A method to increase organic carbon fixation in halophytic herbaceous plants in arid desert regions

A herbal, organic carbon technology

Active Publication Date: 2017-12-15
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, there is no method to increase organic carbon by using nitrate nitrogen at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In areas where the halophytic herbaceous chrysanthemum plants grow densely:

[0019] a. At the end of spring, the surface temperature is maintained at 20°C, and excavation is carried out in areas where the saline herb Hexichrysanthemum grows densely, and the excavation is every 5m 2 Draw a ditch with a width of 0.5m and a depth of 3cm;

[0020] b. During the growing season of the saline herb Hexichrysanthemum plant, dig the strip twice, apply 1cm of nitrate nitrogen at a nitrogen level of 10mmol / L in the strip of the dug strip, water it, and then carry out follow-up management according to the conventional method, The application of nitrate nitrogen promotes plant root growth, increases the root-to-shoot ratio, and improves the long-term storage of underground organic carbon.

Embodiment 2

[0022] In areas where the saline herb silique plants grow densely:

[0023] a. At the end of spring, the surface temperature is maintained at 20°C, and drilling is carried out in areas where the halophytic herbaceous silique plant grows densely. Use a Luoyang shovel for drilling every 5m 2 Drill 5 points, the size of each point is 8mm, and the depth is 5cm;

[0024] b. During the growing season of the halophytic herb silique plant, carry out 2 times of drilling, apply 2 cm of nitrate nitrogen in the hole of the drilling by 12 mmol / L nitrogen level, water, and then carry out follow-up according to the conventional method Management, through the application of nitrate nitrogen to promote plant root growth, increase root-to-shoot ratio, and improve long-term storage of belowground organic carbon.

Embodiment 3

[0026] In areas of dense growth of halophyte saponins:

[0027] a. At the end of spring, the herbaceous awning plant grows to 10cm, and the strips are dug, and the strips are every 5m 2 Draw a ditch with a width of 1m and a depth of 10cm;

[0028] b. During the growing season of the saline herbaceous sand canopy plant, carry out 3 times of digging, apply 3 cm of nitrate nitrogen in the band of digging at a nitrogen level of 15 mmol / L, water, and then carry out follow-up management according to conventional methods, The application of nitrate nitrogen promotes plant root growth, increases the root-to-shoot ratio, and improves the long-term storage of underground organic carbon.

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PUM

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Abstract

The invention relates to a method for increasing saline herbaceous plant organic carbon fixation in the arid desert region. The method includes that performing digging or drilling in plant growing areas of saline herbaceous hexinia chrysanthemum, ceratocarpus arenarius, agriophllum squarrosum or camel thorns when land surface temperature is sustained to be 20DEG C at the end of spring or herbaceous vegetation grows to 10cm; performing digging or drilling in growing season, and applying nitrate nitrogen to a dug belt or a drilled hole. Underground lateral roots of saline herbaceous plants are promoted to grow and develop by the application of nitrate nitrogen nutrition, and the plants are promoted to distribute more biomass generated through photosynthesis to the underground to promote increasing of root shoot ratio and underground root growth so as to achieve the purpose of increasing long-term storage of underground organic carbon of the plants to compensate decreasing of ecosystem carbon fixation capacity due to declining of the plants in the arid desert region.

Description

technical field [0001] The invention relates to a method for fixing organic carbon of halophytes in arid desert areas, in particular to a method for increasing organic carbon fixation of halophytic herbaceous plants in arid desert areas. Background technique [0002] At present, the area of ​​arid and semi-arid regions in the world has exceeded 1 / 3 of the total land surface area of ​​the earth. Due to harsh climatic conditions and increasing population pressure, problems such as desertification in these areas are becoming more and more serious. Land desertification affects about 3.6 billion hectares of the world 2 soil of. my country's desertified land accounts for about 27.2% of the country's land area, and it is one of the countries most seriously affected by desertification in the world. The special ecological conditions and natural environment in the arid desert area lead to generally low soil organic matter content, phosphorus and nitrogen deficiency, high soil salin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01B79/02
CPCA01B79/02A01G22/00
Inventor 黄湘马建新李卫红陈亚宁
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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