Derivation of pasture biomass in Mongolia from AVHRR-based vegetation health indices

被引：109

作者：

Kogan, F ^{[1
]}

Stark, R

Gitelson, A

Jargalsaikhan, L

Dugrajav, C

Tsooj, S

机构：

[1] NOAA, Natl Environm Satellite Data & Informat Serv, Washington, DC 20233 USA

[2] Beer Sheva Kal Syst Engn Ltd, Netanya, Israel

[3] Univ Nebraska, Lincoln, NE 68588 USA

[4] Mongolian Acad Sci, Inst Bot, Ulaanbaatar, Mongolia

来源：

INTERNATIONAL JOURNAL OF REMOTE SENSING | 2004年 / 25卷 / 14期

关键词：

D O I：

10.1080/01431160410001697619

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

Early drought detection and impact assessment on the amount of pasture biomass are important in Mongolia, whose economy strongly depends on livestock production. The country's large area and a lack of information on grass availability due to the sparseness of biomass-observing and/or meteorological stations make it difficult to optimize nomadic livestock output in the Mongolian dry climate. The application of a new satellite-based method for drought detection and for assessment of wild biomass in Mongolia was investigated. Measurements of biomass at an experimental station in a semi-dry steppe ecosystem during 1985-1997 were compared with the Advanced Very High Resolution Radiometer (AVHRR)-based vegetation health (VH) indices. The results showed the indices can be used as proxies for biomass production estimation (biomass anomaly, BA) applying the following equation BA=43.201+0.881 VHI (R-2 =0.658).

引用

页码：2889 / 2896

页数：8

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