, 2008 以不同发育阶段的木麻黄人工林为研究对象,对乔木层不同器官和凋落物层、土壤层样品含碳率和碳贮量进行了分析。结果表明:不同发育阶段木麻黄不同器官碳密度表现为:中龄林最大、成熟林次之、幼龄林最小,凋落物层含碳率表现出与乔木层平均含碳率相似的规律:土壤含碳率随土壤深度的增加而降低,且成熟林>中龄林>幼龄林。木麻黄人工林年净固碳量差异主要体现在乔木层,凋落物年固碳量亦存在显著差别,但比重小于乔木层。国家“十一五”科技支撑计划项目(2006BAD03A14-01);; 福建省重大科技专项(2006NZ0001 ...
卢昌义 +4 more
core
Shuitu Baochi Xuebao, 2019 为了研究大伙房水库流域森林生态系统枯落物层和土壤层水文效应，以流域内3种不同植被类型为研究对象，采用浸泡法、环刀法对其枯落物层和土壤层水文功能进行定量研究。结果表明：（1）3种植被类型枯落物蓄积量为23.20~39.11 t/hm2，表现为刺槐天然次生林 > 油松人工林 > 落叶松人工林，且阔叶林枯落物半分解层蓄积量大于未分解层，而针叶林则相反。（2）枯落物层最大持水量为50.24~109.19 t/hm2，有效拦蓄量为41.70~90.71 t/hm2，均表现为刺槐天然次生林 > 油松人工林 ...
涂志华 +8 more
doaj
[Isodopharicin C inhibits NLRP3 inflammasome activation and alleviates septic shock in mice]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2023 Cao H, Zhang W, Li M, Yang Y, Li Y.
europepmc +1 more source
Characteristics of Soil Saturated Hydraulic Conductivity and Its Influencing Factors at Different Landscape Positions in a Small Peak-Cluster Depression Watershed of the Karst Region [PDF]
[Objective] Peak-cluster depression is one of the important karst landform types. Exploring the influence of different landscape positions on soil saturated hydraulic conductivity (Ks) can provide a reference for further understanding of the hydrological
HOU Senzheng +5 more
core +1 more source
Shuitu Baochi Xuebao, 2018 为揭示贵州百里杜鹃自然保护区人工抚育及旅游管理对杜鹃林水土保持功能的影响，选择轻度、中度、重度干扰强度的杜鹃林枯落物层作为研究对象，采用室内浸泡法对不同干扰强度的杜鹃林枯落物层水文功能进行研究。结果表明：（1）杜鹃林枯落物储量随干扰强度增加呈降低趋势，随分解程度增加呈极显著升高趋势；自然含水率随干扰强度增加呈降低趋势，随分解程度增加总体呈升高趋势。（2）杜鹃林枯落物最大持水量随干扰强度增加呈降低趋势，随分解程度增加呈极显著升高趋势。枯落物最大拦蓄量、最大拦蓄率 ...
张建利 +5 more
doaj
[Prospective study on application of mind mapping combined with scenario simulation training on the ability training of junior nurses in hospital transfer of patients with critical burns and trauma]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2023 Li N +5 more
europepmc +1 more source
[Analysis of the Development Mechanism of Cytokine Storm in Severe Burn Patients Complicated with Infection]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue Ban, 2021 Tang YY, Lou GX, He WF.
europepmc +1 more source
Evaluation of the Effectiveness of Soil Improvement Measures in Apple Orchards on the Loess Plateau: A Meta-Analysis [PDF]
[Objective] Soil acidification, structure and fertility degradation and poor water-holding capacities are common problems in the apple orchard on the Loess Plateau, effective soil improvement techniques are crucial for enhancing soil quality, and ...
DUAN Shunxia +3 more
core +1 more source
[Effects of collagen type ⅩⅦ α1 on epidermal stem cells in aging skin and the microRNA intervention mechanism]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2022 Sun JC +5 more
europepmc +1 more source
[Clinical characteristics and analysis of risk factors for heart injuries in 55 patients with lightning injury on plateau in Tibet Autonomous Region]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2023 Yang SS, Zhao YY, Luo ZJ, He C, Li YH.
europepmc +1 more source