LY/T 2030-2012 English PDF
Basic dataStandard ID: LY/T 2030-2012 (LY/T2030-2012)Description (Translated English): Technical regulation of rapid measurement of leaf area index in natural deciduous forests based on leaf litter collection Sector / Industry: Forestry Industry Standard (Recommended) Classification of Chinese Standard: B60 Classification of International Standard: 65.020 Word Count Estimation: 7,762 Regulation (derived from): State Forestry Administration Notice 2012 No. 5; industry standard filing Notice 2012 No. 4 (No. 148 overall) Issuing agency(ies): State Forestry Administration Summary: This standard specifies the rapid determination of deciduous forests leaf area index (LAI) of the Act defines collect leaves, field sampling, laboratory analysis methods and LAI estimation methods. This standard applies to deciduous forests leaf area inde LY/T 2030-2012: Technical regulation of rapid measurement of leaf area index in natural deciduous forests based on leaf litter collection---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. Technical regulation of rapid measurement of leaf area index in natural deciduous forests based on leaf litter collection ICS 65.020 B60 People's Republic of China Forestry Industry Standard Rapid determination of leafy natural forest leaf area by deciduous collection method Technical specification of the index Published on.2012-02-23 2012-07-01 implementation State Forestry Administration released ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the Chinese Academy of Forestry. This standard is under the jurisdiction of the State Forestry Administration. This standard was drafted. Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Wetland Research, Chinese Academy of Forestry Research institute. The main drafters of this standard. Guo Zhihua, Liu Shirong, Li Chunyan, Xiang Hongbo, Guo Julan, Cai Qianqian. Rapid determination of leafy natural forest leaf area by deciduous collection method Technical specification of the index1 ScopeThis standard specifies the definition of leaf collection method for rapid determination of leaf natural area leaf area index (LAI), field sampling method, and indoor analysis. Method and LAI estimation method. This standard applies to the leaf area index (LAI) determination of deciduous natural forests.2 Terms and definitionsThe following terms and definitions apply to this document. 2.1 Deciduous natural forest naturaldeciduousforests A type of forest consisting of deciduous trees of natural origin. 2.2 Deciduous collection method Estimating forest foliage by measuring leaf biomass and leafleaf (SLA) of deciduous forests The method of index (leafareaindex, LAI). 2.3 Specific leaf area specificleafarea (SLA) The ratio of the total area of the leaf to the dry weight of the sample (m2/g). 2.4 Deciduous biomass leafbiomass The dry matter quality of the fallen leaves collected per unit area.3 sample setting3.1 Select two representative forest plots with flat terrain and small slope, and set up two plots of 30m×30m. 3.2 In each plot of 30m×30m, choose no undulations on the ground, and there are no large low-lying parts. Set 2 randomly. Sample of 5m × 5m. 3.3 Before the start of the leaves, six 1m×1m collection baskets are randomly placed on each 5m×5m sample, and shrub cover should be avoided. 3.4 If it is necessary to improve the measurement accuracy, 11 1m×1m collection baskets are randomly set in each 5m×5m sample, and shrubs should be avoided. cover.4 fallen leaves collection4.1 After the leaves are over, collect all the leaves in each collection basket and weigh them (the accuracy is 0.1g), which is recorded as M. 4.2 After measuring the fresh weight of all the leaves in each collection basket, take 3 pieces of mixed leaves, each about 100g, respectively, into plastic ziplock bag, dense Closed, brought back to the laboratory, weighed the sample leaves (accuracy of 0.01g), recorded as M1, used to determine the moisture content of leaves. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of LY/T 2030-2012_English be delivered?Answer: Upon your order, we will start to translate LY/T 2030-2012_English as soon as possible, and keep you informed of the progress. 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