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LY/T 3320-2022: Evaluating criterion for balance of forage supply and livestock requirement
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Evaluating criterion for balance of forage supply and livestock requirement
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LY/T 3320-2022
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Basic data | Standard ID | LY/T 3320-2022 (LY/T3320-2022) | | Description (Translated English) | Evaluating criterion for balance of forage supply and livestock requirement | | Sector / Industry | Forestry Industry Standard (Recommended) | | Classification of Chinese Standard | B40 | | Classification of International Standard | 65.020.40 | | Word Count Estimation | 10,158 | | Date of Issue | 2022-11-30 | | Date of Implementation | 2023-04-01 | | Issuing agency(ies) | State Forestry and Grassland Administration | LY/T 3320-2022: Evaluating criterion for balance of forage supply and livestock requirement---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS65:020:40
CCSB40
Forestry Industry Standard of the People's Republic of China
Technical specification for grass-livestock balance evaluation
Posted on 2022-11-30
2023-04-01 Implementation
Released by the State Forestry and Grassland Administration
table of contents
Preface I
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Evaluation Index 2
5 Determination of evaluation indicators 2
6 Verification method 4
Appendix A (informative) Baseline values of vegetation indicators for grass-livestock balance in different grassland types during the growing season 6
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents"
drafting:
This document is under the jurisdiction of the National Forestry and Grassland Administration Standardization Technical Committee (NFGA/TC2):
This document was drafted by: China Agricultural University, Inner Mongolia Academy of Agriculture and Animal Husbandry Sciences, Inner Mongolia Agricultural University, Chinese Academy of Agricultural Sciences,
Beijing Animal Husbandry and Veterinary Research Institute, Qinghai University, Xinjiang Agricultural University:
The main drafters of this document: Zhang Yingjun, Yin Guomei, Liu Nan, Wang Chengjie, Huang Ding, Li Xianglin, Dong Quanmin, Sun Zongjiu:
Technical specification for grass-livestock balance evaluation
1 Scope
This document specifies the technical index requirements for evaluating the balance between grassland and livestock after the use of grazing grassland:
This document is applicable to the evaluation of grassland use mainly for grazing and the effect evaluation of the implementation of grass-livestock balance:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document:
NY/T 1233-2006 Technical Regulations for Grassland Resources and Ecological Monitoring
3 Terms and Definitions
The following terms and definitions apply to this document:
3:1
grassland
The vegetation is dominated by herbaceous or herbaceous and semi-shrub plants and is suitable for livestock grazing, including northern pastures, grasslands and grasslands for grazing:
Grassy hills and slopes in the south:
3:2
improved grassland improvedgrassland
Using fertilization, supplementary seeding and other improvement measures, the dry matter ratio of high-quality forage grass is not less than 70% of high-yield grassland:
3:3
The amount of green living organic dry matter in the shoots of grassland plants at a certain moment:
3:4
residual biomass
Amount of green living organic dry matter present on grasslands after grazing:
3:5
It contains certain harmful chemical substances that are detrimental to the health of livestock, which can cause physiological abnormalities, health damage or even death of livestock after being eaten by livestock
plant: Or it does not contain toxic substances, but some of its organs can cause damage to livestock at specific growth and development stages, and even cause the death of livestock
Plants that are dead or of reduced quality as livestock products:
3:6
edible pasture
Species of plants other than inedible or poisonous grasses that can be eaten by domestic animals:
3:7
Ratio of Edible Forage
The ratio of the amount of pasture that livestock can eat to the aboveground grass production of the grassland:
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