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LY/T 3185-2020: Technical regulation for reintroduction of wild plants with extremely small populations
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Technical regulation for reintroduction of wild plants with extremely small populations
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LY/T 3185-2020
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Basic data | Standard ID | LY/T 3185-2020 (LY/T3185-2020) | | Description (Translated English) | Technical regulation for reintroduction of wild plants with extremely small populations | | Sector / Industry | Forestry Industry Standard (Recommended) | | Classification of Chinese Standard | B65 | | Classification of International Standard | 65.020.01 | | Word Count Estimation | 17,152 | | Date of Issue | 2020-03-30 | | Date of Implementation | 2020-10-01 | | Regulation (derived from) | Announcement No. 6 of 2020 by the State Forestry and Grassland Bureau | | Issuing agency(ies) | State Forestry and Grassland Administration | LY/T 3185-2020: Technical regulation for reintroduction of wild plants with extremely small populations
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Technical regulation for reintroduction of wild plants with extremely small populations
ICS 65.020.01
B65
LY
People's Republic of China Forestry Industry Standard
Technical specifications for the field return of very small populations of wild plants
2020-03-30 released
2020-10-01 implementation
Issued by the State Forestry and Grassland Administration
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed and managed by the State Forestry and Grassland Administration.
The organizations responsible for drafting this standard. Beijing Forestry University, Institute of Forest Ecology and Forest Protection, Chinese Academy of Forestry, Chinese Science
Institute of South China Botanical Garden, Sichuan Academy of Forestry, Yantai Municipal Group.
The main drafters of this standard. Li Junqing, Liu Yanhong, Zhang Yuyang, Zang Runguo, Zeng Runguo, Zeng Songjun, Yutao, Ma Wenbao, Tan Chengquan, and Li Mingguo
Table of contents
Foreword...I
1 Scope...1
2 Normative references...1
3 Terms and definitions...1
4 Principles and goals of field return...2
5 Background investigation...2
6 Where and how to return to the wild...3
7 Preparation of Field Return Materials...3
8 Return to the wild and colonization...4
9 Field Return Management...5
Appendix A Field Resource Survey Form for Returned Species...7
Appendix B Seed Collection Information Record Form...8
Appendix C Questionnaire on the conditions of the land to be returned...9
Appendix D Evaluation Table for Survival Rate of Returning Plants...10
Appendix E Plant Growth Monitoring Record Sheet after the Return...11
Appendix F Phenological Observation Record Form of Regression Species...12
Appendix G Manual Tending Record Form for Returned Land...13
Technical specifications for the field return of very small populations of wild plants
1 Scope
This regulation stipulates the background investigation of very small populations of wild plants, the location and method of field return, and the method of field return materials.
Preparation, field return and field return management, etc.
This regulation applies to the return of all wild plants of very small populations in my country.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version
Applies to this document. For undated references, the latest version (including all amendments) applies to this document.
GB/T 6001 Technical Regulations for Nursery
LY/T 2589 Guide to Return of Rare and Endangered Plants
LY/T 2938 Principles and methods for the protection of very small populations of wild plants
LY/T 2590 Technical Regulations for Seed Collection of Rare and Endangered Wild Plants
GB/T 15576 Technical Regulations for Afforestation
3 Terms and definitions
"Terms and Definitions" in the "GB/T 6001, LY/T 2589, LY/T 2938, LY/T 2590 and GB/T 15576" boundary
The following terms and definitions apply to this standard.
3.1 Reintroduction
For the purpose of biodiversity conservation, re-introduction of the species’ reproductive materials into the in situ
The long-lived self-sustaining population can eventually participate in the ecological process of the wild biological community and become the local biological community
Part of the state system.
3.2 Reintroduction source
Contribute to the provenance of return materials for the field return. Including contribution of seeds, seedlings and other propagules or organs for return
Provenance of other materials.
3.3 wild destination area for reintroduction
Return to the field or place where the material will finally be colonized.
3.4 Enhanced regression reinforcement
Increase the number of provenance populations used for return and the number of introduced individuals among different populations in the existing distribution areas of returning species,
Thereby increasing the genetic diversity of returning populations in the wild, improving the viability of returning populations, and achieving protection of very small populations of wild plants
purpose.
3.5 Re-establishment
The distribution of this species has existed in history, but the populations that have disappeared in reality, through direct seeding or transplantation of new species propagated in the nursery
Introduce organisms that have returned to the wild to rebuild the disappeared populations.
3.6 conservation reintroduction
From the perspective of biodiversity conservation, in suitable areas outside the existing and historical
According to the global climate change law, the species is introduced, and a new population of returning species that can be self-sustained and renewed in the wild is created.
4 Principles and objects of field regression
4.1 The principle of field regression
(1) Do not damage or disturb the native population and its habitat;
(2) When conditions are met, choose different return locations in the wild to establish multiple wild populations, and the genetic background of different populations is clear.
Indeed
(3) Local provenance should be adopted for each return site in the wild. If the local provenance has completely disappeared, the adjacent provenance shall be adopted;
(4) Try to create conditions to carry out various types of field returns;
(5) Give full play to the role of artificial tending in return to the wild.
4.2 Field return objects
Return objects are all plants in the list of very small population wild plants. For details, please refer to the "National Very Small Species
Schedule 1 List of Protected Plants in Very Small Populations of the Implementation Plan for Rescue and Protection of Wild Plants.
5 Background investigation
5.1 Background survey of returned species in the wild
Comprehensively collect field data of regressed species, and carry out background surveys of regressed species’ wild resources, including habitat and community characteristics
For other indicators, refer to LY/T 2938 for the background survey area. Refer to Appendix A for the specific content of the background questionnaire.
5.2 Survey of requirements for field return
Collect all aspects of information related to survival in the wild, including seed dispersal mechanism, seed germination conditions and habitat
Conditions, natural renewal capacity, symbiosis, pests and diseases, etc.
5.3 Selection of regression type
According to the biological characteristics and distribution patterns of wild plants of different very small populations, wild plants of very small populations return to the field.
For enhanced regression, reconstruction regression and conservation regression.
5.3.1 Conditions for selecting enhanced regression
(1) There are factors of population reduction in the natural distribution area of the returning species (the number of populations is too small, the ratio of male to female
Imbalance, unreasonable age structure) controllable population;
(2) The current distribution area of the population has the conditions to carry out the return. After the implementation of the return project, the population will no longer face continuous
The threat of continued decline.
5.3.2 Implementation conditions of reconstruction regression
(1) The main factors leading to population extinction in the existing distribution area are uncontrollable, and suitable habitats exist in the historical distribution area;
(2) The site has the basic conditions for carrying out the return, and after the return project is implemented, the species no longer faces population numbers
The threat of continuing to decline.
5.3.3 Implementation conditions for conservation regression
(1) There is a field return site that meets or is more suitable for its growth and development outside its current and historical distribution range, and at the same time
The site also has the conditions to control the factors that lead to population reduction and provide effective management solutions;
(2) Outside the existing and historical distribution area of the returning species, a new one can be self-sustained and renewed, and at the same time
A population with a certain ecological function in the homecoming community.
5.4 Protection of return to the wild
(1) Ecosystem. maintain the naturalness, stability, health and integrity of the ecosystem in the place of return;
(2) Restricted use. restrict the development and use of very small populations of wild plants, and curb plunder for economic benefits
Type development, illegal logging, illegal excavation and illegal mining activities are strictly prohibited;
(3) Genetic diversity. Strictly control the introduction of other species in the returned ecosystem to avoid causing wild
Genetic contamination of plants;
(4) Scientific management. starting from the basic fact that the population is very small in the return place, conduct scientific and effective management;
(5) Propaganda and education. Strengthen the education of local residents in the places of return, and strengthen the propaganda of wild
The importance of plants.
6 Where and how to return to the wild
6.1 Survey content of field return
The survey content of the field return site includes. geological and hydrological conditions, soil type, altitude, climatic factors, slope direction, slope position,
Vegetation community types, related and key species of animals and plants, etc., among which pollination and seed dispersal that may be
Sowing, seed germination and seedling growth and other related information. Please refer to Appendix C for the survey form of field return locations.
6.2 Principles of Screening for Returned Places
(1) Meet the basic conditions necessary for the survival of the returning species, including climate, soil, ecology, biology, etc.
In all aspects, the focus will be on areas with very small populations of wild plants that have returned to the target;
(2) Eliminate the main factors that lead to the endangerment of the returning species, or the main factors that lead to the decrease of the population can be controlled.
Refer to 5.3 for the screening conditions of field return.
7 Preparation of materials for field return
7.1 Sources of Return Materials in the Field
Any individual or organ of a very small population of wild plants that can survive independently in nature can be used as a return material in the wild, such as species
Seedlings, seedlings, cutting seedlings and tissue culture seedlings, etc., seedlings are the first choice. Field return materials cannot be obtained through field transplantation.
The genetic diversity of the return material in the wild contains all the genetic information of the species as much as possible.
The return material is required to meet the following requirements.
(1) Field plants ≥ 50 plants. the amount of seeds per plant is large, and the seedlings are mainly collected and propagated;
(2) Field plants ≥ 50 plants. less seeds, woody plants are mainly cutting and grafting; herb plants height ≥ 1m,
Mainly grafting and tissue culture; herbaceous plant height < 1m, mainly grafting and tissue culture;
(3) Field plants < 50 plants. The amount of seeds per plant is large, and the seedlings are mainly collected and propagated.
(4) Field plants < 50 plants. The amount of seeds per plant is small, and both woody and herbaceous plants are cut, grafted and organized
Comprehensive collection of propagation materials such as culture.
7.2 Seed collection
(1) In the process of seed collection, the provenance must be clearly and can be checked, and the mother tree must be listed and marked;
(2) Avoid harm to the renewal in the wild due to seed collection, and obtain the returned materials in the wild to the greatest extent;
(3) Develop implementation plans before seed collection, organize training of seed harvesters, and regularly check seed maturity. Seed
Refer to LY/T 2590 for collection volume, and Table B for seed collection information.
7.3 Cutting materials
The selection of cutting materials is based on different plant characteristics, and cuttings can be selected according to different parts of the plant.
The bit must contain all genetic information of the returning species. Cuttings of woody plants are carried out from February to August and July to August.
7.4 Tissue culture materials
The tissue culture materials of wild plants of different very small populations may be different due to individual differences. Generally, plant classics can be selected.
Plant materials such as buds, stems, or leaves on healthy plants with type traits.
7.5 Nursery
(1) Very small populations of wild plants have certain particularities in terms of living conditions and seed germination. Specific seedling raising
The method should be based on the reproduction method of the returned species in the wild;
(2) The principle of returning to the field nearby is the principle;
(3) Seed breeding can be used for seedling breeding, cutting seedlings and group breeding, etc.;
(4) Try to use container seedlings;
(5) For general technology, refer to GB/T 6001 for nursery technology. Seedling source and reproduction and breeding file table reference
Appendix D of LY/T 2589.
7.6 Number of returns in the wild
The number of materials returned in the wild should not be less than the number of individuals required by the minimum living population of each species.
The minimum requirements are different. Trees. Seedlings ≥50, cutting seedlings, grafted seedlings and tissue cultured seedlings ≥100; shrubs and vines.
Seedlings ≥ 100, cutting seedlings, grafted seedlings and tissue cultured seedlings ≥.200; Herbs. Seedlings ≥ 150, cutting seedlings, grafted
Seedlings and tissue cultured seedlings ≥ 300 plants.
8 Return to the wild
8.1 Site preparation
Properly sort out the return grounds in the wild, keep some of the companion species, and ensure that their companion species will not affect the return to the wild
Species grow normally. If necessary, local soil can be improved, considering water supply and drainage and culture quality. Site preparation principles and technical reference
GB/T 15576.
8.2 Planting of returned materials in the wild
(1) Planting at a suitable time should be selected according to different species, and the special characteristics of very small populations of wild plants should be considered.
Sex, including habitat characteristics, biological communities, site conditions, biological characteristics, etc.;
(2) When planting, the pollinators and distances of returning species in the wild, and the way of seed transmission should be considered, and their in the wild should be simulated.
Colonize it outside the natural growth state to avoid colonization in rows and rows;
(3) Use GPS to locate, draw a colonization distribution map according to the actual colonization situation, and mark its topographic features as detailed as possible.
8.3 Post management
(1) Watering, shading, fertilizing, weeding, pest control, animal pest control and natural disaster control, refer to GB/T 15776;
(2) Seedling replanting shall be replanted according to Appendix D after return.
9 Field return management and effectiveness evaluation
9.1 Returning population monitoring
9.1.1 Monitoring objects
It can be determined based on the size of the regression scale to monitor the individual plant or plot as a unit. For each monitoring unit
Establish a separate file and hang an independent sign for long-term monitoring.
9.1.2 Monitoring content
(1) It can be formulated according to the characteristics of the returning species, such as breast (ground) diameter, plant height, ontogeny indicators, etc.;
(2) Record the annual growth of individual plants or sample plots, and conduct phenological observation records and related animal and plant conditions
(Such as pollinators, seed dispersers), and soil physical and chemical or ecological characteristics, etc.;
(3) Please refer to Appendix E for the record sheet of plant growth monitoring after field return, and refer to the record sheet of phenological observation of field return species
Appendix F;
(4) Artificial tending is carried out regularly, and the content and frequency of artificial tending should also be recorded.
Refer to Appendix G for the care record sheet.
9.1.3 Monitoring frequency
(1) Determine the monitoring frequency according to the life form and life history of different wild returning species. Generally, woody plants initially
Monitor at least once a year for 10 years; herbaceous plants adopt different monitoring frequency according to perennial or 1-year old.
(2) It can be formulated according to the life form of the returning species and the project period. Generally speaking, at least 1
Second, the monitoring frequency can be maintained or appropriately reduced later as needed.
9.2 Construction of Species and Habitat Information Database and File Management
Establish the growth, habitat and protection status of wild plants in ex-situ very small populations through document collection and investigation, monitoring and collation
And other related information database.
9.3 Establishment and management of regression files
A complete file recording system should be established. The tables and reference tables in this specification are regression files, and the regression files should be unified
1.Management. The establishment and management of the return file is completed by the cooperation of the specific implementation unit and technical support unit of the return project.
9.4 Return management period
(1) The management period after the return should be out of sight of the individual developmental characteristics of the returning species such as the life form and life cycle, and
After the return, the management level and return target are comprehensively considered and determined;
(2) The monitoring period by the scientific research personnel shall be extended at least until the returning population reaches the normal breeding age, after which the local
Long-term monitoring by the forestry department;
(3) For large and medium-sized trees, the later management time should not be less than 10 years. For small trees, shrubs, vines
It would take 3 years to 10 years, and 1 to 3 years for herbs or cushion plants.
9.5 Evaluation of regression effectiveness
9.5.1 Short-term standards
Refer to Appendix D for short-term standard evaluation.
9.5.2 Long-term standards
Produce fertile seeds and realize the process of "from seed to seed". That is, the plant is required to grow normally, be able to bloom and bear fruit, and
Produce sustainable reproduction offspring through asexual or sexual reproduction.
Appendix A
(Informative appendix)
Field Resource Survey Form for Returning Species
Appendix B
(Normative appendix)
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