CN103376218A - Sample embedding device for monitoring decomposition of different-depth plant root systems in soil - Google Patents
Sample embedding device for monitoring decomposition of different-depth plant root systems in soil Download PDFInfo
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- CN103376218A CN103376218A CN2012101096055A CN201210109605A CN103376218A CN 103376218 A CN103376218 A CN 103376218A CN 2012101096055 A CN2012101096055 A CN 2012101096055A CN 201210109605 A CN201210109605 A CN 201210109605A CN 103376218 A CN103376218 A CN 103376218A
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Abstract
The invention relates to research instruments for the decomposition of plant root systems in soil and in particular relates to a sample embedding device for monitoring the decomposition of different-depth plant root systems in soil. The device comprises a straight rod and mesh bags, wherein large scales are marked downwards on the straight rod at intervals from the set part at the top end of the straight rod; a small scale is marked between the two adjacent large scales; the opening sealing ends of the mesh bags are fixed at the small scale parts on the straight rod by fixing nails; the mesh bags are bags which are formed by sewing nylon nets; one ends of the bags are provided with openings; after the plant systems are placed in the bags, the openings of the bags are sealed at the parts having set distances from the openings by thin wires; when the straight rod is embedded, dug soils are arranged at different places in sequence according to different depths; the part, above the top scale, of the straight rod is exposed outside the ground; the part, below the top scale, of the straight rod is embedded in the soil; the dug soils are re-filled in a pit in sequence according to different depths, and the disorder of the soil level is avoided. According to the device, plant root samples can be embedded in different-depth soils, the sample embedding position is accurate, the sampling is simple and convenient, and the losing of the samples can be effectively avoided.
Description
Technical field
The present invention relates to the research equipment that root system of plant decomposes in the soil, specifically a kind of sample embedded device of monitoring different depth root system of plant decomposition in the soil.
Background technology
It is the basic process that ecosystem soil organism Residue decay transforms that root system of plant decomposes, and is the key link of system's Nutrient Cycling, to the utilizability of regulating soil nutrient with keep soil productivity and have vital role.The decomposition of root system of plant in the monitoring soil, can understand root system litter decomposition rate and root system decompose of nutrient rate of release, and further understand the root system Decomposition of leaf litter to utilizability and the Nutrient distribution impact of soil nutrient, significant to researching plant root-soil nutrient circulation.
At present, people's nylon net bags of root system being put into a certain aperture that adopt more, a plurality of nylon net bags are imbedded in a certain soil layer (general 0～20cm), by at set intervals sampling, Root decomposition is dynamic in the monitoring soil, reaches the purpose of monitoring Root decomposition speed.Yet, the different root systems of plant degree of depth difference of growing downwards, general Herb Root reaches 1～2 meter deeply, and the shrub plant root system degree of depth can reach 5～8 meters; What is more, and the arid area Bushes Roots can reach 10～20 meters deeply.Because below root system vertical distribution scope is very wide, and different depth soil physics, chemistry and biology characteristic are different; Therefore, the root system of plant decomposition rate can there are differences in the different levels soil, only measures that a certain degree of depth Root decomposition speed is difficult to embody different levels soil Root decomposition speed difference in the soil, can't reflect truly that root system of plant is whole to decompose dynamically.And if adopt the root system bag is imbedded in the hole of different depth, then need to dig in a plurality of holes or a hole and establish a plurality of layers, bury respectively the root system bag underground, this kind method wastes time and energy, and is difficult to guarantee the accuracy of taking a sample, and the possibility that sample is lost increases.
Summary of the invention
The problems referred to above that exist in order to solve existing monitoring plant Root decomposition the object of the present invention is to provide a kind of sample embedded device that the different depth root system of plant decomposes in the soil of monitoring.
The objective of the invention is to be achieved through the following technical solutions:
The present invention includes straight-bar and mesh bag, wherein be provided with the mesh bag of a plurality of in-built root systems of plant on the straight-bar from top to bottom, during each mesh bag on the described straight-bar is all placed into the soil.
Wherein: described straight-bar is marked with scale; Scale on the described straight-bar indicates a down scale for equidistantly to indicate high range on straight-bar between the two adjacent high ranges; Described down scale is positioned at the centre of two adjacent high ranges, all is connected with a mesh bag on the straight-bar at each down scale place; The sack of described mesh bag is fixed on the straight-bar by staple, is being provided with a seal location near the sack place; During the following part of the scale of top is placed into the soil on the described straight-bar.
Advantage of the present invention and good effect are:
1. the present invention not only can bury the root system sample underground in different depth soil, and the sample burial place is accurate, and it is easy to take a sample, and can effectively avoid sample to lose.
2. the present invention buries the mode that adopts layered backfill in the process underground at sample, reduces the soil layer change, goes back the native soil initial position as far as possible, approaches with natural conditions.
3. the present invention is simple in structure, and low cost of manufacture operates simple and easyly, is suitable for various soil environments.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlarged drawing at I place among Fig. 1;
Fig. 3 is that the present invention is applied to the synoptic diagram that the field is buried underground;
Wherein: 1 is straight-bar, and 2 is scale, and 3 is mesh bag, and 4 is seal location, and 5 is staple, and 6 is square hole.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, the present invention includes straight-bar 1 and mesh bag 3, wherein straight-bar 1 is that diameter is 2.5～4cm, height is the solid rod of 1.2～1.4m, be provided with the mesh bag 3 of a plurality of in-built root systems of plant on the straight-bar 1 from top to bottom, this mesh bag 3 is to be that to make specification be the sack that the end of 10～15cm * 15～20cm stays mouthful for the nylon net cloth of 0.5～3mm with the aperture.Described straight-bar 1 is marked with scale 2, this scale 2 is from distance straight-bar 1 top setpoint distance, indicate high range every equidistance downwards, the centre position between the two adjacent high ranges indicates a down scale, all is connected with a mesh bag 3 on the straight-bar 1 at each down scale place; The sack of mesh bag 3 is fixed on the straight-bar 1 by staple 5, is being provided with a seal location 4 near the sack place, and this seal location 4 is with line mesh bag 3 to be sealed at distance sack setpoint distance place.Present embodiment be with 15～20cm place, distance straight-bar 1 top as starting point, every 20cm (determining distance according to the research needs) high range 2 of mark, the centre position between per two high ranges arranges a down scale again; At distance sack 3～5cm place, with line with sack sealing, form seal location 4, the sealing line Outboard Sections of the seal location 4 of mesh bag 3 is fixed on the down scale of straight-bar 1, fix (as shown in Figure 2) with 3～5 staples 5 on each mesh bag.During the part of scale below 2 of top placed into the soil on the straight-bar 1, when burying straight-bar 1 underground, the soil that digs out is put in diverse location successively by different depth, the part of scale more than 2 of the top of straight-bar 1 exposed the earth's surface, during following part is placed into the soil, the soil that takes out is backfilling in the hole successively by different depth, avoids soil layer chaotic.
As shown in Figure 3, when burying underground, according to the sampling number of times, determine to bury underground the number of straight-bar 1 in the open air, sampling is 12 times in the present embodiment, buries 12 of straight-bars underground, and every straight-bar 12 is all vertically buried underground.Test sample in the open air and dig 1 meter dark square hole 6 on the ground, from the top layer to the bottom, the dark soil of every 20cm is one deck, and the soil that digs out is put in diverse location successively by different depth; With picking up from the soil 0～20,20～40,40～60,60～80 and the oven dry of 80～100cm root system of plant, rear each mesh bag 3 put into respectively on the straight-bar 1 of weighing, record each mesh bag 3 corresponding root system degree of depth; In the hole, lay a straight-bar 1 every setpoint distance, make the part of scale more than 2 of straight-bar 1 top expose the earth's surface, the soil that takes out is backfilling in the hole successively by different depth, avoid soil layer chaotic.Sampling is once taken out a straight-bar 1 at every turn per month, and the mesh bag 3 of different levels is taken off, and measures index of correlation in testing laboratory.
Claims (6)
1. monitor the sample embedded device that the different depth root system of plant decomposes in the soil for one kind, it is characterized in that: comprise straight-bar (1) and mesh bag (3), wherein be provided with the mesh bag (3) of a plurality of in-built root systems of plant on the straight-bar (1) from top to bottom, during each mesh bag (3) on the described straight-bar (1) is all placed into the soil.
2. the sample embedded device that decomposes by different depth root system of plant in the described monitoring soil of claim 1, it is characterized in that: described straight-bar (1) is marked with scale (2).
3. the sample embedded device that decomposes by different depth root system of plant in the described monitoring soil of claim 2, it is characterized in that: the scale (2) on the described straight-bar (1) indicates a down scale for equidistantly to indicate high range on straight-bar (1) between the two adjacent high ranges.
4. the sample embedded device that decomposes by different depth root system of plant in the described monitoring soil of claim 3, it is characterized in that: described down scale is positioned at the centre of two adjacent high ranges, all is connected with a mesh bag (3) on the straight-bar at each down scale place (1).
5. the sample embedded device that decomposes by different depth root system of plant in claim 1 or the 4 described monitoring soil, it is characterized in that: the sack of described mesh bag (3) is fixed on the straight-bar (1) by staple (5), is being provided with a seal location (4) near the sack place.
6. the sample embedded device that decomposes by different depth root system of plant in claim 2 or the 3 described monitoring soil is characterized in that: during the following part of scale (2) of the upper top of described straight-bar (1) is placed into the soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210109605.5A CN103376218B (en) | 2012-04-13 | 2012-04-13 | A kind of sample embedded device of monitoring different depth root system of plant decomposition in soil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210109605.5A CN103376218B (en) | 2012-04-13 | 2012-04-13 | A kind of sample embedded device of monitoring different depth root system of plant decomposition in soil |
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| CN103376218A true CN103376218A (en) | 2013-10-30 |
| CN103376218B CN103376218B (en) | 2016-03-02 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236975A (en) * | 2014-09-19 | 2014-12-24 | 中国科学院广州地球化学研究所 | Simple ocean sediment sample separating device for paleomagnetism research |
| CN106769280A (en) * | 2016-11-24 | 2017-05-31 | 程燕君 | A kind of simple marine sediment PALEOMAGNETIC STUDY point sampling device |
| CN106912597A (en) * | 2015-12-24 | 2017-07-04 | 丰益(上海)生物技术研发中心有限公司 | Bag and method are tracked for monitoring drying for grain dry degree |
| CN110021336A (en) * | 2017-07-25 | 2019-07-16 | 中国石油天然气股份有限公司 | Root system of plant vertical distribution model building method and device |
| CN110988303A (en) * | 2019-12-17 | 2020-04-10 | 中国科学院东北地理与农业生态研究所 | Device for measuring decomposition rates of litter in different soil layers of wetland and application |
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| US4445788A (en) * | 1982-04-30 | 1984-05-01 | The Board Of Regents Of The University Of Nebraska | Soil probe and method of obtaining moisture, temperature and root distribution of a soil profile |
| CN101726448A (en) * | 2008-10-10 | 2010-06-09 | 中国科学院沈阳应用生态研究所 | Method for monitoring organic matter remaining quantity in soil sample |
| CN202562792U (en) * | 2012-04-13 | 2012-11-28 | 中国科学院沈阳应用生态研究所 | Sample burying device for detecting decomposition of plant roots in different depth in soil |
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2012
- 2012-04-13 CN CN201210109605.5A patent/CN103376218B/en not_active Expired - Fee Related
Patent Citations (3)
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| US4445788A (en) * | 1982-04-30 | 1984-05-01 | The Board Of Regents Of The University Of Nebraska | Soil probe and method of obtaining moisture, temperature and root distribution of a soil profile |
| CN101726448A (en) * | 2008-10-10 | 2010-06-09 | 中国科学院沈阳应用生态研究所 | Method for monitoring organic matter remaining quantity in soil sample |
| CN202562792U (en) * | 2012-04-13 | 2012-11-28 | 中国科学院沈阳应用生态研究所 | Sample burying device for detecting decomposition of plant roots in different depth in soil |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236975A (en) * | 2014-09-19 | 2014-12-24 | 中国科学院广州地球化学研究所 | Simple ocean sediment sample separating device for paleomagnetism research |
| CN106912597A (en) * | 2015-12-24 | 2017-07-04 | 丰益(上海)生物技术研发中心有限公司 | Bag and method are tracked for monitoring drying for grain dry degree |
| CN106769280A (en) * | 2016-11-24 | 2017-05-31 | 程燕君 | A kind of simple marine sediment PALEOMAGNETIC STUDY point sampling device |
| CN106769280B (en) * | 2016-11-24 | 2019-10-29 | 中国石油大学(华东) | A kind of simple marine sediment PALEOMAGNETIC STUDY divides sampling device |
| CN110021336A (en) * | 2017-07-25 | 2019-07-16 | 中国石油天然气股份有限公司 | Root system of plant vertical distribution model building method and device |
| CN110988303A (en) * | 2019-12-17 | 2020-04-10 | 中国科学院东北地理与农业生态研究所 | Device for measuring decomposition rates of litter in different soil layers of wetland and application |
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| Publication number | Publication date |
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| CN103376218B (en) | 2016-03-02 |
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