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LY/T 1687-2007: Indicators system for long-term obserbation of forest ecosystem in tropical zone
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Indicators system for long-term obserbation of forest ecosystem in tropical zone
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LY/T 1687-2007
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Basic data | Standard ID | LY/T 1687-2007 (LY/T1687-2007) | | Description (Translated English) | Indicators system for long-term obserbation of forest ecosystem in tropical zone | | Sector / Industry | Forestry Industry Standard (Recommended) | | Classification of Chinese Standard | B65 | | Classification of International Standard | 65.020 | | Word Count Estimation | 12,189 | | Date of Issue | 2007-06-04 | | Date of Implementation | 2007-10-01 | | Quoted Standard | LY/T 1606-2003 | | Regulation (derived from) | Chinese industry standard filing Notice 2007 No. 9 (No. 93 overall) | | Issuing agency(ies) | State Forestry Administration | | Summary | This standard specifies the tropical forest ecosystem observations, namely meteorological conventional indicators, forest microclimate and gradient index, the forest atmospheric deposition targets, forest soil physical and chemical indicators of forest ecosystem health indicators, forest hydrology indicators and forest community characteristics index. This standard applies to our range of tropical forest ecosystem observation (not including coastal mudflats and tidal estuary on the distribution of mangroves). | LY/T 1687-2007: Indicators system for long-term obserbation of forest ecosystem in tropical zone---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.
Indicators system for long-term obserbation of forest ecosystem in tropical zone
ICS 65.020
B65
People's Republic of China Forestry Industry Standard
Tropical forest ecosystem positioning
Observation index system
Released on.2007-06-04
2007-10-01 implementation
State Forestry Administration released
Foreword
This standard is proposed and managed by the State Forestry Administration.
This standard is drafted by. Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Chinese Academy of Forestry
Forestry Research Institute.
The main drafters of this standard. Wang Bing, Li Yide, Li Shaoning, Zheng Qiuhong, Cui Xianghui, Luo Tushou, Chen Dexiang.
This standard was first published.
Tropical forest ecosystem positioning
Observation index system
1 Scope
This standard specifies the observation indicators for tropical forest ecosystems, namely meteorological routine indicators, forest microclimate and gradient indicators, and large forests.
Gas deposition indicators, physical and chemical indicators of forest soils, forest ecosystem health indicators, forest hydrological indicators and forest community characteristics indicators.
This standard is applicable to the positioning of tropical forest ecosystems in China (excluding red distributed along beaches and estuaries).
forest).
2 Normative references
The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all
Modifications (not including errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study
Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard.
LY/T 1606-2003 Forest Ecosystem Positioning Observation Index System
3 Terms and definitions
The terms and definitions established by LY/T 1606-2003 and the following terms apply to this standard.
3.1
In the tropics, biomes (including animals, plants, microorganisms, etc.) with arbor species as the main body have continuous progress with time and space.
A functional unit of life and regenerative capacity for energy exchange, material circulation, and energy transfer.
3.2
A strong storm that occurs on tropical oceans, which divides tropical cyclones into four categories based on the highest winds near the center of the storm. tropical depression
(tropicaldepression)---Wind level below 8, maximum wind speed < 17.2m·s-1; tropical storm---wind
8 to 9 grades, the maximum wind speed is 17.2m·s-1 to 24.4m·s-1; severe tropical storm (severetropicalstorm)---wind 10
Level 11, maximum wind speed 24.5m·s-1～32.6m·s-1; typhoon (typhoon)---wind level 12 or above, maximum wind speed
>32.6m·s-1. Tropical cyclones usually cause violent storms, which are an extreme occurrence in summer and autumn in tropical and subtropical regions of China.
Severe severe weather.
3.3
The amount of water lost when the soil is dried at 105 ° C to constant weight, the mass of water in the unit soil mass (mass fraction) or unit soil capacity
The volume (volume fraction) of water in the product is expressed.
3.4
Direct radiation from the sun's surface and a very narrow circular sky radiation around the sun (annual radiation). It is indicated by the symbol S.
3.5
The portion of short-wave radiation that is reflected upward by the underlying surface (active layer) after the total radiation reaches the ground. It is represented by the symbol Er↑.
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