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A method for measuring the carbon sink capacity of mangroves

A method of determination, mangrove technology, applied in the direction of testing plants/trees, measuring devices, instruments, etc.

Active Publication Date: 2018-02-13
INST OF GEOCHEM CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current research on the carbon sink capacity of mangroves focuses on the dynamic changes of vegetation biomass and the dynamics of litter decomposition. So far, the two have not been considered in the same system to quantify the contribution of vegetation to soil organic carbon. Comprehensive Contribution to Research

Method used

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  • A method for measuring the carbon sink capacity of mangroves
  • A method for measuring the carbon sink capacity of mangroves
  • A method for measuring the carbon sink capacity of mangroves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The implementation site is located in the Quanzhou Bay Mangrove Nature Reserve in Fujian Province. The calculation was carried out on June 23, 2013, and the carbon sink capacity of the tung flower tree in the 9-year-old mangrove forest in the upstream forest was measured.

[0022] (1) Collect soil samples and plant samples. Select tung tree plants with uniform growth in the upper reaches of the Luoyang River in the target area, and collect the lower surface soil Squeeze the package with a sealed bag; at the same time, collect the lower surface soil of the bare beach land closest to it. Then, 5 tung trees were randomly selected near the sampling point, and 10 to 15 mature leaves of each plant were collected from the top of the crown (sun leaves) and the lower part of the crown (shady leaves), mixed, squeezed and packaged in sealed bags.

[0023] (2) Determination of δ of soil samples and plant leaves 13 c. Take the collected samples back to the laboratory in time, ai...

Embodiment 2

[0033] The implementation site is located in the Quanzhou Bay Mangrove Nature Reserve in Fujian Province. The calculation was carried out on April 29, 2012, and the carbon sink capacity of the candela and tung flower trees planted in the upstream in 2008 was measured.

[0034] (1) Collect soil samples and plant samples. Select the tung tree and candela plants with uniform growth in the upper reaches of the Luoyang River in the target area, and collect the lower surface soil Squeeze the package with a sealed bag; at the same time, collect the lower surface soil of the bare beach land closest to it. Then, 5 tung trees and candela were randomly selected near the sampling point, and 10-15 mature leaves of each plant were collected from the top of the canopy (sun leaves) and the lower part of the canopy (shady leaves). Mixed, sealed bag squeeze pack.

[0035] (2) Determination of δ of soil samples and plant leaves 13 c. Take the collected samples back to the laboratory in time...

Embodiment 3

[0046] The implementation site is located in the Quanzhou Bay Mangrove Nature Reserve in Fujian Province. The calculation was carried out on April 29, 2012, and the carbon sink capacity of the candela and tung flower trees planted in 2008 in the middle reaches was measured.

[0047] (1) Collect soil samples and plant samples. Select the tung tree and candela plants with uniform growth in the middle reaches of the Luoyang River in the target area, and collect the lower surface soil respectively Squeeze the package with a sealed bag; at the same time, collect the lower surface soil of the bare beach land closest to it. Then, 5 tung trees and candela were randomly selected near the sampling point, and 10-15 mature leaves of each plant were collected from the top of the canopy (sun leaves) and the lower part of the canopy (shady leaves). Mixed, sealed bag squeeze pack.

[0048] (2) Determination of δ of soil samples and plant leaves 13 c. Take the collected samples back to th...

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Abstract

The invention discloses a method for determining carbon sinking capacity of a mangrove forest. The method comprises the following steps: collecting surface soil of the lower covert of the mangrove forest and bare land nearest to the mangrove forest in an area to be measured and mangrove plant leaves; determining a ratio of organic carbon in the soil and stable carbon isotopes (delta <13>C) of the plant leaves; taking the bare land as the background value, and calculating a ratio of mangrove-sourced carbon in the soil organic carbon in the area to be detected and in the artificial mangrove area with known ages of the mangrove according to a relevant formula; obtaining a multiplier index of the organic carbon of the mangrove plants according to the age of mangrove forest, establishing an index multiplier equation, obtaining a mangrove forest organic carbon multiplier rate model by virtue of derivation, and calculating the carbon sinking capacity of the target mangrove forest at a specific age of the forest according to the content of the organic carbon in the surface soil under the lower convert of the target mangrove species. The method is simple, easy and free from damaging the forest; and the obtained result has a prediction function, and the carbon sinking capacity of different species with different ages in different environments can be accurately determined, so that comparative data can be provided to the research of the global variation.

Description

Technical field: [0001] The invention belongs to the field of forestry technology and ecological protection, in particular to a method for measuring and calculating the carbon sink capacity of coastal and estuary mangrove forests. Background technique: [0002] Mangroves are woody plant communities that grow in the intertidal zones of tropical and subtropical coasts or estuaries. Mangroves are the last "ecological barrier" for the transition from terrestrial ecosystems to marine ecosystems. They have extremely important ecological functions for both land and ocean. They are known as "sea forests", "kidneys of the earth" and " Natural farms". Mangrove wetlands not only provide marine animals with rich bait and a good growth and development environment, but also become an important guarantee for the development of offshore fisheries and aquaculture, thereby providing humans with resources such as medicines, food, feed and wood, and have the ability to purify The functions of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/00
CPCG01N33/0098
Inventor 吴沿友王宗林张开艳姚凯王瑞饶森陆叶赵丽华李环刘丛强
Owner INST OF GEOCHEM CHINESE ACADEMY OF SCI
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