scholarly journals Creating patches of native flowers facilitates crop pollination in large agricultural fields: mango as a case study

2012 ◽  
Vol 49 (6) ◽  
pp. 1373-1383 ◽  
Author(s):  
Luísa G. Carvalheiro ◽  
Colleen L. Seymour ◽  
Susan W. Nicolson ◽  
Ruan Veldtman
Keyword(s):  
Agricultural Fields ◽  
Crop Pollination

scholarly journals The economics of growing shrub willow as a bioenergy buffer on agricultural fields: A case study in the Midwest Corn Belt

2016 ◽  
Vol 10 (6) ◽  
pp. 776-789 ◽  
Author(s):  
Herbert Ssegane ◽  
Colleen Zumpf ◽  
M. Cristina Negri ◽  
Patty Campbell ◽  
Justin P. Heavey ◽  
...  
Keyword(s):  
Corn Belt ◽  
Agricultural Fields ◽  
Shrub Willow

scholarly journals MONITORING THE RATE OF EXPANSION OF AGRICULTURAL FIELDS IN MWEKERA FOREST RESERVE USING REMOTE SENSING AND GIS

2019 ◽  
Vol XLII-3/W6 ◽  
pp. 377-380
Author(s):  
K. Kanja ◽  
M. Mwemba ◽  
K. Malunga
Keyword(s):  
Remote Sensing ◽  
Accuracy Assessment ◽  
Remote Sensing And Gis ◽  
Agricultural Fields ◽  
Urban Migration ◽  
Landsat Images ◽  
Forest Reserve ◽  
Job Opportunities ◽  
Analysis Technique

<p><strong>Abstract.</strong> Rapid population growth and rural-urban migration amidst limited job opportunities lead to conversion of land from forests into agriculture and other land uses. In this study, Zambia’s Mwekera national forest reserve was used as a case study to assess the rate of expansion of agricultural fields using remote sensing and GIS. Iterative Self-Organizing Data Analysis Technique (ISODATA) as well as maximum likelihood supervised classification on four Landsat images as well as accuracy assessment of the classifications was performed. Over the period under observation, results indicate annual percentage changes to be &amp;minus;0.03, &amp;minus;0.49 and 1.26 for agriculture, forests and settlement respectively indicating a higher conversion of forests into human settlements and agriculture.</p>

scholarly journals Will the Illinois chorus frog (Pseudacris streckeri illinoensis) survive in Arkansas? A case study of a secretive species In need of protection

2018 ◽  
Author(s):  
Malcolm McCallum ◽  
Stanley E. Trauth
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Agricultural Fields ◽  
Pesticide Use ◽  
Range Contraction ◽  
Surface Water Hydrology ◽  
Best Management ◽  
New Localities ◽  
Chorus Frog

AbstractThe range of the Illinois chorus frog (Pseudacris streckeri illinoensis) in Arkansas is restricted to the eastern quarter of Clay County. Nearly 100% of this species’ native sand-prairie habitat has been converted to agricultural fields. The original range of the Illinois chorus frog encompassed at least 9,982 ha. Although two new localities were identified in 2002, the current range is only 4,399 ha in 2002. This represents a 56% range contraction since 1992. Calling was heard in only 44.5% of its original range. This species may be experiencing a severe range contraction. Decay models predict the extirpation of the Illinois chorus frog in Arkansas within 17.5 to 101 yr. Suggested factors contributing to this range contraction may include drought, pesticide use, changes in surface water hydrology, U.S. E.P.A. Best management practices, and this species’ limited ability to recolonize extirpated sites.

scholarly journals Beetles and Meteorological Conditions: A Case Study

2021 ◽  
Author(s):  
Marcos Paulo Gomes Gonçalves
Keyword(s):  
Positive Association ◽  
Meteorological Conditions ◽  
Negative Association ◽  
Meteorological Variables ◽  
Agricultural Fields ◽  
Influence Of Temperature ◽  
The Relationship ◽  
The City ◽  
Animal Grazing

The meteorological factors study in the beetle population dynamics, as well as its association with vegetation, is of fundamental importance for understanding the variation that occurs in its population. Thus, it was reported the influence of temperature, humidity, insolation and precipitation on the beetles in general and it was presented a case study that examined the relationship between time and population fluctuation of curculionids in Mata de Cocal and an area used for crop rotation and animal grazing, in the city of Teresina, Brazil, from August 2011 to July 2012. It was verified that beetles populations certain are governed and conditioned by meteorological variables to a greater or lesser extent depending on the characteristics of the community itself and the biotic and abiotic environmental factors of the area where they live: the temperature that changes the its metabolic rate, the insolation and humidity that can affect its fertility and longevity can be cited as examples. From the case presented, It was found that the Curculionidae community has a positive association with precipitation and humidity and a negative association with insolation and temperature, being that in native forests curculionids are not as dependent on meteorological variables as in agricultural fields.

Estimating Drainage Periods for Agricultural Fields from Measured Data: Data-Mining Methodology and a Case Study (La JailliÈRe, France)

2015 ◽  
Vol 64 (5) ◽  
pp. 703-716 ◽  
Author(s):  
Aneta Trajanov ◽  
Vladimir Kuzmanovski ◽  
Florence Leprince ◽  
Benoit Real ◽  
Alain Dutertre ◽  
...  
Keyword(s):  
Data Mining ◽  
Measured Data ◽  
Agricultural Fields

scholarly journals Classification of small agricultural fields using combined Landsat-8 and RapidEye imagery: case study of northern Serbia

2014 ◽  
Vol 8 (1) ◽  
pp. 083512 ◽  
Author(s):  
Vladimir Crnojevic ◽  
Predrag Lugonja ◽  
Branko Brkljac ◽  
Borislav Brunet
Keyword(s):  
Agricultural Fields ◽  
Landsat 8

scholarly journals Microplastics in Agricultural Soils: A Case Study in Cultivation of Watermelons and Canning Tomatoes

Water ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2168
Author(s):  
Ekavi A. Isari ◽  
Dimitrios Papaioannou ◽  
Ioannis K. Kalavrouziotis ◽  
Hrissi K. Karapanagioti
Keyword(s):  
Ftir Spectroscopy ◽  
Agricultural Soils ◽  
Industrial Area ◽  
Soil Samples ◽  
Agricultural Fields ◽  
Agricultural Activities ◽  
Sem Images ◽  
Mulch Film ◽  
Contamination Of Soils

Thirty soil samples were collected from fields that have been used for cultivating watermelons and canning tomatoes for over 10 years. The microplastics (MPs) within these samples were separated with a density floatation method and the use of sieves and filters. The microplastics found were black and originated from the black agricultural mulch film (BMF) used in these cultivations. ATR-FTIR spectroscopy revealed that these microplastics are of the same material as the virgin BMF and as a virgin polyethylene film used as blank. SEM images showed that used BMF and MPs found in soil were oxidized by their exposure to sunlight and create fibrous edges that lead to the creation of smaller size MPs. The number of MPs found in fields with watermelon (301 ± 140 items kg−1) were more than four times higher than in fields with canning tomatoes (69 ± 38 items kg−1) due to the double planting each year and to the second planting last year being closer to the sampling episode. All the sample sites were collected from agricultural fields away from the industrial area; therefore, these results prove that agricultural activities might have caused contamination of soils with MPs. This is corroborated even more by the fact that no MPs were found in five extra samples that were taken from uncultivated areas as blanks.

scholarly journals Role of the Public Engagement in the Reconstruction and Revival of the Distressed Urban Textures: Case Study of District 4 in Isfahan, Iran

2015 ◽  
Vol 9 (12) ◽  
pp. 172
Author(s):  
Mehdi Momeni
Keyword(s):  
Social Context ◽  
Public Engagement ◽  
Research Method ◽  
Urban Life ◽  
Agricultural Fields ◽  
The Public ◽  
The People ◽  
Life Problems

<p class="zhengwen"><span lang="EN-GB">Old textures suffer deficiencies in terms of answering the needs of the today’s life due to old age and the resultant weariness and destruction and even the lack of urban facilities and equipment. When the urban life in part of a city becomes stagnant and no efforts are made to regain its boom. The urban texture in that area will be exposed to wearing out. The goal of this study is to review the existing drawbacks and bottlenecks in the process of the revival of the distressed texture of one of the neighborhoods located in District 4, Isfahan, called Kerdabad. The research method is applied in nature and follows a descriptive analytic approach. The findings of the research covers issues such as incompatible applications, resulting in the fact that 80 percent of respondents attribute their dissatisfaction from the environmental conditions of the neighborhood to workshop areas and agricultural fields in the margin of their neighborhood which in turn has resulted in slum life problems in the neighborhood and formation of an inconsistent social context in which 63 percent of the people are dissatisfied of these conditions. While 70 percent of the respondents express their willingness to refurbish their houses, only 73 percent of the respondents attribute proximity to their workplace as the main reason why they prefer to stay in the neighborhood and 89 inhabitants are not well satisfied with the urban services delivered. </span></p>

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