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
Dynamics of nutrient and energy for fine roots of Casuarina equisetifolia plantations on coastal sandy soil [PDF]
, 2007 2005年1月到2005年11月对福建省惠安县赤湖林场不同林龄木麻黄人工林细根养分和能量的季节动态进行了观测,结果表明:(1)6种元素的含量在不同林龄木麻黄细根中都具有明显的季节变化。各林龄细根的N含量一般在冬夏季节较高,且死细根的N浓度高于相同林龄的活细根,除12林龄活细根P浓度在7月份有最大值外,其他各林龄活、死细根在一年中呈波动性下降,K含量在冬季较高,而在其他季节变化幅度不大,除5林龄活细根和18林龄死细根在3月份和7月份有两个峰值外,其他林龄细根Ca含量随季节变化较小 ...
侯杰 +5 more
core
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
Shuitu Baochi Xuebao, 2020 为了解不同林龄柳杉人工林枯落物的水源涵养能力，为森林水土保持措施的确定和实施提供依据，于2018年10月选取平坝区大坡林场5个龄组柳杉人工林作为研究对象，采用烘干法和实验室浸水法对枯落物的持水性能进行研究，并采用熵权法对柳杉人工林5个龄组枯落物水源涵养能力进行综合评价。结果表明：（1）随着柳杉人工林的生长发育，枯落物储量及持水特性呈现先增加后减小的趋势，表现出成熟林最大，幼龄林最小。其中成熟林枯落物厚度为7.40 cm，蓄积量为2.21 t/hm2，最大持水量为6.46 t/hm2，最大持水率为265 ...
杨家慧, 谭伟, 卯光宪, 冯艳
doaj
[Xanthoceras sorbifolium Bunge flower extract inhibits benign prostatic hyperplasia in rats]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2022 Wang W +8 more
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
[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
[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
Distribution Characteristics and Coupling Relationship Between Soil Erosion and Hydrologic and Sediment Connectivity in Changchong River Basin [PDF]
[Objective] To clarify the distribution characteristics and coupling relationship between soil erosion and hydrologic and sediment connectivity in Changchong River Basin, and to provide basis for soil erosion control and soil erosion prevention in this ...
LI Jianing +4 more
core +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