帮助 关于我们

返回检索结果

基于土地利用变化情景的生态系统碳储量评估——以太行山淇河流域为例
Assessment of territorial ecosystem carbon storage based on land use change scenario: A case study in Qihe River Basin

查看参考文献49篇

文摘 区域土地利用变化是导致生态系统碳储量变化的主要原因,影响其碳源、碳汇效应,但以往结合时空尺度探讨流域未来土地利用变化对生态系统碳储量影响的研究尚不多见。以太行山淇河流域为例,分析2005-2015年土地利用变化,采用Markov-CLUE-S复合模型预测2025年自然增长、耕地保护及生态保护情景下的土地利用格局,并基于土地利用数据,运用InVEST模型的碳储量模块评估2005-2015年及未来不同情景下的生态系统碳储量。结果表明:①2015年淇河流域生态系统碳储量和平均碳密度分别为3.16x10~7 t和141.9 t/hm~2,自2005年以来分别下降0.07×10~7t和2.89t/hm~2。②2005-2015年碳密度在低海拔区域以减少为主,在高海拔区域增加区与减少区比例相当,淇河中下游地区建设用地的大肆扩张以及上游林地的退化是导致碳密度下降的主要原因。③2015-2025年自然增长情景下碳储量和碳密度下降仍较明显,主要是低海拔区域固碳能力的减弱;耕地保护情景减缓了碳储量和碳密度的下降幅度,主要是由于低海拔区固碳能力的增强;生态保护情景下,碳储量和碳密度显著增加,分别达到3.19×10~7t和143.26 t/hm~2,主要发生在海拔高于1100 m的区域。生态保护情景能够增强固碳能力,但不能有效控制耕地面积的减小。因此,研究区土地利用规划可统筹考虑生态保护和耕地保护情景,既能增加碳汇,又能保障耕地质量和粮食安全。
其他语种文摘 The change of regional land use is the main cause for the change of carbon storage in territorial ecosystem, which affects the process of carbon emission and sink. However, previous studies on the impact of future land use change on ecosystem carbon storage considering temporal and spatial scales in the basin are still absent. This study analyzed land use change from 2005 to 2015 in the Qihe River Basin, Taihang mountainous areas, and used Markov-CLUE-S composite models to predict land use pattern of this region in 2025,under three scenarios of natural growth, farmland protection and ecological conservation. Based on the data of land use, we used carbon storage module in InVEST model to evaluate carbon storage of territorial ecosystem during the past 10 years and the future. The results showed that: (1) The carbon storage and carbon density of the ecosystem in the Qihe River Basin in 2015 were 3.16× 10~7t and 141.9 t/hm~2, respectively, and they both had decreased by 0.07× 10~7t and 2.89 t/hm~2 during the 10 years. (2) From 2005 to 2015,the carbon density was mainly reduced in low altitude areas, and the ratio of the increased areas was similar to that of the reduced areas in the high altitude areas. The decrease of carbon density was mainly caused by expansion of construction land in the middle and lower reaches, and degradation of forestland in the upper reach of Qihe River Basin. (3) From 2015 to 2025,the carbon storage and carbon density of ecosystem will decrease by 0.03 × 10~7 t and 1.38 t/hm~2 respectively in the natural growth scenario, mainly due to the reduction of carbon sequestration capacity in low altitude areas. The farmland conservation scenario will slow down the decrease of carbon storage and carbon density (0.01 × 10~7 t and 0.44 t/hm~2), mainly due to the enhancement of carbon sequestration capacity in low altitude areas. The ecological protection scenario will increase carbon storage and carbon density significantly to 3.19×10~7t and 143.26 t/hm~2 respectively, mainly appearing in the area above 1100 m. The ecological protection scenario can enhance carbon sequestration capacity, but it cannot effectively control the loss of farmland area. Therefore, the land use planning of the study area can comprehensively consider the ecological protection scenario and farmland conservation scenario, which not only increases carbon sink, but also ensures the farmland quality and food security.
来源 地理学报 ,2019,74(3):446-459 【核心库】
DOI 10.11821/dlxb201903004
关键词 土地利用 ; Markov-CLUE-S复合模型 ; InVEST模型 ; 碳储量 ; 情景模拟 ; 淇河流域
地址

河南大学环境与规划学院, 开封, 475004

语种 中文
文献类型 研究性论文
ISSN 0375-5444
基金 国家973计划 ;  国家自然科学基金项目
文献收藏号 CSCD:6447508

参考文献 共 49 共3页

1.  Schimel D S. Recent patterns and mechanisms of carbon recent patterns and mechanisms of carbon exchange by terrestrial ecosystems. Nature,2001,414(6860):169-172 被引 226 次    
2.  Piao S. The carbon balance of terrestrial ecosystems in China. Nature,2009,458(7241):1009-1013 被引 449 次    
3.  季劲钧. 21世纪中国陆地生态系统与大气碳交换的预测研究. 中国科学:地球科学,2008,38(2):211-223 被引 1 次    
4.  方精云. 中国陆地生态系统固碳效应——中国科学院战略性先导科技专项“应对气候变化的碳收支认证及相关问题”之生态系统固碳任务群研究进展. 中国科学院院刊,2015,30(6):848-857 被引 55 次    
5.  戴尔阜. 内蒙古草地生态系统碳源/汇时空格局及其与气候因子的关系. 地理学报,2016,71(1):21-34 被引 44 次    
6.  Houghton R A. Chapter G2 Carbon emissions from land use and land-cover change. Biogeosciences,2012,9(1):5125-5142 被引 44 次    
7.  Baumann M. Carbon emissions from agricultural expansion and intensification in the Chaco. Global Change Biology,2017,23(5):1902-1916 被引 8 次    
8.  Foley J A. Global consequences of land use. Science,2005,309(5734):570-574 被引 685 次    
9.  Houghton R A. Revised estimates of the annual net flux of carbon to the atmosphere from changes in land use and land management 1850-2000. Tellus,2003,55(2):378-390 被引 106 次    
10.  Baccini A. Estimated carbon dioxide emissions from tropical deforestation improved by carbon-density maps. Nature Climate Change,2012,2(3):182-185 被引 31 次    
11.  Houghton R A. Carbon emissions and the drivers of deforestation and forest degradation in the tropics. Current Opinion in Environmental Sustainability,2012,4(6):597-603 被引 10 次    
12.  Navin R. Challenges to estimating carbon emissions from tropical deforestation. Global Change Biology,2007,13(1):51-66 被引 12 次    
13.  Gutierrez-Velez V H. Influence of carbon mapping and land change modelling on the prediction of carbon emissions from deforestation. Environmental Conservation,2012,39(4):325-336 被引 2 次    
14.  Nogueira E M. Carbon stocks and losses to deforestation in protected areas in Brazilian Amazonia. Regional Environmental Change,2018,18(5):261-270 被引 9 次    
15.  Tao Y. Variation in ecosystem services across an urbanization gradient:A study of terrestrial carbon stocks from Changzhou, China. Ecological Modelling,2015,318(1):210-216 被引 4 次    
16.  Lai L. Carbon emissions from land-use change and management in China between 1990 and 2010. Science Advances,2016,2(11):e1601063 被引 69 次    
17.  赵明伟. 基于HASM的中国森林植被碳储量空间分布模拟. 地理学报,2013,24(9):1212-1224 被引 12 次    
18.  Laganiere J. Carbon accumulation in agricultural soils after afforestation:A meta-analysis. Global Change Biology,2010,16(1):439-453 被引 62 次    
19.  廖亮林. 2005-2013年中国新增造林植被生物量碳库固碳潜力分析. 地理学报,2016,71(11):1939-1947 被引 9 次    
20.  Han X. Understanding soil carbon sequestration following the afforestation of former arable land by physical fractionation. Catena,2017,150:317-327 被引 9 次    
引证文献 72 篇

1 任坤 岩溶区不同土地利用下地下水碳同位素地球化学特征及生态意义 环境科学,2019,40(10):4523-4531
被引 5 次

2 邓元杰 退耕还林还草工程对生态系统碳储存服务的影响——以黄土高原丘陵沟壑区子长县为例 自然资源学报,2020,35(4):826-844
被引 36 次

显示所有72篇文献

论文科学数据集

1. 黑河流域土地利用与覆被未来情景模拟结果（2015-2030）

数据来源：
国家青藏高原科学数据中心

1. 南京市六合区土地利用空间变化生态价值益损数据集（2009，2019）

2. 2015年京津冀城市群30米土地利用（覆盖）数据

3. 广州市番禺区土地利用及空间距离参数数据集(1999，2008)

数据来源：
国家对地观测科学数据中心
PlumX Metrics
相关文献

 作者相关
 关键词相关
 参考文献相关

版权所有 ©2008 中国科学院文献情报中心 制作维护：中国科学院文献情报中心
地址：北京中关村北四环西路33号 邮政编码：100190 联系电话：(010)82627496 E-mail:cscd@mail.las.ac.cn 京ICP备05002861号-4 | 京公网安备11010802043238号