CN103076250A - Device and method for measuring canopy interception of single small arbor - Google Patents
Device and method for measuring canopy interception of single small arbor Download PDFInfo
- Publication number
- CN103076250A CN103076250A CN2012105838938A CN201210583893A CN103076250A CN 103076250 A CN103076250 A CN 103076250A CN 2012105838938 A CN2012105838938 A CN 2012105838938A CN 201210583893 A CN201210583893 A CN 201210583893A CN 103076250 A CN103076250 A CN 103076250A
- Authority
- CN
- China
- Prior art keywords
- canopy
- dungarunga
- platform balance
- rain cover
- flowerpot
- 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.)
- Granted
Links
Images
Landscapes
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
The invention provides a method for measuring canopy interception of a single small arbor. The method comprises the following steps: S1, measuring the thickness of the small arbor canopy, and dividing the canopy into multiple layers according to the thickness; S2, measuring the relative structure parameters of the small arbor canopy, putting a flowerpot planted with the small arbor on a platform scale which is turned on, and arranging a rain cover around the platform scale and the flowerpot; S3, starting to rain, and recording the reading numbers of the platform scale according to preset time intervals; S4, stopping raining, and measuring the moisture of branches and leaves of the canopy; and when the moisture of branches and leaves of the canopy after raining is the same as that before raining, cutting off the lowest layer of the canopy, and returning to the step S2 to continue execution; and S5, computing the interception amount of each layer of the small arbor canopy according to the recorded reading numbers of the platform scale. The method for measuring the canopy interception of the single small arbor can accurately, directly and dynamically research the moisture interception amounts and the transportation rules of different canopy structures and canopy layers. The invention further provides a device for measuring the canopy interception of the single small arbor.
Description
Technical field
The present invention relates to hydrologic cycle field, forest land, particularly a kind of individual plant dungarunga canopy is held back measurement mechanism and method.
Background technology
Canopy is the primary contact layer of vegetation and precipitation as special underlying surface, and it has important effect to Rainfall interception and transmission reallocation function.At present, the arbor canopy is held back the research method method of indirect observations that adopt based on principle of water balance of characteristic more, directly determine the outer rainfall of woods and Lin Nei penetrates rain with devices such as rain container or rain recorders, measure again stem flow, after deducting with the former both.But because the unevenness of storey, this method relates to the selection on sample ground and the problems such as laying of observation instrument, and the experimental data of obtaining is not necessarily all representative, and needs long-time observation.The method of direct observation that proposes in the prior art in addition such as ray attenuation method, cantilever deflection method and artificial dampening, exists also that expense is high, conversion complexity and error is large and needs are assisted the shortcomings such as computing information.
Above research contents is research object mainly with whole canopy, and all is to analyze long entrapment characteristics of lasting under the precipitation, does not relate to canopy internal moisture transmission feature in the short diachronic strong precipitation process; In view of the in the past defective of test method and the shortage of content of the test, be necessary to develop a kind of novel canopy and hold back measurement mechanism and method, to remedy the deficiencies in the prior art.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of individual plant dungarunga canopy and hold back measurement mechanism and method, the moisture that can more accurate, directly, dynamically study different crown structures and canopy layering cuts to be held and transmits rule, promotes canopy Hydrological Functions research on mechanism.
For realizing above purpose, the present invention is achieved by the following technical programs:
A kind of individual plant dungarunga canopy is held back measuring method, may further comprise the steps:
S1, measure the thickness of dungarunga canopy, and according to this thickness described canopy is divided into multilayer;
The dependency structure parameter of S2, measurement dungarunga canopy has the flowerpot of dungarunga to place on the platform balance of unlatching cultivation, and around described platform balance and flowerpot rain cover is set;
S3, beginning rainfall, at preset timed intervals interval record platform balance reading;
S4, stop rainfall, and measure the branches and leaves wettability of described canopy; When the described canopy branches and leaves wettability after the rainfall is identical with canopy branches and leaves wettability before the rainfall, cuts the bottom of described canopy, and return step S2 and continue to carry out;
S5, according to the platform balance reading of record, calculate the interception of every layer of described dungarunga canopy.
Preferably, described step S2 further comprises leaf area index, canopy branches and leaves wettability, canopy thickness and the canopy planimetric area of measuring canopy.
Preferably, the upper surface of described rain cover is the inclined-plane, and this upper surface is provided with the opening that passes through for described dungarunga stem, and the width of this opening is decided according to the diameter of described dungarunga stem.
Preferably, the longitudinal section of described rain cover is right-angled trapezium, the upper bottom side length of described right-angled trapezium greater than the table surface height of platform balance and flowerpot height and, the height of the length of side less than described platform balance support column of going to the bottom of described right-angled trapezium.
Preferably, described step S2 comprises that further opening with described rain cover upper surface after described dungarunga stem passes through, seals.
The present invention also provides a kind of individual plant dungarunga canopy to hold back measurement mechanism, includes: plant flowerpot, platform balance and rain cover that dungarunga is arranged; Described cultivation has the flowerpot of dungarunga to place on the described platform balance, is provided with described rain cover around described platform balance and the flowerpot.
Preferably, the upper surface of described rain cover is the inclined-plane, and this upper surface is provided with the opening that passes through for described dungarunga stem, and the width of this opening is decided according to the diameter of described dungarunga stem.
Preferably, the longitudinal section of described rain cover is right-angled trapezium, the upper bottom side length of described right-angled trapezium greater than the table surface height of platform balance and flowerpot height and, the height of the length of side less than described platform balance support column of going to the bottom of described right-angled trapezium.
Preferably, the upper surface open of described rain cover with described dungarunga stem by rear sealing.
The present invention is by providing a kind of individual plant dungarunga canopy to hold back measurement mechanism and method, and the moisture that can more accurate, directly, dynamically study different crown structures and canopy layering cuts the amount of holding and transmission rule, promotes canopy Hydrological Functions research on mechanism; The present invention can also draw the variation of canopy interception in the minimum period according to experimenter's needs, and is time saving and energy saving; Simultaneously, in view of the mobility of potted plant nursery stock, the present invention is outdoor and indoor all applicable.
Description of drawings
Fig. 1 is the process flow diagram of one embodiment of the invention;
Fig. 2 is rain cover schematic diagram in one embodiment of the invention;
Fig. 3 is the system and device figure of one embodiment of the invention.
Embodiment
Regard to down a kind of individual plant dungarunga canopy proposed by the invention and hold back measurement mechanism and method, describe in detail in conjunction with the accompanying drawings and embodiments.
Such as Fig. 1, shown in Figure 3, the invention provides a kind of individual plant dungarunga canopy and hold back measurement mechanism and method, may further comprise the steps:
S1, measure the thickness of dungarunga canopy, and according to this thickness described canopy is divided into multilayer;
The dependency structure parameter of S2, measurement dungarunga canopy has the flowerpot 1 of dungarunga to place on the platform balance 2 of unlatching cultivation, and around described platform balance 2 and flowerpot 1 rain cover 3 is set; The range of described platform balance 2 and precision must satisfy the weight of dungarunga; The size of described rain cover 3 should be bigger, can not touch platform balance 2 and flowerpot 1, prevents that pressure is delivered to platform balance 2, affects measurement data;
S3, beginning rainfall, at preset timed intervals interval record platform balance 2 readings;
S4, stop rainfall, and measure the branches and leaves wettability of described canopy; When the described canopy branches and leaves wettability after the rainfall is identical with canopy branches and leaves wettability before the rainfall, cuts the bottom of described canopy, and return step S2 and continue to carry out;
Adopt order from top to bottom that described dungarunga canopy is carried out successively beta pruning in the present embodiment, if adopt order from top to bottom, the input raininess was inconsistent when then each layer of canopy inputted raininess and do not had beta pruning after the beta pruning, can not extrapolate the interception of each layer of canopy.
S5, according to platform balance 2 readings of record, calculate the interception of every layer of described dungarunga canopy.
Preferably, described step S2 further comprises leaf area index, canopy branches and leaves wettability, canopy thickness and the canopy planimetric area of measuring canopy.
Preferably, the upper surface of described rain cover 3 is the inclined-plane, accumulates rainwater to the pressure of rain cover 3 with minimizing, and this upper surface is provided with the opening 4 that passes through for described dungarunga stem, and the width of this opening 4 is decided according to the diameter of described dungarunga stem.
Preferably, as shown in Figure 2, the longitudinal section of described rain cover 3 is right-angled trapezium, the upper bottom side length of described right-angled trapezium greater than table top 202 height of platform balance 2 and flowerpot 1 height and, the height of the length of side less than the support column 201 of described platform balance 2 of going to the bottom of described right-angled trapezium.
Preferably, the upper surface area of described rain cover 3 is greater than the area of the table top 202 of described platform balance 2.
Preferably, described step S2 comprises that further opening 4 with described rain cover 3 upper surfaces after described dungarunga stem passes through, seals; Can adopt plastic cement to bring upper surface open 4 after protection dungarunga stem passes through, prevent that rainwater from entering.
Described rain cover 3 is the iron sheet groove.
As shown in Figure 3, the present invention also provides a kind of individual plant dungarunga canopy to hold back measurement mechanism, includes: plant flowerpot 1, platform balance 2 and rain cover 3 that dungarunga is arranged; Described cultivation has the flowerpot 1 of dungarunga to place on the described platform balance 2, is provided with described rain cover 3 around described platform balance 2 and the flowerpot 1.
Preferably, the upper surface of described rain cover 3 is the inclined-plane, and this upper surface is provided with the opening 4 that passes through for described dungarunga stem, and the width of this opening 4 is decided according to the diameter of described dungarunga stem.
Preferably, the longitudinal section of described rain cover 3 is right-angled trapezium, the upper bottom side length of described right-angled trapezium greater than table top 202 height of platform balance 2 and flowerpot 1 height and, the height of the length of side less than described platform balance 2 support columns 201 of going to the bottom of described right-angled trapezium.
Preferably, the upper surface open 4 of described rain cover 3 with described dungarunga stem by rear sealing.
In the present embodiment; measure first the thickness of dungarunga canopy; and according to this thickness described canopy is divided into multilayer; be with Tu Tuo to be transplanted in the plastic flowerpot 1 dungarunga; after measuring the dependency structure parameter of canopy; place on the platform balance 2 of unlatching; the rain cover 3 of making is placed in around the table top 202 and flowerpot 1 of platform balance 2; described rain cover 3 can not contact with platform balance 2 and flowerpot 1; then protect the opening 4 of the rain cover 3 that stem passes with plastic adhesive tape, enter with rainwater-proof, check that electric wire connects and with platform balance 2 readings of opening make zero (the rear demonstration reading that makes zero is clean interception); the beginning rainfall; interval record platform balance 2 readings stop rainfall, and measure the branches and leaves wettability of described canopy at preset timed intervals; when the described canopy branches and leaves wettability after the rainfall is identical with canopy branches and leaves wettability before the rainfall; cut the bottom of described canopy, and return step S2 and continue to carry out, so repeatedly to the top layer of canopy; according to the reading of platform balance 2 records, calculate the interception of every layer of dungarunga canopy.
The present invention is by providing a kind of individual plant dungarunga canopy to hold back measurement mechanism and method, and the moisture that can more accurate, directly, dynamically study different crown structures and canopy layering cuts the amount of holding and transmission rule, promotes canopy Hydrological Functions research on mechanism; The present invention can also draw the variation of canopy interception in the minimum period according to experimenter's needs, and is time saving and energy saving; Simultaneously, in view of the mobility of potted plant nursery stock, the present invention is outdoor and indoor all applicable.
Above embodiment only is used for explanation the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; in the situation that do not break away from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (9)
1. an individual plant dungarunga canopy is held back measuring method, it is characterized in that, may further comprise the steps:
S1, measure the thickness of dungarunga canopy, and according to this thickness described canopy is divided into multilayer;
The dependency structure parameter of S2, measurement dungarunga canopy has the flowerpot of dungarunga to place on the platform balance of unlatching cultivation, and around described platform balance and flowerpot rain cover is set;
S3, beginning rainfall, at preset timed intervals interval record platform balance reading;
S4, stop rainfall, and measure the branches and leaves wettability of described canopy; When the described canopy branches and leaves wettability after the rainfall is identical with canopy branches and leaves wettability before the rainfall, cuts the bottom of described canopy, and return step S2 and continue to carry out;
S5, according to the platform balance reading of record, calculate the interception of every layer of described dungarunga canopy.
2. the method for claim 1 is characterized in that, described step S2 further comprises leaf area index, canopy branches and leaves wettability, canopy thickness and the canopy planimetric area of measuring canopy.
3. the method for claim 1 is characterized in that, the upper surface of described rain cover is the inclined-plane, and this upper surface is provided with the opening that passes through for described dungarunga stem, and the width of this opening is decided according to the diameter of described dungarunga stem.
4. method as claimed in claim 3, it is characterized in that, the longitudinal section of described rain cover is right-angled trapezium, the upper bottom side length of described right-angled trapezium greater than the table surface height of platform balance and flowerpot height and, the height of the length of side less than described platform balance support column of going to the bottom of described right-angled trapezium.
5. method as claimed in claim 4 is characterized in that, described step S2 comprises that further opening with described rain cover upper surface after described dungarunga stem passes through, seals.
6. an individual plant dungarunga canopy is held back measurement mechanism, it is characterized in that, includes: plant flowerpot, platform balance and rain cover that dungarunga is arranged; Described cultivation has the flowerpot of dungarunga to place on the described platform balance, is provided with described rain cover around described platform balance and the flowerpot.
7. device as claimed in claim 6 is characterized in that, the upper surface of described rain cover is the inclined-plane, and this upper surface is provided with the opening that passes through for described dungarunga stem, and the width of this opening is decided according to the diameter of described dungarunga stem.
8. device as claimed in claim 7, it is characterized in that, the longitudinal section of described rain cover is right-angled trapezium, the upper bottom side length of described right-angled trapezium greater than the table surface height of platform balance and flowerpot height and, the height of the length of side less than described platform balance support column of going to the bottom of described right-angled trapezium.
9. device as claimed in claim 8 is characterized in that, the upper surface open of described rain cover with described dungarunga stem by rear sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210583893.8A CN103076250B (en) | 2012-12-28 | 2012-12-28 | Method for measuring canopy interception of single small arbor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210583893.8A CN103076250B (en) | 2012-12-28 | 2012-12-28 | Method for measuring canopy interception of single small arbor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103076250A true CN103076250A (en) | 2013-05-01 |
| CN103076250B CN103076250B (en) | 2015-04-08 |
Family
ID=48152855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210583893.8A Active CN103076250B (en) | 2012-12-28 | 2012-12-28 | Method for measuring canopy interception of single small arbor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103076250B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728423A (en) * | 2014-01-20 | 2014-04-16 | 北京林业大学 | Device and method for measuring interception of grass canopy |
| CN109375236A (en) * | 2018-12-07 | 2019-02-22 | 福建农林大学 | A kind of forest canopy vertical structure rainfall slows down regular measuring method |
| CN110031918A (en) * | 2019-05-15 | 2019-07-19 | 西北农林科技大学 | A method of measurement arbor vegetation different canopy layers position penetrates rainfall |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201476824U (en) * | 2009-06-05 | 2010-05-19 | 兰州大学 | Grassland rainfall interception measuring device |
| CN203053809U (en) * | 2012-12-28 | 2013-07-10 | 北京林业大学 | Single small arbor canopy interception measuring device |
-
2012
- 2012-12-28 CN CN201210583893.8A patent/CN103076250B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201476824U (en) * | 2009-06-05 | 2010-05-19 | 兰州大学 | Grassland rainfall interception measuring device |
| CN203053809U (en) * | 2012-12-28 | 2013-07-10 | 北京林业大学 | Single small arbor canopy interception measuring device |
Non-Patent Citations (4)
| Title |
|---|
| G. HORMANN ET AL.: "Calculation and simulation of wind controlled canopy interception of a beech forest in Northern Germany", 《AGRICULTURAL AND FOREST METEOROLOGY》, vol. 79, no. 3, 30 April 1996 (1996-04-30), pages 131 - 148 * |
| 常学向等: "祁连山林区大气降水特征与森林对降水的截留作用", 《高原气象》, vol. 21, no. 3, 30 June 2002 (2002-06-30), pages 274 - 280 * |
| 王文等: "植物截留观测方法综述", 《河海大学学报（自然科学版）》, vol. 38, no. 5, 30 September 2010 (2010-09-30), pages 495 - 504 * |
| 裴铁璠等: "林冠分配降雨过程模拟与模型 Ⅰ.常雨强下穿透降雨、树干径流和林冠截留模型", 《林业科学》, vol. 32, no. 1, 31 January 1996 (1996-01-31), pages 1 - 10 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728423A (en) * | 2014-01-20 | 2014-04-16 | 北京林业大学 | Device and method for measuring interception of grass canopy |
| CN103728423B (en) * | 2014-01-20 | 2015-11-11 | 北京林业大学 | A kind of devices and methods therefor measuring grass hat interception |
| CN109375236A (en) * | 2018-12-07 | 2019-02-22 | 福建农林大学 | A kind of forest canopy vertical structure rainfall slows down regular measuring method |
| CN109375236B (en) * | 2018-12-07 | 2023-05-16 | 福建农林大学 | Method for determining rainfall slowing law of vertical structure of canopy of forest tree |
| CN110031918A (en) * | 2019-05-15 | 2019-07-19 | 西北农林科技大学 | A method of measurement arbor vegetation different canopy layers position penetrates rainfall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103076250B (en) | 2015-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Peters et al. | Quantification of uncertainties in conifer sap flow measured with the thermal dissipation method | |
| Kunert et al. | A revised hydrological model for the Central Amazon: The importance of emergent canopy trees in the forest water budget | |
| Domec et al. | Hydraulic redistribution of soil water by roots affects whole‐stand evapotranspiration and net ecosystem carbon exchange | |
| Baldocchi et al. | How plant functional-type, weather, seasonal drought, and soil physical properties alter water and energy fluxes of an oak–grass savanna and an annual grassland | |
| Roupsard et al. | Partitioning energy and evapo-transpiration above and below a tropical palm canopy | |
| Goyal | Management of drip/trickle or micro irrigation | |
| Fernández et al. | The use of sap flow measurements for scheduling irrigation in olive, apple and Asian pear trees and in grapevines | |
| Liang et al. | Contributions of competition and climate on radial growth of Pinus massoniana in subtropics of China | |
| Loustau et al. | Interception loss, throughfall and stemflow in a maritime pine stand. II. An application of Gash's analytical model of interception | |
| Gartner et al. | Sap flow of birch and Norway spruce during the European heat and drought in summer 2003 | |
| Ahmadi et al. | Partitioning rainfall into throughfall, stemflow, and interception loss in an oriental beech (Fagus orientalis Lipsky) forest during the growing season | |
| Attarod et al. | Needle-leaved trees impacts on rainfall interception and canopy storage capacity in an arid environment | |
| Xia et al. | Global patterns in net primary production allocation regulated by environmental conditions and forest stand age: A model‐data comparison | |
| Etzold et al. | Long‐term stem CO 2 concentration measurements in N orway spruce in relation to biotic and abiotic factors | |
| Stahl et al. | Influence of S easonal V ariations in S oil W ater A vailability on G as E xchange of T ropical C anopy T rees | |
| Dierick et al. | Water use characteristics of a bamboo species (Bambusa blumeana) in the Philippines | |
| Latte et al. | Growth partitioning within beech trees (Fagus sylvatica L.) varies in response to summer heat waves and related droughts | |
| Rana et al. | Tree transpiration in a multi-species Mediterranean garden | |
| Čermák et al. | Scots pine root distribution derived from radial sap flow patterns in stems of large leaning trees | |
| CN103076250B (en) | Method for measuring canopy interception of single small arbor | |
| CN203053809U (en) | Single small arbor canopy interception measuring device | |
| Lagergren et al. | Time shift between net and gross CO 2 uptake and growth derived from tree rings in pine and spruce | |
| Ma et al. | Variations in stem radii of Larix principis-rupprechtii to environmental factors at two slope locations in the Liupan Mountains, northwest China | |
| Yan et al. | Long-term variations of rainfall interception in different growth stages of Chinese fir plantations | |
| CN106952174B (en) | Water source conservation forest density configuration method based on soil moisture vegetation bearing capacity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |