CN109211149A - A method of measurement plant leaf area - Google Patents
A method of measurement plant leaf area Download PDFInfo
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- CN109211149A CN109211149A CN201811425831.8A CN201811425831A CN109211149A CN 109211149 A CN109211149 A CN 109211149A CN 201811425831 A CN201811425831 A CN 201811425831A CN 109211149 A CN109211149 A CN 109211149A
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- blade
- plant leaf
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- leaf area
- measurement
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000005259 measurement Methods 0.000 title claims abstract description 19
- 230000001788 irregular Effects 0.000 abstract description 3
- 241000196324 Embryophyta Species 0.000 description 32
- 230000008901 benefit Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 241000315276 Astragalus melilotoides Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/28—Measuring arrangements characterised by the use of optical techniques for measuring areas
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present invention provides a kind of methods for measuring plant leaf area, belong to plant physioecology studying technological domain, comprising the following steps: plant leaf blade acquisition, plant leaf blade is taken pictures, picture format is converted, is determined TIC point coordinate, is identified using eCognition software to picture, length of blade and width, topology are read using the scale in ArcMap and obtains data, obtain leaf area.This method is at low cost, flexible operation, and measurement precisely, saves the time, the irregular blade of effective solution and the measurement of small-sized blade area and the problem of calculate, and reduces human error, individually can save and read again；The leaf area of any plant leaf blade can be measured；Field operation is very convenient, can carry out the measurement of great amount of samples；Line and planar information are directly measured by computer, this method reduces subjective impact bring error well；Each vector file established individually can be saved and be read again, convenient for using next time.
Description
Technical field
The invention belongs to plant physioecology studying technological domains, and in particular to a kind of side for measuring plant leaf area
Method.
Background technique
Plant functional traits are easy to observe and measure, and are the knots for adapting to varying environment during species long-term evolution and being formed
Fruit, being capable of adaptation and response of the objective expression plant to external environment.Plant functional traits are able to respond the variation in habitat and right
Ecosystem function has certain effect, reflects the indicative function in terms of plant characterization ecosystem function, embodies and ecology
Relationship between systematic procedure and function.And plant functional traits response ecosystem processes middle period character plays crucial work
With, and leaf character middle period area measurement is essential.
Currently, mainly carrying out the survey of plant leaf area by portable laser leaf area instrument and traditional number grid method
Calmly, which has the advantages that small in size, easy to carry, and traditional number grid method is easy to operate.Meanwhile it is existing just
Taking the measurement such as formula laser leaf area instrument and traditional number grid plant leaf area, there is also following defects:
(1) portable laser leaf area instrument price, maintenance cost is high and maintenance time is long when damaging；
(2) there is the situation of data inaccuracy when surveying small plant leaf area using portable laser leaf area instrument, than
It is too small without data, Er Qie such as to will appear blade when using the leaf area of laser leaf area instrument measurement Astragalus Melilotoides Pll
Blade is also easily damaged during measurement；
(3) instrument itself also has limitation, portable laser leaf when rainy or wet weather is run into field work to weather
Planimeter cannot use；
(4) traditional number grid survey leaf area method it is time-consuming and also everyone number method it is different, the data inaccuracy of statistics.
Therefore, the method for measuring plant leaf area based on ArcGIS technology that present applicant proposes a kind of.
Summary of the invention
In order to overcome the shortcomings of the prior art described above, the present invention provides a kind of methods for measuring plant leaf area.
To achieve the goals above, the invention provides the following technical scheme:
A method of measurement plant leaf area, comprising the following steps:
Step 1, field acquisition plant leaf blade；
Step 2 takes pictures to the plant leaf blade of acquisition, obtains the original jpeg image file of plant leaf blade；
Original jpeg image file is imported in software PCI Geomatica V8.2, utilizes software PCI by step 3
Original jpeg image file is converted into PIX file by Geomatica V8.2, in case editing in ArcMap；
Step 4 determines image in every PIX file under the Xpace order of PCI Geomatica V8.2 software
The coordinate of the lower left corner and upper right corner TIC point, to determine the length and width of general image in PIX file；
Step 5 carries out automatic identification to blade PIX file, obtains the side of every blade using eCognition software
Boundary line picture, and export as vector file；
Step 6 opens vector file in ArcMap, and using the scale in ArcMap, it is long to carry out blade to vector file
The reading of degree and two indexs of width；
Step 7 opens the boundary vector file of blade in ArcGIS, calculates blade face automatically using computational geometry tool
Product.
Preferably, described pair acquisition plant leaf blade take pictures, obtain original jpeg image file the following steps are included:
In camera shelf upper berth graph paper, the plant leaf blade of acquisition is placed on graph paper, is brought into focus, is taken pictures or to press mark
This mode takes back laboratory and takes pictures, and should vertically take pictures when taking pictures, obtain original jpeg image file.
The method of measurement plant leaf area provided by the invention has the advantages that
(1) at low cost, flexible operation, measurement precisely, saves the time, effective solution irregular blade and small-sized blade
The problem of area measurement and calculating, reduces human error, individually can save and read again；
(2) leaf area index of any plant leaf blade can be measured；
(3) field operation is very convenient, can carry out the measurement of great amount of samples；
(4) line and planar information are directly measured by computer, this method reduces subjective impact bring error well；
(5) each vector file established individually can be saved and be read again, convenient for using next time.
Detailed description of the invention
Fig. 1 is the specific flow chart that plant leaf area is measured in the present invention；
Fig. 2 is to take pictures in step 2 to blade, and save as jpeg image file；
Fig. 3 be under PCI Geomatica V8.2 software, after former jpeg image file is further processed, benefit
With eCognition software, the blade boundary line figure of automatic identification acquisition is carried out to PIX file；
Fig. 4 is that vector file is opened in ArcMap, carries out boundary line modification；
Fig. 5 is the vector file exported again；
Fig. 6 is the calculating that leaf area is carried out using ArcMap.
Specific embodiment
With reference to the accompanying drawing, further description of the specific embodiments of the present invention.Following embodiment is only used for more
Technical solution of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
Embodiment 1
With the development of science and technology, ArcGIS is more and more extensive in the theory of ecological every field and application, such as:
ArcGIS calculates ecosystem carrying capacity using ArcGIS in landscape ecology, marine eco-environment monitoring, farmland ecosystem,
ArcGIS does ecological risk spatial distribution map etc..And ArcGIS technology is increasingly mature, and it is indispensable to become field of ecology
A technology, therefore, the present embodiment completes the calculating of plant leaf area by ArcGIS.
A kind of method for measuring plant leaf area is present embodiments provided, it is specific as shown in Figures 1 to 6, including following step
It is rapid:
Step 1, field acquisition plant leaf blade, the blade of acquisition can be any shape, such as sheet, strip or needle-shaped；
Step 2 takes pictures to the plant leaf blade of acquisition, obtains the original jpeg image file of plant leaf blade；
Concrete operations are as follows: the plant leaf blade of acquisition is placed on graph paper, mixes up coke by the graph paper on camera shelf upper berth
Away from being taken pictures or take back laboratory in a manner of pressing sample and taken pictures, should vertically be taken pictures when taking pictures, obtain original JPEG
Image file；
Original jpeg image file is imported in software PCI Geomatica V8.2, utilizes software PCI by step 3
Original jpeg image file is converted into PIX file by Geomatica V8.2, in case editing in ArcMap；
Step 4 determines the length and width of general image in PIX file, specially in PCI Geomatica V8.2 software
Under Xpace order, the coordinate of the lower left corner of image and upper right corner TIC point in every PIX file, and customized unit are determined
(cm)；
Step 5 carries out automatic identification to blade PIX file, obtains the side of every leaf using eCognition software
Boundary line picture, and export as vector file；
Step 6 opens vector file in ArcMap, and using the scale in ArcMap, it is long to carry out blade to vector file
The reading of degree and two indexs of width；
Step 7 opens the boundary vector file of leaf in ArcGIS, and field is created in attribute, is named as
" Area " puts right button in newer field, selects " computational geometry ", calculate leaf area automatically, calculation basis is the seat in step 4
Length of blade and width value in scale value, that is, step 6.
The method method of measurement plant leaf area provided in this embodiment is at low cost, flexible operation, measurement precisely, when saving
Between, the irregular blade of effective solution and the measurement of small-sized blade area and the problem of calculate reduce human error, can be independent
It saves and reads again；The leaf area index of any plant leaf blade can be measured；Field operation is very convenient, can carry out a large amount of samples
This measurement；Line and planar information are directly measured by computer, this method reduces subjective impact bring error well；It builds
Vertical each vector file individually can be saved and be read again, convenient for using next time, due to provincial characteristics, and northern grassland, especially
The characteristics of its desert steppe plant leaf blade has miniaturization or is degenerated to needle prick shape, is difficult to obtain with portable laser leaf area
Correct data.And the new method used in the present invention can accurately measure the plant leaf blade parameter of any size.
Embodiment described above is merely preferred embodiments of the present invention, and the scope of protection of the present invention is not limited to this,
Anyone skilled in the art within the technical scope of the present disclosure, the technical solution that can be become apparent to
Simple change or equivalence replacement, all belong to the scope of protection of the present invention.
Claims (2)
1. a kind of method for measuring plant leaf area, which comprises the following steps:
Step 1, field acquisition plant leaf blade；
Step 2 takes pictures to the plant leaf blade of acquisition, obtains the original jpeg image file of plant leaf blade；
Original jpeg image file is imported in software PCI Geomatica V8.2, utilizes software PCI by step 3
Original jpeg image file is converted into PIX file by Geomatica V8.2, in case editing in ArcMap；
Step 4 determines the lower-left of image in every PIX file under the Xpace order of PCI Geomatica V8.2 software
The coordinate of angle and upper right corner TIC point, to determine the length and width of general image in PIX file；
Step 5 carries out automatic identification to blade PIX file, obtains the boundary line of every blade using eCognition software
Picture, and export as vector file；
Step 6 opens vector file in ArcMap, using the scale in ArcMap, to vector file carry out length of blade and
The reading of two indexs of width；
Step 7 opens the boundary vector file of blade in ArcGIS, calculates leaf area automatically using computational geometry tool.
2. the method for measurement plant leaf area according to claim 1, which is characterized in that the plant leaf blade of described pair of acquisition
It takes pictures, obtains original jpeg image file the following steps are included: in camera shelf upper berth graph paper, by the leaves of plants of acquisition
Piece is placed on graph paper, is brought into focus, is taken pictures or takes back laboratory in a manner of pressing sample and taken pictures, answered when taking pictures
It vertically takes pictures, obtains original jpeg image file.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811425831.8A CN109211149A (en) | 2018-11-27 | 2018-11-27 | A method of measurement plant leaf area |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811425831.8A CN109211149A (en) | 2018-11-27 | 2018-11-27 | A method of measurement plant leaf area |
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| CN109211149A true CN109211149A (en) | 2019-01-15 |
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| CN201811425831.8A Pending CN109211149A (en) | 2018-11-27 | 2018-11-27 | A method of measurement plant leaf area |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579420A (en) * | 2019-09-17 | 2019-12-17 | 北京大学深圳研究生院 | unmanned aerial vehicle-based whole arbor dust retention amount calculation method |
| CN112461075A (en) * | 2020-11-05 | 2021-03-09 | 内蒙古工业大学 | Grassland vegetation leaf area measuring tool and method |
| CN113514257A (en) * | 2021-06-24 | 2021-10-19 | 中国第一汽车股份有限公司 | Performance evaluation standard evaluation method for passenger vehicle driving condition windshield defogging system |
| CN116098047A (en) * | 2023-02-16 | 2023-05-12 | 昆明理工大学 | Vegetable culture method and system |
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| CN101298986A (en) * | 2007-04-30 | 2008-11-05 | 中国科学院沈阳应用生态研究所 | Field measuring method of sand broad leaf plant leaf area |
| CN103791861A (en) * | 2014-02-10 | 2014-05-14 | 黑龙江省森林与环境科学研究院 | Plant leaf area lossless measuring method |
| CN108120402A (en) * | 2017-12-27 | 2018-06-05 | 广西壮族自治区林业科学研究院 | A kind of method that plant leaf area is measured based on Photoshop softwares |
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2018
- 2018-11-27 CN CN201811425831.8A patent/CN109211149A/en active Pending
Patent Citations (3)
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| CN101298986A (en) * | 2007-04-30 | 2008-11-05 | 中国科学院沈阳应用生态研究所 | Field measuring method of sand broad leaf plant leaf area |
| CN103791861A (en) * | 2014-02-10 | 2014-05-14 | 黑龙江省森林与环境科学研究院 | Plant leaf area lossless measuring method |
| CN108120402A (en) * | 2017-12-27 | 2018-06-05 | 广西壮族自治区林业科学研究院 | A kind of method that plant leaf area is measured based on Photoshop softwares |
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| 康萨如拉 等: "一种植物叶片的解剖结构显微测量新方法", 《生物学杂志》 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579420A (en) * | 2019-09-17 | 2019-12-17 | 北京大学深圳研究生院 | unmanned aerial vehicle-based whole arbor dust retention amount calculation method |
| CN110579420B (en) * | 2019-09-17 | 2022-06-17 | 北京大学深圳研究生院 | Unmanned aerial vehicle-based whole arbor dust retention amount calculation method |
| CN112461075A (en) * | 2020-11-05 | 2021-03-09 | 内蒙古工业大学 | Grassland vegetation leaf area measuring tool and method |
| CN113514257A (en) * | 2021-06-24 | 2021-10-19 | 中国第一汽车股份有限公司 | Performance evaluation standard evaluation method for passenger vehicle driving condition windshield defogging system |
| CN116098047A (en) * | 2023-02-16 | 2023-05-12 | 昆明理工大学 | Vegetable culture method and system |
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Application publication date: 20190115 |