干旱区生态环境知识资源中心(Arid): 近30年玛纳斯河流域土地利用/覆被变化对植被碳储量的影响

Arid

	近30年玛纳斯河流域土地利用/覆被变化对植被碳储量的影响
其他题名	Impact of Land Use/Cover Change on the Vegetation Carbon Storage in the Manas River Basin between 1976 and 2007
	柳梅英 1; 包安明1 ; 陈曦1 ; 刘海隆 2; 张红利 1; 陈晓娜 1
来源期刊	自然资源学报
ISSN	1000-3037
出版年	2010
卷号	25 期号:6 页码:926-938
中文摘要	天然植被退化,部分转变为人工植被和人类聚居区是干旱区绿洲过程的重要表现之一,而目前对土地利用变化影响植被碳储量的机制还不十分清楚. 论文尝试采用CASA模型及 1976--2007年4期9月份Landsat卫星影像估算玛纳斯河流域9种植被类型的净初级生产力,并通过植物枯损模型估算了流域内植被碳密度,进而估算出流域内各类型植被碳储量,最后分析土地利用/覆被类型间的转移对植被碳储量的影响. 结果表明,在1976--2007年间,受农作物种植结构及品种变化影响,绿洲农田植被碳密度变化较大;同期流域植被碳储量共增加了 50.5010~4tC,其中林地被乱砍乱伐,灌木林地、天然牧草地退化为荒草地使得流域植被碳储量减少了1.2110~4t;林地、农田、荒草地以及未利用地之间的转移使得流域植被碳储量总共增加了18.52*10~4tC. 研究结果显示,流域内植被碳储量总体呈增加趋势,且农田是影响流域植被碳储量的主要因素
英文摘要	Land use changes influence the distribution and structure of terrestrial ecosystems, and also change their carbon storage. One of the important performances in oasis process of arid area is that the natural vegetation degenerates, and the part of it was transformed into artificial vegetation and human communities. At present, the effect of LUCC on vegetation carbon storage mechanism is also not very clearly. According to the CASA model and by using the Landsat MSS/TM/ETM~+ data separately acquired in 1976, 1989, 2000 and 2007, this paper estimates the net primary productivity of the Manas River basin. Furthermore, we used mortality model to estimate vegetation carbon densities. Then, we got different types of vegetation carbon storage. Finally, we analyzed the impact of transformation during different land use/cover classifications on the vegetation carbon storage, in the Manas River basin between 1976 and 2007. Also, we traced the land conversions in the period between 1976 and 2007 and analyzed the changes among cropland, forest, shrubbery, natural grassland, waste-grassland, settlement place and so on. The result showed that because of the change of planting structure and species, the density of vegetation carbon changed greatly. The vegetation carbon storage increased 50.50 x 104 t C from 1976 to 2007. Then we find that different land types can be transferred to each other. Based on the above data, we calculated the impacts of cropland, forest, shrubbery, natural grassland and wasteland conversions on the vegetation carbon storage. It is found out that the vegetation carbon storage decreased 1.21 x 104t C due to land degradation and unlawful and uncontrolled felling of forests of the study area. At the same time, we found out that because a large area of unused land has been reclaimed as cropland, afforestation and conceding the cropland to forest and grass, the vegetation carbon storage increased 18.52 x 10~4 t C .The result showed that the total vegetation carbon storage was an increased trend, and we found out that the main factor, which affects the vegetation carbon storage, was cropland
中文关键词	土地利用/覆被变化 ; 植被碳储量 ; CASA模型 ; 玛纳斯河流域
英文关键词	land use/cover change vegetation carbon storage CASA model the Manas River basin
语种	中文
国家	中国
收录类别	CSCD
WOS类目	REMOTE SENSING
WOS研究方向	Remote Sensing
CSCD记录号	CSCD:3958456
来源机构	中国科学院新疆生态与地理研究所 ; 石河子大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226137
作者单位	1.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国; 2.石河子大学, 石河子, 新疆 832000, 中国
推荐引用方式 GB/T 7714	柳梅英,包安明,陈曦,等. 近30年玛纳斯河流域土地利用/覆被变化对植被碳储量的影响[J]. 中国科学院新疆生态与地理研究所, 石河子大学,2010,25(6):926-938.
APA	柳梅英,包安明,陈曦,刘海隆,张红利,&陈晓娜.(2010).近30年玛纳斯河流域土地利用/覆被变化对植被碳储量的影响.自然资源学报,25(6),926-938.
MLA	柳梅英,et al."近30年玛纳斯河流域土地利用/覆被变化对植被碳储量的影响".自然资源学报 25.6(2010):926-938.