Spatial distribution of Tamarix ramosissima aboveground biomass and water consumption in the lower reaches of Heihe River, Northwest China

Based on the field observation on the Tamarix ramosissima populations in the lower reaches of Heihe River, the relationship models between the aboveground biomass of T. ramosissima and its morphological features (basal diameter, height, and canopy perimeter) were built. In the mean time, the land us...

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Bibliographic Details
Published inYing yong sheng tai xue bao Vol. 21; no. 8; p. 1940
Main Authors Peng, Shou-Zhang, Zhao, Chuan-Yan, Peng, Huan-Hua, Zheng, Xiang-Lin, Xu, Zhong-Lin
Format Journal Article
LanguageChinese
Published China 01.08.2010
Subjects
Biomass
China
Ecosystem
Rivers
Tamaricaceae - growth & development
Tamaricaceae - metabolism
Water - metabolism
China
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Summary:Based on the field observation on the Tamarix ramosissima populations in the lower reaches of Heihe River, the relationship models between the aboveground biomass of T. ramosissima and its morphological features (basal diameter, height, and canopy perimeter) were built. In the mean time, the land use/cover of the study area was classified by the decision tree classification with high resolution image (QuickBird), the distribution of T. ramosissima was extracted from classification map, and the morphological feature (canopy perimeter) of T. ramosissima was calculated with ArcGIS 9.2. On the bases of these, the spatial distribution of T. ramosissima aboveground biomass in the study area was estimated. Finally, the spatial distribution of the water consumption of T. ramosissima in the study area was calculated by the transpiration coefficient (300) and the aboveground biomass. The results showed that the aboveground biomass of T. ramosissima was 69644.7 t, and the biomass per unit area was 0.78 kg x m(-2). Spati
ISSN:1001-9332