CN204988385U - Device of trunk stemflow volume is collected, measured - Google Patents
Device of trunk stemflow volume is collected, measured Download PDFInfo
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- CN204988385U CN204988385U CN201520574836.2U CN201520574836U CN204988385U CN 204988385 U CN204988385 U CN 204988385U CN 201520574836 U CN201520574836 U CN 201520574836U CN 204988385 U CN204988385 U CN 204988385U
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Abstract
The utility model relates to a device of trunk stemflow volume is collected, measured. Its characteristic is utilized the polyurethane plastic tubing to be ring groove and is twined around the trunk according to 30 inclination, and dig a duck eye in polyurethane recess bottom and connect the aqueduct, with the electromagnetism tipping bucket water meter of aqueduct with the leading -in double -deck surge drum upper portion of trunk runoff of collecting, the electron contact connection singlechip data collection station of electromagnetism tipping bucket water meter, a bottom intercommunication water storage section of thick bamboo, the singlechip data collection station arrange in the insulation can. The utility model discloses simple structure, trunk stem flow data realizes the automatic of trunk stemflow volume and surveys in succession. The problem of for a long time trunk stemflow observed data discontinuous is solved, provide reliable science data for trunk stemflow research.
Description
Technical field
The utility model belongs to hydrological science field, specifically refers to a kind of device improving water flow in the stem and collect.
Background technology
Precipitation is reallocated as penetrating rain, stem flow and forest canopy by Vegetation canopy again, is the first contact bed of forest ecosystem Water Transport.Compared with throughfall, the ratio that stem flow accounts for gross precipitation is less, stem flow as Vegetation canopy to rainfall redistribution, on the one hand, stem flow directly can form supply to plant root soil moisture, is of great significance Desert Area shrub growth tool; On the other hand, different condition of raining (factor such as rainfall, raininess) and plant forms (hat width, branch, leading thread etc.) also have considerable influence to the formation of water flow in the stem.In research process, deduct with rainfall amount the interception penetrating the water yield to estimate separately and there is comparatively big error.Stem flow can be ignored by Many researchers usually.But, stem flow can change the space distribution of precipitation, the nutrient density comprised in this part moisture is several times as much as atmospheric precipitation and penetrates rain, and can go directly root system of plant, be convenient to absorption and the utilization of plant, make precipitation and nutrient concentrate near plant stem, affect the soil moisture around trunk, the absorption of nutrient content and the activity of microorganism.Particularly important to vegetation at arid biogeographic zone stem flow.Therefore, the correlative study carrying out stem flow has important Eco-hydrological and biomass geochemistry meaning.
The position erection stem flow collector of distance ground certain altitude (1-1.5m) on trunk at present about the most research of stem flow.Stem flow collector mainly contains two kinds of forms: spirality (spiraltype) gatherer and annular (collartype) gatherer.Spirality gatherer is that stem stream is directed to spiral groove from trunk, and flows out along spiral groove bottom.The problem that spirality gatherer may run into is that the litter falling to groove can flow to the outlet of bottom along with water, causes outlet being blocked by litter, or flows into measuring system and affect the correctness of data.
Summary of the invention
In view of above-mentioned, the device that the purpose of this utility model is to provide a kind of collection, measures water flow in the stem.Utilize this device timing automatic can measure water flow in the stem, replacing artificial, discrete observation data by automatic, continuous print stem flow Monitoring Data, increase monitoring frequency and range, improving the precision of monitoring, to obtaining more stem flow data.
The purpose of this utility model is achieved through the following technical solutions:
A device for collection, measurement water flow in the stem, is mainly made up of trunk, annular recess, aqueduct, electromagnetism tipping bucket watermeter, double-decker collection cylinder, single-chip data acquisition device, insulation can, water storage cylinder.Polyurethane plastics pipe semicircle is sliced off in a groove, be wound on trunk by the angles of inclination of 30 °, cement with glass cement, it is characterized in that digging a duck eye at polyurethane ring-type bottom portion of groove is connected with the bevel of aqueduct one end, the other end of aqueduct enters the electromagnetism tipping bucket watermeter on double-decker collection cylinder upper strata, the electronic contact of electromagnetism tipping bucket watermeter connects single-chip data acquisition device, and bottom is communicated with water storage cylinder, and single-chip data acquisition device is placed in insulation can.
The good effect of advantage of the present utility model and generation is:
1) the utility model timing automatic can measure Different forest stands water flow in the stem.Replace artificial, discrete observation data by automatic, continuous print stem flow Monitoring Data, stem flow is carried out collect, be stored in water-storing bottle, save and manually climb participation in a large number.
2) electromagnetism tipping bucket watermeter tipping bucket inclination angle is that 20 ° of-25 ° of retainings are stable, reproducible; Turnover panel can shock absorbing, reduce tipping bucket resilience, after arranging turnover panel, instrument measuring accuracy rises to a grade, works more reliable.
3) the utility model structure is simple, is easy to promote, and can store stem flow observation data by Timing measurement record, for stem flow research provides reliable science data.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram.
Embodiment
The electromagnetism tipping bucket watermeter 4 that the utility model adopts is the TDCR2 of Beijing Ucsensor Technology Co., Ltd.'s cooperation research and development, and Measurement Resolution is 0.1mm; Data acquisition core control part is a single-chip microcomputer, co-ordination under single-chip data acquisition device 6 controls, and forms the automatic stem flow of a set of standard and collects measuring system.
Below in conjunction with accompanying drawing, the technical solution of the utility model is further described again:
As shown in Figure 1, the device of a kind of collection, measurement water flow in the stem, is mainly made up of trunk 1, annular recess 2, aqueduct 3, electromagnetism tipping bucket watermeter 4, double-decker collection cylinder 5, single-chip data acquisition device 6, insulation can 7, water storage cylinder 8.Select the forest zone underlying surface 9 that standing forest is evenly distributed, crown canopy branches and leaves structure can represent the sample trees of average crown canopy, slices off diameter 3cm polyurethane plastics pipe semicircle in a groove 2, is wound on the trunk 1 of sample trees, cements with glass cement by the angles of inclination of 30 °.Being wound around is highly butt 1.5m.A duck eye and the long 4cm in aqueduct 3 one end is dug at polyurethane ring-type bottom portion of groove, wide 0.8cm bevel connects, often enclose 2-4 place, make stem flow can import in aqueduct 3 along bevel, the trunk runoff collected is imported again the electromagnetism tipping bucket watermeter 4 on double-decker collection cylinder 5 upper strata by aqueduct 3, the electronic contact of electromagnetism tipping bucket watermeter 4 connects single-chip data acquisition device 6, and bottom is communicated with water storage cylinder 8, and single-chip data acquisition device 6 is placed in insulation can 7.
In use procedure, open portable notebook computer, USB port is utilized to connect single-chip data acquisition device 6, open single-chip data acquisition device 6 automatically collect and store stem flow data, enter the frequency that capture setting can arrange measurement, opening single-chip data acquisition device 6 allows the automatic measurement collection device of stem flow start working, and automatically records water flow in the stem by single-chip data acquisition device 6, and click data is downloaded can download stem flow data.
The 6-10 month in 2010, strangle South Mountain in Middle Section of Qilian Mountain holder and the device that water flow in the stem was collected, measured to five covers is installed, carry out test observation to bush cinqefoil, high Pentaclethra macrophylla, sea-buckthorn and shagspine peashrub bark stem and leaf shrubbery stem flow, bush cinqefoil, high Pentaclethra macrophylla, sea-buckthorn and shagspine peashrub bark stem and leaf shrubbery stem flow rate are respectively 3.4%, 3.2%, 8.0% and 4.2%.
Claims (1)
1. a collection, measure the device of water flow in the stem, mainly by trunk (1), annular recess (2), aqueduct (3), electromagnetism tipping bucket watermeter (4), double-decker collection cylinder (5), single-chip data acquisition device (6), insulation can (7), water storage cylinder (8) forms, polyurethane plastics pipe semicircle is sliced off in a groove (2), be wound on trunk (1) by the angles of inclination of 30 °, cement with glass cement, it is characterized in that digging a duck eye at polyurethane ring-type bottom portion of groove is connected with the bevel of aqueduct (3) one end, the other end of aqueduct (3) enters the electromagnetism tipping bucket watermeter (4) on double-decker collection cylinder (5) upper strata, the electronic contact of electromagnetism tipping bucket watermeter (4) connects single-chip data acquisition device (6), bottom is communicated with water storage cylinder (8), single-chip data acquisition device (6) is placed in insulation can (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520574836.2U CN204988385U (en) | 2015-08-04 | 2015-08-04 | Device of trunk stemflow volume is collected, measured |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520574836.2U CN204988385U (en) | 2015-08-04 | 2015-08-04 | Device of trunk stemflow volume is collected, measured |
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| Publication Number | Publication Date |
|---|---|
| CN204988385U true CN204988385U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520574836.2U Expired - Fee Related CN204988385U (en) | 2015-08-04 | 2015-08-04 | Device of trunk stemflow volume is collected, measured |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769229A (en) * | 2016-12-12 | 2017-05-31 | 桂林理工大学 | Trunk runoff automatic energy saving detects acquisition system |
| CN109655121A (en) * | 2019-02-28 | 2019-04-19 | 江西师范大学 | Wrapping type navel orange stem flow measuring device with protection structure |
| CN110736515A (en) * | 2019-11-01 | 2020-01-31 | 中国科学院华南植物园 | trunk runoff automatic measuring device |
| CN111538111A (en) * | 2020-04-28 | 2020-08-14 | 天津师范大学 | System for observing hydrological dynamic process of next rainfall at single shrub plant scale |
| CN113405623A (en) * | 2021-06-29 | 2021-09-17 | 内蒙古自治区林业科学研究院 | Integrated check out test set of forest hydrology |
-
2015
- 2015-08-04 CN CN201520574836.2U patent/CN204988385U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769229A (en) * | 2016-12-12 | 2017-05-31 | 桂林理工大学 | Trunk runoff automatic energy saving detects acquisition system |
| CN109655121A (en) * | 2019-02-28 | 2019-04-19 | 江西师范大学 | Wrapping type navel orange stem flow measuring device with protection structure |
| CN109655121B (en) * | 2019-02-28 | 2020-07-31 | 江西师范大学 | Wrapping type navel orange stem flow measuring device with protection structure |
| CN110736515A (en) * | 2019-11-01 | 2020-01-31 | 中国科学院华南植物园 | trunk runoff automatic measuring device |
| CN110736515B (en) * | 2019-11-01 | 2024-05-31 | 中国科学院华南植物园 | Automatic measuring device for tree trunk runoff |
| CN111538111A (en) * | 2020-04-28 | 2020-08-14 | 天津师范大学 | System for observing hydrological dynamic process of next rainfall at single shrub plant scale |
| CN113405623A (en) * | 2021-06-29 | 2021-09-17 | 内蒙古自治区林业科学研究院 | Integrated check out test set of forest hydrology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20180804 |
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| CF01 | Termination of patent right due to non-payment of annual fee |