Results 11 to 20 of about 399 (113)
Shuitu Baochi Xuebao, 2021 为了系统性研究灌木植物根系的固土力学效应，探讨土体对根系的摩阻特性，以4种不同土壤粒径（原级配，1.0~2.0，0.5~1.0，
郭欢 +4 more
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Influence of mining-induced ground fissures on soil infiltration characteristics and its erosion effect in coal mining area of northern Shaanxi in the middle reaches of the Yellow River [PDF]
Cracking the soil and water loss effects of mining-induced surface fissures in the coal mining area of the middle reaches of the Yellow River is of great significance for ecological environment protection and high-quality development in the coal mining ...
Baodeng CHEN +6 more
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Plant nutrient‐acquisition strategies contribute to species replacement during primary succession
Journal of Ecology, Volume 113, Issue 4, Page 988-1003, April 2025.Pioneer species Hippophae acquires phosphorus and nitrogen mainly by ‘mining’ and N2‐fixing strategies and thus dominates in the beginning of primary succession. As soil nutrient availability increases with the mobilization of apatite‐P and input of N‐rich plant residues, Hippophae' strategies become less efficient than Populus's scavenging strategies.
Xiao‐Long Li +12 more
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Shuitu Baochi Xuebao, 2023 为研究自然边坡其强度特性随含水率的变化规律。通过设计不同体积含水率(20%,27%,35%,40%,45%)和2种含根量(RAR=0.1%,0.3%)的重塑土进行不固结不排水三轴试验,以研究含水率对土体破坏方式、抗剪强度和初始切线模量的影响。结果表明:(1)试样破坏模式多为剪切变形和剪胀变形,在含水率为20%,27%时,出现明显剪切贯穿面破裂带,其余含水率下表现为剪胀变形;(2)含水率对根土复合体抗剪强度主要体现在黏聚力上,含水率从20%升至45%时,2种含根量的根土复合体黏聚力分别降低67%,72 ...
骆丕昭 +5 more
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“We are adapting to it because it is within us”: The co‐becoming of COVID‐19 in Malawi
World Medical &Health Policy, Volume 16, Issue 3, Page 295-315, September 2024.Abstract Using a case study design, this research explores the Coronavirus 2019 disease (COVID‐19) pandemic from the perspectives and worldviews of Malawians (Black/African knowledge) through the Bawaka Yolŋu ontology of co‐becoming (Black/Indigenous knowledge).
Chúk Odenigbo +3 more
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Analysis of Soil Erosion Intensity Change Trajectories and Their Driving Factors in Yunnan Province Based on An Improved Stability Mapping Method [PDF]
[Objective] To elucidate the change trajectories of soil erosion intensity in Yunnan Province from 1990 to 2022, and analyze the types of changes and their driving factors, in order to provide a scientific foundation for effective soil erosion control ...
HUANG Bangmei +4 more
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Influence of sowing amount and substrate thickness on the quality of sandy ecological grass blankets [PDF]
[Objective] Under the condition of ensuring the quality of the grass blanket, the study aims to select the appropriate combination of substrate thickness and seeding rate, and achieve the coordination and unity of ecological and economic effects in ...
FENG Zhidao +4 more
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Numerical simulation of plant root system stress response to coal mining disturbances in semiarid mining areas [PDF]
Root damage is a critical ecological issue affecting vegetation in semi-arid underground coal mining areas. The mechanisms and influencing factors of root stress damage induced by stress changes in the root-soil layer due to mining-induced rock mass ...
Chuangang GONG +8 more
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Shuitu Baochi Xuebao, 2008 植物的固土抗蚀作用大小与其根系密切相关,而根系特征决定了根的固土抗蚀作用的发挥,本文以相同基质下构树和顶坛花椒不同特征的根系为研究对象.通过研究根系特征与土壤抗冲性、抗蚀性、抗拉性、紧实度的关系,结果表明,苗期根系能强化土壤抗冲性,构树苗、顶坛花椒苗根系强化值大小分别为78.01>77.71;根系可提高土壤抗蚀性,其抗蚀性强弱为.构树苗>顶坛花椒苗>对照,构树、顶坛花椒、对照试验的土壤水稳性指数分别为4.36,3.16,1.67;不同树种根系对土壤的固结能力不同,构树苗生长下的土壤抗拉能力为214.92
付兴涛 +3 more
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Shuitu Baochi Xuebao, 2007 用全挖取样法研究了干旱荒漠区不同类型沙地上沙蒿种群的根系生态特征。结果表明,沙蒿根系总生物量在不同类型沙地上有所变化,其排序为流动沙地（122.43 g）〉封育沙地（106.35g）〉半固定沙地（90.15 g）;从根系分布深度看,在不同类型沙地上,沙蒿根系生物量集中分布在0-40cm土层中,占75%以上;沙蒿的主根生物量在0-20cm土层中最多,其根系生物量占全部根系生物量的比例在封育沙地为67.11%,流动沙地为53.52%,半固定沙地为62.48%;侧根生物量在封育沙地和半固定沙地中在0 ...
王辉 +4 more
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