CN102428858A - Forest vegetation degrading level evaluation method - Google Patents
Forest vegetation degrading level evaluation method Download PDFInfo
- Publication number
- CN102428858A CN102428858A CN2011102695251A CN201110269525A CN102428858A CN 102428858 A CN102428858 A CN 102428858A CN 2011102695251 A CN2011102695251 A CN 2011102695251A CN 201110269525 A CN201110269525 A CN 201110269525A CN 102428858 A CN102428858 A CN 102428858A
- Authority
- CN
- China
- Prior art keywords
- forest
- img
- degrading
- level
- growth
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/40—Afforestation or reforestation
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention belongs to the technical field of forest vegetation degrading evaluation, and is used for solving the problems of large scale range and inconvenient application of a conventional forest vegetation degrading evaluation method. The forest vegetation degrading level evaluation method comprises the following steps: 1, field investigation: 1.1, stand level degrading, and 1.2, individual plant level degrading investigation; and 2, indoor data processing and degrading level calculation: 2.1, stand level degrading level calculation, 2.2, individual plant level degrading grade calculation, and 2.3, general degrading level evaluation. The evaluation method provided by the invention has the beneficial effects that: by means of application of the evaluation method, the vegetation degrading degree of a construction area is scientifically and quantitatively divided, and different restoring technologies are selected according to the degrading degree, so that the forestation survival rate is comprehensively increased, and seedling after-culture and after-replace cost is saved. By the evaluation method provided by the invention, more remarkable social and economical benefits can be obtained along with comprehensive success of vegetation restoration and forestation construction in various regions.
Description
Technical field
The invention belongs to the technical field that the forest land vegetation degeneration is estimated.
Background technology
In recent decades, because the influence of mankind's activity and unfavorable natural cause, vegetation destruction and disappearance cause a series of environment disruption problem.Whole world bio-diversity is in continuous forfeiture, and the ecosystem is being degenerated gradually, and regional degeneration is quite serious, and the natural basis of human survival and development has received very big threat.The research of vegetation degeneration has received extensive concern since the sixties in 20th century, initial interest be the shrubbery succession after the clear felling of grassland vegetation degeneration forest cover under the grazing condition.After China's extraodinary flood took place in 1998; Vegetation degeneration has caused national disaster to forest hydrology; Its loss is rare after the founding of the state, and this makes vegetation degeneration research be called the focus that academia pays close attention to, wherein; The origin cause of formation that forest cover degenerates and forest cover protection and recovery research are called the main flow of vegetation degeneration research field, and the region different to the whole nation carried out in the research space.Along with the maturation day by day of research theory, the research method of vegetation degeneration also is gradually improved, and since 21 century, application 3S technology more and more comes into one's own to the vegetation degeneration research of large space yardstick.Mostly evaluation for vegetation degeneration is for Grassland ecosystems; Its method has the quantitative ecology method; Like Feng Xiu etc. Inner Mongol sound tin is reined in the evaluation of pasture regional scale grassland degeneration, use two indicator species analyses and do not have inclined to one side correspondence analysis with the meadow be divided into slightly, moderate and 3 different brackets of moderate degeneration; Also have the difference of appliable plant group different times cover degree to judge the method for degeneration, to the dynamic Position Research of Minqin desert district vegetation degeneration,, draw the general serious degradation of fixed dune vegetation through the cover degree contrast like Zhang Yingchang etc.; Through the calculating of the volume of timber, importance value etc., carrying out resource assessment and then determining whether to degenerate also is a kind of method that vegetation degeneration is estimated, and different soils, torrid areas is utilized the research of stage vegetation resources degradation evaluation like Fu Yongneng etc.; Utilizing remote sensing vegetation index to carry out the vegetation degeneration evaluation is the main method that adopts of research at present; Like the vegetation degeneration evaluation based on NDVI-weather characteristics of variables space such as Sun Jianguo, Zhang Jian etc. utilize the vegetation degeneration on the typical grassland of grassland health index (GHI) monitoring etc.The comprehensive progress of vegetation degeneration both at home and abroad; Can find out that present research for vegetation degeneration concentrates in the restoration and reconstruction of degeneration vegetation mostly; Evaluation study for vegetation degeneration is very few; And mainly concentrate on the aspect, meadow, adopt remotely-sensed data analyze for the evaluation method of forest ecosystem vegetation degeneration more, but be subject to the precision of remotely-sensed data and the reliability of analytical method; And the defective that range scale is big; Will judge vegetation degeneration grade aspect in the open air more intuitively and have inconvenience, so the present invention is special proposes the method that a kind of easy forest land vegetation degeneration is estimated, for the field directly judge with in the future further research established certain basis.
Summary of the invention
Goal of the invention of the present invention is for the evaluation method that solves existing forest land vegetation degeneration exists range scale big, and should use the problem that has inconvenience.
The present invention adopts following technical scheme to realize:
A kind of forest land vegetation degeneration grade evaluation method is characterized in that step is following:
1), field investigation method:
1.1), standing forest level degeneration investigation method:
Forest Types in that the selection of research ground will be studied adopts the sampling area of some 20 m * 30 m to carry out the investigation of forest plants as sample prescription in typical location, writes down the habitat and the forest form characteristic of each different sample prescriptions, measures the crown density of tree stratum; While selection standard wood in sample prescription carries out the mensuration of ground biomass; After sample tree cuts down; Trunk part till from base portion to nearest annual branch attachment region; By 0.0 m place (base portion), 1.3 m places and above all with the fresh weight of every section of 2 m segmentations actual measurement, the disk of every section intercepting thickness 2 cm～5 cm is the sample of trunk, takes by weighing fresh weight; Live branch and leaf by the upper, middle and lower 3 parts fresh weight of weighing branch and leaf respectively, every part be taken at random lack 200 g and the sample of leaf take by weighing fresh weight; In four jiaos of kind name, strain (clump) number, cover degrees of establishing subquadrat investigation arbor seedling, shrub and the draft of 55 m * 5 m altogether of each sample prescription with central authorities; Simultaneously the grass of the filling in 5 sample prescriptions plant is all gathered in the crops; The fresh weight that divides its stem of another name, branch, leaf is taken back taking by weighing stem, the bright appearance of branches and leaves 500～1000 g plastic sack (bright kind of less than 500 g with its whole results) of packing into respectively; The arbor of taking back, shrub and herbaceous plant sample warp are dried to constant weight for 80～105 ℃, calculate moisture content, calculate arbor in kind ground, shrub and herbaceous plant unit are (hm according to moisture content meter
2) on biomass, simultaneously selection criteria wood adopts and carries out the geodyte quantitative determination with quadrat method in the normal standing forest of growth is selected in the locality;
1.2), individual plant level degeneration investigation method
In whole research ground, select 6 strain dominant trees; Select in the side shoot of east, every dominant tree middle and upper part of investigation records, south, west, north four direction to reflect the branch of putting in order the average growth and development state of strain tree; Begin from the side shoot tip of a branch; Along the inserted part of side shoot and major branch, measure the long amount of growth of giving birth to side shoot then, write down growing state, crown canopy situation, damage by disease and insect situation, the smooth degree of bark and the perfectly straight degree of trunk of branches and leaves simultaneously; And use thermal pulse velograph (Heat Pulse Velocity Recorder is called for short HPVR) and measure and write down 6 strain dominant tree stem sap flow data; Use the mensuration of carrying out above each item index with quadrat method selective advantage wood 6 strains in normal standing forest is grown in the locality simultaneously, as reference;
2), indoor data and degradation level are calculated
2.1), the calculating of the horizontal degradation level of standing forest
The horizontal degradation evaluation index of standing forest is:
Wherein: n=1,2 ... 4, the expression item number;
is the tax branch of i project;
The tax branch of projects index is seen table 1, and wherein biological value is the ratio of ground biomass with the normal sample tree ground biomass of growth of degeneration standing forest sample tree; Tall filling straw mulch degree is three level cover degree sums,
2.2), the calculating of the horizontal degradation level of individual plant
The horizontal degradation evaluation index of individual plant is:
Wherein: n=1,2,3, expression individual plant item number;
is that all dominant tree i projects are composed the mean value that divides, and wherein do not comprise the growth potential project; M=1,2,3,4, expression growth potential item number;
is that all dominant tree j projects are composed the mean value that divides;
The tax branch of projects index is seen table 2, and wherein the year increment value is the high then amount of growth of side shoot of assessment appearance ground dominant tree and the ratio of the normal forest land of growth dominant tree type strain side shoot year increment mean value; The stem sap flow valuve is the individual plant dominant tree stem sap flow on assessment appearance ground and the ratio of the normal 6 strain dominant tree stem sap flow mean values of growth;
2.3), the evaluation method of overall degradation level
Overall performane is:
Z=(
D+
L)/2
Wherein:<i >D</i>With<i >L</i>Meaning with individual plant and the horizontal degradation level of standing forest; When<img file="378453DEST_PATH_IMAGE007.GIF" he="18" img-content="drawing" img-format="GIF" inline="no" orientation="portrait" wi="17" /><1.5 the time, show that the forest land vegetation growth is normal; 1.5<<img file="518447DEST_PATH_IMAGE007.GIF" he="18" img-content="drawing" img-format="GIF" inline="no" orientation="portrait" wi="17" /><2.5 the time, show that the forest land vegetation growth is normal basically; 2.5<<img file="691939DEST_PATH_IMAGE007.GIF" he="18" img-content="drawing" img-format="GIF" inline="no" orientation="portrait" wi="17" /><3.5 the time, show that the forest land vegetation has begun to show degeneration; 3.5<<img file="109145DEST_PATH_IMAGE007.GIF" he="18" img-content="drawing" img-format="GIF" inline="no" orientation="portrait" wi="17" /><4.5 the time, show forest land vegetation serious degradation;<img file="77101DEST_PATH_IMAGE007.GIF" he="18" img-content="drawing" img-format="GIF" inline="no" orientation="portrait" wi="17" >4.5 the time, show that the forest land arbor is dying.
The present invention has following beneficial effect:
[0006]Through the application of this evaluation method, science, quantitative zoning engineering district vegetation degeneration degree are chosen distinguishing recovering technology according to degree of degeneration, improve survival rate comprehensively, save the nursery stock after-culture and mend the expense of planting.Along with the thorough success of various places revegetation and afforested project, the present invention will obtain remarkable social benefit and economic benefit more.
Embodiment
Further specify in conjunction with the accompanying drawing specific embodiments of the invention.
The present invention selects the Chinese pine forest ecosystem in mining area, Taiyuan as application, and the forest cover under its three mining rates is investigated, and has drawn the utmost points such as degeneration of Chinese pine woods forest land vegetation under the different mining rates, and the practical implementation briefing is following.
Before optional test point, on-site survey earlier comprehensively this mining area, to guarantee the representativeness on selected appearance ground.According to the needs of research, the yield (t/km on the unit are is chosen according to the statistics of the coal mining in A ore deposit, B ore deposit, C ore deposit in research ground
2) for criteria is three gradients, be respectively T1 A ore deposit 21.1 ten thousand t/km
2, T2 B ore deposit 23.2 ten thousand t/km
2, T3 C ore deposit 28.7 ten thousand t/km
2, this exploitation gradient is increased to the T3 mining rate by T1 gradually.
1. field investigation method:
1.1 standing forest level degeneration investigation method
In the Forest Types that the selection of research ground will be studied, the sampling area of setting up 3 20 m * 30 m in typical location carries out the investigation of forest plants as sample prescription, writes down the habitat and the forest form characteristic of each different sample prescriptions, measures the crown density (seeing table 3) of tree stratum; While selection standard wood in sample prescription carries out the mensuration of ground biomass; After sample trees cut down; Trunk part till from base portion to nearest annual branch attachment region; By 0.0 m place (base portion), 1.3 m places and above all with the fresh weight of every section of 2 m segmentations actual measurement, the disk of every section intercepting thickness 2 cm～5 cm is the sample of trunk, takes by weighing fresh weight; Live branch and leaf by the upper, middle and lower 3 parts fresh weight of weighing branch and leaf respectively, every part be taken at random lack 200 g and the sample of leaf take by weighing fresh weight; In four jiaos of kind name, strain (clump) number, cover degrees of establishing subquadrat investigation arbor seedling, shrub and the draft of 55 m * 5 m altogether of each sample prescription with central authorities; Simultaneously the grass of the filling in 5 sample prescriptions plant is all gathered in the crops; The fresh weight that divides its stem of another name, branch, leaf takes by weighing stem, the bright appearance of branches and leaves 500～1000 g plastic sack (bright kind of less than 500 g with its whole results) of packing into more respectively and takes back; The arbor of taking back, shrub and herbaceous plant sample warp are dried to constant weight for 80～105 ℃, calculate moisture content, calculate arbor in kind ground, shrub and herbaceous plant unit are (hm according to moisture content meter
2) on biomass, simultaneously selection criteria wood adopts and carries out geodyte quantitative determination (seeing table 4) with quadrat method in the normal standing forest of growth is selected in the locality;
1.2 individual plant level degeneration investigation method
In whole research ground, select 6 strain dominant trees; Select in the side shoot of east, every dominant tree middle and upper part of investigation records, south, west, north four direction to reflect the branch of putting in order the average growth and development state of strain tree; Begin from the side shoot tip of a branch; Along the inserted part of side shoot and major branch, measure the long amount of growth of giving birth to side shoot then, write down growing state, crown canopy situation, damage by disease and insect situation, the smooth degree of bark and the perfectly straight degree of trunk of branches and leaves simultaneously; And use thermal pulse velograph (Heat Pulse Velocity Recorder is called for short HPVR) and measure and write down 6 strain dominant tree stem sap flow data; Use the mensuration of carrying out above each item index with quadrat method selective advantage wood 6 strains in normal standing forest is grown in the locality simultaneously, as reference.
2. indoor data and degradation level are calculated
2.1 the calculating of the horizontal degradation level of standing forest
The horizontal degradation evaluation index of standing forest is:
Wherein: n=1,2 ... 4, the expression item number;
is the tax branch of i project;
The tax branch of projects index is seen table 5, and wherein biological value is the ratio of ground biomass with the normal sample tree ground biomass of growth of degeneration standing forest sample tree; Tall filling straw mulch degree is three level cover degree sums,
2.2 the calculating of the horizontal degradation level of individual plant
The horizontal degradation evaluation index of individual plant is:
Wherein: n=1,2,3, expression individual plant item number;
is that all dominant tree i projects are composed the mean value that divides, and wherein do not comprise the growth potential project; M=1,2,3,4, expression growth potential item number;
is that all dominant tree j projects are composed the mean value that divides;
The tax branch of projects index is seen table 6, and wherein the year increment value is the high then amount of growth of side shoot of assessment appearance ground dominant tree and the ratio of the normal forest land of growth dominant tree type strain side shoot year increment mean value; The stem sap flow valuve is the individual plant dominant tree stem sap flow on assessment appearance ground and the ratio of the normal 6 strain dominant tree stem sap flow mean values of growth;
2.3 the evaluation method of overall degradation level
Overall performane is:
Z=(
D+
L)/2
Wherein:<i >D</i>With<i >L</i>Meaning with individual plant and the horizontal degradation level of standing forest; When<img file="464493DEST_PATH_IMAGE007.GIF" he="18" img-content="drawing" img-format="GIF" inline="no" orientation="portrait" wi="17" /><1.5 the time, show that the forest land vegetation growth is normal; 1.5<<img file="304273DEST_PATH_IMAGE007.GIF" he="18" img-content="drawing" img-format="GIF" inline="no" orientation="portrait" wi="17" /><2.5 the time, show that the forest land vegetation growth is normal basically; 2.5<<img file="316091DEST_PATH_IMAGE007.GIF" he="18" img-content="drawing" img-format="GIF" inline="no" orientation="portrait" wi="17" /><3.5 the time, show that the forest land vegetation has begun to show degeneration; 3.5<<img file="15057DEST_PATH_IMAGE007.GIF" he="18" img-content="drawing" img-format="GIF" inline="no" orientation="portrait" wi="17" /><4.5 the time, show forest land vegetation serious degradation;<img file="872154DEST_PATH_IMAGE007.GIF" he="18" img-content="drawing" img-format="GIF" inline="no" orientation="portrait" wi="17" >4.5 the time, show that the forest land arbor is dying.
The field investigation method is fully according to the carrying out of being introduced in the research method; Respectively in representational location; Setting up area is 3 typical case's appearance ground of 20 m * 30 m; Write down habitat, forest form characteristic, tall each the species name of grass of irritating of each sample prescription respectively, measured three layers of cover degree separately of tall filling grass, chosen sample tree application trunk analytic method and the full harvest method of sample prescription simultaneously and recorded the biomass of group.Appearance under each mining rate is selected 6 strain advantage Chinese pines respectively in the ground, investigated the long current increment of side shoot, record branches and leaves growing state, crown canopy situation, damage by disease and insect situation, bark smooth degree and trunk perfectly straight degree, and measure the stem sap flow data of selected Chinese pine with the thermal pulse velograph.Select normal Chinese pine 6 strains of local growth as contrast simultaneously, measured the current increment and the stem sap flow of corresponding biomass, side shoot.
Calculated by the method for the data based this patent that records, process such as following table 7,8,9,10,11 are composed branch, the score value that obtains Chinese pine woods standing forest level and each index of the average individual plant level of dominant tree under three mining rates like following table 12 with shown in the table 13.
Can draw according to formula, the degradation level under three exploitations of standing forest level gradient is:
L T1=(3+3+3+4)/4=3.25;
L T2=(4+4+3+4)/4=3.75;
?L T3=(5+4+5+5)/4=4.75
Degradation level mean value under three exploitations of individual plant level gradient is:
D T1=[2+(3+3+2+3)/4+3+2]/4=2.44;
D T2=[2+(4+4+3+3)/4+4+3]/4=3.125;
D T3=[4+(5+5+3+3)/4+4+3]/4=3.75
This shows that three degradation level of exploiting Chinese pine woods under the gradient are:
Z T1=(3.25+2.44)/2=2.85;
Z T2=(3.75+3.125)/2=3.44;
Z T3=(4.75+3.75)/2=4.25
So drawing the degradation level of Chinese pine woods under three exploitation gradients is respectively: T1 and T2 forest land vegetation have begun to show degeneration, T3 forest land vegetation serious degradation.
Claims (1)
1. forest land vegetation degeneration grade evaluation method is characterized in that step is following:
1), field investigation method:
1.1), standing forest level degeneration investigation method:
Forest Types in that the selection of research ground will be studied adopts the sampling area of some 20 m * 30 m to carry out the investigation of forest plants as sample prescription in typical location, writes down the habitat and the forest form characteristic of each different sample prescriptions, measures the crown density of tree stratum; While selection standard wood in sample prescription carries out the mensuration of ground biomass; After sample tree cuts down; Trunk part till from base portion to nearest annual branch attachment region; By 0.0 m place, 1.3 m places and above all with the fresh weight of every section of 2 m segmentations actual measurement, the disk of every section intercepting thickness 2 cm～5 cm is the sample of trunk, takes by weighing fresh weight; Live branch and leaf by the upper, middle and lower 3 parts fresh weight of weighing branch and leaf respectively, every part be taken at random lack 200 g and the sample of leaf take by weighing fresh weight; In four jiaos of kind name, strain or clump number, cover degrees of establishing subquadrat investigation arbor seedling, shrub and the draft of 55 m * 5 m altogether of each sample prescription with central authorities; Simultaneously the grass of the filling in 5 sample prescriptions plant is all gathered in the crops; The fresh weight that divides its stem of another name, branch, leaf; Take back taking by weighing the bright appearance of stem, branches and leaves 500～1000 g plastic sack of packing into respectively, bright appearance less than 500 g with its all results take back; The arbor of taking back, shrub and herbaceous plant sample warp are dried to constant weight for 80～105 ℃, calculate moisture content, calculate arbor in kind ground, shrub and herbaceous plant unit are hm according to moisture content meter
2On biomass, simultaneously selection criteria wood adopts and carries out the geodyte quantitative determination with quadrat method in the normal standing forest of growth is selected in the locality;
1.2), individual plant level degeneration investigation method:
In whole research ground, select 6 strain dominant trees; Select in the side shoot of east, every dominant tree middle and upper part of investigation records, south, west, north four direction to reflect the branch of putting in order the average growth and development state of strain tree; Begin from the side shoot tip of a branch; Inserted part along side shoot and major branch; Measure the long amount of growth of giving birth to side shoot then, write down growing state, crown canopy situation, damage by disease and insect situation, the smooth degree of bark and the perfectly straight degree of trunk of branches and leaves simultaneously, and use the thermal pulse velograph and measure and write down 6 strain dominant tree stem sap flow data; Use the mensuration of carrying out above each item index with quadrat method selective advantage wood 6 strains in normal standing forest is grown in the locality simultaneously, as reference;
2), indoor data and degradation level are calculated:
2.1), the calculating of the horizontal degradation level of standing forest:
The horizontal degradation evaluation index of standing forest is:
Wherein: n=1,2 ... 4, the expression item number;
is the tax branch of i project;
The tax branch of projects index is seen table 1, and wherein biological value is the ratio of ground biomass with the normal sample tree ground biomass of growth of degeneration standing forest sample tree; Tall filling straw mulch degree is three level cover degree sums,
2.2), the calculating of the horizontal degradation level of individual plant:
The horizontal degradation evaluation index of individual plant is:
Wherein: n=1,2,3, expression individual plant item number;
is that all dominant tree i projects are composed the mean value that divides, and wherein do not comprise the growth potential project; M=1,2,3,4, expression growth potential item number;
is that all dominant tree j projects are composed the mean value that divides;
The tax branch of projects index is seen table 2, and wherein the year increment value is the high then amount of growth of side shoot of assessment appearance ground dominant tree and the ratio of the normal forest land of growth dominant tree type strain side shoot year increment mean value; The stem sap flow valuve is the individual plant dominant tree stem sap flow on assessment appearance ground and the ratio of the normal 6 strain dominant tree stem sap flow mean values of growth;
2.3), the evaluation method of overall degradation level:
Overall performane is:
Z=(
D+
L)/2,
Wherein:<i >D</i>With<i >L</i>Meaning with individual plant and the horizontal degradation level of standing forest; When<img file="476113DEST_PATH_IMAGE007.GIF" he="18" id="ifm0008" img-content="drawing" img-format="GIF" inline="no" orientation="portrait" wi="17" /><1.5 the time, show that the forest land vegetation growth is normal; 1.5<<img file="547975DEST_PATH_IMAGE007.GIF" he="18" id="ifm0009" img-content="drawing" img-format="GIF" inline="no" orientation="portrait" wi="17" /><2.5 the time, show that the forest land vegetation growth is normal basically; 2.5<<img file="581659DEST_PATH_IMAGE007.GIF" he="18" id="ifm0010" img-content="drawing" img-format="GIF" inline="no" orientation="portrait" wi="17" /><3.5 the time, show that the forest land vegetation has begun to show degeneration; 3.5<<img file="182404DEST_PATH_IMAGE007.GIF" he="18" id="ifm0011" img-content="drawing" img-format="GIF" inline="no" orientation="portrait" wi="17" /><4.5 the time, show forest land vegetation serious degradation;<img file="176905DEST_PATH_IMAGE007.GIF" he="18" id="ifm0012" img-content="drawing" img-format="GIF" inline="no" orientation="portrait" wi="17" >4.5 the time, show that the forest land arbor is dying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102695251A CN102428858B (en) | 2011-09-13 | 2011-09-13 | Forest vegetation degrading level evaluation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102695251A CN102428858B (en) | 2011-09-13 | 2011-09-13 | Forest vegetation degrading level evaluation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102428858A true CN102428858A (en) | 2012-05-02 |
| CN102428858B CN102428858B (en) | 2013-07-10 |
Family
ID=45977495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102695251A Active CN102428858B (en) | 2011-09-13 | 2011-09-13 | Forest vegetation degrading level evaluation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102428858B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335953A (en) * | 2013-06-04 | 2013-10-02 | 中国科学院遥感与数字地球研究所 | Remote sensing evaluation method for crop growing trend combined with characters of individuals and groups |
| CN106165571A (en) * | 2016-07-12 | 2016-11-30 | 交通运输部科学研究院 | A kind of vegetation restorability evaluation methodology based on investigation with factor correction |
| CN108535452A (en) * | 2018-05-07 | 2018-09-14 | 内蒙古蒙草生态环境（集团）股份有限公司 | A kind of grassland desertification stage division and its application |
| CN109169139A (en) * | 2018-10-16 | 2019-01-11 | 东北林业大学 | A kind of main stream of Songhua River dyke shelter-forest allocation plan integrated evaluating method |
| CN110687166A (en) * | 2019-10-22 | 2020-01-14 | 北京林业大学 | Real-time nondestructive evaluation method and device for life vitality of arbor and electronic equipment |
| CN111582690A (en) * | 2020-04-28 | 2020-08-25 | 深圳文科园林股份有限公司 | Ground cover plant evaluation method, terminal and computer readable storage medium |
| CN112514591A (en) * | 2020-12-10 | 2021-03-19 | 黑龙江省科学院自然与生态研究所 | Method for improving carbon fixation amount of mildly degraded leymus chinensis meadow vegetation |
-
2011
- 2011-09-13 CN CN2011102695251A patent/CN102428858B/en active Active
Non-Patent Citations (5)
| Title |
|---|
| JOHN A.LUDWIG ET AL: "monitoring ecological indicators of rangeland functional integrity and biodiversity at local to regional scales", 《AUSTRAL ECOLOGY》 * |
| 安雁等: "植被退化定量监测与评价研究进展", 《山西林业科技》 * |
| 董杰等: "三峡库区紫色土坡地土壤退化程度评价及驱动机制", 《水土保持通报》 * |
| 贾科利等: "陕北农牧交错带土地利用变化环境效应", 《干旱区研究》 * |
| 赵雨森: "半干旱退化草牧场造林立地类型划分、评价与适地适树研究", 《中国生态农业学报》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335953A (en) * | 2013-06-04 | 2013-10-02 | 中国科学院遥感与数字地球研究所 | Remote sensing evaluation method for crop growing trend combined with characters of individuals and groups |
| CN106165571A (en) * | 2016-07-12 | 2016-11-30 | 交通运输部科学研究院 | A kind of vegetation restorability evaluation methodology based on investigation with factor correction |
| CN108535452A (en) * | 2018-05-07 | 2018-09-14 | 内蒙古蒙草生态环境（集团）股份有限公司 | A kind of grassland desertification stage division and its application |
| CN109169139A (en) * | 2018-10-16 | 2019-01-11 | 东北林业大学 | A kind of main stream of Songhua River dyke shelter-forest allocation plan integrated evaluating method |
| CN110687166A (en) * | 2019-10-22 | 2020-01-14 | 北京林业大学 | Real-time nondestructive evaluation method and device for life vitality of arbor and electronic equipment |
| CN111582690A (en) * | 2020-04-28 | 2020-08-25 | 深圳文科园林股份有限公司 | Ground cover plant evaluation method, terminal and computer readable storage medium |
| CN112514591A (en) * | 2020-12-10 | 2021-03-19 | 黑龙江省科学院自然与生态研究所 | Method for improving carbon fixation amount of mildly degraded leymus chinensis meadow vegetation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102428858B (en) | 2013-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Brümmer et al. | How climate and vegetation type influence evapotranspiration and water use efficiency in Canadian forest, peatland and grassland ecosystems | |
| CN102428858B (en) | Forest vegetation degrading level evaluation method | |
| Mkhabela et al. | Comparison of carbon dynamics and water use efficiency following fire and harvesting in Canadian boreal forests | |
| Sun et al. | Effects of forest structure on hydrological processes in China | |
| Brown et al. | Impact of mountain pine beetle on the net ecosystem production of lodgepole pine stands in British Columbia | |
| Syed et al. | Environmental control of net ecosystem CO2 exchange in a treed, moderately rich fen in northern Alberta | |
| Latreille et al. | Variability of the climate-radial growth relationship among Abies alba trees and populations along altitudinal gradients | |
| Close et al. | Urban vs. natural sugar maple growth: I. Stress symptoms and phenology in relation to site characteristics | |
| Liu et al. | Dry‐season water utilization by trees growing on thin karst soils in a seasonal tropical rainforest of Xishuangbanna, Southwest China | |
| Urban et al. | Tree allometry of Douglas fir and Norway spruce on a nutrient-poor and a nutrient-rich site | |
| Gong et al. | Soil respiration in poplar plantations in northern China at different forest ages | |
| Tsakaldimi et al. | A comparison of root architecture and shoot morphology between naturally regenerated and container-grown seedlings of Quercus ilex | |
| Uri et al. | The carbon balance of a six-year-old Scots pine (Pinus sylvestris L.) ecosystem estimated by different methods | |
| St-Denis et al. | The role of gaps and tree regeneration in the transition from dense to open black spruce stands | |
| Liu et al. | Partitioning tree water usage into storage and transpiration in a mixed forest | |
| Lee et al. | The resilience of the carbon cycles of temperate coniferous and broadleaved forests to drought | |
| Dy et al. | Frost hollows of the boreal forest as extreme environments for black spruce tree growth | |
| Yang et al. | Prediction of changes in soil moisture associated with climatic changes and their implications for vegetation changes: WAVES model simulation on Taihang Mountain, China | |
| Namirembe et al. | Manipulating phenology and water relations in Senna spectabilis in a water limited environment in Kenya | |
| Frost et al. | Hydrologic variation of stemflow yield across co‐occurring dominant canopy trees of varying mortality | |
| Lu et al. | Instantaneous and long-term CO2 assimilation of Platycladus orientalis estimated from 13C discrimination | |
| Wang et al. | Responses of tree islands to air temperature change at treeline on north-facing slopes of the Changbai Mountains | |
| Wöll | Treeline of mountain birch (Betula pubescens Ehrh.) in Iceland and its relationship to temperature | |
| Cui et al. | Distributions of fine and coarse tree roots in a semi-arid mountain region and their relationships with soil properties | |
| Snedden | The root distribution, architecture, transpiration and root sapflow dynamics of mature trembling aspen (Populus tremuloides) growing along a hillslope |
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 |