021 using multi-date Landsat images and a cellular automata-artificial neural network (CA-ANN) model to predict future scenarios. The present study is highly essential for examining the urban expansion in a vertical hill city and the historical influence of settlement patterns along the edges of hill ranges for proper land use planning. The automatic classification of support vector machines (SVM) in-built at Orfeo tool box (OTB) modules was employed for LULC pattern classification. The land cover change method of the semi-automatic classification plugin (SCP) was used to identify the past LULC using Landsat 4, 5, 7, and 8. The future LULC was stimulated using the machine-learning approaches modules for land use change evaluation (Molusce) plugin in QGIS 2.18. Also, we highlight the factors that influence future LULC changes and the impacts of unplanned hill cities from the results of multi-criteria evaluation (MCE) and analytical hierarchical process (AHP). The study reveals that built-up areas are continuously increasing while open forest, agricultural land, and fallow land are diminishing, even in the projected land use land cover thematic layer in 2031. The built-up area has seen the highest change, from 5.98–25.8% in 1991 to 2021; the rate of increase has been 0.636 km2/yr-1 during the last 30 years. Similarly, dense forest cover also increased from 12.14–18.72% from 1991 to 2021, while other landuse landcover patterns like open forest, fallow land, and agricultural land are declining due to urban expansion. The accuracy level of Kappa coefficients was 97.30% in 1991 and 100% in the years 2001, 2011, and 2021, respectively. This study can help town planners and decision-makers with the protection of greenery and proper town planning.

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Dynamics of Shifting Cultivation in Relation to Slope and Elevation in Parts of Nagaland, India

Cited by 13 publications

References 3 publications

Combined effects of climate change and agricultural intensification on soil erosion in uphill shifting cultivation in Northeast India

Combined effects of climate change and agricultural intensification on soil erosion in uphill shifting cultivation in Northeast India

Poverty Eradication of Jhumias through Rubber Plantation in Tripura: A Case Study

Un-planned Urban Growth Monitoring from 1991 to 2021 of Aizawl City, North-east India by Multi- Temporal Changes and CA-ANN Model

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