帮助 关于我们

返回检索结果

中国西南喀斯特森林土壤有机碳空间变化及影响因素
Spatial Variation of Soil Organic Carbon in Karst Forests of the Southwestern China and Its Affecting Facters

查看参考文献64篇

黄一敏 1   李心清 1 *   杨放 1   黄代宽 2   邢英 3  
文摘 喀斯特地区土壤碳储量及其影响因素的认识是评估我国陆地土壤生态系统碳汇能力不可或缺的内容。本文通过对中国西南北起秦岭北坡南至中越边境一条剖面上土壤有机碳的分析,研究了喀斯特森林0~10 cm土壤有机碳空间变化及其控制因素。研究发现西南地区土壤有机碳含量和碳密度平均为32.3 g/kg和33.1 t /hm~2。无论是在整个西南区还是其省市范围内,二者均低于非喀斯特森林土壤。通径分析表明,影响喀斯特表层土壤碳含量和密度的主要因素有土壤容重、地形海拔和有机质C/N;粘粒含量和年平均气温的影响很小,而降水量仅在地处最北部的陕西省构成了土壤碳密度的影响因素。此现象与世界许多地区特别是高纬度地区形成鲜明对比。本研究结果表明,不同区域/气候带土壤碳库的主要影响因素会存在很大差异,这对认识气候变化背景下土壤碳库的反馈作用具有重要意义。
其他语种文摘 Knowledge of the soil carbon storage and its affecting factors to Karst area is indispensable for understanding the capacity of carbon sequestration by terrestrial ecosystems of China. Based on analysis of soil organic carbon in a continuous transect from the northern slope of the Qinling Mountains, the Central China, to the border of China to Vietnam, we studied spatial variation and its controlling factors of soil organic carbon to the top 10 cm of soil profile in Karst forests of the Southwestern China. We found that soil organic carbon content (SOC) and soil organic carbon density (SOCD) averaged 32.3 g/kg and 33.1 t/hm~2, respectively. These values are both lower than that of the forest soil of non-Karst forests in either the Southwestern China or its provinces. Path analysis indicates that soil bulk density, topographic elevation and C/N of soil organic matter are major factors to the variations of SOC and SOCD while clay content and annual temperature exert little impact, and annual precipitation only affects SOCD of Shaanxi Province in the most northern part of the studying region, where semi-arid climate dominates. The trivial effect of climate to the soil organic carbon inventory contrasts sharply with many parts of the world, especially at high latitudes, suggesting that major factors to soil organic carbon may differ from region to region or climate to climate. The results are important for understanding the feedback of soil organic carbon stock to the current global warming.
来源 地球与环境 ,2016,44(1):1-10 【核心库】
DOI 10.14050/j.cnki.1672-9250.2016.01.001
关键词 土壤碳库 ; 气候变化 ; 碳储量 ; 喀斯特 ; 碳酸盐岩 ; 石漠化
地址

1. 中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550002  

2. 贵州省环境科学研究院, 贵阳, 550001  

3. 贵州师范大学, 贵阳, 550000

语种 中文
文献类型 研究性论文
ISSN 1672-9250
学科 农业基础科学
基金 中国科学院战略性先导科技专项 ;  国家重大科学研究计划项目 ;  中国科学院地球化学研究所135项目
文献收藏号 CSCD:5636487

参考文献 共 64 共4页

1.  Lal R. Soil carbon sequestration impacts on global climate change and food security. Science,2004,304(5677):1623-1627 被引 888 次    
2.  Bautista F. Spatial heterogeneity of the soil cover in the Yucatan karst: Comparison of Mayan, WRB, and numerical classifications. Eurasian Soil Science,2005,38:S81-S88 被引 1 次    
3.  Lu X. Effect of vegetation types on chemical and biological properties of soils of karst ecosystems. European Journal of Soil Biology,2014,61:49-57 被引 1 次    
4.  Heilman J L. Water-storage capacity controls energy partitioning and water use in karst ecosystems on the Edwards Plateau, Texas. Ecohydrology,2014,7(1):127-138 被引 4 次    
5.  Chen X B. Effects of Land Cover on Soil Organic Carbon Stock in a Karst Landscape with Discontinuous Soil Distribution. Journal of Mountain Science,2014,11(3):774-781 被引 12 次    
6.  Liu T Z. Dissolved organic carbon and its carbon isotope compositions in hill slope soils of the karst area of southwest China: Implications for carbon dynamics in limestone soil. Geochemical Journal,2014,48(3):277-285 被引 4 次    
7.  Li L. Soil organic carbon fractions and microbial community and functions under changes in vegetation: a case of vegetation succession in karst forest. Environmental Earth Sciences,2014,71(8):3727-3735 被引 3 次    
8.  Khadka M B. Transport of dissolved carbon and CO2 degassing from a river system in a mixed silicate and carbonate catchment. Journal of Hydrology,2014,513:391-402 被引 13 次    
9.  Jin J. Organic and inorganic carbon dynamics in a karst aquifer: Santa Fe River Sink-Rise system, north Florida, USA. Journal of Geophysical Research-Biogeosciences,2014,119(3):340-357 被引 1 次    
10.  Hobley E. Stability and storage of soil organic carbon in a heavy-textured Karst soil from south-eastern Australia. Soil Research,2014,52(5):476-482 被引 5 次    
11.  Liu C. Biogeochemical processes and cycling of nutrients in the earth's surface: cycling of nutrients in soil-plant systems of karstic environments, Southwest China,2009 被引 1 次    
12.  Zhang Z H. Spatial patterns and interspecific associations of dominant tree species in two old-growth karst forests, SW China. Ecological research,2010,25(6):1151-1160 被引 34 次    
13.  Wang S J. Karst rocky desertification in southwestern China: geomorphology, landuse, impact and rehabilitation. Land degradation & development,2004,15(2):115-121 被引 149 次    
14.  王世杰. 喀斯特石漠化概念演绎及其科学内涵的探讨. 中国岩溶,2002,21(2):101-105 被引 238 次    
15.  龙健. 贵州喀斯特地区土壤石漠化的本质特征研究. 土壤学报,2005,42(3):419-427 被引 88 次    
16.  袁海伟. 喀斯特峰丛洼地不同土地利用类型土壤有机碳和氮素分布特征. 生态学杂志,2007,26(10):1579-1584 被引 39 次    
17.  周文龙. 喀斯特石漠化综合治理区表层土壤有机碳密度特征及区域差异. 土壤通报,2011,42(5):1131-1137 被引 11 次    
18.  张伟. 典型喀斯特峰丛洼地土壤有机碳含量空间预测研究. 土壤学报,2012,49(3):601-606 被引 23 次    
19.  李新爱. 喀斯特地区不同土地利用方式对土壤有机碳、全氮以及微生物生物量碳和氮的影响. 应用生态学报,2006,17(10):1827-1831 被引 68 次    
20.  黄宗胜. 喀斯特森林植被自然恢复过程中土壤有机碳库特征演化. 土壤学报,2013,50(2):84-92 被引 3 次    
引证文献 11 篇

1 阿不都赛买提·乃合买提 伊犁昭苏草原黑钙土不同海拔高度土壤有机碳的垂直分布特征 新疆农业科学,2017,54(1):156-164
被引 1 次

2 张珍明 喀斯特小流域土壤有机碳分布特征及其影响因素 地球与环境,2017,45(1):38-45
被引 3 次

显示所有11篇文献

论文科学数据集
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