Biochar can improve the soil quality of new creation farmland on the Loess Plateau
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The Loess Plateau is the most severely degraded soil area worldwide and represents one of the lowest areas of soil productivity. To solve the conundrum between increasing populations and decreasing agricultural acreage, enhancing the quantity of cultivated land, gully land consolidation projects has been implemented. However, the new creation farmland soil is not enough to satisfy the demand of agricultural production. An incubation experiment was conducted to determine the effects of biochar on the new creation farmland soil. Five levels of amendments (0, 1%, 2%, 5%, and 10% (wt%) biochar soil) were used, and the soil columns remained in the laboratory for approximately 2 months. The results show that biochar proportion was a more important factor than incubation time across all soils tested. The soil moisture content and particle size clearly increased as the amendment level increased; however, the soil pH decreased gradually with incubation time and tended to slow soil salinization. These findings will have to be verified under field conditions.
KeywordsNew creation farmland Biochar Soil physical-chemical properties Loess Plateau
We appreciate the editors of the journal and the reviewers for their useful comments and suggestions and knowledge.
National Key Research and Development Project of China (NO:2017YFD0800500).
- Chen XX, He XS, Zhang W, Geng ZC (2014b) Effects of quantity of biochar on nitrogen leaching in simulated soil columns and soil moisture parameters in field. Agric Res Arid Areas 32(1):110–109Google Scholar
- Guo W, Chen H, Zhang Q (2011) Effects of biochar application on total nitrogen and alkali-hydrolyzable nitrogen content in the topsoil of the high-yield cropland in North China plain. Ecol Environ Sci 20(3):425–428Google Scholar
- Han GM, Lan JY, Chen WF (2014) Biochar and its influence on soil environment. J Anhui Agric Sci 31:10941–10943Google Scholar
- He CX (2015) The situation, characteristics and effect of the gully reclamation project in Yan’an. J Earth Environ 6:255–260Google Scholar
- Li JH, Lv GH, Bai WB, Guo JY, Song JQ, Zhang QZ (2010) Effect of modified biochar on soil nitrogen and available phosphorus leaching. Chin J Agrometeorol 33(2):220–225Google Scholar
- Li JZ, Zhang QZ, Lou YL (2015) Effects of biochar addition on nutrient leaching loss of typical tobacco-planting soils in Yunnan Province, China. J Agric Resour Environ 32(1):48–53Google Scholar
- Liu H (2014) Effect of biochar on nitrogen loss and greenhouse gas emission from vegetable soil. A dissertationsubmitted to the Zhejiang A&F University for the degree of MasterGoogle Scholar
- Liu XH, Zhang XC (2012) Effect of biochar on ph of alkaline soils in the loess plateau: results from incubation experiments. Int J Agric Biol 14(5):745–750Google Scholar
- Liu WJ, Liu Y, Gao XL, Yang W, Wang YH, Dai JY (2012) Effects of biomass charcoals on retention of ammonium nitrogen in soils. J Agro-Environment Sci 32(5):962–968Google Scholar
- Verheijen FGA, Jeffery S, Bastos AC, et al. (2010) Biochar application to soils - a critical scientific review of effects on soil properties, processes and functions. EUR 24099 EN. Office for the Official Publications of the European Communities, Luxembourg, p 149Google Scholar
- Wander M, Magdoff F, Ray RW (2004) Soil organic matter fractions and their relevance to soil function. Adv Agroecol 67–102. https://doi.org/10.1201/9780203496374.ch3
- Yuan J (2011) Progress of the research on the properties of biochars and their influence on soil environmental functions. Ecol Environ Sci 20(4):779–785Google Scholar
- Zhou ZH, Lee XQ, Xing Y et al (2011) Effect of biochar amendment on nitrogen leaching in soil. Earth Environ 39(2):278–284Google Scholar