Marginal lands for bioenergy in China; an outlook in status, potential and management

Abstract

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Exploring negative emission potential of biochar to achieve carbon neutrality goal in China

“…Consequently, the ensuing area for energy crop cultivation is ~50.5 Mhm 2 , yielding 0.66 Gt yr −1 . These figures align with existing estimates, which range from 3–185 Mhm 2 42 – 44 for area and 0.01 to over 1 Gt yr −1 44 – 47 for production. Finally, under the ‘Current Technical Potential’ scenario, the available biomass feedstocks amount to 0.81 Gt yr −1 , comprised of 0.73 Gt yr −1 from agricultural biomass and 0.08 Gt yr −1 from forestry residues.…”

Towards identifying industrial crop types and associated agronomies to improve biomass production from marginal lands in Europe

“…The idea to use industrial crops on marginal and contaminated lands is basically a response to growing concerns about possible food shortages due to land use changes, in combination with the fact that industrial crops are less demanding and more tolerant to adverse climatic and edaphic conditions (Dauber et al, 2012; Gelfand et al, 2013; Gerwin et al, 2018; Qaseem & Wu, 2021). Moreover, these crops in marginal and contaminated lands also offer ecological advantages, such as restoration of soil and water properties and improvement of the biological and landscape diversity (Fernando et al, 2018; Gomes et al, 2022).…”

Evaluation of Marginal Land Potential and Analysis of Environmental Variables of Jerusalem Artichoke in Shaanxi Province, China

“…On the other hand, energy plant growth necessitates substantial land resources (Xue et al, 2020), putting land for energy plants in direct or indirect competition with land for food crops (Leppäkoski et al, 2021;Jhariya et al, 2021a). One feasible approach is growing energy plants on marginal lands (Jiang et al, 2018;Mehmood et al, 2019), which not only helps to alleviate the energy crisis (Liu et al, 2015) but also reduces soil erosion and improves marginal soil quality without interfering with food production (Bogucka and Jankowski, 2020;Qaseem and Wu, 2020). Besides, the marginal land resources have huge development potential in China.…”

“…Ideal energy crops for marginal lands were occupied with a long growing season, well-developed canopy, and fewer reproductive structures (Jones et al, 2015). After 2007, the grains and green grain crops as raw materials for biomass energy were banned in China (Xue et al, 2016;Qaseem and Wu, 2021), so the non-food biomass feedstock is the first choice of bioenergy production in China (Qaseem and Wu, 2021). FAO experts have dubbed Jerusalem artichoke (Helianthus tuberosus L.) a "21st-century human livestock crop" because of its high tolerance to environmental challenges such as soil salinity, drought, and plant diseases (Long et al, 2016;Krivorotova and Sereikaite, 2018), making it ideal for marginal lands.…”