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Indoor simulation test method for measuring paddy field greenhouse gas emission

A simulation test, greenhouse gas technology, applied in the field of rice field greenhouse gas measurement, can solve problems such as affecting accuracy, and achieve the effect of reducing errors, accurate measurement, and easy to achieve

Active Publication Date: 2014-11-05
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Patents related to the monitoring of farmland greenhouse gas emissions include "A Method for Measuring Farmland Greenhouse Gas Emissions" (Application No.: 97111901.5), "Field In-Situ Measurement Method for Direct Emission of Nitrous Oxide Flux from Upland Crops" (Application No.: 01127917.6), these patents all use water seals as a means of sealing for field tests, however, greenhouse gases in farmland can be partially dissolved in water, which greatly affects the accuracy of detection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An indoor simulation test method for measuring rice field greenhouse gas emissions, comprising the steps of:

[0030] (1) Make a large-diameter cylindrical pot for the rice pot test: the cylindrical pot 14 adopts a PVC cylindrical barrel with a thickness of 5 mm, an inner diameter of 400 mm and a height of 400 mm. Evenly open the installation holes for installing the Eh electrode, temperature sensor and moisture sensor respectively.

[0031] (2) Make a gas cylindrical sampling barrel with the same caliber as the cylindrical pot: the gas cylindrical sampling barrel 7 adopts a PVC cylindrical barrel with the same thickness, caliber and material as the cylindrical pot 14, and the height of the PVC cylindrical barrel is 90cm. Three installation holes are evenly opened in the center of the bottom, and the upper sampling device, temperature probe (JM424) 1 and silicone pressure balance tube 5 are respectively installed on the installation holes; the sampling device includes s...

Embodiment 2

[0037] An indoor simulation test method for measuring rice field greenhouse gas emissions, comprising the steps of:

[0038] (1) Make a large-diameter cylindrical pot that can be used for rice potting experiments: the cylindrical pot 14 adopts a PVC cylindrical barrel with a thickness of 10mm, an inner diameter of 500mm and a height of 400mm. Evenly open the installation holes for installing the Eh electrode, temperature sensor and moisture sensor respectively.

[0039] (2) Make a gas cylindrical sampling barrel with the same caliber as the cylindrical pot: the gas cylindrical sampling barrel 7 adopts a PVC cylindrical barrel with the same thickness, caliber and material as the cylindrical pot 14, and the height of the PVC cylindrical barrel is 120cm. Three installation holes are evenly opened in the center of the bottom, and the upper sampling device, temperature probe (JM424) 1 and silicone pressure balance tube 5 are respectively installed on the installation holes; the sam...

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Abstract

The invention discloses an indoor simulation test method for measuring paddy field greenhouse gas emission. The method comprises the steps of: (1) making a large-caliber cylindrical pot for paddy rice pot experiments; (2) making a gas cylindrical sampling bucket consistent with the cylindrical pot in caliber; (3) conducting soil filling; (4) infiltrating soil and transplanting paddy rice; and (5) performing monitoring, collecting gas, and carrying out analytical calculation. The method provided by the invention has the characteristics of easy realization, simple operation, low detection cost, and no interference from field environmental factors, effectively reduces the error of in situ measurement, quantitative, and can quantitative and accurately measure the paddy field greenhouse gas emission flux, thus providing an available test method for studying the influence of various factors on paddy field greenhouse gas emission, and having important significance in guiding agricultural production and improving agricultural environment.

Description

technical field [0001] The invention relates to the technical field of rice field greenhouse gas measurement, in particular to an indoor simulation test method for measuring rice field greenhouse gas emissions. Background technique [0002] Atmospheric CH 4 and N 2 The continuous increase of O concentration leads to the continuous increase of temperature, which is one of the main causes of global warming. Based on their potential greenhouse effect and their current concentration in the atmosphere, they are estimated to contribute as much as 55% and 20% of current global warming, respectively. Rice field ecosystem is the atmospheric greenhouse gas CH 4 is the main source of N 2 An important source of O emissions. Although relevant researches have shown that the greenhouse gas emissions of farmland can be effectively reduced through reasonable water management, selection of superior varieties, application of long-acting or controlled-release fertilizers, improvement of ni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02
Inventor 邹平符建荣叶静俞巧钢姜丽娜马军伟王强孙万春林辉
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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