文献类型: 外文期刊
第一作者: Dou, Xiaolin
作者: Dou, Xiaolin;Shu, Xiao;Zhang, Quanfa;Cheng, Xiaoli;Dou, Xiaolin;Xu, Xia
作者机构:
关键词: Afforestation;delta C-13;Density fractionation;delta N-15;Soil aggregates;Soil organic matter
期刊名称:ECOLOGICAL ENGINEERING ( 影响因子:4.035; 五年影响因子:4.611 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The afforestation has been proposed as a primary means of sequestering carbon (C) from the atmosphere, thereby mitigating climate change. However, consequences of afforestation on soil organic C and nitrogen (N) dynamics due to spatial heterogeneity are not fully understood. The objectives of this study were to identify the consequences of 18 years of afforestation on C and N dynamics in the Danjiangkou Reservoir area of central China. Soil samples from the woodland, shrubland, cropland and adjacent open area soils (i.e. the control) were separated into four aggregate sizes (>2000 mu m, 250-2000 mu m, 53-250 mu m and <53 mu m), and three density fractions [free light fraction (LF), intra-aggregate particulate organic matter (iPOM) and mineral-associated organic matter (mSOM)]. All fractions were analyzed for their C and N content, and delta C-13 and delta N-15 values. Afforestation enhanced the soil C and N storage, primarily due to increases in soil C and N storage of macroaggregates (>2000 mu m) with the largest (65-87%) fraction in iPOM. The C: N ratios generally increased from the cropland to shrubland to woodland across all fractions. The C-13 values indicated that the fastest decay rates (k = 0.024 yr(-1)) in LF of macroaggregates (>2000 mu m) was in woodland, but the fastest decay rates (0.114-0.137 yr(-1)) in iPOM of all aggregates were observed in cropland. Meanwhile, the most enriched delta N-15 values (0.87-3.81) were found in cropland soil. Our results suggest that afforestation could alter weight distribution of soil fractions and increase the soil organic C and N storage, thereby affecting the turnover and stability of SOM. (C) 2015 Elsevier B.V. All rights reserved.
分类号: Q14`X171
- 相关文献
作者其他论文 更多>>
-
The Identification and Gene Mapping of Spotted Leaf Mutant spl43 in Rice
作者:Wang, Chen;Liu, Wen-Jun;Liao, Xin-Wei;Xu, Xia;Yang, Shihua;Zhang, Xiao-Bo;Gong, Junyi;Wu, Jian-Li;Wang, Chen;Zhou, Hai;Zhuang, Chuxiong
关键词:spotted leaf mutant; OsRPT5A; map-based cloning; cell death; defense response; reactive oxygen species
-
Determination and dietary exposure assessment of 79 pesticide residues in Chinese onion (Allium fistulosum L.)
作者:Chu, Nengming;Shu, Xiao;Meng, Xia;Zhang, Xuemei;Yang, Junying;Li, Biquan;Chu, Nengming;Shu, Xiao;Meng, Xia;Zhang, Xuemei;Yang, Junying;Li, Biquan
关键词:Pesticides residue; dietary exposure assessment; Chinese onion; liquid chromatography; gas chromatography; tandem mass spectrometry
-
Comparative Proteomic Analysis Provides New Insights into the Molecular Basis of Thermal-Induced Parthenogenesis in Silkworm (Bombyx mori)
作者:Chen, Jine;Du, Xin;Xu, Xia;Yao, Lusong;He, Xiuling;Wang, Yongqiang;Zhang, Sheng
关键词:Bombyx mori; parthenogenesis; thermal induction; proteome; iTRAQ; PRM
-
Intersex regulates larval growth and wing development in Agrotis ipsilon
作者:Qian, Lansa;Xu, Xiaomiao;Dong, Yongcheng;Wang, Yaohui;Qian, Lansa;Yi, Meiyan;Bi, Honglun;Li, Xiaowei;Liu, Zulian;Fang, Gangqi;Huang, Yongping;Qian, Lansa;Xu, Xia
关键词:sex determination; development; CRISPR-Cas9; genetic regulation; gene function
-
Mapping and Functional Analysis of LE Gene in a Lethal Etiolated Rice Mutant at Seedling Stage
作者:Xia, Xiaodong;Xu, Rugen;Xia, Xiaodong;Zhang, Xiaobo;Wang, Zhonghao;Cheng, Benyi;Xu, Xia;Gong, Junyi;Yang, Shihua;Wu, Jianli;Shi, Yongfeng;Sun, Huifeng
关键词:Oryza sativa; lethal etiolated mutant; gene cloning; functional analysis; reactive oxygen species
-
Flavin mononucleotide in visible light photoinitiating systems for multiple-photocrosslinking and photoencapsulation strategies
作者:Sun, Guangdong;He, Xiuling;Feng, Meilin;Xu, Xia;Chen, Jine;Wang, Yongqiang;Sun, Guangdong
关键词:Flavin mononucleotide; Photocrosslinking; Hydrogel; Photoencapsulation; Fibroblast
-
Genomic insight into domestication of rubber tree
作者:Chao, Jinquan;Wu, Shaohua;Shi, Minjing;Yang, Shuguang;Zhang, Shixin;Deng, Xiaomin;Gao, Xinsheng;Zhang, Xiaofei;Hu, Yanshi;Zeng, Xia;Li, Weiguo;Tian, Wei-Min;Chao, Jinquan;Wu, Shaohua;Shi, Minjing;Yang, Shuguang;Zhang, Shixin;Deng, Xiaomin;Huang, Xiao;Gao, Xinsheng;Zhang, Xiaofei;Hu, Yanshi;Zeng, Xia;Li, Weiguo;Wu, Jilin;Hao, Bingzhong;Tian, Wei-Min;Chao, Jinquan;Wu, Shaohua;Shi, Minjing;Yang, Shuguang;Zhang, Shixin;Li, Yan;Deng, Xiaomin;Huang, Xiao;Gao, Xinsheng;Zhang, Xiaofei;Hu, Yanshi;Zeng, Xia;Li, Weiguo;Wu, Jilin;Hao, Bingzhong;Tian, Wei-Min;Xu, Xia;Du, Huilong;Fan, Xiuli;Hai, Chunyan;Kou, Liquan;Yu, Hong;Li, Jiayang;Liang, Chengzhi;Gao, Qiang;Zhang, Liangsheng;Gao, Qiang;Du, Huilong;Du, Huilong;Fan, Xiuli;Hai, Chunyan;Li, Jiayang;Liang, Chengzhi;Gao, Bin;Guo, Dong;Peng, Shiqing;Zhang, Jiao;Wang, Zhiwei;Li, Yan;Xue, Wenbo;Xu, Jiang;Wang, Xuchu;Li, Jiayang
关键词: