Research on Soil Infiltration Law of Different Landues Types in Jinsha River Dry-Hot Valley

2013 ◽  
Vol 726-731 ◽  
pp. 3867-3871 ◽  
Author(s):  
Zhi Qin Liu ◽  
Nan Jun Lang ◽  
Ke Qin Wang
Keyword(s):  
Bulk Density ◽  
Infiltration Rate ◽  
Soil Bulk Density ◽  
Water Infiltration ◽  
Soil Infiltration ◽  
Jinsha River ◽  
Infiltration Process ◽  
The Waste Land ◽  
Waste Land ◽  
Soil Water Infiltration

This article takes four different slope lands as the experimental points in Jinsha River dry-hot volley. The double-rings method is adopted to illustrate the soil moisture infiltration characteristics in four different landuse types. The results show that different landues types have obvious differences in soil infiltration capability among four different patterns of landuse. Arbor forest behaved the best infiltration capability and wasteland the worst; the average infiltration and the steadily infiltration attains 1.67mm/min and 0.5mm/min respectively during the first 120min of soil water infiltration process in arbor forest; the rate of whatever the average infiltration or the steadily infiltration express the same regulation: the arbor forest is a little higher than the shrub land, the grassland, than the waste land; the moisture infiltration rate in different landuse types can all be thoroughly defined through the Horton equation; Water infiltration is affected by the soil bulk density. With the bulk density increasing, the steady infiltration rate decreases. And the two are at an exponential function.

Effect of combined soil water and external load on soil compaction

Soil Research ◽  
2011 ◽  
Vol 49 (2) ◽  
pp. 135 ◽  
Author(s):  
M. A. Hamza ◽  
S. S. Al-Adawi ◽  
K. A. Al-Hinai
Keyword(s):  
Bulk Density ◽  
Soil Water ◽  
Soil Compaction ◽  
External Load ◽  
Field Capacity ◽  
Infiltration Rate ◽  
Soil Bulk Density ◽  
Soil Strength ◽  
Water Infiltration ◽  
Soil Water Infiltration

Reducing soil compaction is now an important issue in agriculture due to intensive use of farm machinery in different farm operations. This experiment was designed to study the influence of combinations of external load and soil water on soil compaction. Four soil water levels were combined with four external loads as follows: soil water—air-dry, 50% of field capacity, field capacity, and saturation; external load using different-sized tractors—no load (0 kg), small tractor (2638 kg), medium tractor (3912 kg), and large tractor (6964 kg). Soil bulk density, soil strength, and soil water infiltration rate were measured at 0–100, 100–200, and 200–300 mm soil depths. The 16 treatments were set up in a randomised block design with three replications. Combined increases in soil water and external load increased soil compaction, as indicated by increasing soil bulk density and soil strength and decreasing soil water infiltration rate. There was no significant interaction between soil water and external load for bulk density at all soil depths, but the interaction was significant for soil strength and infiltration rates at all soil depths. The ratio between the weight of the external load and the surface area of contact between the external load and the ground was important in determining the degree of surface soil compaction. Least compaction was produced by the medium tractor because it had the highest tyre/ground surface area contact. In general, the effects of soil water and external load on increasing soil bulk density and soil strength were greater in the topsoil than the subsoil.

Infiltration Characteristics of Soil Moisture in Liangping County

2014 ◽  
Vol 641-642 ◽  
pp. 183-186
Author(s):  
Shu Yan ◽  
Juan Gao ◽  
Zhong Yuan Zhang ◽  
Feng Lin Zuo ◽  
Wei Hua Zhang
Keyword(s):  
Soil Moisture ◽  
Soil Water ◽  
Infiltration Rate ◽  
Water Shortage ◽  
Water Infiltration ◽  
Soil Infiltration ◽  
Infiltration Model ◽  
Double Ring ◽  
Soil Water Infiltration ◽  
Relationship Of

In order to relieve water shortage, many countries develop water-saving industries and increase water use rate of irrigation. The research on soil water infiltration has important effect on infiltration and runoff, as well as for irrigation. The study carried out in Liangping district of Chongqing by using double ring infiltration method and exploring the reasonable infiltration model in the study area. The relationship of initial soil moisture and irrigation coefficient was studied as well. The results showed that: the Kostiakov empirical formula could simulate the process of soil water infiltration properly. The soil infiltration rate of Liangping is 0.0320cm/min in the selected location.

Improving soil physical fertility and crop yield on a clay soil in Western Australia

2002 ◽  
Vol 53 (5) ◽  
pp. 615 ◽  
Author(s):  
M. A. Hamza ◽  
W. K. Anderson
Keyword(s):  
Bulk Density ◽  
Soil Water ◽  
Western Australia ◽  
Crop Residues ◽  
Infiltration Rate ◽  
Water Infiltration ◽  
Soil Mixing ◽  
Water Stable Aggregates ◽  
Soil Water Infiltration ◽  
Gypsum Application

In the low rainfall area of Western Australia, clay soils with massive soil structure form a major part of the area sown to wheat. Yield increases on such soils have been poor in the last decade compared with those on other soil types. An experiment was conducted over 4 years (1997–2000) using a factorial combination of soil ripping to 0.4 m, application of commercial grade gypsum at 2.5 t/ha, and addition of complete nutrients based on soil test each year. All crop residues were retained after harvest and returned to the soil. The experiment was conducted in a wheat–field pea rotation at Merredin, WA. Soil water infiltration rate, soil strength, bulk density, water-stable aggregates, cation exchange capacity, and wheat yields were measured. Grain yields of wheat and field peas were increased by deep ripping, the addition of gypsum, or the addition of complete nutrients in some years. The main treatment effects on yield were additive, as significant interactions between the treatments on yield were seldom found. However, all the main treatments also significantly improved many of the soil physical properties related to crop growth. In 2000, 4 years after the treatments were applied, soil water infiltration rate was increased by more than 200%, strength of the topsoil decreased by around 1600 kPa, and soil bulk density decreased by 20%. Gypsum application increased water-stable aggregates, but soil mixing caused by deep ripping reduced them. The combination of soil ripping and gypsum application in the presence of complete nutrients and annual return of crop residues to the soil is suggested to improve crop grain yield and soil physical fertility on a range of Western Australian soils.

Observation and modeling on irregular purple soil water infiltration process

2017 ◽  
Vol 14 (6) ◽  
pp. 1076-1085 ◽  
Author(s):  
Dong-bing Cheng ◽  
Lin-yao Dong ◽  
Feng Qian ◽  
Bei Sun
Keyword(s):  
Soil Water ◽  
Water Infiltration ◽  
Purple Soil ◽  
Infiltration Process ◽  
Soil Water Infiltration

The Study of Surfactant Effect on Soil Water Infiltration

2011 ◽  
Vol 361-363 ◽  
pp. 1946-1949
Author(s):  
Yi Fei Li ◽  
Tian Wei Qian ◽  
Li Juan Huo
Keyword(s):  
Hydraulic Conductivity ◽  
Sodium Dodecyl ◽  
Sodium Dodecyl Benzene Sulfonate ◽  
Saturated Hydraulic Conductivity ◽  
Water Infiltration ◽  
Ammonium Bromide ◽  
Soil Infiltration ◽  
Soil Water Infiltration ◽  
Dodecyl Benzene Sulfonate ◽  
Cetyl Trimethyl Ammonium

In this paper,the effect of surfactant to the infiltration and the change of saturated hydraulic conductivity was studied by GUELPH PERMEAMETER. We investigated effects on soil infiltration by three representative surfactants.The results show that the existing of sodium dodecyl benzene sulfonate (SDBS), cetyl trimethyl ammonium bromide bromide (CTAB) and polyxyethylene fatty alcohol (AEO9) would decrease soil saturated hydraulic conductivity.

scholarly journals Patterns of water infiltration and soil degradation over a 120-yr chronosequence from forest to agriculture in western Kenya

2011 ◽  
Vol 8 (4) ◽  
pp. 6993-7015 ◽  
Author(s):  
G. Nyberg ◽  
A. Bargués Tobella ◽  
J. Kinyangi ◽  
U. Ilstedt
Keyword(s):  
Bulk Density ◽  
Soil Degradation ◽  
Agricultural Land ◽  
Infiltration Rate ◽  
Water Infiltration ◽  
Native Forest ◽  
Western Kenya ◽  
Soil C ◽  
Soil C And N ◽  
C And N

Abstract. Soil degradation is commonly reported in the tropics where forest is converted to agriculture. Much of the native forest in the highlands of western Kenya has been converted to agricultural land in order to feed the growing population, and more land is being cleared. In tropical Africa, this land use change results in progressive soil degradation, as the period of cultivation increases. Sites that were converted to agriculture at different times can be evaluated as a chronosequence; this can aid in our understanding of the processes at work, particularly those in the soil. Both levels and variation of infiltration, soil carbon and other parameters are influenced by management within agricultural systems, but they have rarely been well documented in East Africa. We constructed a chronosequence for an area of western Kenya, using two native forest sites and six fields that had been converted to agriculture for varying lengths of time. We assessed changes in infiltrability (the steady-state infiltration rate), soil C and N, bulk density, δ13C, and the proportion of macro- and microaggregates in soil along a 119 yr chronosequence of conversion from natural forest to agriculture. Infiltration, soil C and N, decreased rapidly after conversion, while bulk density increased. Median infiltration rates fell to about 15 % of the initial values in the forest and C and N values dropped to around 60 %, whilst the bulk density increased by 50 %. Despite high spatial variability in infiltrability, these parameters correlated well with time since conversion and with each other. Our results indicate that landscape planners should include wooded elements in the landscape in sufficient quantity to ensure water infiltration at rates that prevent runoff and erosion. This should be the case for restoring degraded landscapes, as well as for the development of new agricultural areas.

Soil Management for Conservation and Sustainable Rice Production in an Irrigated Area of Eastern Nigeria

1996 ◽  
Vol 25 (3) ◽  
pp. 151-156 ◽  
Author(s):  
Charles L.A. Asadu
Keyword(s):  
Organic Matter ◽  
Bulk Density ◽  
Relative Proportion ◽  
Soil Management ◽  
Infiltration Rate ◽  
Water Infiltration ◽  
Negative Effects ◽  
Irrigation Project ◽  
Irrigated Area ◽  
Cropping Season

An comparison of soilmanagement techniques In the different irrigation zones of Lower Anambra Irrigation Project (LAIP) In eastern Nigeria showed that heavy use of machinery led to Increases In bulk density and decreases In field water Infiltration rate. The relative proportion of clay In the irrigated fields Increased as a result of Irrigation, suggesting that mobilized clay from uncemented main and distribution canals Is carried and deposited In the rice fields. Both Irrigation and the use of machinery have had substantial negative effects on soli nutrient levels, and there is a danger of this process continuing. Soli management for sustainable production in the area should centre on applying organic matter in combination with inorganic fertilizers, monitoring the soli properties on yearly basis before the cropping season for fertilizer and lime recommendations, and varying the depth of tillage to Increase or maintain the effective soli depth.

Infiltration Characteristics of Topsoil in Reclamation Farmland Filled with Yellow River Sediment

2014 ◽  
Vol 988 ◽  
pp. 498-501
Author(s):  
Fang Shao ◽  
Dong Wen Liu ◽  
Shu Jiang ◽  
Zhi Yong Qiao ◽  
Shan Lin
Keyword(s):  
River Sediment ◽  
Yellow River ◽  
Infiltration Rate ◽  
Water Infiltration ◽  
First Year ◽  
Infiltration Process ◽  
Important Indicator ◽  
The Third ◽  
Yellow River Sediment ◽  
And Control

Infiltration is an important indicator of water and nutrient holding capacity of soil. Lap infiltration apparatus was used to measure vertical water infiltration process in the third year of Yellow River sediment filling reclamation. Five infiltration models were selected to fit the infiltration characteristic curves, analyzed the infiltration experimental results during 3 years of reclamation. The results showed that, the mean initial infiltration rate and mean stable infiltration rate of filling farmland in the third year were 17.06mm/min and 2.38mm/min, and were 8.81mm/min and 0.99 mm/min higher than that of the first year, 3.58mm/min and 0.39mm/min higher than that of the second year. It indicated that, infiltration rate of filling farmland increased significantly after cultivation due to the farming practices and roots development, and the role of soil microorganisms and small animals. Filling farmland has some self-recovery capabilities. In addition, Kostiakov model has better fitting effect than Mezencev model for both filling farmland and control farmland.

A Forecasting Method of Kostiakov Infiltration Model Parameters Based on Back-Propagation Model

2012 ◽  
Vol 610-613 ◽  
pp. 2899-2903
Author(s):  
Chong Wen Cao ◽  
Gui Sheng Fan
Keyword(s):  
Back Propagation ◽  
Influence Factors ◽  
Propagation Model ◽  
Water Infiltration ◽  
Physical Parameters ◽  
Model Parameters ◽  
Soil Infiltration ◽  
Infiltration Process ◽  
Infiltration Model ◽  
Bp Model

Based on test data of field soil water infiltration, Back-propagation (BP) model of predicting Kostiakov infiltration model parameters was established after analyzing the primary influence factors of water infiltration model parameters. The results indicate that BP model can reflect the non-linear relationship between the model parameters and the physical parameters of the soil; BP model is high accuracy for prediction soil infiltration model parameters. It can be referred as a new method to predict soil infiltration process using soil physical parameters.

Soil Infiltration Characteristics under Different Land at Western Yunnan Plateau

2014 ◽  
Vol 884-885 ◽  
pp. 694-697 ◽  
Author(s):  
Dan Hui Qi ◽  
Zhi Qin Liu
Keyword(s):  
Land Use ◽  
Infiltration Rate ◽  
Water Infiltration ◽  
Forest Land ◽  
Dry Land ◽  
Grass Land ◽  
Yunnan Plateau ◽  
Soil Water Infiltration ◽  
Land Use Types ◽  
Western Yunnan

On the basis of soil physical properties of three different land use types at western Yunnan plateau, the soil moisture infiltration characteristics in these three land use types were studied with the advanced double-rings method. The results showed that there were differences on soil bulk density, soil porosity, initial soil water infiltration rate and stable soil water infiltration rate. The bulk density of dry land is higher than that of forest land and grass land, which results in the physical properties and structure of forest land soil are better than those of non-forest land. For the initial infiltration, its order from high to low is forest land, dry land and grass land. Among different stands, it is showed that from the average infiltration rate and steady infiltration rate, its order from high to low was forest land, grass land and dry land.

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