CN202928916U - Device for detecting water absorption amount and water consumption of plant based on communicating vessel mode - Google Patents
Device for detecting water absorption amount and water consumption of plant based on communicating vessel mode Download PDFInfo
- Publication number
- CN202928916U CN202928916U CN 201220638672 CN201220638672U CN202928916U CN 202928916 U CN202928916 U CN 202928916U CN 201220638672 CN201220638672 CN 201220638672 CN 201220638672 U CN201220638672 U CN 201220638672U CN 202928916 U CN202928916 U CN 202928916U
- Authority
- CN
- China
- Prior art keywords
- plant
- container
- water
- electronic balance
- water consumption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Cultivation Of Plants (AREA)
Abstract
The utility model discloses a device for detecting the water absorption amount and the water consumption of a plant based on a communicating vessel mode. A first container and a second container which are used for accommodating nutrient solutions essential to growth of the plant are respectively placed on a first electronic balance and a second electronic balance; the bottoms of the first container and the second container are connected with each other through a connection rubber pipe to form a communicating vessel; the tops of the first container and the second container are respectively sealed by a first sealing material and a second sealing material; the plant to be detected is inserted into the second container through the second sealing material; and the two balances are connected with a personal computer (PC) through data wires. The two containers are sealed, so that water can be only dissipated through transpiration of the plant to be detected; and the balances are used for weighing changes of weights of the two containers. By the device, water absorption and water consumption of the plant can be distinguished and can be calculated in real time; and the device can be used as a calibration device for other researched plant water measurement methods.
Description
Technical field
The utility model relates to a plant water absorbing capacity and water consumption pick-up unit, especially relates to a kind of plant water absorbing capacity based on the linker mode and the pick-up unit of water consumption.
Background technology
The growth of plant be unable to do without water, and water circulates in plant-atmosphere-soil, has guaranteed on the one hand the vital movement of plant, has kept ecological balance and development, is also the result of vital movement on the other hand.The trans-utilization of Soil Water and regulation and control are as the basis, take plant as core take soil-plant-atmosphere Continuum (SPAC).Plant absorbs moisture from soil, the moisture in plant is lost in atmosphere with gaseous state again simultaneously---and transpiration, transpiration are the main consumption wayses of the moisture of plant, and the moisture of plant absorbing is lost in atmosphere by transpiration more than 99%.
Transpiration not only is subjected to the impact of external environmental condition, but also is subjected to the regulation and control of plant itself, so it is a kind of physiology course of complexity.Boyer points out that the water flow in plant is subject to the impact of several effects simultaneously.On daytime, transpiration occupies leading position, and a small amount of water is supplied with the growth of cell, metabolism and bast transportation.In the time of night, transpiration is atrophy gradually, and the Water Transportation that occupies non-dominant position daytime has occupied main status at night.
Has certain water storage function in plant, namely store the moisture of some in the body of plant, when daytime, rising beginning strengthened gradually, plant is at first with the water that stores in body, be used for transpiration, the phenomenon that will occur dewatering like this is then under the effect of transpiration pull, root just begins to absorb moisture, and the moisture of absorption is used for dehydration phenomenon rising and the alleviation plant.At night, opposite phenomenon occurs, because the weakening of transpiration, the storage water in plant can increase.Under normal circumstances, the tissue dewatering in the plant body-suction alternately occurs, and goes round and begins again.
The water activity of plant can be described with a formula:
U+T=G+H
U represents the water absorbing capacity of plant, and T represents the water consumption of plant, and G represents the growth water of plant, and H represents dehydration (rehydration) water of plant.
This formula table understands the moisture dynamic changing process of plant.The water consumption of the suction of plant root and plant (transpiration) is two kinds of nonsynchronous Water Transport states as can be seen from the above analysis, the water absorbing capacity of plant needs not be equal to the water consumption of plant, because also have certain storage of water to participate in the Water Cycle activity in plant.The water consumption at night that it has been generally acknowledged that plant is zero, but exists equally plant root suction, the rehydration that the moisture that absorbs is mainly used in organizing and growth needs night.
How above-mentioned variable is measured, for the Water Physiology process of understanding crop, great help is arranged, now to the assay method of plant moisture---the Weighing Lysimeter method can only detect the moisture reduction in the integral body that Plants and Soils forms, this method has just been measured whole moisture reduction, and can't measure whole interior water transport amount, namely can't answer the transportation of moisture in the soil and plant body and shift.Therefore can't reach the purpose that above-mentioned variable is distinguished.
Summary of the invention
The purpose of this utility model is to provide a kind of plant water absorbing capacity based on the linker mode and the pick-up unit of water consumption, can distinguish in real time and detect plant water absorbing capacity and water consumption.
For achieving the above object, the technical solution adopted in the utility model is:
The utility model comprises the first container, second container, the first electronic balance, the second electronic balance, the first encapsulant, the second encapsulant, connection rubber tube, data line and PC computing machine; Be placed with respectively the first container and the second container of the nutrient solution that holds the plant strain growth needs on the first electronic balance, the second electronic balance, the first container and second container bottom employing connection rubber tube connect to form linker, the top of the first container, second container seals with the first encapsulant and the second encapsulant respectively, plant to be measured inserts in second container through the second encapsulant, by data line, two balances is connected with the PC computing machine.
The beneficial effect that the utlity model has is:
1, the utility model can detect water absorbing capacity and the water consumption of plant simultaneously, and these two kinds of activities that act on the plant Water Physiology are detected respectively.Avoid the existing lysimeter of weighing, can only detect water consumption, can't detect the water transport problem that water absorbing capacity is brought.
2, device of the present utility model is connected with computing machine by data line, is convenient to realize long data acquisition, can observe for a long time the workload when having alleviated data acquisition to the research of plant.
3, by the program of computing machine, can adjust the frequency acquisition to electronic balance, computing method etc. are carried out the adjustment of System Dependent parameter.Thereby obtain more accurate plant suction water consumption state variation.
4, the utility model can be for detection of Water Transportation and the Water Physiology activity of plant, and the method adopts high precision balance (0.01 gram) simultaneously, and sensitivity and accuracy are very high, can be used for the calibration steps that other detect the method for plant water consumption.
Description of drawings
Fig. 1 is structure principle chart of the present utility model.
Fig. 2 is result of implementation figure of the present utility model.
In figure: 1, the first container, 2, second container, the 3, first electronic balance, the 4, second electronic balance, the 5, first encapsulant, the 6, second encapsulant, 7, plant to be measured, 8, connection rubber tube, 9, data line, 10, the PC computing machine.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, the utility model comprises the first container 1, second container 2, the first electronic balance 3, the second electronic balance 4, the first encapsulant 5, the second encapsulant 6, connection rubber tube 8, data line 9 and PC computing machine 10; Be placed with respectively the first container 1 and the second container 2 of the nutrient solution that holds the plant strain growth needs on the first electronic balance 3, the second electronic balance 4, the first container 1 and second container 2 bottoms employing connection rubber tubes 8 connect to form linker, the top of the first container 1, second container 2 seals with the first encapsulant 5 and the second encapsulant 6 respectively, plant 7 to be measured inserts in second container 2 through the second encapsulant 6, by data line 9, two balances is connected with PC computing machine 10.
Couple together with the bottom of connection rubber tube with two containers, consist of linker, the nutrient solution that adds the plant strain growth needs in the linker, plant to be measured 7 is put in second container 2, the top of two containers seals by encapsulant, plant and linker to be measured form a whole, and moisture can only scatter and disappear by the transpiration of plant to be measured in this integral body.The PC computing machine just obtains the real-time weight change of two electronic balances by data line, the weight change algebraic sum of two electronic balances is weight reductions of whole device, and this reduction is exactly the water consumption of plant.
The water sorption of plant can make the water surface of the first container 1, second container 2 descend, if the moisture of plant root absorption is stored in the plant body, and when being not used in transpiration, the weight of the first electronic balance 3 can reduce, and the weight of the second electronic balance 4 increases; Although the weight of the second electronic balance 4 is to have increased, but second container 2 because with the first container 1 be linker, so the liquid level of second container 2 is to have descended, and the slippage of second container 2 is identical with the slippage of the first container 1, moisture is transferred to plant to be measured 7 from the first container 1, second container 2, and the general assembly (TW) of two electronic balances does not change.When plant suction and water consumption exist simultaneously, the moisture that is absorbed by plant in the first container 1 can be read by the first electronic balance 3, the moisture that is absorbed by plant in second container 2 need to by the water yield of the first container 1 minimizing and the liquid level area of the first container 1 and second container 2, calculate with formula:
If the weight change of the first electronic balance 3 is △ W1, the variation △ W2 of the second electronic balance 4, S1, S2 are the liquid level areas of the first container 1, second container 2 correspondences.
The water consumption of plant is:
T=△W2+△W1；
The water absorbing capacity of plant is:
U=△W1×（1+S2/S1）；
The great advantage of the method and device is exactly to distinguish the water consumption of plant and the water absorbing capacity of plant.And calculate in real time moisture absorption and the water consumption of plant.Can absorb water for a long time to plant-mensuration of water consumption by computing machine.
Experimental provision and data instance with on November 17th, 2012:
In experiment, the profile of two containers used is cylindrical, its inside diameter size 70mm.Plant is placed in second container 2, and the diameter stem of plant is 13mm, so: the liquid level area of container 1: S1=3846.50
, the liquid level area of second container 2: S2=3846.5-153.86=3692.64
Two containers since the weight changing curve of 11 o'clock on the 17th as shown in Figure 2, fine rule in figure is the weight changing curve that is inserted with the second container 2 of plant, thick line is the weight changing curve of the first container 1, and the curve in figure has reflected that the water absorbing capacity of plant and water consumption are asynchronous.
Arrange out table 1 according to the partial data in test, the data in table have been indicated electronic balance 3 of different periods first, the second electronic balance 4 data variation amounts that began in 11 o'clock on the 17th, and calculate water absorbing capacity and transpiration rate.
Table 1: the electronic balance 3 of different periods first that began in 11 o'clock on the 17th, the second electronic balance 4 data variation scale lattice
| Time period | △W1（g） | △W2（g） | U（g） | T（g） |
| 11：00-12：00 | -0.25 | -2.2 | -0.49 | -2.45 |
| 12：00-13：00 | -0.36 | -2.8 | -0.7056 | -3.16 |
| 13：00-14：00 | -0.55 | -2.35 | -1.078 | -2.9 |
| 14：00-15：00 | -0.56 | -1.53 | -1.0976 | -2.09 |
| 15：00-16：00 | -0.55 | -0.62 | -1.078 | -1.17 |
| 16：00-17：00 | -0.47 | 0.09 | -0.9212 | -0.38 |
| 17：00-18：00 | -0.35 | 0.24 | -0.686 | -0.11 |
| 18：00-19：00 | -0.31 | 0.23 | -0.6076 | -0.08 |
| 19：00-20：00 | -0.25 | 0.18 | -0.49 | -0.07 |
| 20：00-21：00 | -0.26 | 0.19 | -0.5096 | -0.07 |
| 21:00-22:00 | -0.22 | 0.2 | -0.4312 | -0.02 |
| 22:00-23:00 | -0.24 | 0.15 | -0.4704 | -0.09 |
| 23:00-24:00 | -0.25 | 0.15 | -0.49 | -0.1 |
Can find out from experimental data: this device can be distinguished water consumption and the water absorbing capacity of plant.By computing machine can absorb water to plant-water consumption measures for a long time.
Claims (1)
1. one kind based on the plant water absorbing capacity of linker mode and the pick-up unit of water consumption, it is characterized in that: comprise the first container (1), second container (2), the first electronic balance (3), the second electronic balance (4), the first encapsulant (5), the second encapsulant (6), connection rubber tube (8), data line (9) and PC computing machine (10), the first electronic balance (3), be placed with respectively the first container (1) and the second container (2) of the nutrient solution that holds the plant strain growth needs on the second electronic balance (4), the first container (1) and second container (2) bottom employing connection rubber tube (8) connect to form linker, the first container (1), the top of second container (2) uses respectively the first encapsulant (5) and the second encapsulant (6) to seal, plant to be measured (7) inserts in second container (2) through the second encapsulant (6), by data line (9), two balances are connected with PC computing machine (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638672 CN202928916U (en) | 2012-11-28 | 2012-11-28 | Device for detecting water absorption amount and water consumption of plant based on communicating vessel mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638672 CN202928916U (en) | 2012-11-28 | 2012-11-28 | Device for detecting water absorption amount and water consumption of plant based on communicating vessel mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202928916U true CN202928916U (en) | 2013-05-08 |
Family
ID=48218867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220638672 Expired - Fee Related CN202928916U (en) | 2012-11-28 | 2012-11-28 | Device for detecting water absorption amount and water consumption of plant based on communicating vessel mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202928916U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944492A (en) * | 2012-11-28 | 2013-02-27 | 浙江大学 | Method and device for detection of plant water absorption and water consumption on basis of communicating vessel way |
| CN103499507A (en) * | 2013-09-13 | 2014-01-08 | 兰州大学 | Cavitation embolism simulation and hydraulic conductivity measurement instrument for plant branches |
| CN107917927A (en) * | 2017-11-21 | 2018-04-17 | 中国矿业大学(北京) | Monitor the method and experimental provision of rock soil medium Water Transport state |
-
2012
- 2012-11-28 CN CN 201220638672 patent/CN202928916U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944492A (en) * | 2012-11-28 | 2013-02-27 | 浙江大学 | Method and device for detection of plant water absorption and water consumption on basis of communicating vessel way |
| CN103499507A (en) * | 2013-09-13 | 2014-01-08 | 兰州大学 | Cavitation embolism simulation and hydraulic conductivity measurement instrument for plant branches |
| CN103499507B (en) * | 2013-09-13 | 2016-06-22 | 兰州大学 | The simulation of plants shoots air pocket thromboembolism and moisture conduction analyzer |
| CN107917927A (en) * | 2017-11-21 | 2018-04-17 | 中国矿业大学(北京) | Monitor the method and experimental provision of rock soil medium Water Transport state |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202928916U (en) | Device for detecting water absorption amount and water consumption of plant based on communicating vessel mode | |
| CN103125204A (en) | Grain mass measurement device and measurement method of combine harvester | |
| CN202126378U (en) | Soil moisture transpiration and leakage measurement device | |
| CN101464181B (en) | Quantitative weighing system based on buoyant force weighing sensing principle | |
| CN101836562B (en) | Index method for diagnosing degree of water shortage of crop | |
| CN201926604U (en) | Intelligent concentration meter | |
| CN100451595C (en) | Omnibearing sand grain creeping and wind speed and wind direction dynamic collecting instrument | |
| CN202631043U (en) | Formation gas volume measurement device of flexible package lithium ion battery | |
| CN203216891U (en) | Soil nutrient sensor in solar greenhouse | |
| CN102944492A (en) | Method and device for detection of plant water absorption and water consumption on basis of communicating vessel way | |
| CN201041503Y (en) | Liquid level detecting device | |
| CN202471204U (en) | Tandem type dynamic/static intelligent weighing platform | |
| CN102759609B (en) | Humidity-controllable automatic evapotranspiration and infiltration measuring system | |
| CN204269644U (en) | A kind of unsaturated soil water migration rule proving installation of matric potential impact | |
| CN100580391C (en) | Weighting type calibration method of electromagnetic flowmeter | |
| CN207036594U (en) | Four-way lysimeter | |
| CN203203846U (en) | Collecting device of volatized ammonia in plant leaf | |
| CN202304946U (en) | Sewer liquid level sensor | |
| CN208790371U (en) | Asphalt mixing plant powder material level metering device | |
| Yin | On the development of precision seeder intelligent monitoring system controlled by single-chip microcomputer | |
| CN206269956U (en) | A kind of encapsulating structure of the pressure sensor for being easy to place | |
| CN107063519A (en) | A kind of adjustable piezoelectric type hexa-dimensional force sensor of load sharing | |
| CN205208140U (en) | High accuracy liquid nitrogen liquid level measurement system | |
| CN204495428U (en) | A kind of water level detecting system | |
| CN207391429U (en) | A kind of accurate feed supplement metering device of large size fermentation system |
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: 20130508 Termination date: 20141128 |
|
| EXPY | Termination of patent right or utility model |