نتایج جستجو برای: soil map
تعداد نتایج: 371954 فیلتر نتایج به سال:
For the precaution against physical soil degradation in managed soils, accurate planning data about anthropogenic impacts and for policy making applicable indicators to describe the driving force and state are required. To assess the potential erosion risk, accurate information is available, but to assess the actual erosion risk it is necessary to regard current land-use and cultivation data fo...
Mozambique includes 10 agroecological zones with distinct climate and cropping systems (INIA, 1980). Agricultural production is more intensively practiced in the central and northern parts of the country where agroecological conditions are favorable. As a result of 16 years of civil war and low funding for agricultural research few assessments of soil nutrient status have been possible. To asse...
In the recent years, agricultural soils have received more chemicals in various forms for higher yields. This may result in the accumulation of metals in soils which subsequently may be transferred into the agricultural crops. In the present investigation, nickel content of 58 composite soil samples and also agricultural crops, is studied. Ni in samples of soil and agricultural products were ex...
abstract- the information on the spatial properties of soil is vital to improve soil management and to increase the crop productivity. geostatistical analysis technique is one of the most important methods for determining the spatial properties of soil. the aim of this study was to investigate spatial variability of soil chemical and physical attributes for field management in eastern shiraz, i...
Quantifying global patterns of terrestrial nitrogen (N) cycling is central to predicting future patterns of primary productivity, carbon sequestration, nutrient fluxes to aquatic systems, and climate forcing. With limited direct measures of soil N cycling at the global scale, syntheses of the (15)N:(14)N ratio of soil organic matter across climate gradients provide key insights into understandi...
Land evaluation procedure given by FAO for soil site suitability for various land utilization types for rainfed agriculture has been used to assess the land suitability for khasi mandarin orange and pineapple in East Khasi Hills District of Meghalaya. The database on soil and land use/land cover was generated from IRS-P6 remote sensing satellite data, soil survey and laboratory analysis of soil...
This paper presents a new approach to predict soil properties and quantify uncertainty in the derived soil property maps over large areas using sparse and ad-hoc samples. According to the soil-landscape model, each soil sample contains corresponding relationships between soil and environment conditions. Under the assumption that the more similar the environment conditions between two locations ...
This paper aims to investigate the potential of using soil-landscape pattern extracted from a soil map to predict soil distribution at unvisited location. Recent machine learning advances used in previous studies showed that the knowledge embeddedwithin soil units delineated by experts can be retrieved and explicitly formulated from environmental data layers However, the extent to which the mod...
India, being an agricultural country analysis of soil texture and water resource plays a vital role in increasing the productivity of crops. The area of study is Vellore district in Tamil Nadu where agriculture is the main occupation. Though it is a fact, most of the land remains uncultivated due to the lack of knowledge of soil and water wealth. This paper proposes a method to analyze the suit...
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