Long-Term Effects of Inorganic and Organic Amendments on Organic Carbon in a Paddy Soil of the Taihu Lake Region, China
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Sources and sequestration rate of organic carbon in sediments of the bare tidal flat ecosystems: A model approach
2023, Marine Environmental ResearchThe high accumulation of phosphorus in high-yield paddy soils: A new insight from cutans
2023, GeodermaCitation Excerpt :Meanwhile, the fields in this region usually show abundant cutans in the plow layer, and have high yields of rice (Liu and Diamond, 2005; Ju et al., 2009). The soil around Taihu is clay loam, with the dominating clay minerals of hydromica and smectite (Ma et al., 2011). Meanwhile, it was proposed that the paddy soils with abundant cutans usually had high yields of rice, also with low risk of P-deficiency (Shen et al., 2007).
Quantifying and optimizing agroecosystem services in China's Taihu Lake Basin
2021, Journal of Environmental ManagementCitation Excerpt :All counties and districts except Jiashan and Lin'an had a positive cumulative annual SOC, the increase ranging from 0.001 to 0.05 g/kg across nearly two-thirds of all counties (Fig. 8b). Straw return therefore significantly enhanced net five-year difference in SOC accumulation, consistent with the literature (Ma et al., 2011; Li et al., 2019). Three quarters of counties and districts in the Basin exhibited a downward trend, decreasing by 19.7 kg/ha on average (Fig. 8c).
The stability mechanism for organic carbon of aggregate fractions in the irrigated desert soil based on the long-term fertilizer experiment of China
2019, CatenaCitation Excerpt :In addition, the average OC concentrations of stably and tightly bound humus in 0.25–2 mm WSA fractions were significantly higher than those in other size WSA fractions, respectively (P < 0.05). In the different size WSA fractions, the average OC concentration of tightly bound humus was significantly higher than those of the loosely and stably bound humus, showing that the input of organic manures mainly sequestrated in the tightly bound humus, as reported by Wang et al. (2008) and Ma et al. (2011). Both indicated that tightly bound humus was the most stable of all bound humus fractions and accounted for roughly over 50% of the total bound humus fractions in the Ultisols and deposits of loess soils.
Supported by the National Key Basic Research and Development Program of China (No. 2005CB121108) and the Key Project of National Natural Science Foundation of China (No. 40335047).