NPP Estimation in West Changbai Mountain Based on Landsat TM Data

• 作者: YU Zhong-chen YANG Chang-bao
• 来源期刊: 气象与环境研究：英文版
• 学科: 地球科学
• 关键词: LANDSAT NPP TM数据 长白山 估算 陆地生态系统 山西组 遥感模型
• 年，卷（期）: 2012,（6）
• 页码范围: 20-21
• 页数: 2页
• 分类号: P237

摘要

[Objective] The research aimed to estimate NPP in west Changbai Mountain in 1999 and 2001.[Method] Based on Landsat TM data,by using remote sensing model,NPP estimations of the vegetations at the same time phase of 1999 and 2001 in west Changbai Mountain were conducted.[Result] In 1999,the maximum of NPP in west Changbai Mountain was 134.408 3 t(DW)/(hm2·a),and the minimum was 7.885 2 t(DW)/(hm2·a).In 2001,the maximum of NPP in west Changbai Mountain was 86.372 3 t(DW)/(hm2·a),and the minimum was 17.566 3 t(DW)/(hm2·a).The maximum of NPP in west Changbai Mountain mainly concentrated in the mountain areas of Tumen City,Yanji City,Longjing City and Helong City.Distribution range of the NPP in 1999 was larger than that in 2001,and NPP value in 1999 was bigger than that in 2001.[Conclusion] We needed strengthening measurement and research of the NPP for large-scale terrestrial ecosystem.