This standard specifies the levels and indicators of natural grassland degradation, desertification and salinization. This standard is applicable to the classification of natural grassland degradation, desertification and salinization. GB 19377-2003 Classification indicators of natural grassland degradation, desertification and salinization GB19377-2003 standard download decompression password: www.bzxz.net

ICS 13. C80. 99
National Standard of the People's Republic of China
GB19377—2003
Paramcters for degraralinn, sandiriation and salificalion of rangelands2003-11-10 Issued by
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
2004-04-01 Implementation
All technical contents of this standard are mandatory: This standard is issued by the Ministry of Agriculture of the People's Republic of China. Foreword
GR19377-2003
The units of this standard are: Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Institute of Geographical Sciences and Natural Resources Research, Institute of Geographical Sciences of China, Animal Science College of China Agricultural University: The main drafters of this standard are Su Renxue, Qianghe, Chen Zuosi, Gui Xingjing. 1 Scope
Grading indicators of natural grassland degradation, desertification and salinization This standard defines the levels and indicators of natural grassland degradation, desertification and salinization. This standard is applicable to the classification of natural grassland degradation, desertification and salinization. 2 Normative reference documents
CB19377—2003
The clauses in the listed documents can be cited and become the references of this standard. From the date of reference, the subsequent revisions (excluding the contents of the revisions) or revisions are not applicable to this standard. However, the latest version of the referenced documents without a date shall apply to this standard. 190 Ten infringement classification
3 Terms and definitions
The following terms and definitions apply: This standard, 3. 1
Rangeland degradationrangelanddegradatlonNatural grass drying, wind, water erosion, salt, soil, underground changes and other unfavorable natural factors, or inefficient use of the grass, or mining, mining, destruction of grassland cover, causing grassland degradation, reduced biological production of grass, reduced quality, reduced land use value, loss of use value, the grass in the environment of change, the development of cattle and trees, cattle, the grassland community tends to decline, the proportion of grass and net components is lower, the proportion of grass and net components is lower, the feed intake of livestock is reduced, and the process of reverse tracing is not reversed. 3. 2
Rangeland rungeland Sandy land with sandy surface environment is affected by factors such as climate change, rapid rainfall, early rainfall, improper economic activities, such as long-term over-harvest, improper logging and picking, digging of medicinal materials, etc., which make the land directly damaged by the heat and soil erosion. The organic matter content in the pond decreases, nutrients are lost, and the productivity of the land declines. As a result, the grasslands in the original non-desert areas are now experiencing ten major types of grassland degradation: grassland desertification, grassland degradation, and land degradation caused by wind. 3
Grassland salt rangelandsalificalion grassland in the tidal plains, semi-arid and long-range wetlands, low-lying land and silty coastal grasslands, affected by groundwater or seawater sediments, or affected by human utilization and tourism in modern times, the soil is carried by salt accumulation, the influence of local salt accumulation or excessive land use, the salt content of the soil is increased, the soil is more sensitive to soil salinity, the proportion of salt soil particles is increased, the product quality is reduced, the normal land use conditions should be met, the station (reduced) the single land Reversion process. Note 2, the three cities technical base book (composition) report high-quality low-lying land, grass construction, station desalination, single electricity ...
dominant species
dominant species is the most dominant species in a grassland, that is, the number of individuals in a group, the overall coverage, the dominant species of a single species, which has a great influence on the survival of other species and the overall judgment of the species: the largest species in a group is the dominant species; if there are more than two species in a group, the dominant species in the community are not equal to each other, then the dominant species is called the dominant species, referred to as the dominant species. The species with the most dominant effect is called the subdominant species, the non-dominant species is called the companion species; the plants that are not dominant are called the dominant species.
summated dominance is an indicator for determining the dominant position of a species, and its calculation formula (1): Gp
relative dominance value of the dominant species. Use the relative value of the plant according to the shadow benefit (the absolute test must be based on the risk of each plant falling after the projection cover is the necessary value of the environment! P
The relative value of a certain family of plants, the aboveground blood volume of the species is cut (the absolute value is divided by the ratio of the aboveground blood volume of the various species of the group. The highest absolute range of the ratio SR: the value is greater than the S: the two species are the dominant species. The two species are the common species.
The aboveground grass production plnnimasabuegruund the aboveground cutting technology refers to the yield of the leaves of the plant and the wood car stall when the stall is changed, including the edible grass containing the state of wood and the reduction of the technology when the production of heavy sound is not edible and harmful to the blue sound. 3.8
Soil bulk density suilhulkdensily
Soil under natural conditions. 1. Volume (also included. 1. Particles and pores) The unit is /am or t/m. If the value is too small, the soil texture, fiber content and resistance will be related. Note: Bulk density is necessary for calculating soil carryover. The lower the soil carryover, the more it will be removed, and vice versa. Note 2 Bulk density is used to calculate the soil carryover. It is the main factor affecting the soil's carryover. The soil carries more water, nutrients and storage quality. 3.9
Soil fill modulus suilerosionimdex Under the action of hydraulic, wind, frost, gravity and other forces, the upper city, the upper block and other components will be compressed, destroyed, transported and deposited in the whole process:
Proof: Soil slow erosion is used to determine the soil carryover. The account of the course is zero, and the single piece The volume of soil erosion per unit area is k:, that is, the annual average daily volume of soil erosion, which can be used as a resource for regional erosion control. It is more important to learn how to use water resources and do a good job. 4.1 Grassland degradation indicators 4.1 Grassland degradation The scores and classification weights of individual grassland degradation are shown in Table 1. E. Static characteristics of objects Groups of objects Composition within the station 1 Glass theory Seven points Table 1 Classification and classification indicators of grassland degradation degree Data measurement GB19377—2003 Beneficial soil degradation Material classification Plastic classification: Slightly degraded Total coverage The percentage reduction)
share the actual book of the highly related breeding score () after the good species of pasture tracking arithmetic excellent quality period for the percentage of chicken less 2% of the heavy grass species individual relative percentage reduction rate) the increase rate of the score of the non-toxic and human-controlled items %》the average individual effect of the state for the slight increase in this % Henry land desertification indicator plant species individual number shot when the increase rate of the number of pieces % Beijing animal full process show the relative percentage of the total rat machine percentage reduction rate
sub-degree product production percentage effect of the less car
the addition of the number of non-grass grass production agents
2 layers after the limit
the addition of sand content
the standard amount of oil model for the original rate of the score)
on the area of ​​grass tons of the state logarithm! () The range of the positive logarithm)
0cm-2em1 after the relative reduction of the amount of teaching /) 3--13
3-- 13
11--23
11--2>
11~2:3
11--23
:1---26
:1--26
- [~ 2],
1[--21
Moderate
21 -30
2:~-12
21~3:1
21~-59
21·40
Management, monitor the situation that has reached the standard of harm prevention, and list the "medical blood accounting for the percentage of grass inheritance before the effective rate" as the "must be monitored item in the bidding".
2.2 Desertification
See the table for the first level of desertification classification indicators. Table 2 Grassland desertification (wind erosion) degree classification and classification measures The main products of the upper part of the state are the yield of the grassland and the relative effect of the daily single task. The yield of the grassland is relatively effective. The total yield reduction rate is relatively small. The desertification classification is generally semi-arid or low-lying. The desertification of light desertification plants has become the main species. 24:
H1~-21:
Medium-dense sandification
Exogenous organisms should
dominate
21~1:3
11~4:3
15--10
Blueness
Vegetation is very helpful,
Store less rat sand
5℃:
G193772003
Must leave
Strictly measure the target
North shape characteristics
Table 2 System)
The grass on the yarn surface is relatively public in the middle)
205u Group number
G μm±
layer of soil
city
4.3 Grassland salt droplet
increase)
center. :1 Relative percentage of soil salt content in soil
micro-reduction ratebZxz.net
Relative percentage of soil salt content in soil
enterprise double content reduction rate (; Table 3 Salt classification and classification index matching of land salt grading
0·-10
9·-15
Natural sand
Controllable level sand
Dynamic·Fixed sand dune
J : 20
11-·20
11-~ 2C
11·- 2c
Table 3 Grading and general indicators of grassland salt reduction degree Monitoring items
Garlic law
Soil county buried
Chemical connection
Groundwater
w!fem~
Ten volumes of nutrients
Natural resistance index Yonghang hook
Grassland total coverage rate of benefit to door fraction reduction/) total yield relative to door fraction reduction in total edible grass production aboveground total yield and the reduction rate of effectiveness (
Quick reduction class area of ​​grassland total area relative to door fraction of land Jiadong:)
Soil salt content relative! The average increase in the potential effect of the car production>[1 letter relative to the branch of the growth rate/
diving should elu
expansion of the percentage of failure to examine the work rate/)
accounted for the machine quality of the relatively public education of the less review (total) the full intention to the public less rate (I》
to Beijing Chemical
salt resistance
a small amount of industry college
200-3uc
medium sand The flat sandy land, small wind-blown pits. The solid or 21-25 hundred salt legacy land salt transformation sound plate, and the desertification medium and large sand E: large wind-blown pits, half of the salt resources are pulled out of the blue flow salt point by Xiada Chemical. 22
..u2uu
Set up a public painting speech
Should the salt reduce the situation
Occupy absolutely not the material, can not stand the temptation
Find the material to treat the problem
21 -- 5C
21 --2
21 -- -c
15·-1℃.
+1 -- 5
21·-25
163-1-:
Assessment method
(GB19377—2003
5.153% or more of the critical oxygen monitoring index reaches a certain degradation number (or desertification, degradation) standard value, and the grassland is said to be degraded (or desertified, or salinized). The degradation (or sandification, or degradation) that must be measured must reach the standard within the specified time to be determined as the degradation or desertification, degradation point of the land. Level.
5.27% or more of the above-mentioned grassland degradation (or desertification, or liquefaction) standards are met, and the grassland is considered to be degraded! Or desertification or salt filtration: Total: 5.3 When the above-mentioned degradation, liquefaction and other monitoring items account for % of the total number of the remaining monitoring items, the monitoring indicators of the previous month must be evaluated as 5.3. When the indicators of the items that must be tested do not meet the requirements of the 3rd and 5th month of the standard are slightly degraded or liquefied, the monitoring indicators must be evaluated as 5.3. When more than 4% of the daily indicators of the monitoring items reach the level of mild or above degradation (or mild erosion, or salinization), it is considered as degradation. And the daily monitoring items must show signs of degradation (desertification, or salinization) and are considered as degradation (or diagnostic degradation, or with degradation: level.
When the daily indicators of the monitoring items reach the level of degradation and desertification or erosion of more than 3% and the auxiliary monitoring items reach the level of mild or above degradation ( 5.4 Slightly desertified grassland. Slightly salinized grassland is considered as moderately degraded grassland. 5.5 Moderately degraded grassland is considered as moderately degraded grassland. 6.1 Non-degraded grassland is based on the general description of the land use characteristics and soil condition of the natural conservation demonstration area in the near-thermal conditions of the measuring point and the surface condition of the land.
6.2 When the point is near the island, the car also set up a protected area, the change of grass pond nature reserve has the need to pay the fee is determined by the household single state type, the use of the early hot spring model, the small period of the national unified grass also Zhejiang training survey obtained some of the measured areas related to the city pond type of non-degraded land suitable for the land, etc., and the geographical records, ten away from the asphalt office its increase, point, 3 monitoring points near the pond self-spinning protection, the text less 2 centuries and, the medium-term national cover land first unified survey of the compensation land lake data, pressure officially published from 208) era cut, medium-term national grass electric night "Xie Shi investigation data compiled by the provincial, municipal, administrative area grass pond resources special in the end of the same typical academic land resources science for the release of difficult, GB 193772003
【1|Ministry of Agriculture of the People's Republic of China Commercial Self-medicine Department of the whole park business administration Zeng Medical General Station soil knot, China Zhuo Pond Resources, China Production and Technology Fund 1441 Rational mud disease relative white
micro-reduction rate
relative percentage of the radical reduction
enterprise double content machine opposite tooth change reduction rate (; Art salt use chemical classification and classification index matching table 3 beauty salon
0·-10
9·-15
nature sand
control level energy material sand
dynamic·fixed sand dune
J : 20
11-·20
11-~ 2C
11·- 2c
Table 3 Grading and general indicators of grassland salt reduction degree Monitoring items
Garlic law
Soil county buried
Chemical connection
Groundwater
w!fem~
Ten volumes of nutrients
Natural resistance index Yonghang hook
Grassland total coverage rate of benefit to door fraction reduction/) total yield relative to door fraction reduction in total edible grass production aboveground total yield and the reduction rate of effectiveness (
Quick reduction class area of ​​grassland total area relative to door fraction of land Jiadong:)
Soil salt content relative! The average increase in the potential effect of the car production>[1 letter relative to the branch of the growth rate/
diving should elu
expansion of the percentage of failure to examine the work rate/)
accounted for the machine quality of the relatively public education of the less review (total) the full intention to the public less rate (I》
to Beijing Chemical
salt resistance
a small amount of industry college
200-3uc
medium sand The flat sandy land, small wind-blown pits. The solid or 21-25 hundred salt legacy land salt transformation sound plate, and the desertification medium and large sand E: large wind-blown pits, half of the salt resources are pulled out of the blue flow salt point by Xiada Chemical. 22
..u2uu
Set up a public painting speech
Should the salt reduce the situation
Occupy absolutely not the material, can not stand the temptation
Find the material to treat the problem
21 -- 5C
21 --2
21 -- -c
15·-1℃.
+1 -- 5
21·-25
163-1-:
Assessment method
(GB19377—2003
5.153% or more of the critical oxygen monitoring index reaches a certain degradation number (or desertification, degradation) standard value, and the grassland is said to be degraded (or desertified, or salinized). The degradation (or sandification, or degradation) that must be measured must reach the standard within the specified time to be determined as the degradation or desertification, degradation point of the land. Level.
5.27% or more of the above-mentioned grassland degradation (or desertification, or liquefaction) standards are met, and the grassland is considered to be degraded! Or desertification or salt filtration: Total: 5.3 When the above-mentioned degradation, liquefaction and other monitoring items account for % of the total number of the remaining monitoring items, the monitoring indicators of the previous month must be evaluated as 5.3. When the indicators of the items that must be tested do not meet the requirements of the 3rd and 5th month of the standard are slightly degraded or liquefied, the monitoring indicators must be evaluated as 5.3. When more than 4% of the daily indicators of the monitoring items reach the level of mild or above degradation (or mild erosion, or salinization), it is considered as degradation. And the daily monitoring items must show signs of degradation (desertification, or salinization) and are considered as degradation (or diagnostic degradation, or with degradation: level.
When the daily indicators of the monitoring items reach the level of degradation and desertification or erosion of more than 3% and the auxiliary monitoring items reach the level of mild or above degradation ( 5.4 Slightly desertified grassland. Slightly salinized grassland is considered as moderately degraded grassland. 5.5 Moderately degraded grassland is considered as moderately degraded grassland. 6.1 Non-degraded grassland is based on the general description of the land use characteristics and soil condition of the natural conservation demonstration area in the near-thermal conditions of the measuring point and the surface condition of the land.
6.2 When the point is near the island, the car also set up a protected area, the change of grass pond nature reserve has the need to pay the fee is determined by the household single state type, the use of the early hot spring model, the small period of the national unified grass also Zhejiang training survey obtained some of the measured areas related to the city pond type of non-degraded land suitable for the land, etc., and the geographical records, ten away from the asphalt office its increase, point, 3 monitoring points near the pond self-spinning protection, the text less 2 centuries and, the medium-term national cover land first unified survey of the compensation land lake data, pressure officially published from 208) era cut, medium-term national grass electric night "Xie Shi investigation data compiled by the provincial, municipal, administrative area grass pond resources special in the end of the same typical academic land resources science for the release of difficult, GB 193772003
【1|Ministry of Agriculture of the People's Republic of China Commercial Self-medicine Department of the whole park business administration Zeng Medical General Station soil knot, China Zhuo Pond Resources, China Production and Technology Fund 1441 Rational mud disease relative white
micro-reduction rate
relative percentage of the radical reduction
enterprise double content machine opposite tooth change reduction rate (; Art salt use chemical classification and classification index matching table 3 beauty salon
0·-10
9·-15
nature sand
control level energy material sand
dynamic·fixed sand dune
J : 20
11-·20
11-~ 2C
11·- 2c
Table 3 Grading and general indicators of grassland salt reduction degree Monitoring items
Garlic law
Soil county buried
Chemical connection
Groundwater
w!fem~
Ten volumes of nutrients
Natural resistance index Yonghang hook
Grassland total coverage rate of benefit to door fraction reduction/) total yield relative to door fraction reduction in total edible grass production aboveground total yield and the reduction rate of effectiveness (
Quick reduction class area of ​​grassland total area relative to door fraction of land Jiadong:)
Soil salt content relative! The average increase in the potential effect of the car production>[1 letter relative to the branch of the growth rate/
diving should elu
expansion of the percentage of failure to examine the work rate/)
accounted for the machine quality of the relatively public education of the less review (total) the full intention to the public less rate (I》
to Beijing Chemical
salt resistance
a small amount of industry college
200-3uc
medium sand The flat sandy land, small wind-blown pits. The solid or 21-25 hundred salt legacy land salt transformation sound plate, and the desertification medium and large sand E: large wind-blown pits, half of the salt resources are pulled out of the blue flow salt point by Xiada Chemical. 22
..u2uu
Set up a public painting speech
Should the salt reduce the situation
Occupy absolutely not the material, can not stand the temptation
Find the material to treat the problem
21 -- 5C
21 --2
21 -- -c
15·-1℃.
+1 -- 5
21·-25
163-1-:
Assessment method
(GB19377—2003
5.153% or more of the critical oxygen monitoring index reaches a certain degradation number (or desertification, degradation) standard value, and the grassland is said to be degraded (or desertified, or salinized). The degradation (or sandification, or degradation) that must be measured must reach the standard within the specified time to be determined as the degradation or desertification, degradation point of the land. Level.
5.27% or more of the above-mentioned grassland degradation (or desertification, or liquefaction) standards are met, and the grassland is considered to be degraded! Or desertification or salt filtration: Total: 5.3 When the above-mentioned degradation, liquefaction and other monitoring items account for % of the total number of the remaining monitoring items, the monitoring indicators of the previous month must be evaluated as 5.3. When the indicators of the items that must be tested do not meet the requirements of the 3rd and 5th month of the standard are slightly degraded or liquefied, the monitoring indicators must be evaluated as 5.3. When more than 4% of the daily indicators of the monitoring items reach the level of mild or above degradation (or mild erosion, or salinization), it is considered as degradation. And the daily monitoring items must show signs of degradation (desertification, or salinization) and are considered as degradation (or diagnostic degradation, or with degradation: level.
When the daily indicators of the monitoring items reach the level of degradation and desertification or erosion of more than 3% and the auxiliary monitoring items reach the level of mild or above degradation ( 5.4 Slightly desertified grassland. Slightly salinized grassland is considered as moderately degraded grassland. 5.5 Moderately degraded grassland is considered as moderately degraded grassland. 6.1 Non-degraded grassland is based on the general description of the land use characteristics and soil condition of the natural conservation demonstration area in the near-thermal conditions of the measuring point and the surface condition of the land.
6.2 When the point is near the island, the car also set up a protected area, the change of grass pond nature reserve has the need to pay the fee is determined by the household single state type, the use of the early hot spring model, the small period of the national unified grass also Zhejiang training survey obtained some of the measured areas related to the city pond type of non-degraded land suitable for the land, etc., and the geographical records, ten away from the asphalt office its increase, point, 3 monitoring points near the pond self-spinning protection, the text less 2 centuries and, the medium-term national cover land first unified survey of the compensation land lake data, pressure officially published from 208) era cut, medium-term national grass electric night "Xie Shi investigation data compiled by the provincial, municipal, administrative area grass pond resources special in the end of the same typical academic land resources science for the release of difficult, GB 193772003
【1|Ministry of Agriculture of the People's Republic of China Commercial Self-medicine Department of the whole park business administration Zeng Medical General Station soil knot, China Zhuo Pond Resources, China Production and Technology Fund 1441. The general description is based on the measurement points of non-degraded land, the long-term thermal insulation conditions and the land utilization demonstration area, and the soil condition.
6.2 When the point is near the island, the car also set up a protected area, the change of grass pond nature reserve has the need to pay the fee is determined by the household single state type, the use of the early hot spring model, the small period of the national unified grass also Zhejiang training survey obtained some of the measured areas related to the city pond type of non-degraded land suitable for the land, etc., and the geographical records, ten away from the asphalt office its increase, point, 3 monitoring points near the pond self-spinning protection, the text less 2 centuries and, the medium-term national cover land first unified survey of the compensation land lake data, pressure officially published from 208) era cut, medium-term national grass electric night "Xie Shi investigation data compiled by the provincial, municipal, administrative area grass pond resources special in the end of the same typical academic land resources science for the release of difficult, GB 193772003
【1|Ministry of Agriculture of the People's Republic of China Commercial Self-medicine Department of the whole park business administration Zeng Medical General Station soil knot, China Zhuo Pond Resources, China Production and Technology Fund 1441. The general description is based on the measurement points of non-degraded land, the long-term thermal insulation conditions and the land utilization demonstration area, and the soil condition.
6.2 When the point is near the island, the car also set up a protected area, the change of grass pond nature reserve has the need to pay the fee is determined by the household single state type, the use of the early hot spring model, the small period of the national unified grass also Zhejiang training survey obtained some of the measured areas related to the city pond type of non-degraded land suitable for the land, etc., and the geographical records, ten away from the asphalt office its increase, point, 3 monitoring points near the pond self-spinning protection, the text less 2 centuries and, the medium-term national cover land first unified survey of the compensation land lake data, pressure officially published from 208) era cut, medium-term national grass electric night "Xie Shi investigation data compiled by the provincial, municipal, administrative area grass pond resources special in the end of the same typical academic land resources science for the release of difficult, GB 193772003
【1|Ministry of Agriculture of the People's Republic of China Commercial Self-medicine Department of the whole park business administration Zeng Medical General Station soil knot, China Zhuo Pond Resources, China Production and Technology Fund 144
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