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LY/T 2091-2013: Indicator system for long-term observation of desert ecosystem in extreme and zone
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Indicator system for long-term observation of desert ecosystem in extreme and zone
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LY/T 2091-2013
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Basic data | Standard ID | LY/T 2091-2013 (LY/T2091-2013) | | Description (Translated English) | Indicator system for long-term observation of desert ecosystem in extreme and zone | | Sector / Industry | Forestry Industry Standard (Recommended) | | Classification of Chinese Standard | B65 | | Classification of International Standard | 65.020 | | Word Count Estimation | 11,190 | | Quoted Standard | GB/T 20479-2006; GB/T 20480-2006; LY/T 1698-2007; LY/T 1752-2008; LY/T 1753-2008; QX/T 48-2007 | | Regulation (derived from) | State Forestry Bulletin 2013 No. 8; industry standard filing Notice No. 5 of 2013 (No. 161 overall) | | Issuing agency(ies) | State Forestry Administration | | Summary | This standard specifies: extreme arid zones Desert Ecosystem observations, namely meteorological indicators of atmospheric environmental indicators, indicators of soil, sand dunes indicators, hydrological indicators and biological indicators. This standar | LY/T 2091-2013: Indicator system for long-term observation of desert ecosystem in extreme and zone
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Indicator system for long-term observation of desert ecosystem in extreme and zone
ICS 65.020
B65
People's Republic of China Forestry Industry Standard
Extreme arid zone desert ecosystem
Positioning observation index system
Published on.2013-03-15
2013-07-01 implementation
State Forestry Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the State Forestry Administration.
This standard is under the jurisdiction of the National Sand Control and Sand Control Standardization Technical Committee (SAC/TC365).
This standard is drafted by. Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Desert of Chinese Academy of Forestry
Institute of Chemistry.
The main drafters of this standard. Lu Qi, Cui Xianghui, Yan Jianmin, Yang Wenbin, Wu Bo, Wang Xuequan, Yang Xiaohui.
Extreme arid zone desert ecosystem
Positioning observation index system
1 Scope
This standard specifies the positioning indicators for desert ecosystems in extreme arid regions, namely meteorological indicators, atmospheric environmental indicators, soil indicators, sand dunes.
Indicators, hydrological indicators and biological indicators.
This standard is applicable to the observation of desert ecosystems in extreme arid regions in China.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 20479-2006 sandstorm weather monitoring specification
GB/T 20480-2006 sandstorm weather rating
LY/T 1698-2007 Desert Ecosystem Positioning Observation Index System
LY/T 1752-2008 Desert Ecosystem Positioning Observation Technical Specification
LY/T 1753-2008 Desert Ecosystem Observation and Research Station Construction Specification
QX/T 48-2007 Surface meteorological observation specification Part 4. Observation of weather phenomena
3 Terms and definitions
The terms and definitions defined by LY/T 1698-2007, LY/T 1753-2008 and LY/T 1752-2008 and the following terms apply to this
file.
3.1
Dryness aridityindex
Also known as the dryness index or the drying factor, it is an index describing the degree of dryness of the climate, and the coefficient of wetting is reciprocal to each other.
The ratio of consumption to income represents the ratio of annual evaporation to annual precipitation.
3.2
Surface reflectance
The ratio of the amount of reflected radiation on the ground to the amount of incident radiation, characterizing the ability of the ground to absorb and reflect solar radiation.
3.3
Dust flux dustflux
Dust flow through a unit area perpendicular to the ground per unit time.
3.4
Dust prevention precededust
The atmospheric particulate matter collected by the dust collector is settled due to the gravity of the particulate matter itself. Generally, the aerodynamic diameter Dp is greater than
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