CN101915565A - Outdoor measuring sample frame for coverage of cryptogam - Google Patents
Outdoor measuring sample frame for coverage of cryptogam Download PDFInfo
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- CN101915565A CN101915565A CN201010234699XA CN201010234699A CN101915565A CN 101915565 A CN101915565 A CN 101915565A CN 201010234699X A CN201010234699X A CN 201010234699XA CN 201010234699 A CN201010234699 A CN 201010234699A CN 101915565 A CN101915565 A CN 101915565A
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- cryptogam
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- cover degree
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Abstract
The invention relates to an outdoor measuring sample frame for coverage of cryptogam. The outdoor measuring sample frame consists of a grid iron pin frame and probes, wherein the grid iron pin frame is square; and the probes are fixedly connected with each grid node below the iron pin frame. During measurement, the coverage and the species coverage of the cryptogam at a sample area are calculated according to the records of the cryptogam species at fall points of the probes. The measuring instrument has the advantages of easy manufacturing, simple operation, accurate measurement result and convenient carrying and can be applied to dynamic resource investigation of vegetation, and particularly plays a helping role in investigating and researching diversity and development status of the cryptogam.
Description
Technical field
The invention belongs to physical geography systems technology field.Be a kind of portable cryptogam cover degree measurement mechanism specifically, particularly be applicable to open-air flowering plant cover degree, the measurement of branch cover degree.
Technical background
Cryptogam be in the plantage with the corresponding taxon of polycarpeae, do not produce seed and breed with spore, comprise algae, lichens, liver moss and pteridophyte.The same with the polycarpeae covering, cryptogam group is the important cover type (its cover degree reaches 40%) on the arid biogeographic zone face of land.In arid, semiarid zone, cryptogam can not only grow in severe drought lack of water, the barren rugged environment of nutrition, breed, and can improve soil texture by its metabolic way, increases soil stability and fertility.Checking winds and fixing drifting sand, preventing the soil erosion, promoting aspects such as formation of biological soil skinning and increase bio-diversity that cryptogam has irreplaceable vital role.
China is one of country that the desert area is big and desertification harm is serious in the world, at the arid of the not enough 200mm of annual precipitation and the unable support large tracts of land in the Desert Area face of land, relative homogeneous and the covering of the polycarpeae group of continuous distribution, but being enough to support cryptogamae all living creatures long hair educates, and in a lot of areas, their distribution area is often greater than polycarpeae.The lot of experiments and the fact show, cryptogamic g and D situation can significantly impact each aspect of the ecosystem, become the important factor in order of arid desert area vegetation succession, particularly determined it the face of land to be resisted the ability of wind erosion and water erosion.Therefore, most important to the correct assessment of cryptogam group development degree for the level of scientific management that reduces input cost, raising engineering effect and the lifting ecosystem in China's ecologic environment engineering construction.
Cover degree is the comprehensive quantification index that the reflection plant community covers dense degree, it is an important quality standard weighing the vegetation ecological function, also be important indication and the control criterion that the local area ecological system environments changes, and the quantitative examination that can be fields such as ecology, plant, water and soil conservation, soil provide basic data.Thereby cover degree is used as one of the most frequently used and basic index of a certain regional cryptogam development condition of reflection.U.S. scientific worker is very early the important content of cryptogam cover degree index as federal earth monitor project; In Australian eastern region since 20th century the mid-80 just collected cryptogamic cover degree data; And China is late in the starting of cryptogam cover degree measurement this respect, only carries out the measurement of cryptogam cover degree at present in very little some areas.Consider cryptogam to ecosystem each side influence, the cryptogam cover degree measured necessary and whether scientific and reasonable can whether the measuring and calculating of cover degree precisely become and influence the experimental study conclusion key that correctly be estimated with state of ecological environment.
The measuring method of existing relevant vegetation cover degree almost all at the polycarpeae design, mainly contains: (1) visual mensuration: according to naked eyes and rely on the personal experience directly to differentiate or utilize objects of reference such as photograph, grid to carry out subjectivity and estimate; (2) instrument measuring method: obtain vegetation cover degree information by special sensor or picture pick-up device and analyze; (3) remote sensing method: utilize remote sensing technology to extract study area vegetation spectral information, again the relation of spectral information and vegetation cover degree is carried out decipher.Along with the improvement upgrading of correlation technique and equipment, taking the photograph phase method and remote sensing method becomes the main flow that the polycarpeae cover degree is measured gradually in recent years.But, individual short and small and be habitat, the face of land because various, the kind of cryptogam kind is identified difficulty, add that its form and surface color are changeable, greatly reduced and taken the photograph phase method and remote sensing method measuring accuracy the cryptogam cover degree.Although have the scientific research of part country and staff to make some measurement cover degree instruments by oneself at cryptogam, very coarse, precision is not high, still goes back the specialist tools that neither one cryptogam cover degree accurate, unified and standard is measured so far both at home and abroad.
The Chinese Academy of Sciences Shapotou sand desert survey testing station that carries out one of the R﹠D institution of arid biogeographic zone cryptogam research as China the earliest is devoted to the improvement of cryptogam cover degree measuring method and instrument always.On the long-term observation practical basis, we think and measure the sample frame by means of the cryptogam cover degree, by the cryptogam systematicalian or to calculate on the spot through the scientific research personnel of training be the most accurate, reliable at present method.
Summary of the invention
In view of above-mentioned, the object of the present invention is to provide a kind of simple in structurely, be suitable for outdoor measuring sample frame for coverage of cryptogam
The object of the present invention is achieved like this:
A kind of outdoor measuring sample frame for coverage of cryptogam is made up of grid iron punch block and probe, and grid iron punch block is a square, under the fixed iron punch block of probe on each grid node.
The present invention compares with existing cryptogam cover degree tools for measurement has following advantage:
(1) simple in structure, easy to make; (2) be easy to carry, processing ease is fit to field work; (3) measurement result is accurate, and the pin mark surface of contact has reduced the observation area on the one hand, has improved the simple property of last cryptogam kind of contact point, is convenient to kind and identifies; On the other hand, 13 * 13 networks can better reflect sample ground cryptogam cover degree situation, have avoided number of probes to lack representative and the quantity big problem of workload for a long time after a little while.
Description of drawings
Fig. 1 is an outdoor measuring sample frame for coverage of cryptogam.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described again:
As shown in Figure 1, a kind of outdoor measuring sample frame for coverage of cryptogam is made up of grid iron punch block 1 and probe 2.Grid iron punch block 1 is square, and the length of side is 30cm, and grid iron punch block 1 grid specification is 2.5cm * 2.5cm; Each fixes a 5cm long probe 2 each grid node, and probe 2 is the hollow tubular probe, has 169.
During mensuration, at first that sample prescription to be measured is moistening with pure water, cryptogam formalness and color are changed, then the sample frame is positioned on the sample prescription to be measured, make the fixed probe of 1 time grid node of grid iron punch block 2 perpendicular to sample prescription, observe the cryptogam that each probe 2 touches, and corresponding plant species title is recorded in the cryptogam cover degree distribution table.Distribution table is provided with sample ground title (numbering) and control time, and lined is 13 columns, and perpendicular lattice are 13 columns, and each space is corresponding with the fixed probe of 1 time grid node of grid iron punch block 2 respectively.During observation, if probe 2 does not touch any cryptogam, then the relevant position keeps blank in form; If probe 2 touches cryptogam, then observed cryptogenic species title or specific name are write down in the relevant position in form.At last, the number that a certain cryptogenic species that is write down according to the form statistics records, the cryptogam total cover-degree is the accumulated value of every kind of cryptogam cover degree being write down in the table in cover degree=this kind cryptogam number/169 * 100% of this kind in this sample prescription so, sample prescription.
Claims (1)
1. an outdoor measuring sample frame for coverage of cryptogam is made up of grid iron punch block (1) and probe (2), it is characterized in that grid iron punch block (1) is square, and probe (2) is cemented under the iron punch block (1) on each grid node.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010234699XA CN101915565A (en) | 2010-07-20 | 2010-07-20 | Outdoor measuring sample frame for coverage of cryptogam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010234699XA CN101915565A (en) | 2010-07-20 | 2010-07-20 | Outdoor measuring sample frame for coverage of cryptogam |
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| CN101915565A true CN101915565A (en) | 2010-12-15 |
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| CN201010234699XA Pending CN101915565A (en) | 2010-07-20 | 2010-07-20 | Outdoor measuring sample frame for coverage of cryptogam |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589508A (en) * | 2012-01-16 | 2012-07-18 | 北京林业大学 | Lawn coverage instrument |
| CN104061880A (en) * | 2014-06-21 | 2014-09-24 | 河南科技大学 | Method for determining biological soil crust coverage |
| CN105606061A (en) * | 2016-03-10 | 2016-05-25 | 北京林业大学 | Lawn quadrat coverage detection method and apparatus |
| CN105651153A (en) * | 2016-04-01 | 2016-06-08 | 岭南师范学院 | Sample box and method for measuring incidence and severity of lawn grass diseases |
| CN114858111A (en) * | 2022-04-18 | 2022-08-05 | 大连海宝渔业有限公司 | Method for detecting swimming distance of kelp zoospores |
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| US3904293A (en) * | 1973-12-06 | 1975-09-09 | Sherman Gee | Optical method for surface texture measurement |
| CN2048574U (en) * | 1989-03-21 | 1989-11-29 | 河北省张家口农业专科学校 | Vegetation coverage meter |
| CN101363723A (en) * | 2008-09-08 | 2009-02-11 | 中国农业科学院农业资源与农业区划研究所 | Method and device for measuring herbaceous plant |
| CN201196565Y (en) * | 2008-04-25 | 2009-02-18 | 北京师范大学 | Measuring apparatus for planting coverage |
| CN101509751A (en) * | 2009-03-16 | 2009-08-19 | 北京林业大学 | Herb sample area cover degree, sub cover degree measuring apparatus |
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2010
- 2010-07-20 CN CN201010234699XA patent/CN101915565A/en active Pending
Patent Citations (5)
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| US3904293A (en) * | 1973-12-06 | 1975-09-09 | Sherman Gee | Optical method for surface texture measurement |
| CN2048574U (en) * | 1989-03-21 | 1989-11-29 | 河北省张家口农业专科学校 | Vegetation coverage meter |
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| CN101363723A (en) * | 2008-09-08 | 2009-02-11 | 中国农业科学院农业资源与农业区划研究所 | Method and device for measuring herbaceous plant |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589508A (en) * | 2012-01-16 | 2012-07-18 | 北京林业大学 | Lawn coverage instrument |
| CN104061880A (en) * | 2014-06-21 | 2014-09-24 | 河南科技大学 | Method for determining biological soil crust coverage |
| CN105606061A (en) * | 2016-03-10 | 2016-05-25 | 北京林业大学 | Lawn quadrat coverage detection method and apparatus |
| CN105606061B (en) * | 2016-03-10 | 2020-05-12 | 北京林业大学 | Detection apparatus for meadow appearance side of coverage degree |
| CN105651153A (en) * | 2016-04-01 | 2016-06-08 | 岭南师范学院 | Sample box and method for measuring incidence and severity of lawn grass diseases |
| CN114858111A (en) * | 2022-04-18 | 2022-08-05 | 大连海宝渔业有限公司 | Method for detecting swimming distance of kelp zoospores |
| CN114858111B (en) * | 2022-04-18 | 2023-11-28 | 大连海宝渔业有限公司 | Method for detecting swimming distance of kelp spore |
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Application publication date: 20101215 |