CN203232160U - Measuring device for litter rainfall interception - Google Patents
Measuring device for litter rainfall interception Download PDFInfo
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- CN203232160U CN203232160U CN2012207416508U CN201220741650U CN203232160U CN 203232160 U CN203232160 U CN 203232160U CN 2012207416508 U CN2012207416508 U CN 2012207416508U CN 201220741650 U CN201220741650 U CN 201220741650U CN 203232160 U CN203232160 U CN 203232160U
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- litter
- determinator
- funnel
- mozzle
- net
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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Abstract
The utility model discloses a measuring device for litter rainfall interception; the device specifically comprises a litter carrying net, a funnel, a honeycomb duct, a mass flow barrel, a first weighing apparatus and a second weighing apparatus; the litter carrying net is completely built above an upper port of the funnel; a diameter of the litter carrying net is equal to an upper port diameter of the funnel; a lower port of the funnel is connected with one end of the honeycomb duct; the other end of the honeycomb duct is placed in the mass flow barrel; the funnel is placed on the first weighing apparatus through a support apparatus; the mass flow barrel is placed on the second weighing apparatus; the measuring device for litter rainfall interception can ensure that an original structure of a litter layer is not damaged, simultaneously ensures that a final speed of the rainfall falling on the litter complies with real condition, so measured interception amount is more accurate, and continuous observation can be carried out.
Description
Technical field
The utility model relates to litter water regime research field, relates in particular to a kind of litter and cuts the determinator of holding rainfall.
Background technology
The litter layer is the important component part of hydrology cyclic process, is playing important moisture and energy exchange effect between sylvan life and the face of land.The litter layer is covered on the face of land, can cut the precipitation of holding about 15%-50%, cut a precipitation part of holding and infiltrate soil, another part is evaporated in the air, be evaporated to wherein that airborne this part is fairly obvious to the reallocation effect of precipitation, in the forest hydrology cyclic process, play the part of very important effect.Litter is cut the judgment criteria of holding the rainfall ability maximum interception and minimum cut allowance, and wherein maximum interception is that litter is constantly held back rainfall in the rainfall, cuts the quantity of precipitation of holding when rainfall finishes moment, comprises gravity water.The part water yield in this part quantity of precipitation is oozed under still continuing afterwards, participates in infiltrating soil and runoff.The rainfall that accurately is defined as of minimum cut allowance finishes the interception of back when no longer dripping to litter, does not comprise gravity water, and this part precipitation of holding back can only be transported in the air by evaporation at last.
In the prior art, cut the mensuration research of holding rainfall amount about the litter layer and mainly contain two kinds of methods:
1. in the laboratory, measure
The litter sample that to gather from forest is taken back the laboratory, and the water cut of mensuration litter than the variation before the rainfall, records evaporation capacity according to the alternation of wetting and drying curve, in prediction on such basis the interception of litter in the rainfall after rainfall.The drawback of this assay method has been to destroy the complete original state structure of litter, and causes the loss of the top layer water yield in the process of getting the litter sample easily, causes bigger error to experimental result.
2. testing the forest farm in the open air measures
Under natural rainfall or the artificial rainfall condition, litter is compiled to the determinator of being made up of drum and nylon wire, utilized rainfall amount and the difference of the amount of penetrating to measure the interception of litter.Though this assay method can record maximum interception (or instantaneous interception) and minimum cut allowance (or final interception) in the rainfall, in measuring process, changed the basic existing way of litter, destroyed the original state structure of litter.Simultaneously, this assay method can promote litter, namely hits litter after making raindrop speed not accelerate to final speed, is not inconsistent fully with strike situation under the current conditions.
As seen, the above-mentioned two kinds of determinators in the prior art and method all can not obtain maximum interception and minimum cut allowance comparatively accurately.
The utility model content
(1) technical matters that will solve
The technical problems to be solved in the utility model is, at above-mentioned defective, how cut in the process of holding rain test carrying out litter, can either keep the original state structure of litter layer not to be destroyed, can guarantee that again raindrop terminal velocity and real-world situation meet fully, and then Continuous Observation.
(2) technical scheme
For addressing the above problem, the utility model provides a kind of litter to cut the determinator of holding rainfall, and described determinator comprises:
Litter is accepted net, funnel, mozzle, afflux tube, bracing or strutting arrangement, first meausring apparatus and second meausring apparatus;
Described litter accepts that net is complete to be taken on described funnel suitable for reading, and the described litter diameter of accepting net equals the back cut diameter of described funnel;
One termination of the end opening of described funnel and described mozzle is logical;
The other end of described mozzle places described afflux tube;
Described funnel is placed on described first meausring apparatus by bracing or strutting arrangement, and described afflux tube is placed on described second meausring apparatus.
Concrete, described determinator places in the mensuration space of digging on the ground, forest land that holds described determinator, and described litter is accepted by division board described mensuration space being isolated with outer of net on every side.
Concrete, described litter is accepted net, described division board and ground and is maintained at the same horizontal plane.
Concrete, described determinator also comprises: the mozzle support, the described mozzle of described mozzle stent support is also born the weight of described mozzle.
Concrete, the end that described mozzle connects funnel is higher than an end that places described afflux tube.
Concrete, it is characterized in that, described litter accept net pore size so that the rainwater infiltrate be as the criterion.
(3) beneficial effect
The utility model proposes a kind of litter and cut the determinator of holding rainfall, by build one more with the actual determinator that conforms to, guarantee that litter layer original state structure is not destroyed, guarantee that simultaneously the final speed that raindrop drop on the litter conforms to real-world situation, make that the interception that records is more accurate, can also carry out Continuous Observation.
Description of drawings
Fig. 1 cuts the determinator one-piece construction synoptic diagram of holding rainfall for a kind of litter of the utility model;
The litter that Fig. 2 cuts in the determinator of holding rainfall for a kind of litter of the utility model is accepted the net synoptic diagram;
Fig. 3 is that a kind of litter of the utility model cuts the funnel synoptic diagram in the determinator of holding rainfall;
Fig. 4 is that a kind of litter of the utility model cuts the bracing or strutting arrangement synoptic diagram in the determinator of holding rainfall.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
Provide a kind of litter to cut the determinator of holding rainfall among the utility model embodiment, one-piece construction specifically comprises as shown in Figure 1:
Litter is accepted net 101, funnel 102, mozzle 103, afflux tube 104, bracing or strutting arrangement 105, first meausring apparatus 1061 and second meausring apparatus 1062.
Wherein, litter accepts that net 101 is complete to be taken on funnel 102 suitable for reading, and collecting the natural litter that comes off, the diameter that litter is accepted net 101 equals the back cut diameter of funnel 102.
One termination of the end opening of funnel 102 and mozzle 103 is logical, and the other end of mozzle 103 places afflux tube 104, and funnel 102 is placed on first meausring apparatus 1061 by bracing or strutting arrangement 105, and afflux tube 104 is placed on second meausring apparatus 1062.
In the present embodiment, bracing or strutting arrangement 105 converts by a round plastic bucket, diameter equates with the diameter of funnel 102, be 60cm, the height of funnel is 30cm, the high 100cm of Plastic Drum is at the osculum of opening a diameter 3cm apart from the position at 40cm suitable for reading place, in order to pass through mozzle.Mozzle 103 adopts the pipe of PVC material, extends to by circular hole in the afflux tube 104 of round plastic bucket.The tube wall of mozzle 103 is avoided contacting with the plastic cylinder wall, in order to avoid Plastic Drum is had compression weight, causes the weighing device under the Plastic Drum to measure inaccurate.
The mechanism that litter is accepted net 101 as shown in Figure 2, funnel 102 as shown in Figure 3, plastic cylinder is as shown in Figure 4.
Determinator places in the mensuration space A of the held determinator that digs on the ground, forest land, and litter accept net 101 around will measure space and outer isolation by division board 107, prevent that rainwater from dropping into the afflux tube 104 interior experimental results that influence.
Litter is accepted net 101, division board 107 is maintained at the same horizontal plane with ground.
Determinator also comprises: mozzle support 108, mozzle support 108 support mozzle 103 and bear the weight of mozzle 103.
The end that mozzle 103 connects funnel 102 is higher than an end that places afflux tube 104.
Litter accepts the pore size of net 101 so that the rainwater infiltrate is as the criterion, and pore size is not all different according to braided material and diameter, flows in the funnel but will make the rainwater of accepting accept net 101 through litter.
Before raining, the reading A of meausring apparatus 1061
1For plastic cylinder, funnel 102, litter are accepted the weight of net 101 and litter, the reading B of meausring apparatus 1062
1Weight for afflux tube 104; The reading A of meausring apparatus 1061 after raining
2For plastic cylinder, funnel 102, litter are accepted the minimum cut allowance of net 101, litter and litter, the reading B of meausring apparatus 1062
2For litter in the weight of afflux tube 104 and the rainfall cuts the amount of rainfall of holding, so the minimum cut allowance of litter is A
2-A
1, the maximum interception of litter is B
2-B
1
The determinator that the utility model provides cuts the rainfall amount of holding than litter before the rainfall after not only can measuring rainfall, can also measure maximum interception and the minimum cut allowance of per minute.
By using the said determination device, guarantee that litter layer original state structure is not destroyed, guarantee that simultaneously the final speed that raindrop drop on the litter conforms to real-world situation, make that the interception that records is more accurate, can also carry out Continuous Observation.
Above embodiment only is used for explanation the utility model; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (6)
1. a litter cuts the determinator of holding rainfall, it is characterized in that, described determinator specifically comprises:
Litter is accepted net, funnel, mozzle, afflux tube, bracing or strutting arrangement, first meausring apparatus and second meausring apparatus;
Described litter accepts that net is complete to be taken on described funnel suitable for reading, and the described litter diameter of accepting net equals the back cut diameter of described funnel;
One termination of the end opening of described funnel and described mozzle is logical;
The other end of described mozzle places described afflux tube;
Described funnel is placed on described first meausring apparatus by bracing or strutting arrangement, and described afflux tube is placed on described second meausring apparatus.
2. determinator as claimed in claim 1, it is characterized in that, described determinator places in the mensuration space of digging on the ground, forest land that holds described determinator, and described litter is accepted by division board described mensuration space being isolated with outer of net on every side.
3. determinator as claimed in claim 2 is characterized in that, described litter is accepted net, described division board and ground and is maintained at the same horizontal plane.
4. determinator as claimed in claim 1 is characterized in that, described determinator also comprises: the mozzle support, the described mozzle of described mozzle stent support is also born the weight of described mozzle.
5. determinator as claimed in claim 1 is characterized in that, the end that described mozzle connects funnel is higher than an end that places described afflux tube.
6. determinator as claimed in claim 1 is characterized in that, described litter accept net pore size so that the rainwater infiltrate be as the criterion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207416508U CN203232160U (en) | 2012-12-28 | 2012-12-28 | Measuring device for litter rainfall interception |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207416508U CN203232160U (en) | 2012-12-28 | 2012-12-28 | Measuring device for litter rainfall interception |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203232160U true CN203232160U (en) | 2013-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207416508U Expired - Fee Related CN203232160U (en) | 2012-12-28 | 2012-12-28 | Measuring device for litter rainfall interception |
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| CN (1) | CN203232160U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018795A (en) * | 2012-12-28 | 2013-04-03 | 北京林业大学 | Testing device for rainfall intercepted by litter |
| CN104808262A (en) * | 2015-05-20 | 2015-07-29 | 东北林业大学 | Long-term forest eco-hydrology water yield automation dynamic measurement method and device |
-
2012
- 2012-12-28 CN CN2012207416508U patent/CN203232160U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018795A (en) * | 2012-12-28 | 2013-04-03 | 北京林业大学 | Testing device for rainfall intercepted by litter |
| CN104808262A (en) * | 2015-05-20 | 2015-07-29 | 东北林业大学 | Long-term forest eco-hydrology water yield automation dynamic measurement method and device |
| CN104808262B (en) * | 2015-05-20 | 2017-03-22 | 东北林业大学 | Long-term forest eco-hydrology water yield automation dynamic measurement method and device |
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| 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: 20131009 Termination date: 20141228 |
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| EXPY | Termination of patent right or utility model |