Open AccessDynamic Changes of Aboveground Biomass of Vegetation in Qaidam Basin
Author(s) -
Yongsheng Du,
Weiguo He,
Jianping Zhou,
Songyao Ma,
Jian Yuan,
Yagang Wang
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/428/1/012086
Subject(s) - vegetation (pathology) , structural basin , biomass (ecology) , environmental science , normalized difference vegetation index , hydrology (agriculture) , physical geography , geology , geography , climate change , geomorphology , oceanography , medicine , geotechnical engineering , pathology
In order to monitor the temporal and spatial dynamics of vegetation in the Qaidam Basin, the ground-based vegetation biomass model of the basin was established by using basin ground measurements data during 2016-2018 and NDVI of MOD13Q1: Y=0.0002X2-0.863X+2052.4(R 2 =0.7656, P<0.01), and using this model to estimate the long-term aboveground biomass data set of the vegetation of basin. Above-ground biomass of vegetation is mainly low-yield vegetation of less than 1500 kg/hm 2 , followed by vegetation of 1500-3000 kg/hm 2 , the area of which accounts for less than 10% of the total vegetation area, and the vegetation of the other levels is very small, only scattered, High-yield vegetation which is greater than 6000 kg/hm 2 is distributed in the southeast of the basin and in the alpine mountains around the basin