CN107194821A - A kind of Alpine Meadow ecosystem health appraisal procedure - Google Patents
A kind of Alpine Meadow ecosystem health appraisal procedure Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000003862 health status Effects 0.000 claims abstract description 14
- 238000004458 analytical method Methods 0.000 claims abstract description 11
- 238000011156 evaluation Methods 0.000 claims abstract description 8
- 230000001186 cumulative effect Effects 0.000 claims description 8
- 238000000611 regression analysis Methods 0.000 claims description 4
- 238000000513 principal component analysis Methods 0.000 claims description 3
- 229910017435 S2 In Inorganic materials 0.000 claims 2
- 241000005713 Poa alpina Species 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000011161 development Methods 0.000 description 7
- 239000002689 soil Substances 0.000 description 6
- 244000025254 Cannabis sativa Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 108091064702 1 family Proteins 0.000 description 1
- 241000234646 Cyperaceae Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000209504 Poaceae Species 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000003745 diagnosis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 244000144980 herd Species 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
The invention discloses a kind of more objective, easy evaluation, it is adapted to the basic unit technical staff of production line and the Alpine Meadow ecosystem health appraisal procedure of peasants and herdsmen.This method is first decomposed the target Alpine Meadow ecosystem according to the attribute of concrete condition and index, then the index of N number of assessment Alpine Meadow health is obtained by calculating analysis from 14 indexs of indicator layer, the index of N number of assessment Alpine Meadow health by entropy assessment to obtaining carries out assigning the entropy weight that power obtains each index again, then the index score value for obtaining N number of assessment Alpine Meadow health is calculated, then calculate and obtain the healthy score value of Alpine Meadow, finally, the actual health status of Alpine Meadow is determined by Alpine Meadow health assessment standard according to the healthy scoring event of Alpine Meadow, the appraisal procedure can accurately judge meadow health status, it is convenient and practical for technical staff and peasants and herdsmen.It is adapted in the popularization and application of grassland and father field.
Description
Technical field
The present invention relates to grassland and father field, and in particular to a kind of Alpine Meadow ecosystem health appraisal procedure.
Background technology
1.1 DEG C of the average annual temperature of Alpine Meadow, average annual precipitation 752.4mm is concentrated mainly on the 5-9 months, >=10 DEG C
Annual accumution is 3220 DEG C, without absolute frost-free period, belongs to high and cold humid region.Vegetation is subalpine meadow and Marsh meadow, constructive species
For Cyperaceae and grass family, soil is paramo soil and grassy marshland moisture soil.
The natural meadow ecosystem is the important foundation of animal husbandry development, ecological to protection bio-diversity and maintenance area
Balance is significant.Grassland resources utilization situation and variation tendency can reflect reasonability of the people to grassland utilization, be even more
Ecological protection and animal husbandry development focus of attention.In recent years, rangeland degradation on Qinghai-Tibet Plateau is serious, influences vast pastoral area, partly herds
The sustainable development of social economy of area, jeopardizes ecological safety and the national economic development of Qinghai-Tibet Platean and Lower Reaches.Therefore to grass
It is the indispensable action of ecological protection that ground health, which implements monitoring at any time,.Commented by grassland resources monitoring and meadow health
Valency, can timely and accurately understand the space-time configuration state of grassland resources, grassland science management and rationally utilization be realized, to meadow
The development and ecological protection of animal husbandry have extremely important directive significance.Grassland ecosystems health coverage is wide, ecosystem
System health assessment needs to consider various factors, from different perspectives, different levels evaluated, while having very strong be directed to
Property.Domestic and foreign scholars have carried out the substantial amounts of research of multi-angle to the appraisement system of Grassland ecosystems health, particularly on meadow
In terms of health assessment standard and grade classification.But existing appraisement system theoretical property is stronger, and target layers are complicated, strongly professional,
Index measurement method makes basic unit technical staff and herdsman in production line be difficult to learn and operate, and is very difficult to apply in actual life
In production, therefore need badly on the basis of conventional theoretical research, with reference to production practices and community's traditional knowledge, build and be adapted to this area
Simply, the natural meadow evaluation on Ecosystem Health system of science.
The effect of natural meadow health evaluating is to carry out diagnosis early warning to the health status on meadow, is taken for diagnostic result
Corresponding technical measures are with preferably recovery and management meadow, it is to avoid just taken to collapse or when being difficult to and recover on meadow
Measure, the material resources cost and time cost recovered like that is very high, or even is difficult to reverse.The herdsman of Qinghai-Tibet Platean is grassland ecology
Protector, be the practitioner of range management, be the succession person of Grassland Culture, be the producer of grassland livestock products, so herdsman
It is the main body of grassland protection management, the method for meadow health evaluating, which will allow herdsman and basic unit technical staff to grasp application, just work
With.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of more objective, easy basic unit for evaluating, being adapted to production line
Technical staff and the Alpine Meadow ecosystem health appraisal procedure of peasants and herdsmen.
The present invention solves the technical scheme that is used of above-mentioned technical problem：The Alpine Meadow ecosystem health is commented
Estimate method, comprise the following steps：
S1, the target Alpine Meadow ecosystem decomposed according to the attribute of concrete condition and index, structure layer
Secondary structure, the hierarchical structure is as shown in the table：
S2, from 14 indexs of indicator layer by calculate analysis obtain it is N number of assessment Alpine Meadow health index,
N≤14；
S3, by entropy assessment to obtain N number of assessment Alpine Meadow health index carry out tax power obtain each finger
Target entropy weight wj, ∑ wj=1, j≤N；
S4, according to following table obtain it is N number of assessment Alpine Meadow health index score value Ij, j≤N；
S5, the healthy score value A of calculating Alpine Meadow,
S6, high and cold grass by Alpine Meadow health assessment standard determined according to the healthy scoring event of Alpine Meadow
The actual health status on pasture meadow.
It is further in step s 2, to adopt and analyzed with the following method from 14 indexs of indicator layer by calculating
To the index of N number of assessment Alpine Meadow health, obtained often specifically, 14 indexs of indicator layer are carried out into principal component analysis
The variance yields of individual index, the variance yields of each index is sorted according to order from big to small, and calculate the accumulation of top n index
Variance yields ∑, the cumulative variance value ∑ refers to the variance yields sum of top n index, when cumulative variance value ∑ >=85%, preceding N
Individual index is to assess the index of Alpine Meadow health.
It is further in step s 2, to adopt and analyzed with the following method from 14 indexs of indicator layer by calculating
To the index of N number of assessment Alpine Meadow health, specifically, 14 indexs of indicator layer are carried out into stepwise regression analysis, pick
Except inapparent index, remaining N number of index is to assess the index of Alpine Meadow health.
It is further that in step s 6, the Alpine Meadow health assessment standard is using five sections of evaluation criterions processed.
Beneficial effects of the present invention：The Alpine Meadow ecosystem health appraisal procedure is first by target Alpine meadow
Grassland ecosystems are decomposed according to the attribute of concrete condition and index, hierarchical structure are built, then from 14 of indicator layer
The index of N number of assessment Alpine Meadow health is obtained in index by calculating analysis, then N number of is commented to what is obtained by entropy assessment
Estimate the healthy index of Alpine Meadow to carry out assigning the entropy weight that power obtains each index, then calculate and obtain N number of high and cold grass of assessment
The index score value of pasture meadow health, then calculates and obtains the healthy score value of Alpine Meadow, finally, according to Alpine Meadow
Healthy scoring event determines the actual health status of Alpine Meadow, the assessment by Alpine Meadow health assessment standard
Every evaluation index in method is decomposed according to the situation on specific meadow and the attribute of index, accordingly, it is capable to accurate
Really judge meadow health status, it is convenient and practical for technical staff and peasants and herdsmen, it can effectively instruct basic unit technical staff
The rational management using with science is carried out to meadow with peasants and herdsmen, Grassland ecosystems health status is safeguarded, is meadow herding
Industry sustainable development and the lasting performance of Grassland ecological functions lay the foundation.
Embodiment
The Alpine Meadow ecosystem health appraisal procedure, comprises the following steps：
Comprise the following steps：
S1, the target Alpine Meadow ecosystem decomposed according to the attribute of concrete condition and index, structure layer
Secondary structure, the hierarchical structure is as shown in the table：
Correlation analysis between 14 meadow health evaluating indexs of These parameters layer is as shown in the table：
S2, from 14 indexs of indicator layer by calculate analysis obtain it is N number of assessment Alpine Meadow health index,
N≤14；
S3, by entropy assessment to obtain N number of assessment Alpine Meadow health index carry out tax power obtain each finger
Target entropy weight wj, ∑ wj=1, j≤N；
S4, according to following table obtain it is N number of assessment Alpine Meadow health index score value Ij, j≤N；
S5, the healthy score value A of calculating Alpine Meadow,
S6, high and cold grass by Alpine Meadow health assessment standard determined according to the healthy scoring event of Alpine Meadow
The actual health status on pasture meadow.
The Alpine Meadow ecosystem health appraisal procedure first by the target Alpine Meadow ecosystem according to
The attribute of concrete condition and index is decomposed, and builds hierarchical structure, is then divided from 14 indexs of indicator layer by calculating
Analysis obtains the index of N number of assessment Alpine Meadow health, then obtained N number of assessment Alpine Meadow is good for by entropy assessment
The index of health carries out assigning the entropy weight that power obtains each index, then calculates the index for obtaining N number of assessment Alpine Meadow health
Score value, then calculates and obtains the healthy score value of Alpine Meadow, finally, is passed through according to the healthy scoring event of Alpine Meadow
Alpine Meadow health assessment standard determines every assessment in the actual health status of Alpine Meadow, the appraisal procedure
Index is decomposed according to the situation on specific meadow and the attribute of index, accordingly, it is capable to which accurate judge the healthy shape in meadow
Condition, it is convenient and practical for technical staff and peasants and herdsmen, it can effectively instruct basic unit technical staff and peasants and herdsmen to enter meadow
The rational management using with science of row, safeguards Grassland ecosystems health status, is grassland agriculture sustainable development and meadow
The lasting performance of ecological functions lays the foundation.
In the above-described embodiment, in step s 2, it can adopt and pass through with the following method from 14 indexs of indicator layer
The index that analysis obtains N number of assessment Alpine Meadow health is calculated, specifically, 14 indexs of indicator layer are carried out into principal component
Analysis obtains the variance yields of each index, the variance yields of each index is sorted according to order from big to small, and calculate top n
The cumulative variance value ∑ of index, the cumulative variance value ∑ refers to the variance yields sum of top n index, when cumulative variance value ∑ >=
When 85%, top n index is to assess the index of Alpine Meadow health.14 with the following method from indicator layer can also be adopted
The index of N number of assessment Alpine Meadow health is obtained in individual index by calculating analysis, specifically, 14 of indicator layer are referred to
Mark carries out stepwise regression analysis, rejects inapparent index, and remaining N number of index is to assess the finger of Alpine Meadow health
Mark.
It is further that in step s 6, the Alpine Meadow health assessment standard is using five sections of evaluation criterions processed.
Five sections of evaluation criterions processed are as shown in the table：
Embodiment
14 indexs of indicator layer are subjected to stepwise regression analysis, as a result as following table is shown, floristics, vegetation cover degree,
Water source quality, soil moisture, water source quantity, soil hardness, soil color and indicator plant account for main positions in the health of meadow,
Fresh milk color and luster is first introduced into program, after rejected, this result is had no significant effect after rejecting, therefore, fresh milk color and luster can not be made
One of index to evaluate meadow health.
Successive Regression result
8 the obtained indexs for assessing Alpine Meadow health assign weighing by entropy assessment and obtain each index
Entropy weight wj, it is as shown in the table；
It has chosen the meadow of 21 joint households and each joint household meadow scored, carrying out meadow according to the index of Analysis and Screening comments
Valency, obtains the health assessment result on each joint household meadow, and as shown in the table using five sections of evaluation criterion results processed：
21 joint household Grassland ecosystems health assessment results
As can be seen from the above table, 21 joint household meadows are healthier, wherein the meadow health status of 9 joint households is preferably,
Only 1 family health status is more weaker, and the grassland of whole community is in good state, and the meadow health status with reality is complete
It is complete to coincide.
Claims (4)
1. a kind of Alpine Meadow ecosystem health appraisal procedure, it is characterised in that comprise the following steps：
S1, the target Alpine Meadow ecosystem decomposed according to the attribute of concrete condition and index, build level knot
Structure, the hierarchical structure is as shown in the table：
S2, from 14 indexs of indicator layer by calculate analysis obtain it is N number of assessment Alpine Meadow health index, it is described
N≤14；
S3, by entropy assessment to obtain N number of assessment Alpine Meadow health index carry out assign power obtain each index
Entropy weight wj, ∑ wj=1, j≤N；
S4, according to following table obtain it is N number of assessment Alpine Meadow health index score value Ij, j≤N；
S5, the healthy score value A of calculating Alpine Meadow,J=1,2 ..., N；
S6, Alpine meadow grass by Alpine Meadow health assessment standard determined according to the healthy scoring event of Alpine Meadow
The actual health status on ground.
2. Alpine Meadow ecosystem health appraisal procedure as claimed in claim 1, it is characterised in that：In step S2
In, adopt and obtain N number of assessment Alpine Meadow health by calculating analysis from 14 indexs of indicator layer with the following method
Index, specifically, 14 indexs of indicator layer are carried out into the variance yields that principal component analysis obtains each index, by each index
Variance yields sorts according to order from big to small, and calculates the cumulative variance value ∑ of top n index, and the cumulative variance value ∑ is
Refer to the variance yields sum of top n index, when cumulative variance value ∑ >=85%, top n index is assessment Alpine Meadow
The index of health.
3. Alpine Meadow ecosystem health appraisal procedure as claimed in claim 1, it is characterised in that：In step S2
In, adopt and obtain N number of assessment Alpine Meadow health by calculating analysis from 14 indexs of indicator layer with the following method
Index, specifically, 14 indexs of indicator layer are carried out into stepwise regression analysis, rejects inapparent index, remaining N number of index
As assess the index of Alpine Meadow health.
4. Alpine Meadow ecosystem health appraisal procedure as claimed in claim 1, it is characterised in that：In step S6
In, the Alpine Meadow health assessment standard is using five sections of evaluation criterions processed.
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| CN114431055A (en) * | 2021-12-09 | 2022-05-06 | 西南民族大学 | Method for simulating temperature increase and rain increase and decrease of alpine meadow in Qinghai-Tibet plateau |
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Application publication date: 20170922 |