CN105319322A - Detection method for forest carbon sink - Google Patents
Detection method for forest carbon sink Download PDFInfo
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- CN105319322A CN105319322A CN201410348570.XA CN201410348570A CN105319322A CN 105319322 A CN105319322 A CN 105319322A CN 201410348570 A CN201410348570 A CN 201410348570A CN 105319322 A CN105319322 A CN 105319322A
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Abstract
A provided metering method for forest carbon sink comprises the following steps: steps 1, staining cell nucleus; step 2, calculating cell wall percentage; step 3, calculating tree species volume; and step 4, calculating forest carbon sink, respectively calculating the carbon sink of each tree species according to the following formula: C[i]=0.5*10<3>*r[i]*V[i], wherein C[i] is the carbon sink of one tree species, r[i] is the tree species cell wall percentage of the tree species, V[i] is the volume of the tree species, and summing the carbon sink of all tree species, so as to calculate the carbon sink of the forest, in other words, C=C[1]+C[2]+...+C[i], wherein C is the forest carbon sink, and n is the tree species sum. The metering method for the forest carbon sink is capable of relatively accurately metering the forest carbon sink, difference of carbon sink capability of different tree species at different areas is fully considered, the forest carbon sink is dynamically metered, and disadvantages of static metering is overcome.
Description
Technical field
The present invention relates to a kind of detection method of Forestry Carbon Mitigation amount.
Background technology
The greenhouse effect that the accumulation of carbon dioxide isothermal chamber gas causes and the Global climate change caused are the great environmental problem of facing mankind.Forest, as the main body of terrestrial ecosystems, plays very important effect in global carbon, therefore detects Forestry Carbon Mitigation ability significant for research Global climate change.Adopt different carbon remittance detection methods, the result obtained also is not quite similar.The detection method of current Forestry Carbon Mitigation mainly contains biomass method, accumulation method and the biological inventory method etc. based on biomass method, accumulation method.
Biomass method is current most widely used method, and the method calculates forest biomass, is multiplied by biomass-organic C storage conversion factor, obtains forest carbon storage.Current biomass-organic C storage conversion factor, generally between 0.45 ~ 0.55, selects the occurrence of conversion factor by rule of thumb, does not specify accurately accordingly.So adopt biomass method to carry out detection to Forestry Carbon Mitigation will inevitably there is very large error.
Accumulation method carries out measured sample to the chief species of forest, calculates the average size of forest chief species, then obtain biomass according to total accumulation of forest, then be multiplied by the carbon capacity that biomass-organic C storage conversion factor obtains forest.Accumulation method is the extension of biomass method, so cannot avoid the metrical error that the selection of biomass-organic C storage conversion factor causes.
Ecological Investigation data and forest reconnaissance information combine by Biomass inventories method, first the carbon storage density Pc:Pc=V × D × r × Cc of each forest ecosystem type arborous layer is calculated, in formula, V is the unit area forest reserves of a certain Forest Types, D is stem density, r is the ratio that trunk biomass accounts for arborous layer biomass, Cc is carbon content in plant, and then the ratio of total biomass is accounted for according to arborous layer biomass, estimate the total biomass carbon reserves of unit area of each Forest Types.The precision of biological inventory method improves greatly, and range of application is also more extensive.But the research level of different regions, fine degree and estimating and measuring method are different, make the reliability of the method and comparability poor.
Existing carbon converges detection method mainly according to biomass estimation Forestry Carbon Mitigation amount, and the estimation result thus obtained is static, can not reflect the dynamic development trend of Forestry Carbon Mitigation.Moreover, there is many uncertainties in converging functional study at Forest Ecosystem Carbon, this just causes necessarily adopting many hypothesis in these methods above-mentioned and indirectly judging, cause result of study degree of accuracy lower, thus the science that greatly have impact on Global Carbon remittance variation prediction and reliability.Therefore, detecting Forestry Carbon Mitigation ability is exactly the problem that first will solve in Forest Carbon circulating research.
Summary of the invention
The present invention be directed to that the problems referred to above carry out, object is to provide a kind of carbon remittance amount considering each seeds, Forestry Carbon Mitigation is made to the method for detection of dynamic, obtain the testing result more accurately of Forestry Carbon Mitigation.
The present invention for achieving the above object, have employed following technical scheme:
The invention provides a kind of detection method of Forestry Carbon Mitigation amount, it is characterized in that, comprise the following steps: nuclear targeting step, respectively Wooden slice is made to often kind of Tree Species Selection at least 3 strain in forest, the thickness of this Wooden slice is 15 ~ 20 μm, Wooden slice is dewaxed and is transitioned in distilled water, dye 1 ~ 3 hour in the purple aqueous solution of 2% pontacyl of 1:1 and 2% chrome alum aqueous solution, then in the ethanolic solution of 35%, 2min is soaked, 2min is soaked in the ethanolic solution of 50%, 2min is soaked in the ethanolic solution of 70%, then in 95% ethanolic solution of the fast yellow TN of 2% Roc Sha Er, 10 ~ 60s is redyed, several times are dipped in straight alcohol solution, finally in the straight alcohol and pure dimethylbenzene mixed liquor of 1:1, soak 3min,
Calculate cell-wall ratio step, respectively the Wooden slice after each nuclear targeting of often kind of seeds is taken pictures, binary conversion treatment is carried out to often opening photo, and calculated the cell-wall ratio of each Wooden slice of each seeds by particle, then the mean value of cell-wall ratio calculating each seeds is as seeds cell-wall ratio;
Detect seeds accumulation step, several representational points for investigation are selected in forest, mean DBH increment and the mean stand height of each seeds is added up respectively in each points for investigation, according to mean DBH increment and average high, look into the binary standing volume table of corresponding seeds, obtain the average individual volume of each seeds, this individual volume is multiplied by the seeds strain number in each points for investigation, obtain the volume of timber of each tree kind in each points for investigation, the mean value calculating this volume of timber plants the volume of timber mean value in forest as each tree, the accumulation of each seeds in getting out of the wood according to the area reckoning of forest,
Calculate Forestry Carbon Mitigation step, calculate the carbon remittance amount of each seeds according to following formula respectively:
c in formula
ithe carbon remittance amount of certain seeds, r
ithe seeds cell-wall ratio of these seeds, V
ibe the accumulation of these seeds, then the carbon remittance amount of all seeds sued for peace, the carbon calculating forest converges, that is:
in formula, C is Forestry Carbon Mitigation amount, and n is seeds sums.
The effect of invention and effect
According to the detection method of Forestry Carbon Mitigation provided by the present invention, because first calculate the cell-wall ratio of each seeds, measure again and estimate the accumulation of each seeds in forest, then Wood microstructure is combined with carbon sink, calculate the carbon remittance amount of each seeds respectively, the carbon remittance amount of all seeds is added the carbon remittance amount that can obtain forest, therefore the method can be converged with comparing to the carbon of each seeds and be detected exactly, and take into full account the difference of different geographical and different tree species carbon sink, the carbon remittance amount of detection of dynamic forest, overcome the deficiency of Static Detection.The method simple possible, strong operability, reliability, comparability are strong.
Embodiment
Below the detection method of Forestry Carbon Mitigation involved in the present invention is elaborated.
< embodiment >
In the present embodiment, to choose the area being positioned at Chongming Island be the forest of 400 hectares is research object, calculates Forestry Carbon Mitigation amount.Chief species in this forest have ginkgo, metasequoia, glossy privet, Elaeocarpus decipiens, just bamboo, fragrant camphor tree, willow and fruit tree etc.
The detection method of this Forestry Carbon Mitigation is as follows:
Step one, nuclear targeting, selects 6 strain trees to make Wooden slice to above-mentioned often kind of seeds, and the 6 strain trees of often kind of seeds select the age of tree different, to make result of calculation more accurate as far as possible.Cut 15 ~ 20 μm of thick Wooden slices from every strain trees, then carry out nuclear targeting to each Wooden slice, nuclear targeting program is as shown in table 1.
Table 1
| Step | Processing procedure |
| 1 | Be transitioned in distilled water after dewaxing |
| 2 | Dye 1 ~ 3 hour in the purple aqueous solution of 2% pontacyl of 1:1 and 2% chrome alum aqueous solution |
| 3 | 2min is soaked in the ethanolic solution of 35% |
| 4 | 2min is soaked in the ethanolic solution of 50% |
| 5 | 2min is soaked in the ethanolic solution of 70% |
| 6 | 10 ~ 60s is redyed in 95% ethanolic solution of the fast yellow TN of 2% Roc Sha Er |
| 7 | Several times are dipped in straight alcohol solution |
| 8 | 3min is soaked in the straight alcohol and pure dimethylbenzene mixed liquor of 1:1 |
| 9 | Put into pure dimethylbenzene to preserve |
Step 2, calculates cell-wall ratio r
i, under respectively the Wooden slice after 6 of often kind of seeds nuclear targeting being placed in stereomicroscope, regulating enlargement factor as required, then take pictures and preserve.A photo is called in micro image analysis disposal system, selects suitable threshold value, comparison film carries out binary conversion treatment, then performs particle calculation command, obtains " area percentage ", be the cell-wall ratio of the Wooden slice corresponding to this photo.
Repeat aforesaid operations, calculate the cell-wall ratio of all Wooden slices.Then corresponding to 6 Wooden slices of often kind of seeds cell-wall ratio is averaged, as the seeds cell-wall ratio r of these seeds
i.
Step 3, calculates seeds accumulation V
i, in the present embodiment, select sample circle measurement method to calculate the accumulation V of each seeds in forest
i.
In forest, select 6 sample ground being enough to reflect composition and architectural feature, as points for investigation, the radius of each points for investigation is 25m.Measure the diameter of a cross-section of a tree trunk 1.3 meters above the ground of each strain trees respectively in each points for investigation, then divide seeds, the height of tree that every strain trees are measured on rank, footpath.Then calculate the timbered mean DBH increment of institute and the mean stand height of each seeds in this points for investigation respectively, result is as shown in table 2.
Table 2
| Seeds title | Mean DBH increment/cm | Average is high/m |
| Ginkgo | 18～20 | 8～10 |
| Metasequoia | 16～24 | 8～10 |
| Glossy privet | 10 | 5 |
| Elaeocarpus decipiens | 6～10 | 4 |
| Firm bamboo | 3 | 6 |
| Fragrant camphor tree | 10～20 | 8～10 |
| Willow | 20 | 8～9 |
| Fruit tree | 15 | 3～5 |
Look into the binary standing volume table of corresponding seeds according to the mean DBH increment of each seeds as shown in table 2 and the height of tree, obtain the average individual volume of each seeds.
Add up the strain number of each seeds in this points for investigation, be multiplied by corresponding average individual volume, obtain the volume of timber of each seeds in this points for investigation.
Repeat above-mentioned steps three, measure and calculate the volume of timber value of each seeds in other 5 points for investigation, then averaging, obtain the average volume of timber value of each tree kind in 6 points for investigation.Finally according to the ratio of area of woods with points for investigation area, obtain the accumulation V of each tree kind in this forest
i.
Step 4, calculate Forestry Carbon Mitigation, the computing formula of carbon remittance amount is as follows:
c in formula
ithe carbon remittance amount of certain seeds, r
ithe seeds cell-wall ratio of these seeds, V
iit is the accumulation of these seeds.According to the seeds cell-wall ratio r that step 2 calculates
iwith the seeds accumulation V that step 3 calculates
i, the carbon remittance amount C of each seeds is calculated respectively according to above-mentioned formula
i.Result of calculation is as shown in table 3.
Table 3
| Seeds title | Carbon remittance amount (C i)/t |
| Ginkgo | 30480 |
| Metasequoia | 12560 |
| Glossy privet | 4040 |
| Elaeocarpus decipiens | 4680 |
| Firm bamboo | 5280 |
| Fragrant camphor tree | 10120 |
| Willow | 12880 |
| Fruit tree | 3680 |
Then calculate:
in formula, C is Forestry Carbon Mitigation amount, and n is seeds sums.Carbon remittance amount by all seeds is sued for peace, and can obtain the carbon remittance amount of this forest:
The effect of embodiment and effect
The detection method of the Forestry Carbon Mitigation involved by the present embodiment, because first calculate the cell-wall ratio of each seeds, sample circle measurement method is adopted to estimate the accumulation of each seeds in forest again, then Wood microstructure is combined with carbon sink, obtain the computing formula of carbon remittance amount, calculate the carbon remittance amount of each seeds respectively, the carbon remittance amount of all seeds is added the carbon remittance amount that can obtain forest, therefore the method can be converged with comparing to the carbon of each seeds and be detected exactly, and take into full account the difference of different geographical and different tree species carbon sink, the carbon remittance amount of detection of dynamic forest, overcome the deficiency of Static Detection.The method simple possible, strong operability, reliability, comparability are strong.
Certainly, according to the detection method of Forestry Carbon Mitigation provided by the present invention, be not merely defined in the content described in above embodiment.These are only the present invention conceive under basic explanation, and according to any equivalent transformation that technical scheme of the present invention is done, all should protection scope of the present invention be belonged to.
In the present embodiment, sample circle measurement method is selected to measure the accumulation of each seeds in forest, mechanical point sample plot measurement method or strip sample measurement method can also be selected to measure seeds accumulation, as long as mean DBH increment and the height of tree of each seeds can be detected exactly, thus calculate each accumulation of planting in forest of setting.
Claims (1)
1. a detection method for Forestry Carbon Mitigation amount, is characterized in that, comprises the following steps:
Nuclear targeting step, respectively Wooden slice is made to often kind of Tree Species Selection at least 3 strain in forest, the thickness of this Wooden slice is 15 ~ 20 μm, described Wooden slice is dewaxed and is transitioned in distilled water, dye 1 ~ 3 hour in the purple aqueous solution of 2% pontacyl of 1:1 and 2% chrome alum aqueous solution, then in the ethanolic solution of 35%, 2min is soaked, 2min is soaked in the ethanolic solution of 50%, 2min is soaked in the ethanolic solution of 70%, then in 95% ethanolic solution of the fast yellow TN of 2% Roc Sha Er, 10 ~ 60s is redyed, several times are dipped in straight alcohol solution, finally in the straight alcohol and pure dimethylbenzene mixed liquor of 1:1, soak 3min,
Calculate cell-wall ratio step, respectively to often kind of seeds each described in Wooden slice after nuclear targeting take pictures, binary conversion treatment is carried out to often opening photo, and calculated the cell-wall ratio of each Wooden slice of each seeds by particle, then the mean value of cell-wall ratio calculating each seeds is as seeds cell-wall ratio;
Detect seeds accumulation step, several representational points for investigation are selected in described forest, respectively at mean DBH increment and the mean stand height of each described seeds of each described points for investigation statistics, according to described mean DBH increment and average high, look into the binary standing volume table of corresponding seeds, obtain the average individual volume of each described seeds, this individual volume is multiplied by the seeds strain number in each described points for investigation, obtain the volume of timber of each described tree kind in each described points for investigation, the mean value calculating this volume of timber plants the volume of timber mean value in described forest as each described tree, the accumulation of each described seeds in described forest is gone out according to the area reckoning of described forest,
Calculate Forestry Carbon Mitigation step, calculate the carbon remittance amount of each described seeds according to following formula respectively:
c in formula
ithe carbon remittance amount of certain seeds, r
ithe described seeds cell-wall ratio of these seeds, V
ibe the accumulation of these seeds, then the carbon remittance amount of all seeds sued for peace, the carbon calculating described forest converges, that is:
in formula, C is Forestry Carbon Mitigation amount, and n is seeds sums.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987991A (en) * | 2016-05-10 | 2016-10-05 | 中国科学院地球化学研究所 | Method for determining carbon sinking capacity of mangrove forest |
| CN112287287A (en) * | 2020-11-06 | 2021-01-29 | 东北林业大学 | Method, system and device for measuring forest carbon sequestration |
| CN113762137A (en) * | 2021-09-02 | 2021-12-07 | 甘肃同兴智能科技发展有限责任公司 | Remote sensing image forest region carbon sink calculation method based on deep learning |
| CN114894254A (en) * | 2022-07-13 | 2022-08-12 | 四川省林业和草原调查规划院(四川省林业和草原生态环境监测中心) | Dynamic metering method for carbon sink of single-plant wood |
| US11481904B1 (en) | 2022-01-04 | 2022-10-25 | Natural Capital Exchange, Inc. | Automated determination of tree inventories in ecological regions using probabilistic analysis of overhead images |
| CN115712995A (en) * | 2022-11-08 | 2023-02-24 | 福智生(北京)科技有限公司 | Method, device and equipment for calculating carbon sink of artificial forest and storage medium |
| CN116992191A (en) * | 2023-09-27 | 2023-11-03 | 西安中碳环境科技有限公司 | Forest carbon sink dynamic monitoring and evaluating system driven by multi-source remote sensing data |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987991A (en) * | 2016-05-10 | 2016-10-05 | 中国科学院地球化学研究所 | Method for determining carbon sinking capacity of mangrove forest |
| CN112287287A (en) * | 2020-11-06 | 2021-01-29 | 东北林业大学 | Method, system and device for measuring forest carbon sequestration |
| CN112287287B (en) * | 2020-11-06 | 2021-04-27 | 东北林业大学 | Method, system and device for measuring forest carbon sequestration |
| CN113762137A (en) * | 2021-09-02 | 2021-12-07 | 甘肃同兴智能科技发展有限责任公司 | Remote sensing image forest region carbon sink calculation method based on deep learning |
| US11481904B1 (en) | 2022-01-04 | 2022-10-25 | Natural Capital Exchange, Inc. | Automated determination of tree inventories in ecological regions using probabilistic analysis of overhead images |
| CN114894254A (en) * | 2022-07-13 | 2022-08-12 | 四川省林业和草原调查规划院(四川省林业和草原生态环境监测中心) | Dynamic metering method for carbon sink of single-plant wood |
| CN114894254B (en) * | 2022-07-13 | 2022-11-08 | 四川省林业和草原调查规划院(四川省林业和草原生态环境监测中心) | Dynamic metering method for carbon sink of single-plant wood |
| US11921097B2 (en) | 2022-07-13 | 2024-03-05 | Sichuan Provincial Institute of Forestry and Grassland Inventory and Planning | Method for dynamic measurement of individual tree carbon sink |
| CN115712995A (en) * | 2022-11-08 | 2023-02-24 | 福智生(北京)科技有限公司 | Method, device and equipment for calculating carbon sink of artificial forest and storage medium |
| CN116992191A (en) * | 2023-09-27 | 2023-11-03 | 西安中碳环境科技有限公司 | Forest carbon sink dynamic monitoring and evaluating system driven by multi-source remote sensing data |
| CN116992191B (en) * | 2023-09-27 | 2023-12-08 | 西安中碳环境科技有限公司 | Forest carbon sink dynamic monitoring and evaluating system driven by multi-source remote sensing data |
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