A research on the fallow land of Akesu area based on GIS and RS

Author(s):  
Lijun Zuo ◽  
Zengxiang Zhang ◽  
Fuxing Zhang
Keyword(s):  

Farmers in dry regions of India have a high tendency for leaving their land fallow. To decipher this phenomenon, the study was carried out in the Tumkur district of the central dry zone of Karnataka. Results from the study revealed a positive relationship between the size of land holdings and land fallow. The major reason stated by farmers for leaving their fallow land was the scarcity of rainfall or irrigation, and poor land fertility status. The Tobit regression model was fitted to study the determinants of the decision of farmers to keep the arable land fallow, where, dependent variable considered was the share of fallow land in the total size of landholding of farm households. It was found that the availability of water for irrigation and family labour has a negative relationship with fallow land. Other factors determining the extent of fallow land were the distance of land from residences, poor land fertility status and availability of credit.


2019 ◽  
Vol 4 (5) ◽  
pp. 311-312
Author(s):  
F. E. Abu- Agwa ◽  
M. S. E. Amira ◽  
M. H. Bahnassy ◽  
W. M. Nada
Keyword(s):  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yannick Mugumaarhahama ◽  
Rodrigue Balthazar Basengere Ayagirwe ◽  
Valence Bwana Mutwedu ◽  
Nadège Cizungu Cirezi ◽  
Dieudonné Shukuru Wasso ◽  
...  

AbstractIn South-Kivu province, cattle farming is an integral component of farmers’ livelihoods and one of the few income-generating opportunities for smallholders. However, very few studies have been conducted to characterize smallholders’ cattle production systems. This study documents cattle production systems to better understand their current situation, constraints they face and opportunities they offer. For that purpose, an investigation was conducted based on a structured survey questionnaire and participatory interviews with 863 farmers in South-Kivu province. Collected data were analysed using factorial analysis of mixed data and clustering techniques. The results revealed three types of smallholder cattle farms differing mainly in their herds’ sizes and landholding. The first category is the most common and includes farmers raising small herds (6.3 ± 6.7 cattle) of local breeds in herding system (in this work, “herding system” refers to a rearing system for which the farmer drives and stays with his animals on pastures and fallow land during the day) and grazing fodder in community pastures, fallow lands and roadside grasses, while land constitutes a scarce resource. In the second category, some farmers have small tracts of land (< 5 ha) and others have large tracts (> 5 ha), but all have medium-size herds (45.1 ± 19.4 cattle) made up of local breeds, which they rear in herding system. They also exploit community pastures, fallow land and roadside fodder for animal feeding. The third and last category includes farmers with large cattle herds (78.1 ± 28.1 cattle) of local, crossbred and exotic breeds raised free range in the fenced paddocks on vast areas of land (> 5 ha) found in high-altitude regions. However, while being different according to the above-considered characteristics, the three categories of cattle farming remain extensive pastoral farms dominated by male farmers. Agriculture and/or animal husbandry are their main source of income while their livestock are also composed of goats and poultry, beside cattle. Still, the three farming groups require more inputs and improvement strategies for increased productivity in the challenging environment characterized by low land accessibility and high demand for milk and meat. Fodder cultivation and crop-livestock integration through agro-ecological systems as well as access to credit and extension services are the proposed strategies for the improvement of this economic sector.


2013 ◽  
Vol 726-731 ◽  
pp. 3792-3798
Author(s):  
Wen Ju Zhao ◽  
Wei Sun ◽  
Zong Li Li ◽  
Yan Wei Fan ◽  
Jian Shu Song ◽  
...  

SWAT (Soil and Water Assessment Tool) model is one of distributed hydrological model, based on spatial data offered by GIS and RS. This article mainly introduces the SWAT model principle, structure, and it is the application of stream flow simulation in China and other countries, then points out the deficiency existing in the process of model research. In order to service in water resources management work better, experts and scholars further research the rate constant and uncertainty of the simplification of the model parameters, and the combination of RS and GIS to use, and hydrological scale problems.


Author(s):  
Anna Grontkowska

Changes in land management methods constantly occur, caused by natural, economic, social and demographic conditions. This paper aims to determine changes in set-asides and fallow land in Poland, in the years 1990-2020, and determine the spatial diversity of this phenomenon. The study was based on available statistical data for the studied period. The study shows that, before 2004, the share of fallow land was much more significant. After Poland acceded to the European Union, land left without cultivation decreased considerably with a simultaneous increase in the area of land used for agriculture. The results show that the share and number of hectares of fallow area decreased. The provinces of Kujawsko-Pomorskie, Opole and Wielkopolskie were characterized by the lowest percentage of fallow land in the agricultural area of the province. In contrast, the provinces of Podkarpackie, Lubuskie, Świętokrzyskie, Małopolskie, Śląskie and Warmińsko-Mazurskie had the highest percentage of fallow land.


2012 ◽  
Vol 47 (1) ◽  
pp. 147-159
Author(s):  
Jan Kennis ◽  
Crespin Laurent ◽  
Nicaise Drazo Amundala ◽  
Akaibe Migimiru Dudu ◽  
Herwig Leirs

1935 ◽  
Vol 25 (3) ◽  
pp. 326-343 ◽  
Author(s):  
W. S. Rogers

1. A soil moisture meter which gives direct and continuous measurement of the soil moisture content is described. The instrument consists of a special porous pot filled with water, connected by a tube to a mercury manometer. The pot is buried in the soil, whose capillary pull causes the mercury to rise. The height to which the mercury rises depends on the amount of moisture in the soil, and also on the size of soil particles and the degree of compactness of the soil. (The last two factors remain constant for an instrument in one position.)2. To read actual moisture percentage each instrument has to be calibrated for the soil in which it is placed. Once this is done, all sampling and weighing is eliminated.


2019 ◽  
Vol 30 (3) ◽  
pp. 15-22
Author(s):  
Katarzyna Szyszko-Podgórska

Abstract The purpose of the work was to identify the occurrence of butterflies depending on landform uses and human influence on the population domination structure. The research was conducted in the ‘Krzywda’ field-and-forest Site occupying 172 ha. The area consists of the land leaving in fallow, meadows and wasteland including about 68 ha of swamps that are strongly eutrophic due to human economic activity. The area is subjected to artificial succession inhibition processes in the form of mowing and cutting of trees and shrubs. 32 species of butterflies were recorded during the research, that is, 20% of all species within this group occurring in Poland. The research has approved the great spatial and quantitative diversification of the occurring area of butterflies depending on the form of the land uses. The greatest number of species and their greatest populations were found in the land laying in fallow without the removal of the biomass. The least number of species and their specimens were collected in the unmown laying fallow land. Lycaena virgaureae was the most numerous species collected. The correct domination structure characterized by a small number of numerous species and a large number of species consisting of a low number of specimens. Processes observed in the studied Site subjected to various types of land use influence the occurrence diversity of this group of insects.


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