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Method for increasing saline herbaceous plant organic carbon fixation in arid desert region

A herbal plant and organic carbon technology, which is applied in the fields of botanical equipment and methods, land preparation methods, plant cultivation, etc., can solve the problems of nitrate nitrogen increasing organic carbon and so on.

Active Publication Date: 2015-09-02
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 Hexi chrysanthemum plants are densely grown:

[0019] a. At the end of spring, the surface temperature is maintained at 20℃, and the digging zone is every 5m in the area where the halophyte Hexi chrysanthemum grows densely. 2 Make a trench with a width of 0.5m and a depth of 3cm;

[0020] b. During the growth season of the halophyte Hexi chrysanthemum plant, dig the belt twice, apply 1cm of nitrate nitrogen at a nitrogen level of 10mmol / L in the belt of the digging belt, water it, and perform subsequent management according to conventional methods. The application of nitrate nitrogen promotes the growth of plant roots, increases the root to shoot ratio, and improves the long-term storage of underground organic carbon.

Embodiment 2

[0022] In areas where the halophyte ceratophyllum plants grow densely:

[0023] a. At the end of spring, the surface temperature is maintained at 20℃. Drill holes in areas where the halophyte ceratophyllum plants are densely grown. Use a Luoyang shovel every 5m 2 Drill 5 points, each point is 8mm in size and 5cm in depth;

[0024] b. During the growth season of the halophyte ceratophyllum plant, drill 2 times, apply nitrate nitrogen 2cm at a nitrogen level of 12mmol / L in the drilled hole, water it, and then proceed with the follow-up according to conventional methods Management, by applying nitrate nitrogen to promote plant root growth, increase root to shoot ratio, and improve long-term storage of underground organic carbon.

Embodiment 3

[0026] In areas where the halophytic saxophone plants grow densely:

[0027] a. At the end of spring, the herbaceous sarcophagus plants grow to 10cm, and the digging zone is carried out every 5m. 2 Make a trench with a width of 1m and a depth of 10cm;

[0028] b. During the growth season of the halophyte saporus plant, dig the belt 3 times, apply nitrate nitrogen 3cm at a nitrogen level of 15mmol / L in the belt of the digging belt, water it, and then perform follow-up management according to conventional methods. The application of nitrate nitrogen promotes the growth of plant roots, increases the root to shoot ratio, and improves the long-term storage of underground organic carbon.

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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 fixing of halophytes 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 of the earth. Due to severe climatic conditions and increasing population pressure, problems such as desertification in these areas have become more and more serious. Land desertification affects about 3.6 billion ha globally 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 arid desert areas generally result in low soil organic matter content, phosphorus and nitrogen deficiency, high soil salinity, and soil formation with primitive natur...

Claims

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Application Information

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Patent Type & Authority Applications(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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