西北林学院学报2011，Vol.26Issue(2)：31-37,7.
古尔班通古特沙漠不同生态类型梭梭地上生物量估算模型
Estimation Models of the Aboveground Biomass of Haloxylon ammodendron in the Different Ecotype of Gurbantunggut Desert
摘要
Abstract
The aboveground biomass and biomass of the stems with the diameter of≥3 cm and the stems with the diameter of ＜3 cm of Haloxylon ammodendron in 3 ecotypes of Gurbantunggut Desert were investigated by using the D2H as variable (basal diameter D and plant height H). The fitted estimation models were established. The results showed that the aboveground, thick branch and thin branch biomass of H. ammodendron were closely correlated with D2H. The aboveground biomass manifested the relative growth law similar to that of tree, and the power equation was suitable as the estimation model. To estimate the thick and thin branch biomass, the power equation was the best in sand ecotype, and the quadratic polynomial equation was the best in salt and gravel ecotypes. The simulating precision of these models exceeded 85 ％, and they had a relatively high assess accuracy.关键词
梭梭/古尔班通古特沙漠/地上生物量/估算模型分类
农业科技引用本文复制引用
宋于洋,胡晓静..古尔班通古特沙漠不同生态类型梭梭地上生物量估算模型[J].西北林学院学报,2011,26(2):31-37,7.基金项目
新疆生产建设兵团重点公益林生物多样性保护及生态状况监测项目(兵财企2006-813号). （兵财企2006-813号）
