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#1Xing Wu (CAS: Chinese Academy of Sciences)H-Index: 14
#2Huan Xu (CAS: Chinese Academy of Sciences)
Last.Guohua Liu (CAS: Chinese Academy of Sciences)H-Index: 18
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Abstract Land use change and forest stand age are important factors in regulating soil respiration (Rs) in terrestrial ecosystems. However, the responses of Rs to these factors and the underlying mechanisms are not well understood, especially in fields converted from rice paddies (RPs) to upland cultivation. In this study, the characteristics of Rs and soil microbial community responses to land use changes from RPs to citrus orchards (ORs) with different stand ages (3, 10, 22, and 30 years) were...
#1Tinashe Mawodza (University of Sheffield)H-Index: 1
#2Genoveva Burca (RAL: Rutherford Appleton Laboratory)H-Index: 5
Last.Manoj Menon (University of Sheffield)H-Index: 15
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Abstract Non-invasive techniques are essential to deepen our understanding of root-soil interactions in situ. Neutron computed tomography (NCT) is an example of such techniques that have been successfully used to study these interactions in high resolution. Many of the studies using NCT however, have invariably focused on lupine plants and thus there is limited information available on other more commercially important staple crop plants such as wheat and rice. Also considering the high neutron ...
#1Alexandra Rodríguez (National Museum of Natural History)
#2Tommaso ChitiH-Index: 14
Last.Jorge Durán (UC: University of Coimbra)H-Index: 14
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Abstract Drought-induced forest die-off is occurring worldwide and is projected to increase in coming decades. However, if and to what extent this phenomenon affects the content of carbon (C) and nitrogen (N) in soils as well as its stability is far from clear. In a Mediterranean oak forest, we found that forest die-off negatively affected soil C and N contents, and positively affected C stability. We also found that the effect of forest die-off on soil C and N content was more pronounced at the...
#1Yongping Kou (CAS: Chinese Academy of Sciences)H-Index: 5
#2Kai Wei (CAS: Chinese Academy of Sciences)H-Index: 7
Last.Minjie Yao (Fujian Agriculture and Forestry University)
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Abstract The biogeographical distribution of methanotrophic communities and the mechanisms driving methanotrophic community assembly in grassland soils are largely unknown. In this study, the assembly mechanisms of methanotrophic communities and the niche preferences of specific methanotrophic taxa were investigated in three Chinese grassland regions, including the Inner Mongolian Plateau (IMP), the Xinjiang Autonomous Region (XAR) and the Tibetan Plateau (TP) across 1500, 1000 and 1000 km, resp...
#1Yuzhe Wang (Fujian Agriculture and Forestry University)
#2Junqiang Zheng (Henan University)
Last.Yalin Hu (Fujian Agriculture and Forestry University)
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Abstract Slash burning is a common and efficient way of removing forest harvest residues in subtropical plantations. However, few field studies have assessed the impact of fire-deposited charcoal on the diversity and composition of soil microbial communities. In this study, we manipulated the amount of charcoal left in plots after slash burning in a Pinus massoniana plantation of subtropical China. Soil samples were collected from 0 to 10 cm depth one year after charcoal application or removal. ...
#1Solomon Kamau (UoN: University of Nairobi)H-Index: 5
#2Edmundo Barrios (World Agroforestry Centre)H-Index: 25
Last.Johannes Lehmann (Cornell University)H-Index: 81
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Abstract Soil organic matter (SOM) is considered an important determinant of soil fertility in tropical agroecosystems. While numerous studies have shown the value of agroforestry in increasing soil nutrients and improving crop yield, few have addressed the systematic impacts of duration of cultivation on soil aggregation and C storage in such systems. A study was conducted in South Nandi (Kenya) to assess spatial influence of three dominant trees (Croton megalocarpus, Eucalyptus grandis and Zan...
#1Haifeng Zheng (Sichuan Agricultural University)
#2Yang Liu (Sichuan Agricultural University)H-Index: 5
Last.Qianmei Chen (Sichuan Agricultural University)
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Abstract The forest-alpine ecotone is considered susceptible to climate change. Addressing the effects of climate warming on the structure and function of the soil microbial community will provide insights into carbon (C) and nutrient cycling under climate change. A short-term open-top chamber (OTC) experiment was conducted in the alpine timberline of the eastern Tibetan Plateau to test the effects of experimental warming on the soil bacterial community composition, extracellular enzymes, ecoenz...
#1Xinyi Yang (CAU: China Agricultural University)
#2Guitong Li (CAU: China Agricultural University)H-Index: 10
Last.Qimei Lin (CAU: China Agricultural University)H-Index: 12
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Abstract The transformation processes and fate of nitrogen (N) in organic fertilizer are particularly important for N supply to crop in agricultural soils. However, the dynamic of the N release process of granular organic fertilizer to soil is not as clear as that of the powdery form. In this study, granular (G) and powdery (P) forms of a manure compost, which were well mixed with maize straw powders (MS) in 5% or 15%, respectively, were applied to soil and incubated for 105 days. The difference...
#1Diane Saint-Laurent (Université du Québec à Trois-Rivières)H-Index: 12
#2Lisane Arsenault-Boucher (Université du Québec à Trois-Rivières)H-Index: 1
Abstract This study deals with the decomposition rates of two types of commercial teas (green and rooibos) using the protocol proposed by Keuskamp et al. (2013). The tea bag samples were distributed at 60 sites along two major rivers (Coaticook and Massawippi) in south-central Quebec (Canada). The sampling sites were distributed in keeping with two separate zones: flood zones (FZ) (interval recurrence of 0–20 years) and no-flood zones (NFZ). Several soil and environmental parameters were include...
#1Zhi Wang (NAU: Nanjing Agricultural University)
#2Zhen Wang (NAU: Nanjing Agricultural University)
Last.Zhiguo Zhou (NAU: Nanjing Agricultural University)H-Index: 15
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Abstract Biochar amendments can modify fertilizer nitrogen (N) availability in soil and crop N uptake. However, how biochar addition affects crop N uptake and fertilizer N recovery under various N levels is not yet well understood. To address this question, we conducted a two-season [cotton (Gossypium hirsutum L.)-barley (Hordeum vulgare L.) rotation] pot experiment that included four N fertilizer rates (0, 75, 150, and 300 kg N ha−1, supplied as urea-15N) combined with two straw-biochar rates (...
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