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Other documentStudy on Chinese herders’ preference for grassland ecological compensation and its impact factors — Based on the survey of two counties in Qinghai Province
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.China's Grassland covers an area of 390 million hectares, accounting for more than 40% of the total land area. It is the largest terrestrial ecosystem in China. After the institutional reform of the State Council, the State Forestry and Grassland Administration (NFGA) became the department in charge of grassland and forest. NFGA began to explore the long-term mechanism for Grassland Ecological Compensation (GEC). Qinghai Province is the main pastoral region in China, and it is also the water source of Yangtze River, Yellow River and Lantsang River (Mekong River), where there are different herders with different Religious Belief and Minority. It is of great significance for the formulation of long-term GEC mechanism and the implementation of precise policies to study the local herders’ preference for GEC and its influencing factors. Based on 340 questionnaires from Qilian County and Menyuan County in Qinghai Province, this study selects three compensation methods, fund compensation (FC), policy compensation (PC) and substantial compensation (SC), as dependent variables, and takes demographic characteristics, family characteristics, grassland characteristics, policy cognition and other factors as independent variables. Disordered Multiple Logistic Regression Analysis was used in this study. The results show that 69.71% of respondents prefer FC, 20.29% prefer PC, and 10% prefer MC. The impact of some independent variable involved county, demographic characteristics, Family characteristics, grassland characteristics on herders’ preference for GEC means is significant. It is found that policy cognition has no significant to the preference. Therefore, the study believes that FC is still the main compensation method for a period of time, but it should be more diversified and detailed for different groups and their demands in the sustainable compensation mechanism and policy design. Keywords: Agriculture, Governance, Policies, Research ID: 3486732 -
Other documentManaging taxonomic and functional diversity is the key to sustain aboveground biomass and soil microbial diversity: A synthesis from long-term forest restoration of southern China
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Exploring the biodiversity-ecosystem functioning relationship is one of the central goals of ecological research. Restoration is essential for supporting key ecosystem functions such as aboveground biomass production and managing soil microbial diversity. However, the relative importance of functional versus taxonomic diversity in explaining aboveground biomass and soil microbial diversity during restoration is poorly understood. Here, we used a trait-based approach to test for the importance of multiple plant diversity attributes in regulating aboveground biomass and soil microbial diversity in four 30- years-old restored subtropical forests in southern China. High-throughput Illumina sequencing was applied for detecting fungal and bacterial diversity. We show that both taxonomic and functional diversities are significant and positive regulators of aboveground biomass; however, functional diversity (FD) was more important than taxonomic diversity (TD) in controlling aboveground biomass. FD had the strongest direct effect on aboveground biomass compared with TD, soil properties, and community weighted mean (CWM) traits. Our results further indicate that leaf and root morphological traits and traits related to the nutrient content in plant tissues showed acquisitive resource use strategy which influenced aboveground biomass. In contrast to aboveground biomass, taxonomic diversity explained more of the soil microbial diversity than the FD and soil properties. Prediction of fungal richness was better than that of bacterial richness. In addition, root traits explained more variation of soil microbes than the leaf traits. Our results suggest that both TD and FD play a role in shaping aboveground biomass and soil microbial diversity; but FD is more important in supporting aboveground biomass while TD for belowground microbial diversity. These results imply that enhancing TD and FD is important to restoring and managing degraded forest landscapes. Key words: Biodiversity-Ecosystem functions; soil microbial diversity, taxonomic diversity, functional diversity, forest restoration ID: 3486373 -
Other documentEffects of different management models on soil organic carbon of natural secondary forests of Quercus Mongolica in China
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.How to improve soil organic carbon content and stock has become the emerging scientific issues under the background of low soil fertility of natural secondary forests in Northeast China. In this study,, we will analyze the impacts of natural restoration management regime, target tree-based forest management regime, and conversion to mixed local valuable broadleaved forest management regime for secondary Quercus mongolica forest on soil organic carbon stocks in a forestry fram of Heilongjiang province. The result showed: (1) SOC content ranked as target tree-based forest management ＞ natural restoration management ＞ conversion to mixed local forest management, and TN,TP, AN, AP and water content were the key factors impacted the SOC content; (2) The different management have no impact on cfPOC and MOC, but the ffPOC content was significantly decreased under target tree-based forest management, while iPOC content was significantly increased under conversion to mixed local forest management; (3) The relative proportion of the functional groups were ranked as O-alkyl C > alkyl C > aromatic C > carbonyl C; (4) MBC was rankded as target tree-based forest management ＞ natural restoration management ＞ conversion to mixed local forest management, and the invertase activity and catalase activity were increased under target tree-based forest management, while urease activity was increased under conversion to mixed local forest management; (5) The carbon sequestration potential was ranked as conversion to mixed local forest management ＞ natural restoration management ＞ target tree-based forest management. In conclusion, these results indicated that the target tree-based forest management has the highest potential to sequestrated carbon in forest soil, and it is a rational management to increase SOC, while conversion to mixed local forest management lead to a loss of SOC and need to protect and repair in future to increase the SOC content. Keywords: Sustainable forest management, Deforestation and forest degradation, Deforestation and forest degradation; Adaptive and integrated management, Policies ID: 3486596
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