the relationship between winter temperature rise and soil
DESCRIPTION
niceTRANSCRIPT
The Relationship Between Winter Temperature Rise and Soil Fertility PropertiesXiao guoju, Zhang Qiang, Bi Jiangtao, Zhang Fengju and Luo chengke Bioengineering institute of ningxia University, Yinchuan, ningxia hui Autonomous Region 750021, china. 2institute of Arid Meteorology, china Meteorological Administration, gansu Key Laboratory of Arid climate changes and Disaster Reduction, Lanzhou, gansu Province 730020, china. corresponding author email: [email protected]
Introduction
Climatic Warming Mineralization rate
effect
Microbial decomposer
Soil Fertility
Quality of cultivated land
Soil moisture
Soil salinity and Salinization
Acid soil or Alkaline soil
effect
Growth:winter crops Sprouting:spring crops
Materials and Methods
Survey data in 2009
209600 ha2,096,000,000
49.7% of cultivated land in Ningxia plain
General situation of the test base
Lack of rain
Abundant sunshine Strong evaporation Much of wind and sand
annual average temperature of 9.1 ˚C
annual average rainfall of 185 mm
Materials and MethodsExperimental design
0, 0.5, 1, 1.5, 2 °C
Divided into 15 pots 2m wide and 3m long and 3m for spacing
2 infrared radiators tube 1.2m above the
ground
2m
3m
Materials and MethodsTemperature monitoring
Automatic temperature detector Monitored and recordedTemperature error ±0.1˚C
Take soil sample to measure soil catalase, urease,
phosphatasesoil organic matter(N,P,K), pH,
salt
the soil organic matter was 7.15g/kg total N was 0.15 g/kgtotal P was 0.15 g/kgavailable N was 5.6 g/kg available P was 6.6 g/kg available K was 365.1 g/kgsoil pH was 9.2 total salt was 2.8 g/kg
Materials and MethodsDetermination method
Catalase soil activity : Phosphate activity : disodium phenyl phosphate colorimetry
Urease activity : diffusion layer titration Soil organic matter, available N,P,K, pH and total salt using soil
test kit
Results and AnalysisSoil microbial activity
Results and AnalysisSoil microbial activity
Results and AnalysisSoil microbial activity
Results and AnalysisSoil nutrient
Results and AnalysisSoil nutrient
Results and AnalysisSoil nutrient
Results and AnalysisSoil nutrient
Results and AnalysisSoil pH
Results and AnalysisTotal soil
Conclusions
Total salt 0.39-0.50g/kg
Catalase 0.08-1.20mL/g
Urease 0.004-0.019mg/g
Available N 2.45-4.66g/kg
Phosphatase 0.10-0.25mg/kg Soil pH 0.42-0.67
Available P 2.92-5.74g/kg
Soil organic matter 0.01-0.62g/kg
Temperature 0.5-2.0˚C
cause
Reference • http://www.la-press.com/the-relationship-between-winter-
temperature-rise-and-soil-fertili-article-a2988&sa=U&ved=0ahUKEwiZhMuQlLrJAhXUxY4KHcYiDBMQFggHMAE&client=internal-uds-cse&usg=AFQjCNHtiPpF_pywuo9-8wVRh53oWvJxKg
Thank you for your
attention