scholarly journals Climate Change and Land Use Change in the Eastern Coastal Belt of Bangladesh, Elucidated by Analyzing Rice Production Area in the Past and Future

2014 ◽  
Vol 8 ◽  
pp. 83-92 ◽  
Author(s):  
Md Shafiul Alam
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Food Security ◽  
Land Use Change ◽  
Agricultural Land ◽  
Rice Production ◽  
Agricultural Land Use ◽  
Salinity Intrusion ◽  
The Past ◽  
Production Area

Climate change is an important issue now-a-days. Global warming i.e. climate change causes sea level rise and that affect the coastal agricultural areas of Bangladesh. The net-cropped area of eastern coastal zone in Bangladesh has been decreasing over the years due to various purposes and the most common one is the land inundation and salinity intrusion by tidal water. The main aims of the study is to assess the change in climatic conditions particularly temperature, rainfall and agricultural land use change in the past and future. Past rainfall, temperature and salinity data have been used to assess the climatic and salinity conditions of the area under investigation. Normalized difference vegetation Index (NDVI) and False Color Composite (FCC) of digital Land sat images have been used to identify land use pattern and Boro rice coverage area. During last 31 years (1978 -2009) 31% rice production land has converted to shrimp culture and salt farming. Salinity intrusion is one of the major causes of agricultural land use change. Salinity level has increased dramatically in dry season during last decade due to increase of temperature, low rainfall pattern, high evaporation rate and low water discharge to the river systems. Future landuse has been projected for 2039 by Markov Model. Result shows that rice production area will decrease rapidly due to salinity intrusion as well as climate change which may threat for food security of Bangladesh. Hereafter, the Government of Bangladesh, national and international institutions will have to work together for minimizing the effect of climate change for food security. DOI: http://dx.doi.org/10.3329/jles.v8i0.20151 J. Life Earth Sci., Vol. 8: 83-91, 2013

Agricultural land use change and associated driving forces over the past 180 years in two municipalities of the Brazilian Cerrado

GeoJournal ◽  
2018 ◽  
Vol 84 (3) ◽  
pp. 555-570 ◽  
Author(s):  
Murilo Rodrigues de Arruda ◽  
Maja Slingerland ◽  
José Zilton Lopes Santos ◽  
Ken E. Giller
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Agricultural Land ◽  
Driving Forces ◽  
Agricultural Land Use ◽  
Brazilian Cerrado ◽  
The Past

scholarly journals From jhum to broom: Agricultural land-use change and food security implications on the Meghalaya Plateau, India

AMBIO ◽  
2015 ◽  
Vol 45 (1) ◽  
pp. 63-77 ◽  
Author(s):  
Rabi Narayan Behera ◽  
Debendra Kumar Nayak ◽  
Peter Andersen ◽  
Inger Elisabeth Måren
Keyword(s):  
Land Use ◽  
Food Security ◽  
Land Use Change ◽  
Agricultural Land ◽  
Agricultural Land Use

scholarly journals Assessment of impacts of agricultural and climate change scenarios on watershed water quantity and quality, and crop production

2016 ◽  
Author(s):  
Awoke D. Teshager ◽  
Philip W. Gassman ◽  
Justin T. Schoof ◽  
Silvia Secchi
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Land Use ◽  
Land Use Change ◽  
21St Century ◽  
Agricultural Land ◽  
Agricultural Landscapes ◽  
Water Quantity ◽  
Agricultural Land Use ◽  
Water Quantity And Quality

Abstract. Modeling impacts of agricultural scenarios and climate change on surface water quantity and quality provides useful information for planning effective water, environmental, and land use policies. Despite the significant impacts of agriculture on water quantity and quality, limited literature exists that describes the combined impacts of agricultural land use change and climate change on future bioenergy crop yields and watershed hydrology. In this study, the Soil and Water Assessment Tool (SWAT) eco-hydrological model was used to model the combined impacts of five agricultural land use change scenarios and three downscaled climate pathways (representative concentration pathways, RCPs) that were created from an ensemble of eight atmosphere-ocean general circulation models (AOGCMs). These scenarios were implemented in a well calibrated SWAT model for the Raccoon River watershed (RRW) located in western Iowa. The scenarios were executed for the historical baseline, early-century, mid-century, and late-century periods. The results indicate that historical and more corn intensive agricultural scenarios with higher CO2 emissions consistently result in more water in the streams and greater water quality problems, especially late in the 21st century. Planting more switchgrass, on the other hand, results in less water in the streams and water quality improvements relative to the baseline. For all given agricultural landscapes simulated, all flow, sediment and nutrient outputs increase from early-to-late century periods for the RCP4.5 and RCP8.5 climate scenarios. We also find that corn and switchgrass yields are negatively impacted under RCP4.5 and RCP8.5 scenarios in the mid and late 21st century.

Remote sensing for estimating agricultural land use change as the impact of climate change

2016 ◽  
Author(s):  
Y. Pramudya ◽  
Komariah ◽  
W. S. Dewi ◽  
Sumani ◽  
Mujiyo ◽  
...  
Keyword(s):  
Climate Change ◽  
Remote Sensing ◽  
Land Use ◽  
Land Use Change ◽  
Agricultural Land ◽  
Agricultural Land Use ◽  
Impact Of Climate Change ◽  
The Impact

scholarly journals Assessment of impacts of agricultural and climate change scenarios on watershed water quantity and quality, and crop production

2016 ◽  
Vol 20 (8) ◽  
pp. 3325-3342 ◽  
Author(s):  
Awoke D. Teshager ◽  
Philip W. Gassman ◽  
Justin T. Schoof ◽  
Silvia Secchi
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Land Use ◽  
Land Use Change ◽  
21St Century ◽  
Agricultural Land ◽  
Agricultural Landscapes ◽  
Water Quantity ◽  
Agricultural Land Use ◽  
Water Quantity And Quality

Abstract. Modeling impacts of agricultural scenarios and climate change on surface water quantity and quality provides useful information for planning effective water, environmental and land use policies. Despite the significant impacts of agriculture on water quantity and quality, limited literature exists that describes the combined impacts of agricultural land use change and climate change on future bioenergy crop yields and watershed hydrology. In this study, the soil and water assessment tool (SWAT) eco-hydrological model was used to model the combined impacts of five agricultural land use change scenarios and three downscaled climate pathways (representative concentration pathways, RCPs) that were created from an ensemble of eight atmosphere–ocean general circulation models (AOGCMs). These scenarios were implemented in a well-calibrated SWAT model for the intensively farmed and tiled Raccoon River watershed (RRW) located in western Iowa. The scenarios were executed for the historical baseline, early century, mid-century and late century periods. The results indicate that historical and more corn intensive agricultural scenarios with higher CO2 emissions consistently result in more water in the streams and greater water quality problems, especially late in the 21st century. Planting more switchgrass, on the other hand, results in less water in the streams and water quality improvements relative to the baseline. For all given agricultural landscapes simulated, all flow, sediment and nutrient outputs increase from early-to-late century periods for the RCP4.5 and RCP8.5 climate scenarios. We also find that corn and switchgrass yields are negatively impacted under RCP4.5 and RCP8.5 scenarios in the mid- and late 21st century.

scholarly journals KEBIJAKAN REFORMA AGRARIA TERHADAP LAHAN PERTANIAN DI KABUPATEN TULUNGAGUNG

2020 ◽  
Vol 6 (1) ◽  
pp. 91
Author(s):  
Siti Chadijah ◽  
Dwi Kusumo Wardhani ◽  
Ali Imron
Keyword(s):  
Land Use ◽  
Food Security ◽  
Land Use Change ◽  
Agricultural Land ◽  
Agrarian Reform ◽  
Agricultural Land Use ◽  
Sustainable Food ◽  
Land Protection ◽  
Laws And Regulations

The phenomenon of agricultural land use change one of which occurred in Tulungagung Regency, East Java. Agricultural land in Tulungagung Regency continues to experience shrinking, triggering fears of instability in the area's food security. Thus this research aims to answer and describe how: (1) Implementation of policies on agricultural land in Tulungagung Regency and (2) Factors that influence the implementation of agrarian reform in the Tulungagung Regency. The analysis begins dissecting the laws and regulations relating to Agrarian and Agrarian Reform Policies, among others: UUPA, Perpres No. 86 of 2018 on Agrarian Reform, and is associated with regulations related to the control and use of agricultural land, among others; Law No. 41 of 2009 concerning Protection of Sustainable Agricultural Land. Furthermore, reviewing the regulations at the Tulungagung District Land Office related to the Agrarian Reform on the Control and Use of Agricultural Land and Regional Regulations in force, then photographing how they are applied in the field so as to draw conclusions from the factors that influence the implementation of Agrarian Reform, one of which is a change use of agricultural land to become non-agricultural. The results of the study concluded that a strategic step is needed in the form of food agricultural land protection in Tulungagung Regency by regulating and immediately establishing it as a Sustainable Food Agriculture Area.

scholarly journals Changes in Coastal Agricultural Land Use in Response to Climate Change: An Assessment Using Satellite Remote Sensing and Household Survey Data in Tien Hai District, Thai Binh Province, Vietnam

Land ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 627
Author(s):  
Duong H. Nong ◽  
An T. Ngo ◽  
Hoa P. T. Nguyen ◽  
Thuy T. Nguyen ◽  
Lan T. Nguyen ◽  
...  
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Agricultural Land ◽  
Land Use Changes ◽  
Management Strategies ◽  
Household Survey ◽  
Extreme Weather Events ◽  
Agricultural Land Use ◽  
Landsat 8 ◽  
Land Uses

We analyzed the agricultural land-use changes in the coastal areas of Tien Hai district, Thai Binh province, in 2005, 2010, 2015, and 2020, using Landsat 5 and Landsat 8 data. We used the object-oriented classification method with the maximum likelihood algorithm to classify six types of land uses. The series of land-use maps we produced had an overall accuracy of more than 80%. We then conducted a spatial analysis of the 5-year land-use change using ArcGIS software. In addition, we surveyed 150 farm households using a structured questionnaire regarding the impacts of climate change on agricultural productivity and land uses, as well as farmers’ adaptation and responses. The results showed that from 2005 to 2020, cropland decreased, while aquaculture land and forest land increased. We observed that the most remarkable decreases were in the area of rice (485.58 ha), the area of perennial crops (109.7 ha), and the area of non-agricultural land (747.35 ha). The area of land used for aquaculture and forest increased by 566.88 ha and 772.60 ha, respectively. We found that the manifestations of climate change, such as extreme weather events, saltwater intrusion, drought, and floods, have had a profound impact on agricultural production and land uses in the district, especially for annual crops and aquaculture. The results provide useful information for state authorities to design land-management strategies and solutions that are economic and effective in adapting to climate change.

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