干旱区生态环境知识资源中心(Arid): 基于QuickBird数据的塔里木河下游荒漠林地上生物量估测

Arid

	基于QuickBird数据的塔里木河下游荒漠林地上生物量估测
其他题名	Aboveground Biomass Estimation of Desert Forest in the Lower Reaches of Tarim River Based on QuickBird Image
	杨帆 1; 张绘芳 2; 李霞 1; 周艳飞 1; 丁程锋 1
来源期刊	新疆农业科学
ISSN	1001-4330
出版年	2014
卷号	51 期号:11 页码:2066-2072
中文摘要	[目的]森林生物量是衡量森林生态系统结构和功能的量化指标,基于高分辨遥感数据,研究塔里木河下游荒漠林地上生物量及其空间分布特征,为定量评定研究区生态恢复、进行不同尺度遥感监测提供依据。[方法]以塔里木河下游喀尔达依断面为研究区,基于QuickBird 数据,采用人机交互方法对不同地下水埋深条件下胡杨、柽柳树冠进行解译,根据解译结果采用已建立的树冠、树干与生物量估测模型,计算以胡杨、柽柳为主的荒漠林地上生物量,并分析其与地下水埋深的关系。[结果]研究区距离河0 ~ 300、300 ~ 600、600 ~900、900 ~ 1 200以及1 200 ~ 1 500 m,荒漠林地上生物量分别为11. 31、2. 7、2. 09、1. 58和1. 17 t /hm~2 ; 距离河300 ~ 600 m 荒漠林单位面积生物量变化最大,比距离河300 m 内下降了76%。[结论]研究区林分密度及地上生物量均明显受制于地下水埋深。自2000年至2004年历经5 a 的输水后,地下水埋深对荒漠植被地上生物量的影响主要集中在距离河道300m 内。
英文摘要	[Objective]Forest biomass is a measure quantitative indicators of forest ecosystem structure and function. The purpose of project aims to study the aboveground biomass of desert forest in the lower reaches of Tarim River and its spatial distribution based on high-resolution remote sensing data has important implications to quantitative assessment of the ecological restoration of the study area and remote monitoring at different scales.[Method]Taking Kaerdayi section in the lower reaches of Tarim River as the study area,using the method of man-computer interaction to interpret the crown of Populus euphratica and Tamarix ramossissima under different groundwater depths based on the QuickBird data,according to the interpretation results and canopy,tree trunks and the biomass estimation model which has been established, desert forest aboveground biomass of dominant Populus euphratica and Tamarix ramossissima were calculated and its relationship with the groundwater depth was analyzed.[Result]0-300 m, 300-600 m,600-900 m, 900-1 200 m and 1 200-1 500 m away from the river,desert forest aboveground biomass was 11. 31,2. 7,2. 09,1. 58 and 1. 17 t /hm~2 ; biomass of the desert forest was the largest in 300-600 m places away from the river,76% lower than the biomass within 300 m area from the river. [Conclusion]Stand density and aboveground biomass in the study area was significantly constrained by groundwater depth. From 2000a to 2004a,after 5 years of water transport,the influence of groundwater depth on desert vegetation aboveground biomass mainly concentrated in 0-300 m place away from the river.
中文关键词	生物量 ; QuickBird数据 ; 塔里木河下游 ; 胡杨 ; 柽柳
英文关键词	biomass QuickBird data the lower reaches of Tarim River P. euphratica T. ramosissima
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENGINEERING ELECTRICAL ELECTRONIC
WOS研究方向	Engineering
CSCD记录号	CSCD:5322605
来源机构	新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231950
作者单位	1.新疆农业大学草业与环境科学学院, 乌鲁木齐, 新疆 830052, 中国; 2.新疆林业科学院现代林业研究所, 乌鲁木齐, 新疆 830000, 中国
推荐引用方式 GB/T 7714	杨帆,张绘芳,李霞,等. 基于QuickBird数据的塔里木河下游荒漠林地上生物量估测[J]. 新疆农业大学,2014,51(11):2066-2072.
APA	杨帆,张绘芳,李霞,周艳飞,&丁程锋.(2014).基于QuickBird数据的塔里木河下游荒漠林地上生物量估测.新疆农业科学,51(11),2066-2072.
MLA	杨帆,et al."基于QuickBird数据的塔里木河下游荒漠林地上生物量估测".新疆农业科学 51.11(2014):2066-2072.