CN110163423A - A kind of river ecological Restoration system - Google Patents
A kind of river ecological Restoration system Download PDFInfo
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- 230000005068 transpiration Effects 0.000 description 2
- 208000036119 Frailty Diseases 0.000 description 1
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Abstract
The invention discloses a kind of river ecological Restoration systems; including river ecological data analysis system and ecological implementation system; the analysis method of river ecological data analysis system specifically includes following steps; S1, water balanced calculation; S2, water amount of seepage calculate; the separation reasoning of S3, climate change and mankind's activity to Southeast Tibetan Plateau amount the present invention relates to basin protection of resources and utilizes technical field.The river ecological Restoration system, the comparative analysis degree of protection of river basin ecological water before and after large watershed integrated management, and the Variation Features of natural vegetation cover degree, soil drought, the safeguard effects that large watershed comprehensive management mode supplies ecological water under quantitative evaluation climate change background, pass through the causes between building river ethic, leakage and tree ring standard chronology, the new approaches that river water amount of seepage is rebuild with tree-ring width index are proposed, for the groundwater optimal management for realizing arid biogeographic zone analogy basin.
Description
Technical field
The present invention relates to basin protection of resources and utilize technical field, specially a kind of river ecological Restoration system.
Background technique
Rationally efficient system of watershed management maintains fragility to arid biogeographic zone natural vegetation ecological water demand is ensured for building
The ecosystem is completely of great significance with stabilization.In arid biogeographic zone, watershed management how is assessed to the effect of ecological protection how
It realizes the Optimum Regulation of ecological water and efficiently utilizes, it has also become numerous scholars and watershed management person's focus of attention problem.
Due to shortage of water resources, socio-economic development lag and ecological environment frailty, Arid Area is that global environment becomes
Change and one of the key area in the Study on Sustainable Development.In recent years, climate variation and the overdeveloped comprehensive shadow of water resource
It rings, some Arid Areas occur that social and economic water consumption largely ties up Eco-environmental Water Consumption, natural vegetation large area decays, underground
Ecological environment problems, the integrated managements of this watershed such as water level decreasing, desertification of land exacerbation propose new challenge.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of river ecological Restoration system, existing river is solved
Ecological recovery system does not analyze river ecological data very well, does not provide for groundwater optimal management and ecological safety
The problem of scientific guidance.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of river ecological Restoration system, packet
Include river ecological data analysis system and ecological implementation system, the analysis method of river ecological data analysis system specifically include with
Lower step:
S1, water balanced calculation, water balanced calculation formula are as follows:
RH=Wd+Rl+Fm-Rw；
S2, water amount of seepage calculate, according to Darcy's law, the calculation formula of Tarim River water amount of seepage are as follows:
QR=KWL (hR-hG)/Δ L；
The separation reasoning of S3, climate change and mankind's activity to Southeast Tibetan Plateau amount:
Model stream is chosen, on the basis of 30 annual flows before the river, trend model prediction is superimposed by construction schedule
Rear 20 years run-offs are obtained, is the natural runoff by mankind's activity and climate change interference under smaller, is denoted as
RHC(sli), secondly, former 30 years yielding flows construct relationship mould between the two with run-off is divided for foundation in model stream
Type, then, according to the runoff magnitude after 20 years, climate change is significantly affected down after being calculated 20 years by the model constructed
Run-off, be denoted as RC(str), the measured runoff after 20 years is denoted as RM, N is total year, and then, weather becomes every year on average
Change and mankind's activity be to the calculation formula of source stream area runoff influence amount are as follows:
Climate change effect amount every year on average: Δ RC=(RC(str)-RHC(sli))/N；
Effect of human activity amount every year on average: Δ RH=(RC(str)-RM)/N；
Firstly, building calculates RHC(sli)Model, using 17 years periods of mainstream as calculation basis, by first three ten annual flow data
Input model obtains the fit equation of runoff, and the average relative error of the equation is 4.14%, and fitting precision is preferable, therefore, 20
R after yearHC(sli)It calculates and obtains using the model；
Secondly, building calculates RC(str)Relational model, utilize yielding flow before current year and run-off measured data, structure
Established model is as follows:
Z=40.2378-0.2668x+0.0016x2, R2=0.85
In formula, Z represents mainstream annual runoff, and x indicates yielding flow, and the equation is that climate change generates by force source stream runoff
Before strong influence, with the relational model between the runoff of mainstream, thus, RC(str)Using rear 20 years source streams run-off measured data band
Enter the model and calculates acquisition.
Preferably, the ecological implementation system implementation method specifically includes the following steps:
T1, remote sensing images analysis: river is implemented to monitor and analyze using remote sensing image technology；
T2, tree ring sampling and processing:
In order to analyze influence of the hydrological variation to diversiform-leaved poplar tree wheel standard chronology, meet sampling requirement, apart from river 500-
The diameter of a cross-section of a tree trunk 1.3 meters above the ground is chosen at 1000m to be sampled between the adult diversiform-leaved poplar of 30-50cm, chooses diversiform-leaved poplar 102 altogether, and each tree is handed over cross
Fork method obtains sample core, is altogether 191, diversiform-leaved poplar tree core sample is taken back laboratory is pasted, fixes, polishes etc. and pre-processes, with
Meet cross feedback control demand, during establishing chronology, for reservation as much as possible in tree-ring width chronologies low frequency side
Difference, using negative exponential curve or the straight line without the positive gradient is fitted Tree-ring width sequence, to remove the life of trees itself
Long trend finally obtains standardization year additionally using the variance of the further stable chronology of spline function of 2/3 sequence length
Table, many studies have shown that, the standardization chronology of diversiform-leaved poplar tree wheel can be well reflected the information of hydrological variation.
Preferably, R in the step S1 Chinese styleHFor source stream run-off, WdFor Water diversion, R1For River
Loss, FmFor Water volume into mainstream, RwFor Return water.
Preferably, QR is section leakage in the step S2, and K is infiltration coefficient, and W is that the water surface is wide, and L is that river is long, and hR is
River water level, is level of ground water under hG, and Δ L is river water recharge groundwater path length.
Preferably, it is the accuracy for ensuring cross feedback control in the step T2, utilizes LINTABTM6The measurement of type tree ring
Instrument carries out annual ring width measurement.
Preferably, in the step T2 by COFECHA cross feedback control Quality Control Procedure carry out cross feedback control examine and
The foundation of the amendment of increment, standard chronology is completed by ARSTAN program.
(3) beneficial effect
The present invention provides a kind of river ecological Restoration systems.Have compared with prior art it is following the utility model has the advantages that
(1), the river ecological Restoration system, by S1, water balanced calculation, S2, water amount of seepage are calculated, and S3, weather become
Change and separation reasoning of the mankind's activity to Southeast Tibetan Plateau amount: choosing model stream, on the basis of 30 annual flows before the river, leads to
Cross construction schedule superposition trend model predict to obtain rear 20 years run-offs, be by mankind's activity and climate change interference compared with
Natural runoff under small, the comparative analysis degree of protection of river basin ecological water before and after large watershed integrated management, and it is natural
Vegetation cover degree, soil drought and the Variation Features of arboreal growth, large watershed integrated pipe under quantitative evaluation climate change background
The safeguard effects that reason mode supplies ecological water demonstrate the coordination hair that can promote River valley economy and the ecosystem under the mode
Exhibition.
(2), the river ecological Restoration system, by the implementation method of ecological implementation system specifically includes the following steps: T1,
Remote sensing images analysis: implementing to monitor and analyze using remote sensing image technology to river, T2, tree ring sampling and processing: in order to
Influence of the hydrological variation to diversiform-leaved poplar tree wheel standard chronology is analyzed, sampling requirement is met, chest is being chosen at river 500-1000m
Diameter is sampled between the adult diversiform-leaved poplar of 30-50cm, by building river ethic, leakage and tree ring standard chronology it
Between causes, be put forward for the first time with tree-ring width index rebuild river water amount of seepage new approaches, for realize arid biogeographic zone phase
Scientific guidance is provided like the groundwater optimal management and ecological safety in basin.
Detailed description of the invention
Fig. 1 is structure of the invention fit equation table figure；
Fig. 2 is that structure of the invention diversiform-leaved poplar tree takes turns standard chronology Parameter Map.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of technical solution referring to FIG. 1-2: a kind of river ecological Restoration system, including river
Flow ecological data analysis system and ecological implementation system, it is characterised in that: the analysis method of river ecological data analysis system has
Body the following steps are included:
S1, water balanced calculation, water balanced calculation formula are as follows:
RH=Wd+Rl+Fm-Rw；
S2, water amount of seepage calculate, according to Darcy's law, the calculation formula of Tarim River water amount of seepage are as follows:
QR=KWL (hR-hG)/Δ L；
The separation reasoning of S3, climate change and mankind's activity to Southeast Tibetan Plateau amount:
Model stream is chosen, on the basis of 30 annual flows before the river, trend model prediction is superimposed by construction schedule
Rear 20 years run-offs are obtained, is the natural runoff by mankind's activity and climate change interference under smaller, is denoted as
RHC(sli), secondly, former 30 years yielding flows construct relationship mould between the two with run-off is divided for foundation in model stream
Type, then, according to the runoff magnitude after 20 years, climate change is significantly affected down after being calculated 20 years by the model constructed
Run-off, be denoted as RC(str), the measured runoff after 20 years is denoted as RM, N is total year, and then, weather becomes every year on average
Change and mankind's activity be to the calculation formula of source stream area runoff influence amount are as follows:
Climate change effect amount every year on average: Δ RC=(RC(str)-RHC(sli))/N；
Effect of human activity amount every year on average: Δ RH=(RC(str)-RM)/N；
Firstly, building calculates RHC(sli)Model, using 17 years periods of mainstream as calculation basis, by first three ten annual flow data
Input model obtains the fit equation of runoff, and the average relative error of the equation is 4.14%, and fitting precision is preferable, therefore, 20
R after yearHC(sli)It calculates and obtains using the model；
Secondly, building calculates RC(str)Relational model, utilize yielding flow before current year and run-off measured data, structure
Established model is as follows:
Z=40.2378-0.2668x+0.0016x2, R2=0.85
In formula, Z represents mainstream annual runoff, and x indicates yielding flow, and the equation is that climate change generates by force source stream runoff
Before strong influence, with the relational model between the runoff of mainstream, thus, RC(str)Using rear 20 years source streams run-off measured data band
Enter the model and calculates acquisition
In the present invention, the implementation method of ecological implementation system specifically includes the following steps:
T1, remote sensing images analysis: river is implemented to monitor and analyze using remote sensing image technology；
T2, tree ring sampling and processing:
In order to analyze influence of the hydrological variation to diversiform-leaved poplar tree wheel standard chronology, meet sampling requirement, apart from river 500-
The diameter of a cross-section of a tree trunk 1.3 meters above the ground is chosen at 1000m to be sampled between the adult diversiform-leaved poplar of 30-50cm, chooses diversiform-leaved poplar 102 altogether, and each tree is handed over cross
Fork method obtains sample core, is altogether 191, diversiform-leaved poplar tree core sample is taken back laboratory is pasted, fixes, polishes etc. and pre-processes, with
Meet cross feedback control demand, during establishing chronology, for reservation as much as possible in tree-ring width chronologies low frequency side
Difference, using negative exponential curve or the straight line without the positive gradient is fitted Tree-ring width sequence, to remove the life of trees itself
Long trend finally obtains standardization year additionally using the variance of the further stable chronology of spline function of 2/3 sequence length
Table, many studies have shown that, the standardization chronology of diversiform-leaved poplar tree wheel can be well reflected the information of hydrological variation.
In the present invention, R in step S1 Chinese styleHFor source stream run-off, WdFor Water diversion, R1For River
Loss, FmFor Water volume into mainstream, RwFor Return water.
In the present invention, QR is section leakage in step S2, and K is infiltration coefficient, and W is that the water surface is wide, and L is that river is long, and hR is river
Road water level, is level of ground water under hG, and Δ L is river water recharge groundwater path length.
In the present invention, it is the accuracy for ensuring cross feedback control in step T2, utilizes LINTABTM6Type tree ring analyzer
Carry out annual ring width measurement.
In the present invention, cross feedback control inspection and life are carried out by COFECHA cross feedback control Quality Control Procedure in step T2
The amendment of long amount, the foundation of standard chronology are completed by ARSTAN program.
In Fig. 2, diversiform-leaved poplar tree wheel standard chronology is in believable public region Express population signal >
0.85, it can include more environmental information, and the Mean sensitivity of four section samples is all greater than 0.2, show recklessly
Poplar annual ring growth it is quite sensitive to the response of hydrological variation, can use correlation function technique study diversiform-leaved poplar growth with the hydrology because
Relationship between son, Mean correlation with master have the larger value, show the radial growth of annual ring between each strain
It is more consistent, it is the result by similar hydrology Effects of Factors.
Embodiment
In Tarim River basin source stream area, based on the needs for protecting and restoring mainstream river ecosystem, using the river
Ecological recovery system, source stream area constantly mention after the implementation of " large watershed " comprehensive management mode to the degree of protection of mainstream amount of water to be discharged
Height, such as at 2011 of " large watershed " integrated management implementation, the anomaly percentage of source stream run-off was -4.1%, mainstream runoff
The anomaly percentage of amount is 12.6%, and in 2008, the anomaly percentage of source stream run-off is -1.8%, mainstream run-off
Anomaly percentage is -37.5%.In different periods, before " large watershed " integrated management is implemented (2006-2010), source stream flows into dry
The run-off of stream accounts for the 18.0% of source stream run-off, and (2011-2017) increases to 22.3% after implementing, Tarimhe River source stream
The river loss in area is mainly used for feeding the Water Requirement of two sides natural vegetation system, before " large watershed " integrated management implementation
Afterwards, river loss in source stream area averagely increases 6.8%, and the water for being used for national economic system averagely reduces 13.4%, spy
Not in 2011-2017, water diversion, which accounts for source stream, to be carried out the ratio of water and has dropped 24.2%, is in summary analyzed, in " large watershed "
Front and back is implemented in integrated management, and Tarimhe River source stream area presents for the water diversion of national economy and reduces, and feeder two sides day
The river damage amount and mainstream run-off of right vegetation system ecological water, which are presented, to be increased.
In Tarimhe River, the anomaly percentage of Lai Shuiliang is mainly negative value in 2006-2010, and in 2011-2017,
Only there is negative value in the basin drought year in 2014, so that important water source is provided for mainstream natural vegetation ecological protection, from
Ecology supplies water and the analysis of national economy water supply process, and in the high flow year, the accounting of Tarimhe River national economy diversion is lower than the low flow year,
And the accounting that ecology supplies water is higher than the low flow year.Such as 2010 and 2017, the accounting that ecology supplies water is respectively 86.3% He
86.5%, and (low flow year) in 2009 and 2014, the accounting that ecology supplies water drops to 75.2% and 64.8%, this is because
Low flow year, the primary national economy rigidity water demand for ensureing Tarimhe River；And the area natural vegetation wanes 3 years in water demand for natural service
It just will appear significant degradation afterwards, therefore can suitably reduce ecological water supply in the low flow year, for ecological way of supplying water, low flow year master
It to dissipate by river penetration recharge groundwater supply transpiration, and in the high flow year, river underground water is largely being fed
Meanwhile mainly being overflowed by river and feeding ecological water, in conjunction with table 1 it is found that after " large watershed " integrated management implementation, Tarimhe River
Ecological water supply increase 9.9%, wherein water amount of seepage and water of overflowing have increased separately 18.1% and 5.9%.
A large amount of research has shown that the ecosystem of Tarimhe River is restored and good protection after 2000, has
The increase of the present species diversity of body surface, the lifting of level of ground water, improvement of water quality etc..
The average value of Tarimhe River natural vegetation coverage increases trend (Zvalue=3.11 > Z in significant0.05=
1.96), significant reduction trend (that is, soil presentation humidification) is presented in the average value of TVDI.In " large watershed " integrated management reality
Front and back (2000-2010 and 2011-2017) is applied, the average value of natural vegetation coverage increases 19.1%, and TVDI is reduced
16.6%.According to the spatial distribution of Tarimhe River natural vegetation coverage variation tendency it is found that the natural plant of 65.4% area
Coating cover degree is in increase trend, wherein the natural vegetation coverage of 33.7% area increases trend in significant, is mainly distributed on
Apart from river compared with close, the preferable region of moisture condition.In addition, the natural vegetation coverage of 14.3% area becomes in significant decline
Gesture, be mainly distributed on apart from river farther out, the poor region of moisture condition；In conjunction with field inspection, the area natural vegetation mainly with
Based on aged diversiform-leaved poplar, and frequently suffer from pest and disease damage invasion.
In conjunction with the interpretation result to Tarimhe River remote sensing image it is found that in 2000-2010, the annual increment rate of cultivated area
It is 5.0%, and 2010-2017 annual increment rate is reduced to 0.6%；Since natural vegetation has been occupied in arable land expansion, lead to 2000-
The year slip of natural vegetation in 2010 is 0.7%；And 2010-2017 behind, the year slip decline of natural vegetation
To 0.3%
In summary result of study is it is found that after " large watershed " integrated management implementation, and not only natural vegetation is opened up wasteland on a large scale
It is effectively managed at the phenomenon that arable land, and natural vegetation coverage and TVDI are all in significant increase trend, are shown in tower
The ecosystem in the wooden river is able to benign development
In Tarimhe River, diversiform-leaved poplar relies primarily on its growth of the underground water supply of river penetration supply.Therefore, diversiform-leaved poplar grows
Speed can reflect the superiority and inferiority of Tarimhe River moisture condition.River penetration water is reconstructed using tree-ring width index, to announcement river ecological
Hydrology evolution process is of great significance.By taking turns standard chronology and run-off two to 1957-2016 Tarimhe River diversiform-leaved poplar tree
Person carries out Pearson correlation test it is found that the correlation of the two reaches extremely significant level, specifically, in Yingbazha and
Wusiman section, diversiform-leaved poplar tree wheel standard chronology and run-off all reach extremely significant correlativity, and (incidence coefficient is in Yingbazha
For 0.390, Wusiman 0.400, the P < 0.01 in two sites).Therefore, (the 2011- after " large watershed " integrated management implementation
2016), with the increase of Tarimhe River run-off, diversiform-leaved poplar tree takes turns standard chronology compared to (2000-2010) before integrated management
19.4% is increased, and run-off increases 12.2% in corresponding two periods.Specifically, in Yingbazha section, diversiform-leaved poplar
For tree wheel standard chronology 6.9% before and after " large watershed " integrated management, run-off increases 60.0%；In Wusiman section, diversiform-leaved poplar
Tree wheel standard chronology and run-off have increased separately 28.6% and 86.5%.Therefore, after " large watershed " integrated management is implemented, tower
In the wooden increased run-off in river effectively facilitated the growth of diversiform-leaved poplar, the functional stabilization for maintaining desert riverbank Populus Euphratica group is risen
To key effect.
After " large watershed " integrated management is implemented, water resource-ecology-economy composite system of Tarim River basin, which is presented, to be coordinated
And sustainable development.It is in particular in, 1, the ecological water supply of Tarim River basin, mainstream run-off (i.e. Tarimhe River), day
Right vegetation coverage, the growth of diversiform-leaved poplar tree wheel and GDP are all in apparent increase trend；2, shadow of the source stream area mankind's activity to water resource
Remitted its fury is rung, natural vegetation area, which is presented, to be expanded；3, Tarimhe River (i.e. mainstream) natural vegetation is opened up wasteland into arable land on a large scale
The phenomenon that effectively managed, soil present humidification (TVDI is substantially reduced).Therefore, " large watershed " of Tarim River basin is comprehensive
Closing management system has good exemplary role and reference value to arid biogeographic zone analogy basin.
In Arid Area, river ethic is converted into underground water supply plant transpiration by river penetration, therefore in tower
The wooden river diversiform-leaved poplar tree-ring width index and the relevance of river penetration water (incidence coefficient 0.843) variation are better than run-off (incidence coefficient
0.358).River water amount of seepage is reconstructed using tree ring, is not only had to the Eco-hydrological evolution process for disclosing Arid Area
It is significant, also scientific basis is provided to the artificial regulatory scheme for formulating ecological water.In Tarimhe River, river penetration is (natural
Supply) and ecological lock diversion overflow (artificial regulatory) be ecology water supply two ways.River is seeped according to diversiform-leaved poplar tree-ring width index
The reconstruction result of water leakage, the angle efficiently utilized from ecological water, when Tarimhe River run-off is greater than 43.1 × 108m3When, Ying Tong
Ecological lock is crossed to overflow to natural vegetation progress diversion.Therefore, under " large watershed " integrated management system, it should ensure that source stream Qu Xianggan
It flows Tarimhe River amount of water to be discharged and is not less than 43.1 × 108m3。
By " large watershed " integrated management system, overflows to Tarimhe River ecology lock diversion and optimize regulation, mode
Are as follows: by overflow maintain riverbank twice level of ground water in 2-6m；The angle restored from natural vegetation ensures in 7-9 month to tower
In the wooden river natural vegetation carries out 1 year 2-3 times, 15-20 days each duration overflowed；The angle protected from natural vegetation, 3 years
Inside guarantee that natural vegetation overflow at least 1 time 15-20 days in 7-9 month, this research is arid biogeographic zone analogy basin
The ecosystem and groundwater optimal management provide scientific basis
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of river ecological Restoration system, including river ecological data analysis system and ecological implementation system, it is characterised in that:
The analysis method of river ecological data analysis system specifically includes the following steps:
S1, water balanced calculation, water balanced calculation formula are as follows: RH=Wd+Rl+Fm-Rw；
S2, water amount of seepage calculate, according to Darcy's law, the calculation formula of Tarim River water amount of seepage are as follows: QR=KW
L·(hR-hG)/ΔL；
The separation reasoning of S3, climate change and mankind's activity to Southeast Tibetan Plateau amount: model stream is chosen, with 30 years before the river
On the basis of flow, by construction schedule be superimposed trend model predict to obtain rear 20 years run-offs, be by mankind's activity with
Natural runoff under climate change interference is smaller, is denoted as RHC(sli), secondly, in model stream, former 30 years yielding flows
With divide run-off to be foundation, relational model between the two is constructed, then, according to the runoff magnitude after 20 years, by having constructed
Model be calculated 20 years after climate change significantly affect under run-off, be denoted as RC(str), measured runoff after 20 years
It is denoted as RM, N is total year, and then, climate change every year on average and mankind's activity are public to the calculating of source stream area runoff influence amount
Formula are as follows:
Climate change effect amount every year on average: Δ RC=(RC(str)-RHC(sli))/N, effect of human activity amount every year on average: Δ RH
=(RC(str)-RM)/N；
Firstly, building calculates RHC(sli)Model inputs first three ten annual flow data using 17 years periods of mainstream as calculation basis
Model obtains the fit equation of runoff, and the average relative error of the equation is 4.14%, and fitting precision is preferable, therefore, after 20 years
RHC(sli)It calculates and obtains using the model, secondly, building calculates RC(str)Relational model, utilize total runoff before current year
Amount and run-off measured data, building model are as follows: Z=-40.2378-0.2668x+0.0016x2, R2=0.85；
In formula, Z represents mainstream annual runoff, and x indicates yielding flow, and the equation is that climate change generates strong shadow to source stream runoff
Before sound, with the relational model between the runoff of mainstream, thus, RC(str)This is brought into using rear 20 years source streams run-off measured data
Model, which calculates, to be obtained.
2. a kind of river ecological Restoration system according to claim 1, it is characterised in that: the reality of the ecology implementation system
Applying method specifically includes the following steps:
T1, remote sensing images analysis: river is implemented to monitor and analyze using remote sensing image technology；
T2, tree ring sampling and processing: in order to analyze influence of the hydrological variation to diversiform-leaved poplar tree wheel standard chronology, meet sampling and want
It asks, is sampled choosing the diameter of a cross-section of a tree trunk 1.3 meters above the ground at river 500-1000m between the adult diversiform-leaved poplar of 30-50cm, chooses diversiform-leaved poplar 102 altogether
, and each tree obtains sample core with crossing method, is altogether 191, and diversiform-leaved poplar tree core sample is taken back laboratory and is pasted, admittedly
The pretreatments such as fixed, polishing, to meet cross feedback control demand, during establishing chronology, in order to most in tree-ring width chronologies
Reservation low frequency variance more than possible, using negative exponential curve or the straight line without the positive gradient is fitted Tree-ring width sequence,
To remove the growth tendency of trees itself, additionally using the variance of the further stable chronology of spline function of 2/3 sequence length,
Standardization chronology is finally obtained, many studies have shown that, the standardization chronology of diversiform-leaved poplar tree wheel can be well reflected hydrological variation
Information.
3. a kind of river ecological Restoration system according to claim 1, it is characterised in that: R in the step S1 Chinese styleHFor
Source stream run-off, WdFor Water diversion, R1For River loss, FmFor Water volume into
Mainstream, RwFor Return water.
4. a kind of river ecological Restoration system according to claim 1, it is characterised in that: QR is section in the step S2
Leakage, K are infiltration coefficient, and W is that the water surface is wide, and L is that river is long, and hR is river water level, are level of ground water under hG, and Δ L is urban river water
Measure recharge groundwater path length.
5. a kind of river ecological Restoration system according to claim 2, it is characterised in that: be to ensure to hand in the step T2
Fork determines the accuracy in year, utilizes LINTABTM6Type tree ring analyzer carries out annual ring width measurement.
6. a kind of river ecological Restoration system according to claim 2, it is characterised in that: in the step T2 by
COFECHA cross feedback control Quality Control Procedure carries out cross feedback control and examines and the amendment of increment, the foundation of standard chronology by
ARSTAN program is completed.
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