نتایج جستجو برای: soil water storage

تعداد نتایج: 858449  

2013
Min Sun ZhiQiang Gao WeiFeng Zhao LianFeng Deng Yan Deng HongMei Zhao AiXia Ren Gang Li ZhenPing Yang

To provide a new way to increase water storage and retention of dryland wheat, a field study was conducted at Wenxi experimental site of Shanxi Agricultural University. The effect of subsoiling in fallow period on soil water storage, accumulation of proline, and formation of grain protein after anthesis were determined. Our results showed that subsoiling in fallow period could increase water st...

2004
Luis C. Timm Julio C. M. de Oliveira Tania T. Tominaga Fabio A. M. Cássaro Klaus Reichardt Osny O. S. Bacchi

The quantification of soil water balance components was conducted in a sugarcane (Saccharum officinarum L.) field differently managed, as well as a qualitative analysis of the methodologies used for their estimation. The study was conducted in randomized block experiment with four replicates and three treatments: bare soil, mulched soil using trash left on the soil surface after harvest, and so...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2012
Juana Paul Moiwo Wenxi Lu Fulu Tao

Water storage depletion is a worsening hydrological problem that limits agricultural production in especially arid/semi-arid regions across the globe. Quantifying water storage dynamics is critical for developing water resources management strategies that are sustainable and protective of the environment. This study uses GRACE (Gravity Recovery and Climate Experiment), GLDAS (Global Land Data A...

2006
GUO-YUE NIU ZONG-LIANG YANG

The presence of ice in soil dramatically alters soil hydrologic and thermal properties. Despite this important role, many recent studies show that explicitly including the hydrologic effects of soil ice in land surface models degrades the simulation of runoff in cold regions. This paper addresses this dilemma by employing the Community Land Model version 2.0 (CLM2.0) developed at the National C...

2013
Suk Young Hong Budiman Minasny Kyung Hwa Han Yihyun Kim Kyungdo Lee

The knowledge on the spatial distribution of soil available water capacity at a regional or national extent is essential, as soil water capacity is a component of the water and energy balances in the terrestrial ecosystem. It controls the evapotranspiration rate, and has a major impact on climate. This paper demonstrates a protocol for mapping soil available water capacity in South Korea at a f...

2013
Krishna Gopal Mandal Dilip Kumar Kundu Ravender Singh Ashwani Kumar Rajalaxmi Rout Jyotiprakash Padhi Pradipta Majhi Dillip Kumar Sahoo

Effects of cropping practices on soil properties viz. particle size distribution, pH, bulk density (BD), field capacity (FC, -33 kPa), permanent wilting point (PWP, -1500 kPa), available water capacity (AWC) and soil organic carbon (SOC) were assessed. The pedotransfer functions (PTFs) were developed for saturated hydraulic conductivity (Ks), water retention at FC and PWP of soils for different...

2004
Sharad K. Jain Vijay P. Singh

Many studies of water flow and solute transport in the vadose zone require estimates of the unsaturated soil hydraulic properties, including the soil water retention curve ~WRC! describing the relationship between soil suction and water content. An artificial neural network ~ANN! approach was developed to describe the WRC using observed data from several soils. The ANN approach was found to pro...

2010

Evaluating how autotrophic (SRA), heterotrophic (SRH) and total soil respiration (SRTOT) respond differently to changes of environmental factors is critical to get an understanding of ecosystem carbon (C) cycling and its feedback processes to climate change. A field experiment was conducted to examine the responses of SRA and SRH to water and nitrogen (N) addition in a temperate steppe in north...

ژورنال: آبخیزداری ایران 2019

Rainfall harvesting and storage in soil depth through micro catchment contribute to curtail water deficiency of plants. The objective of this research that was conducted in Kaboodeh-Olya village in Kermanshah province, Iran, was to compare the effects of three different micro catchment systems on soil moisture storage including flat, crescent and rhombus shaped. The experimental research was pe...

Journal: :به زراعی کشاورزی 0
عبدالحمید محبی مؤسسه تحقیقات خرما و میوه های گرمسیری کشور، اهواز، کیلومتر 10 جاده ساحلی اهواز خرمشهر، روبروی روستای ام التمیر، ص پ: 16-61355

increasing the efficiency of water use is one of the main topics of sustainable agriculture in arid and semi-arid. the use of some materials such as superabsorbent polymers increase water storage in the soil and thus reduce the water use. increase water storage in the soil to reduce the effects of drought and saline soil. in order to evaluate the effect of super absorbent polymer on survival an...

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