LY/T 1698-2007 English PDF

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LY/T 1698-2007: Indicator system for long-term observation of desert ecosystem

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Basic data

Standard ID: LY/T 1698-2007 (LY/T1698-2007)
Description (Translated English): Indicator system for long-term observation of desert ecosystem
Sector / Industry: Forestry Industry Standard (Recommended)
Classification of Chinese Standard: B65
Classification of International Standard: 65.020
Word Count Estimation: 9,992
Date of Issue: 2007-06-04
Date of Implementation: 2007-10-01
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 Desert Ecosystem Observation indicators, namely meteorological indicators, soil indicators, hydrological indicators and biological indicators. This standard applies to desert ecosystems nationwide positioning observation.

LY/T 1698-2007: Indicator system for long-term observation of desert ecosystem

---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.
Indicator system for long-term observation of desert ecosystem ICS 65.020 B65 People's Republic of China Forestry Industry Standard Desert 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. Chinese Academy of Forestry, Shapotou Desert Experimental Research Station, Chinese Academy of Sciences, Gansu Minqin Desert Grass National Wildlife Science Observation and Research Station of the Earth Ecosystem. The main drafters of this standard. Lu Qi, Cao Yanli, Jia Zhiqing, Cui Xianghui, Li Xinrong, Zhao Ming, Hao Yuguang. This standard was first published. Desert ecosystem positioning observation index system

1 Scope

This standard specifies the observation indicators for desert ecosystems, namely meteorological indicators, soil indicators, hydrological indicators and biological indicators. This standard applies to the positioning observation of desert ecosystems nationwide.

2 Terms and definitions

The following terms and definitions apply to this standard. 2.1 a biome that is dominated by super-dry, dry-small trees, shrubs, semi-shrubs, and herbaceous plants, as well as sparse precipitation, strong evaporation, and dry A natural ecosystem formed by a dry abiotic environment. 2.2 Some physical phenomena occurring in the atmosphere and on the ground under certain weather conditions, including precipitation phenomena (such as rain, snow, hail, hail, etc.), Ground condensation (such as dew, frost, smog, etc.), visual obstacles (such as fog, snow storms, sand, sandstorms, floating dust, etc.), lightning phenomena (such as thunderstorms, Lightning, aurora, etc. and other phenomena (such as high winds, smog, tornadoes, dust winds, ice needles, snow, ice, etc.). 2.3 The vertical depth from the snow surface to the ground. 2.4 The weight of snow on a unit area. 2.5 Particles that naturally fall from the air by gravity in the dust collecting cylinder. 2.6 The depth of the water layer lost by evaporation on the free surface of a certain caliber evaporator over a certain time interval. 2.7 Any soil (or rock) that is at zero or negative temperature and contains ice. 2.8 Microscopic biological components and soils of bacteria, fungi, mosses, algae and lichens that grow on the soil surface and below the soil surface The composite level formed by the interaction. 2.9 The ratio of pore volume in a unit volume of soil. A pore diameter of less than 0.1 mm is called capillary pores, and the pore diameter is larger than 0.1 mm. It is called non-capillary pores. ......

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