scholarly journals Barriers to and determinants of the choice of crop management strategies to combat climate change in Dejen District, Nile Basin of Ethiopia

2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Zerihun Yohannes Amare ◽  
Johnson O. Ayoade ◽  
Ibidun O. Adelekan ◽  
Menberu Teshome Zeleke
Keyword(s):  
Climate Change ◽  
Management Strategies ◽  
Crop Management ◽  
Nile Basin ◽  
Combat Climate Change

Assessment of crop-management strategies to improve soybean resilience to climate change in Southern Brazil

2018 ◽  
Vol 69 (2) ◽  
pp. 154 ◽  
Author(s):  
Rafael Battisti ◽  
Paulo C. Sentelhas ◽  
Phillip S. Parker ◽  
Claas Nendel ◽  
Gil M. De S. Câmara ◽  
...  
Keyword(s):  
Climate Change ◽  
Management Strategies ◽  
Crop Management ◽  
Sowing Date ◽  
Future Climate ◽  
Planting Density ◽  
Climate Scenarios ◽  
Southern Brazil ◽  
Maturity Group ◽  
Supplementary Irrigation

Management is the most important handle to improve crop yield and resilience under climate change. The aim of this study was to evaluate how irrigation, sowing date, cultivar maturity group and planting density can contribute for increasing the resilience of soybean (Glycine max (L.) Merr.) under future climate in southern Brazil. Five sites were selected to represent the range of Brazilian production systems typical for soybean cultivation. Yields were obtained from a crop-model ensemble (CROPGRO, APSIM and MONICA). Three climate scenarios were evaluated: baseline (1961–2014), and two future climate scenarios for the mid-century (2041–70) with low (+2.2°C, A1BLs) and high (+3.2°C, A1BHs) deltas for air temperature and with atmospheric [CO2] of 600 ppm. Supplementary irrigation resulted in higher and more stable yields, with gains in relation to a rainfed crop of 543, 719, 758 kg ha–1, respectively, for baseline, A1BLs and A1BHs. For sowing date, the tendencies were similar between climate scenarios, with higher yields when soybean was sown on 15 October for each simulated growing season. Cultivar maturity group 7.8 and a plant density of 50 plants m−2 resulted in higher yields in all climate scenarios. The best crop-management strategies showed similar tendency for all climate scenarios in Southern Brazil.

scholarly journals Use of agrobiodiversity and crop management practices for climate change adaptation in high hill agriculture of Nepal

2018 ◽  
Vol 18 ◽  
pp. 6-14
Author(s):  
Yuga N. Ghimire ◽  
Ram B. Rana ◽  
Shanti Ale ◽  
Indra Poudel ◽  
Bir B. Tamang
Keyword(s):  
Climate Change ◽  
Management Practices ◽  
Management Strategies ◽  
Crop Management ◽  
External Support ◽  
Extreme Weather Events ◽  
Cropping Pattern ◽  
Crop Varieties ◽  
Adaptation Practices ◽  
Hill Agriculture

This paper highlights the effects of climate related hazards in crops and the existing adaptation practices in the high hills of Nepal. First, interaction meeting held in Kathmandu decided to select three districts: Humla, Kaski and Solukhumbhu as the representative districts. Second, stakeholder interaction meetings held in respective districts selected three villages: Chhipra from Humla district, Lumle from Kaski district and Takashindu from Solukhumbhu district. Information was acquired using Focus Group Discussion with the use of diversity analysis tools viz. four-cell analysis, noting traits of local crop genetic resources, and matrix ranking of crop varieties. The study found that climate hazards were increasing in recent years affecting farming adversely. Existing adaptation practices included change of crops and cropping pattern and use of alternate crop management strategies. Tourism, low social value attached to traditional crops, inadequate research, and food subsidy and other forms of external support have been identified as the threat to agrobiodiversity conservation in high hills of Nepal. Promotion of agro-tourism, identifying crop varieties tolerant to extreme weather events and their promotion through technology development and value addition have been suggested to combat climate change effects in high hill agriculture in the country.

scholarly journals Land Degradation and Climate Change Resilient Soil and Crop Management Strategies for Maize Production in Coastal Western Africa

2017 ◽  
Vol 10 (06) ◽  
pp. 24-30
Author(s):  
Jean Mianikpo Sogbedji ◽  
Kodjovi Sotomè Detchinli ◽  
Mihikouwè Mazinagou ◽  
Ruth Atchoglo ◽  
Komi Agbémébia Bona
Keyword(s):  
Climate Change ◽  
Land Degradation ◽  
Management Strategies ◽  
Crop Management ◽  
Maize Production ◽  
Western Africa

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.

scholarly journals Predicting Impacts of Climate Change on Northward Range Expansion of Invasive Weeds in South Korea

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1604
Author(s):  
Sun Hee Hong ◽  
Yong Ho Lee ◽  
Gaeun Lee ◽  
Do-Hun Lee ◽  
Pradeep Adhikari
Keyword(s):  
Climate Change ◽  
South Korea ◽  
Habitat Suitability ◽  
Management Strategies ◽  
Southern Region ◽  
Suitable Habitat ◽  
Invasive Weeds ◽  
Northern Regions ◽  
Suitable Habitats ◽  
Control And Management

Predicting the distribution of invasive weeds under climate change is important for the early identification of areas that are susceptible to invasion and for the adoption of the best preventive measures. Here, we predicted the habitat suitability of 16 invasive weeds in response to climate change and land cover changes in South Korea using a maximum entropy modeling approach. Based on the predictions of the model, climate change is likely to increase habitat suitability. Currently, the area of moderately suitable and highly suitable habitats is estimated to be 8877.46 km2, and 990.29 km2, respectively, and these areas are expected to increase up to 496.52% by 2050 and 1439.65% by 2070 under the representative concentration pathways 4.5 scenario across the country. Although habitat suitability was estimated to be highest in the southern regions (<36° latitude), the central and northern regions are also predicted to have substantial increases in suitable habitat areas. Our study revealed that climate change would exacerbate the threat of northward weed invasions by shifting the climatic barriers of invasive weeds from the southern region. Thus, it is essential to initiate control and management strategies in the southern region to prevent further invasions into new areas.

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