As the applications of Earth system models (ESMs) move from general climate projections toward questions of mitigation and adaptation, the inclusion of land management practices in these models becomes crucial.
Land consolidation and land exchange are two important measures that can be used to improve the spatial structure of farm holdings. Unfortunately, land cannot be consolidated and exchanged in all villages of a given area simultaneously, due to economic, technical, and social considerations.
Assessment of specific yields is important for effective groundwater management in semi-arid hardrock aquifers, especially in India with its unsustainable groundwater usage rates. The Dharta watershed in the Udaipur district of Rajasthan is one such hardrock area in India where the groundwater extraction rate is a concern.
Soil quality is one of the most important factors determining the potential for obtaining a high profit from farming. The agricultural quality of soils is described by soil quality classes, and the suitability of soils for growing particular plants or plant communities is described in terms of soil-agricultural complexes.
Although advances in remote sensing have enhanced mapping and monitoring of irrigated areas, producing accurate cropping information through satellite image classification remains elusive due to the complexity of landscapes, changes in reflectance of different land-covers, the remote sensing data selected, and image processing methods used, among others.
This paper provides details of soil and water conservation (SWC) investments in Ethiopia over the past 20 years. It presents SWC practices and estimates the level of SWC investments in different regions. The paper focuses on four principal agricultural regions: Amhara, Oromia, SNNPR and Tigray.
Agricultural GDP in Ethiopia grew at an average 7.3 percent per year between 2001/02 and 2012/13. Most of this dynamism occurred in the highlands, where high population density and land scarcity begs the question of how future agricultural output can be maintained to sustain the previous decade’s momentum.
The main factors that influence the rational land use, conservation and protection of land resources are global ecological and food security, world's population growth, climate change, land acquisition by large world agricultural corporations etc.