Soil type
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The aims of this research are to find out spatial and temporal infiltration characteristics in two forest types. Basing on the result of this research, the researchers would find out the correlation between Acacia and Cinnamon tree with infiltration rate of soil and the effects of two kinds of trees in process of forming overland flow and erosion.
14p viamancio 03-06-2024 0 0 Download
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Ebook "Agronomic handbook: Management of crops, soils, and their fertility" covers both major agronomic fields. Containing essential data and information on the culture of the world's major agronomic grain, oil, fiber, and sugar crops grown on a wide range of soil types, Agronomic Handbook: Management of Crops, Soils, and Their Fertility serves as a practical reference on the management of crops and soils from planting to harvest.
482p tracanhphuonghoa1007 22-04-2024 4 2 Download
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This study aims to evaluate the effect of fire on soil properties at Zone A5, Tram Chim National Park, Tam Nong district, Dong Thap province. Findings indicated that soil type was acid sulfate, soil structures were clay, clay-silt and silt-clay. pH was low while moisture was high. Electrical conductivity and bulk density were in the tolerance range for the Eleocharis community.
9p viohoyo 25-04-2024 5 2 Download
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In the research "Utilization of borehole data for correlation system of strata: A case study of Hanoi, Vietnam" the actual data of the investigation where the system was put into practice in order to estimate the subsurface structure of an area of approximately 7 km in length and 7 km in width in the city of Hanoi, using 275 borehole data, will be provided. In the stratigraphic comparison, the names of the Vietnamese soil types correspond to the Japanese soil types.
8p tukhauquantuong1011 22-04-2024 4 2 Download
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Part 1 of ebook "Pile design and construction rules of thumb (Second edition)" includes the following main contents: Chapter 1 - Site investigation and soil conditions; Chapter 2 - Geophysical methods; Chapter 3 - Groundwater; Chapter 4 - Foundation types; Chapter 5 - Pile types; Chapter 6 - Selection of piles; Chapter 7 - Static and dynamic analysis; Chapter 8 - Design of driven piles; Chapter 9 - Design of bored piles;...
154p khuynhlinhnguyet1009 05-04-2024 3 1 Download
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This study shows the results of landslide susceptibility mapping for the southwest region of Quang Nam province using the Weights of Evidence (WoE) model. The input data consists of a landslide inventory and ten influencing factors, i.e., geology, distance to fault, elevation, relief amplitude, slope, aspect, rainfall, soil type, land use, and distance to road.
15p viellison 28-03-2024 3 1 Download
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By analyzing some soil chemical properties such as: SOC content, macronutrients, ion mobilized Fe, this paper will focus on: (1) description of soil chemical properties at different soil horizons under two forest types; (2) analyzing differences of those soil properties and (3) analyzing the correlation between investigated soil parameters in Kon Ka Kinh National Park, Central Highlands, Vietnam.
10p visergey 14-03-2024 2 1 Download
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This practice covers the structural design of corrugated steel pipe and pipe-arches, ribbed and composite ribbed steel pipe, ribbed pipe with metallic-coated inserts, closed rib steel pipe, composite corrugated steel pipe, and steel structural plate pipe, pipe-arches, and underpasses for use as storm sewers and sanitary sewers, and other buried applications. Ribbed and composite ribbed steel pipe, ribbed pipe with metallic-coated inserts, closed rib steel pipe, and composite corrugated steel pipe shall be of helical fabrication having a continuous lockseam.
23p hth_hn_vn 10-12-2023 7 4 Download
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Part 1 book "Freshwater aquaculture - A functional approach" includes content: Quaculture - types, soil and water quality for aquaculture, diversification and alternatives of carp culture.
258p oursky07 23-10-2023 5 2 Download
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The paper generalizes one practical tool for analyzing the structural dynamics for the high-speed railway bridge based on Cast3M open-source. Compared with the classical approach with the analytical formulation, KD-Railway developed by the finite element method allows defining the structure with complex geometry and considering a different type of structure (truss, cable, hybrid composite) or the structure-soil interaction.
11p visharma 20-10-2023 9 4 Download
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Ebook Facts on file science experiments: Weather and climate experiments - Part 1 includes contents: Chapter 1: the heat-retaining properties of water and soil, chapter 2: student-constructed weather stations, chapter 3: how are snowflakes formed?, chapter 4: modeling el niño, chapter 5: factors that affect evaporative rates, chapter 6: sources of carbon dioxide in the air, chapter 7: levels of ultraviolet radiation in local ecosystems, chapter 8: variables that affect cloud formation, chapter 9: what type of hair makes the most accurate hygrometer?.
67p haojiubujain03 09-08-2023 8 4 Download
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Suffusion is one of the four types of internal erosion and accounts for 46% of erosion phenomena in earth dams. Suffusion is an erosion of fine particles inside the soil structure that move out of the voids between coarse particles caused by permeability flow. Identification of internal erosion is necessary to mitigate the loss of humans and property as underground erosion occurs.
6p viwarmachine 01-07-2023 4 3 Download
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The paper aims to present a numerical case study on the use of micropile elements for enhancing the performance of the boundary footing of a renovated building in terms of bearing capacity and stability. Moreover, the effect of cohesionless soil types on the bearing capacity of boundary foundations was presented.
10p vicedric 08-02-2023 9 3 Download
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Coastal dunes are characterised by plant species adapted to harsh conditions. Salinity and other factors (soil pH, nutrients, and climate events) vary along the landward gradient. The current study investigated the effects of environmental factors on the occurrence and composition of coastal dune plants. Ellenberg ecological indicator values (EIVs), species tolerance values (TVs), and species niche models for salinity, nutrient availability, and soil reaction were determined.
15p lyhuyenthu 31-01-2023 9 3 Download
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Understanding the processes of displacement and redistribution of soil particles caused by different erosion types is considered an efficient sediment management tool in various scales from the field plot to the watershed. The rainfed agriculture practices on high gradient slopes are one of the main sources of accelerated soil erosion due to the disturbance of soil structure by tillage processes.
14p lyhuyenthu 31-01-2023 5 2 Download
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Different types of land use, practices and management can alter biogeochemical cycling of a piece of land by the effect it produces on soil properties. The conversion of forest land to agricultural land and wastelands to forest land use have been in practice from primordial days due to land hunger and reclamation.
7p viporsche 28-10-2022 5 2 Download
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The thesis "Strain Localization and Member Ductility" primarily intends to provide new insights into the mechanism of localized plastic strain, also known as necking, in different types of metallic materials, including mild steel Q235, high strength low alloy steel HSLA350, and aluminum alloy AL6061.
354p runordie3 06-07-2022 7 1 Download
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Quang Nam province located in the middle of Vietnam, has suffered an increasing drought for many years, this threatens the crop production. Drought severity seems to be added in by land use change from forest to horticultural land but the interactions among drought, land use change and soil biological properties remain elusive in this area.
14p vimelindagates 18-07-2022 6 2 Download
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Satellite images have a remarkable ability to help researchers map the distribution and detect the nature of the soil exposed on the earth's surface. The remote-sensing mapping of clayey soils makes it possible to determine their shrinking-swelling potentials.
7p vinikolatesla 31-03-2022 8 2 Download
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The results showed that SOM content was higher in horizon A, whereas mineral matrix elements Al, Fe, and Mg contents were higher in horizon B. Ca and P contents gradually decreased with soil depth due to the influence of fertilizer. Three types of trace element concentration profiles were identified: (1) decrease with depth for Cd and Hg
7p thebadguys 15-01-2022 7 0 Download