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Evolution mechanism and treatment timing of penetrating fissures

Journal of Mountain Science 2024年第10期21卷 3453-3473页

作者： ZHANG Yanjun YAN Yueguan ZHU Yuanhao DAI Huayang College of Geoscience and Surveying Engineering China University of Mining and Technology-BeijingBeijing 100083China

The Inner Mongolia mining area in western China are characterized by the development of numerous penetrating fissures,resulting in severe land *** is significant to reveal the underlying evolution mechanism and identify treatment timing for restoring the ecological *** Guanbanwusu mining subsidence area in Inner Mongolia,China was selected as the research case for this *** evolution mechanism of different penetrating fissures was revealed by field measurement,physical simulation and theoretical *** treatment timing prediction model for the mining subsidence area was established based on the enhanced Weibull time *** results show that the ground fissures are mainly step-type and collapse-type *** breaking form of overlying strata determines their vertical opening and horizontal *** high mining intensity in the western mining area results in a shortened period of dynamic fissure expansion and reduced closure *** damage extent of the overlying strata exhibits zoning characteristics both vertically and *** relative standard deviation of the prediction model is only 3.7%.Concurrently,the prediction model is employed to determine the optimal timing for treatment in the study area,estimated to be 259 ***,once this threshold is reached,the study area undergoes treatment and restoration of its e cological *** study addresses the knowledge gap in this field by highlighting the interconnectedness between rock strata structure and evolution mechanism of penetrating fissures,thereby providing a method for determining the treatment timing in mining subsidence areas.

关键词： Mining subsidence Ecological restoration Fissures Evolution mechanism Prediction model treatment timing

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A global synthesis of the effectiveness and ecological impacts of management interventions for Spartina species

引用

Frontiers of Environmental Science & Engineering 2023年第11期17卷 263-272页

作者： Shengyu Wang Philip A.Martin Yan Hao William J.Sutherland Gorm E.Shackelford Jihua Wu Ruiting Ju Wenneng Zhou Bo Li Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering National Observations and Research Station of Wetland Ecosystems of the Yangtze EstuaryInstitute of Biodiversity Science and Institute of Eco-ChongmingSchool of Life SciencesFudan UniversityShanghai 200438China Biosecurity Research Initiative at St Catharine’s(BioRISC) St Catharine’s CollegeUniversity of CambridgeCambridgeCB21RLUK Conservation Science Group Department of ZoologyUniversity of CambridgeCambridgeCB23QZUK State Key Laboratory of Grassland Agro-Ecosystems and College of Ecology Lanzhou UniversityLanzhou 730000China Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds School of EcologyEnvironment and ResourcesGuangdong University of TechnologyGuangzhou 510006China Ministry of Education Key Laboratory for Transboundary Ecosecurity of Southwest China Yunnan Key Laboratory of Plant Reproductive AdaptationEvolutionary Ecology and Centre for Invasion BiologyInstitute of BiodiversitySchool of Ecology and Environmental ScienceYunnan UniversityKunming 650504China

Invasions by Spartina species pose serious threats to global coastal *** many studies have examined the effectiveness and ecological impacts of invasive Spartina management,no comprehensive global synthesis has been conducted to assess the effects of management on Spartina per se and on wider ***,we conducted a global meta-analysis of 3,459 observations from 102 studies to quantify the effects of different management interventions(physical,chemical,biological,and integrated control)on Spartina per se and native biodiversity and *** found that physical measures quickly suppressed Spartina but that their effectiveness declined over *** contrast,chemical measures decreased the abundance and growth of Spartina to a lesser degree in the early stage,but the effectiveness increased over *** management measures did not significantly decrease the diversity of native biota on the whole,but native-plant diversity significantly decreased with time after physical *** management measures did not affect abiotic factors *** results support the use of chemical measures to control invasive Spartina,although their effectiveness would depend on the time since the management *** the problem of Spartina regrowth following physical control requires improved *** hold that initial states of invaders and subsequent environmental changes after management interventions should be weighed in evaluating control efficacy.

关键词： Plant invasion Biodiversity Meta-analysis Restoration Salt marshes treatment timing

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