基于土地利用/覆被分类系统估算碳储量的差异--以海南岛森林为例
The Difference of Computing Carbon Stocks Caused by Land Use/Cover Classifications--A Case Studied in Hainan Province
查看参考文献32篇
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文摘
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土地利用/覆被分类系统是碳蓄积研究的依据,然而各种碳蓄积研究所采用的土地利用/覆被分类系统不尽相同.根据1993年海南林业资源二类调查资料,我们按照USGS土地利用/覆被、LCCS土地覆被和中国科学院土地资源三种分类系统所定义的类别进行分类并计算了各自的碳储量和碳密度,为碳储量的进一步精确估算和土地覆被分类系统研制提供重要的科学依据.结果发现,(1)不同的土地利用/覆被分类系统所对应的总碳储量以及平均碳密度都有了明显的差别.林业调查资料的植被分类、FAO土地覆被分类系统(LCCS)、USGS土地利用/土地覆被分类系统以及我国学者常用的中国科学院土地资源分类系统的碳蓄积量(Tg C)分别是28.98、28.71、21.04和21.04;碳密度(t C/ha)分别是31.24、30.95、22.68和22.68.(2)土地利用分类系统和土地覆被分类系统之间的结果具有较大差异,其碳储量相差7.67～7.94TgC,碳密度则相差8.27～8.56t C/ha;差距在26.47%～37.74%之间.与其他学者研究结果比较发现,土地利用/覆被分类系统造成的碳蓄积差异的变化方向是不定的,取决于具体的分类系统和材积-生物量函数.不同土地利用/覆被分类系统对于植被划分的不同,导致了材积-生物量回归方程和类别面积的差异是造成碳蓄积和碳密度估算差异的根本原因.目前常用的土地利用/覆被分类系统在估算碳蓄积中存在一定问题,不适合于高精度的碳蓄积计算.体现地表植被生物量差异、植被叶型和外貌特征、种类及树龄差异等内涵的土地利用/覆被分类系统利于陆地碳循环研究的深化. |
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其他语种文摘
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The classifications of land use/cover are basis of computing carbon stocks. However they differ from each other in various carbon storage researches. Based on the,National Forest Resource Inventory database of Hainan Province in 1993, we classified the data according to the different land use/cover classifications: USGS Land use/cover Classification, LCCS Land cover Classification and CAS Land Resource Classification, and calculated the carbon stocks and densities. The results may help in accurate carbon estimation and classification researches. It was shown that there was a difference between each classification in carbon stocks and densities. Based on National Forest Resource Inventory database, Anderson Land use/cover Classification, LCCS Land cover Classification and CAS Land Resource Classification the carbon stocks (Tg C) were 28.98, 28.71, 21.04 and 21.04, respectively; the carbon densities (t C/ha) were 31.24, 30.95, 22.68 and 22.68, respectively. What is more, the differences between land use and land cover classifications were distinct: 7.67~7.94 Tg C in carbon stocks as well as 8.27~8.56 t C/ha in carbon densities. In comparation with other scholar's work, the increase or decrease of carbon stocks was not definite according to specific classifications and BEF functions. Different classifications of land use/covers leading to different BEF functions and areas caused the disparate results. Although there were several different land use/cover classifications, they had difficulties in accurate computing carbon storage. Thus the different biomass, different leaf and figure types, different species and different forest age classes are needed in a land use/cover classification for farther carbon cycle researches. |
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来源
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地理科学进展
,2004,23(6):63-70 【核心库】
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关键词
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碳储量差异
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土地利用/土地覆被
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森林植被
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海南岛
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地址
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1.
中国科学院地理科学与资源研究所, 北京, 100101
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中国科学院西北高原生物研究所, 西宁, 810008
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-6301 |
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学科
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社会科学总论;大气科学(气象学);林业 |
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基金
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中国科学院地理科学与资源研究所知识创新工程主干科学计划
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文献收藏号
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CSCD:1800401
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参考文献 共
32
共2页
|
|
1.
曲建升. 全球变化科学中的碳循环研究进展与趋向.
地球科学进展,2003,18(6):980-987
|
被引
42
次
|
|
|
|
|
2.
史军. 造林对陆地碳汇影响的研究进展.
地理科学进展,2004:58-67
|
被引
1
次
|
|
|
|
|
3.
耿元波. 陆地碳循环研究进展.
地理科学进展,2000,19(4):297-306
|
被引
46
次
|
|
|
|
|
4.
周玉荣. 我国主要森林生态系统碳贮量和碳平衡.
植物生态学报,2000,24(5):518-522
|
被引
571
次
|
|
|
|
|
5.
Brown S. current status and future challenges.
Environmental Pollution,2002,116:363-372
|
被引
63
次
|
|
|
|
|
6.
Fang Jingyun. Changes in Forest Biomass Carbon Storage in China Between 1949 and 1998.
Science,2001,292
|
被引
1
次
|
|
|
|
|
7.
王效科. 中国森林生态系统的植物碳储量和碳密度研究.
应用生态学报,2001,12(1):13-16
|
被引
386
次
|
|
|
|
|
8.
Ben H J de Jong. Carbon Flux and Patterns of Land-Use/Land-Cover Change in the Lacandona.
Carbon Flux and Patterns of Land-Use/Land-Cover Change in the Lacandona, Mexico. Ambio,2000,29(8):504-551
|
被引
1
次
|
|
|
|
|
9.
San Jose J J. Carbon stocks and fluxes in a temporal scaling from a savanna to a semi-deciduous forest.
Forest Ecology and Management,1998,105:251-262
|
被引
1
次
|
|
|
|
|
10.
Brown S. A Primer.
Estimating Biomass and Biomass change of Tropical Forests: A Primer. FAO Forestry Paper 134,1997
|
被引
1
次
|
|
|
|
|
11.
于贵瑞.
全球变化与陆地生态系统碳循环和碳蓄积,2003
|
被引
112
次
|
|
|
|
|
12.
Houghton R A. 1850 to 1990.
The Woods Hole Research Center,1990
|
被引
1
次
|
|
|
|
|
13.
李克让. 中国植被和土壤碳贮量.
中国科学(D辑),2003,33(1):72-80
|
被引
258
次
|
|
|
|
|
14.
曹军. 近20年海南岛森林生态系统碳储量变化.
地理研究,2002,21(5):552-560
|
被引
1
次
|
|
|
|
|
15.
刘国华. 中国森林碳动态及其对全球碳平衡的贡献.
生态学报,2000:733-740
|
被引
381
次
|
|
|
|
|
16.
方精云. 中国森林植被碳库的动态变化及其意义.
植物学报,2001,43(9):967-973
|
被引
299
次
|
|
|
|
|
17.
Anderson J R. et al.
A Land Use And Land Cover Classification System For Use With Remote Sensor Data,1976
|
被引
20
次
|
|
|
|
|
18.
Gregorio A D. Classification Concepts and User Manual.
Land Cover Classification System (LCCS): Classification Concepts and User Manual, FAO 2000,2000
|
被引
1
次
|
|
|
|
|
19.
Running S W. A Remote Sensing Based Vegetation Classification Logic for Global Land Cover Analysis.
REMOTE SENS,1995,51:39-48
|
被引
1
次
|
|
|
|
|
20.
刘纪远. 国家资源环境遥感宏观调查与动态监测研究.
遥感学报,1997,1(3):225-230
|
被引
112
次
|
|
|
|
|
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