CN108633844B - Method for evaluating recovery potential of karst ecosystem by utilizing soil animals - Google Patents
Method for evaluating recovery potential of karst ecosystem by utilizing soil animals Download PDFInfo
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- CN108633844B CN108633844B CN201810383049.8A CN201810383049A CN108633844B CN 108633844 B CN108633844 B CN 108633844B CN 201810383049 A CN201810383049 A CN 201810383049A CN 108633844 B CN108633844 B CN 108633844B
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- 239000002689 soil Substances 0.000 title claims abstract description 105
- 241001465754 Metazoa Species 0.000 title claims abstract description 58
- 238000011084 recovery Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 238000009792 diffusion process Methods 0.000 claims abstract description 11
- 238000011065 in-situ storage Methods 0.000 claims abstract description 11
- 230000005059 dormancy Effects 0.000 claims abstract description 8
- 230000002265 prevention Effects 0.000 claims abstract description 6
- 239000000523 sample Substances 0.000 claims description 27
- 235000013601 eggs Nutrition 0.000 claims description 17
- 238000005070 sampling Methods 0.000 claims description 14
- 238000011282 treatment Methods 0.000 claims description 9
- 239000012805 animal sample Substances 0.000 claims description 8
- 230000012447 hatching Effects 0.000 claims description 4
- 230000000284 resting effect Effects 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000012258 culturing Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 239000002344 surface layer Substances 0.000 claims description 2
- 238000011835 investigation Methods 0.000 abstract 1
- 238000011160 research Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/033—Rearing or breeding invertebrates; New breeds of invertebrates
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention belongs to the technical field of ecosystems, and discloses a method for evaluating recovery potential of a karst ecosystem by utilizing soil animals, wherein the method for measuring the recovery potential of the karst ecosystem takes the soil animals as objects; comprehensively evaluating the diffusion recovery potential and the dormancy egg bank recovery potential of soil animals in the karst region through a field in-situ soil column transplanting test and a soil animal egg bank indoor culture test. The method takes a typical karst rocky desertification region-Guizhou province Proding county as an example, investigation and analysis are carried out on the diffusion recovery potential and the influence factors of soil animals under different rocky desertification degrees of Guizhou karst, and the recovery potential of the soil animal dormancy egg bank under the karst rocky desertification background is ascertained. The method provides scientific basis for the recovery and comprehensive prevention and control of the fragile ecosystem in the karst stony desertification region.
Description
Technical Field
The invention belongs to the technical field of ecological systems, and particularly relates to a method for evaluating recovery potential of a karst ecological system by using soil animals.
Background
The karst ecosystem is a fragile ecosystem, is degraded in a large area due to unreasonable development and utilization of human beings, and seriously threatens agricultural production environment and even human survival. The evaluation of the recovery potential of the degenerated karst ecosystem is of great significance to the recovery and reconstruction work of the developed karst ecosystem. The existing assessment means is mainly based on the recovery condition of overground vegetation, but because the growth period of plants is long and the related work can only be carried out in situ in the field, the time consumption is long, and the investment of manpower and financial resources is large. Soil animals are important components of biological diversity, and have the advantages of large number of species, high density, wide distribution and short life cycle (about 30 days for most species), and are convenient for indoor culture and propagation, so the soil animals are effective objects for evaluating the recovery potential of an ecosystem.
In summary, the problems of the prior art are as follows: in the existing method for evaluating the karst ecosystem, the plant growth period is long, and the evaluation consumes long time; under regional environmental conditions, soil animals are best suited for the acquisition of living conditions.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method for evaluating the recovery potential of a karst ecosystem by using soil animals.
The invention is realized by the method for evaluating the recovery potential of the karst ecosystem by utilizing soil animals, wherein the method takes the soil animals as objects; through a field in-situ soil column transplanting test and a soil animal dormant egg bank indoor culture test, the diffusion recovery potential and the dormant egg bank recovery potential of soil animals in the karst region are comprehensively evaluated, and a basis is provided for recovery and comprehensive prevention and control of a karst fragile state system from the viewpoint of underground biological diversity.
Further, the method for evaluating the recovery potential of the karst ecosystem by utilizing soil animals comprises the following steps:
the method for measuring the diffusion recovery potential of the soil animals comprises the following steps: selecting sample plots with different stony desertification degrees; collecting 10 cm soil samples on the surface layer of each sample plot, removing 1 part of soil animal district system, and taking 1 part as a control; packaging each soil sample by using a mesh bag with a pore diameter of 20 meshes to prepare soil columns with the diameter of 13 cm, respectively putting the soil columns back to the sampling original sites of the corresponding sample plot, and repeating the sampling process for 7 times; sampling on 15 days, 30 days and 60 days after transplanting, separating and identifying the obtained soil animal samples; simultaneously, measuring the physical and chemical properties of the soil;
the method for determining the restoration potential of the dormant egg pool of the soil animal comprises the following steps: setting the soil samples of the non-stony desertification sample plot from which the living bodies of the soil animals are removed at 20 ℃, 23 ℃, 25 ℃, 27 ℃, 30 ℃ and 20%, 25% and 30% of soil humidity respectively, performing indoor culture, and exploring the optimal culture conditions for hatching the resting eggs of the soil animals; removing imagoes from surface soil of the 4 sample plots by a cold shock method, culturing for 30 days in an incubator in a dark place under the condition of the screened optimal temperature and humidity, and sampling; separating and identifying the obtained soil animal sample; each treatment was repeated 12 times.
Further, the plots selected for the 4 different degrees of stony desertification were non-stony desertification R0, potential stony desertification R1, mild stony desertification R2, and moderate stony desertification R3.
Further, the soil without stony desertification land from which the animal line and the control were removed was transplanted in situ to the stony desertification land by replacing the respective land sampling sites with the corresponding land sampling sites, and the results were designated as OR0 and WR0, and OR1, WR1, OR2, WR2, OR3 and WR3 for a total of 8 treatments.
The invention has the advantages and positive effects that: guizhou is the most developed area of karst landform in China and belongs to a typical ecological fragile area. The biodiversity in this area has very important value in maintaining and improving the stability of the ecosystem and its ecological function. The method takes Pudingcounty as an example, the soil animal diffusion recovery potential under different rocky desertification degrees of Guizhou karst is investigated and analyzed, and the soil animal dormancy egg bank recovery potential under the karst rocky desertification background is ascertained. The method provides scientific basis for the recovery and comprehensive prevention and control of the fragile ecosystem in the karst stony desertification region. The whole test period can be completed within two months, and the efficiency of the existing evaluation means can be improved by more than 50%.
Drawings
FIG. 1 is a flow chart of a method for evaluating the recovery potential of a karst ecosystem by using soil animals according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention takes soil animals as research objects to promote the research of regional biodiversity; through a field in-situ soil column transplanting test and a soil animal dormant egg bank indoor culture test, the diffusion recovery potential and the dormant egg bank recovery potential of soil animals in the karst region are comprehensively evaluated, and a scientific basis is provided for recovery and comprehensive prevention and control of a karst fragile state system from the viewpoint of underground biological diversity.
The following detailed description of the principles of the invention is provided in connection with the accompanying drawings.
As shown in fig. 1, the method for evaluating the recovery potential of the karst ecosystem by using soil animals provided by the embodiment of the invention comprises the following steps:
s101: taking soil animals as objects; comprehensively evaluating the diffusion recovery potential and the dormancy egg bank recovery potential of soil animals in the karst region through a field in-situ earth pillar transplanting test and a soil animal dormancy egg bank indoor culture test, and acquiring the optimal environmental condition for recovering the soil biological diversity of the degraded ecosystem;
s102: from the angle of recovering underground biological diversity, scientific basis is provided for recovery and comprehensive prevention and control of a karst fragile ecological system.
The method for evaluating the recovery potential of the karst ecosystem by using the soil animals provided by the embodiment of the invention specifically comprises the following steps:
the method for measuring the diffusion recovery potential of the soil animals comprises the following steps: 4 samples of different degrees of stony desertification were selected (no stony desertification R0, potential stony desertification R1, mild stony desertification R2 and moderate stony desertification R3). Soil samples of approximately 10 cm surface area were taken from each plot, 1 part removed from soil zoological system (O) and 1 part control (W); each soil sample was bagged with a mesh of 20 mesh size to form a soil column of 13 cm in diameter, and each soil sample was returned to the corresponding sample site (i.e., soil from non-stony plots of the animal removal system and the control was transplanted to non-stony plots in situ, designated as OR0 and WR0, and OR1, WR1, OR2, WR2, OR3 and WR3 for 8 treatments in total), and the procedure was repeated 7 times; sampling on 15 days, 30 days and 60 days after transplanting, separating and identifying the obtained soil animal samples; simultaneously, measuring the physical and chemical properties of the soil;
the method for determining the restoration potential of the dormant egg pool of the soil animal comprises the following steps: setting the soil samples of the non-stony desertification sample plot from which the living bodies of the soil animals are removed at 20 ℃, 23 ℃, 25 ℃, 27 ℃, 30 ℃ and 20%, 25% and 30% of soil humidity respectively, performing indoor culture, and exploring the optimal culture conditions for hatching the resting eggs of the soil animals; removing imagoes from surface soil of the 4 kinds of sample plots by a cold shock method, culturing for 30 days in an incubator in a dark place under the condition of the screened optimal temperature and humidity, and sampling; separating and identifying the obtained soil animal sample; each treatment was repeated 12 times.
The application principle of the present invention will be further described with reference to experiments.
The test is carried out in an observation research station of the Prading karst ecosystem in Guizhou province. Comprehensively considering factors such as vegetation, land utilization types and the like, selecting sample plots with representative 4 different stony desertification degrees in a research area: no stony desertification (R0), potential stony desertification (R1), mild stony desertification (R2) and moderate stony desertification (R3) plots, 3 plots of 50m by 50m were selected each, and located and protected.
Soil animal diffusion recovery potential determination method
Soil samples of approximately 10 cm surface area were taken from selected 4 types of plots, 1 part was removed from the soil zoological system (O-25/25 ℃, 12/12h, 3 cycles of freeze-thaw), and 1 part was used as a control (W, no treatment). Each soil sample was then bagged with a 20 mesh screen to form a 13 cm diameter column and returned to the corresponding sample site. Namely, the soil of the non-stony sample plot of the removed animal area and the control is transplanted to the non-stony sample plot in situ, and is marked as OR0 and WR0, and OR1, WR1, OR2, WR2, OR3 and WR3, and the total of 8 treatments are repeated for 7 times in the sample plot. And respectively sampling on 15 days, 30 days and 60 days after transplanting, and separating and identifying the obtained soil animal samples. And simultaneously measuring the physical and chemical properties of the soil.
Soil animal dormancy egg bank restoration potential determination method
A soil sample of a non-stony desertification sample plot from which living soil animals were removed was subjected to indoor culture by setting the soil humidity (water content) at 20 ℃, 23 ℃, 25 ℃, 27 ℃, and 30 ℃ and at 20%, 25%, and 30%, respectively, and optimum culture conditions for hatching resting eggs of the soil animals were searched for. After the surface soil of the 4 kinds of sample plots is treated by a cold shock method to remove adults, the surface soil is cultured in an incubator for 30 days in a dark place under the conditions of the screened optimal temperature and humidity, and then a sample is taken. And separating and identifying the obtained soil animal sample. Each treatment was repeated 12 times.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. A method for evaluating the recovery potential of a karst ecosystem by utilizing soil animals is characterized in that the method takes the soil animals as objects; comprehensively evaluating the diffusion recovery potential and the dormancy egg bank recovery potential of soil animals in karst regions through a field in-situ soil column transplanting test and a soil animal dormancy egg bank indoor culture test, and providing a basis for recovery and comprehensive prevention of a karst fragile state system from the viewpoint of underground biological diversity;
the method for evaluating the recovery potential of the karst ecosystem by using soil animals comprises the following steps:
the method for measuring the diffusion recovery potential of the soil animals comprises the following steps: selecting sample plots with different stony desertification degrees; collecting 10 cm soil samples on the surface layer of each sample plot, removing 1 part of soil animal district system, and taking 1 part as a control; packaging each soil sample by using a mesh bag with a pore diameter of 20 meshes to prepare soil columns with the diameter of 13 cm, respectively putting the soil columns back to the sampling original sites of the corresponding sample plot, and repeating the sampling process for 7 times; sampling on 15 days, 30 days and 60 days after transplanting, separating and identifying the obtained soil animal samples; simultaneously, measuring the physical and chemical properties of the soil;
the method for determining the restoration potential of the dormant egg pool of the soil animal comprises the following steps: setting the soil samples of the non-stony desertification sample plot from which the living bodies of the soil animals are removed at 20 ℃, 23 ℃, 25 ℃, 27 ℃, 30 ℃ and 20%, 25% and 30% of soil humidity respectively, performing indoor culture, and exploring the optimal culture conditions for hatching the resting eggs of the soil animals; removing imagoes from surface soil of the 4 sample plots by a cold shock method, culturing for 30 days in an incubator in a dark place under the condition of the screened optimal temperature and humidity, and sampling; separating and identifying the obtained soil animal sample; each treatment was repeated 12 times.
2. The method for evaluating the recovery potential of the karst ecosystem by using soil animals according to claim 1, wherein the plots with 4 different degrees of stony desertification are non-stony desertification R0, potential stony desertification R1, mild stony desertification R2 and moderate stony desertification R3.
3. The method for assessing karst ecosystem restoration potential using soil animals as claimed in claim 1, wherein the in situ replacement of the soil without stony desertification plots from which the animal plots and the control were removed, respectively, to the corresponding sampling sites, is transplanting the soil without stony desertification plots in situ as OR0 and WR0, and OR1, WR1, OR2, WR2, OR3 and WR3 for a total of 8 treatments.
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| CN112365137B (en) * | 2020-10-28 | 2022-03-29 | 贵州大学 | Method for measuring karst habitat level heterogeneity based on microbial environment types |
| CN112425559A (en) * | 2020-11-05 | 2021-03-02 | 宁波大学 | Digital traceless accurate space sampling reset method for field soil animal collection |
| CN113740511B (en) * | 2021-09-06 | 2023-09-08 | 宁波大学 | Method for obtaining soil animal active biosensor for farmland soil health diagnosis |
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