Aaron B S, Sanford R L. 2001. Soil nutrient differences between two Krummholz-form tree species and adjacent alpine tundra. Geoderma, 102: 205–217.
Article
Google Scholar
Abakumov E V, Cajthaml T, Brus J, et al. 2013. Humus accumulation, humification and humic acid composition in soils of two post-mining chronosequences after coal mining. Journal of Soils Sediments, 13: 491–500.
Article
Google Scholar
Aerts R, Chapin F S. 1999. The mineral nutrition of wild plants revisited: a re-evaluation of processes and patterns. Advances in Ecological Research, 30: 1–67.
Article
Google Scholar
An S S, Huang Y M, Zheng F L. 2009. Evaluation of soil microbial indices along a revegetation chronosequence in grassland soils on the Loess Plateau, Northwest China. Applied Soil Ecology, 41: 286–292.
Article
Google Scholar
An S S, Mentler A, Mayer H, et al. 2010. Soil aggregation, aggregate stability, organic carbon and nitrogen in different soil aggregate fractions under forest and shrub vegetation on the Loess Plateau, China. Catena, 81: 226–233.
Article
Google Scholar
Bhojvaid P P, Timmer V R. 1998. Soil dynamics in an age sequence of Prosopis juliflora planted for sodic soil restoration in India. Forest Ecology and Management, 106: 181–193.
Article
Google Scholar
Cambardella C A, Elliott E T. 1992. Particulate soil organic-matter changes across a grassland cultivation sequence. Soil Science Society of America Journal, 56(3): 777–783.
Article
Google Scholar
Carter M R, Kunelius H T, Angers D A. 1994. Soil structural form and stability, and organic matter under cool-season perennial grasses. Soil Science Society of America Journal, 58(4): 1194–1199.
Article
Google Scholar
Cheng J M, Wan H E, Hu X M, et al. 2006. Accumulation and decomposition of litter in the semiarid enclosed grassland. Acta Ecologica Sinica, 26(4): 1207–1212. (in Chinese)
Google Scholar
DeLaune R D, Jugsujinda A, West J L, et al. 2005. A screening of the capacity of Louisiana freshwater wetlands to process nitrate in diverted Mississippi River water. Ecological Engineering, 25: 315–321.
Article
Google Scholar
Fu X L, Shao M G, Wei X R, et al. 2010. Soil organic carbon and total nitrogen as affected by vegetation types in Northern Loess Plateau of China. Geoderma, 155: 31–35.
Article
Google Scholar
Hefting M M, Clement J C, Bienkowski P, et al. 2005. The role of vegetation and litter in the nitrogen dynamics of riparian buffer zones in Europe. Ecological Engineering, 24: 465–482.
Article
Google Scholar
Hooper D U, Bignell D E, Brown V K, et al. 2000. Interactions between aboveground and belowground biodiversity in terrestrial ecosystems: patterns, mechanisms and feedbacks. Bioscience, 50(12): 1049–1061.
Article
Google Scholar
Hou F J, Xiao J Y, Nan Z B. 2002. Eco-restoration of abandoned farmland in the Loess Plateau. China. Chinese Journal of Applied Ecology, 13(8): 923–929. (in Chinese)
Google Scholar
Hu C J, Fu B J, Jin T T, et al. 2009. Effects of vegetation restoration on soil microbial biomass carbon and nitrogen in hilly areas of Loess Plateau. Chinese Journal of Applied Ecology, 20(1): 45–50. (in Chinese)
Google Scholar
Hua J, Zhao S W, Zhang Y, et al. 2009. Distribution characteristics of labile organic carbon in soil aggregates in different stages of vegetation restoration of grassland in Yunwu Mountain. Acta Ecologica Sinica, 29(9): 4613–4620. (in Chinese)
Google Scholar
Jia X X, Wei X R, Shao M A, et al. 2012. Distribution of soil carbon and nitrogen along a revegetational succession on the Loess Plateau of China. Catena, 95: 160–168.
Article
Google Scholar
Kang K, Shin H S, Park H. 2002. Characterization of humic substances present in landfill leachates with different landfill ages and its implications. Water Research, 36: 4023–4032.
Article
Google Scholar
Keeves A. 1966. Some evidence of loss of productivity with successive rotations of Pinus radiata in the south-east of South Australia. Australian Forestry, 30(1): 51–63.
Article
Google Scholar
Klavins M, Apsite E. 1997. Sedimentary humic substances from lakes in Latvia. Environment International, 23(6): 783–790.
Article
Google Scholar
Leifeld J, Kögel-Knabner I. 2005. Soil organic matter fractions as early indicators for carbon stock changes under different land-use? Geoderma, 124: 143–155.
Article
Google Scholar
Li H B, Han X Z, Wang F, et al. 2008. Distribution of soil organic carbon and nitrogen in density fractions on black soil as affected by land use. Acta Pedologica Sinica, 45(1): 112–119. (in Chinese)
Google Scholar
Li X R, Kong D S, Tan H J, et al. 2007. Changes in soil and vegetation following stabilization of dunes in the southeastern fringe of the Tengger Desert, China. Plant and Soil, 300: 221–231.
Article
Google Scholar
Martin D, Srivastava P C, Ghosh D, et al. 1998. Characteristics of humic substances in cultivated and natural forest soils of Sikkim. Geoderma, 84: 345–362.
Article
Google Scholar
Montalvo A M, Williams S L, Rice K J, et al. 1997. Restoration biology: a population biology perspective. Restoration Ecology, 5: 277–290.
Article
Google Scholar
Poeplau C, Don A. 2013. Sensitivity of soil organic carbon stocks and fractions to different land-use changes across Europe. Geogerma, 192: 189–201.
Google Scholar
Sparling G, Ross D, Trustrum N, et al. 2003. Recovery of topsoil characteristics after landslip erosion in dry hill country of New Zealand, and a test of the space-for-time hypothesis. Soil Biology & Biochemistry, 35: 1575–1586.
Article
Google Scholar
Stevenson F J. 1982. Humus Chemistry. New York: John Wiley & Sons.
Google Scholar
Su J, Zhao S S. 2005. Influence of vegetation restoration on distribution of aggregate and organic carbon and nitrogen in Loess Plateau. Research of Soil and Water Conservation, 12(3): 44–47.
Google Scholar
Su Y Z. 2006. Soil carbon and nitrogen sequestration following cropland to forage grassland conversion in marginal land in the middle of Heihe River Besin, Northwest China. Environmental Science, 27(7): 1312–1318.
Google Scholar
Wen Z M, Jiao F, Liu B Y, et al. 2005. Natural vegetation restoration and soil nutrient dynamic of abandoned farmlands in forest-steppe zone on Loess Plateau. Chinese Journal of Applied ecology, 16(11): 2025–2029. (in Chinese)
Google Scholar
Yan C S. 1988. Research Method of Soil Fertility. Beijing: China Agricultural Press, 124–128. (in Chinese)
Google Scholar
Zhang C, Liu G B, Xue S, et al. 2012. Rhizosphere soil microbial properties on abandoned croplands in the Loess Plateau, China during vegetation succession. European Journal of Soil Biology, 50: 127–136.
Article
Google Scholar
Zhuo S N, Wen Q X. 1994. The alcohol fractional precipitation classification of humic acid. Acta Pedologica Sinica, 31(3): 124–128. (in Chinese)
Google Scholar
Zimmermann M, Leifeld J, Fuhrer J. 2007. Quantifying soil organic fractions by infrared-spectroscopy. Soil Biology & Biochemistry, 39: 224–231.
Article
Google Scholar
Zou H Y, Guan X Q, Zhang X, et al. 1997. The discussion of the management of grassland natural conservation area in Yunwu Mountain. Prataculture Science, 14(1): 3–4. (in Chinese)
Google Scholar