Results 21 to 30 of about 9,570 (165)
MMC celebrating 6 years of experience and expansion 庆祝MMC六年的经验和壮大
, 2022 Journal of Diabetes, Volume 14, Issue 5, Page 356-357, May 2022.
Itamar Raz
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Research Progress in Oxidation Stability of Antarctic Krill (Euphausia superba) Oil and Review of Methods for Its Control [PDF]
, 2023 Antarctic krill oil is rich in phospholipid eicosapentaenoic acid and docosahexaenoic acid with high bioavailability. It is a high-quality source of ω-3 fatty acids and is a potential substitute for fish oil.
LIN Liu, CAO Zhenhai, TAO Ningping, MIAO Junjian, WANG Xichang
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Review and development of surrounding rock control technology for gob-side entry retaining in China [PDF]
, 2023 The research and application of gob-side entry retaining (GER) technology in Chinese coal mines has been over 60 years. Two major technical types including GER with filling and GER with roof cutting were developed.
Honglin LIU +7 more
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Shuitu Baochi Xuebao, 2021 南方花岗岩普遍存在红壤颗粒粗、物理特性差、保水保肥能力弱、水土流失严重等问题。为了探讨施用保水剂对花岗岩红壤坡面防治水土流失的作用，通过模拟降雨试验和室内分析试验，研究层施（K1）、沟施（K2）、混施（K3）保水剂和不施保水剂（CT）条件下坡面的侵蚀过程。结果表明：3种保水剂施用方式下，花岗岩红壤坡面初始产流时间较对照坡面延长1.09~1.61倍。坡面入渗率、含水量分别表现为K2>K3>K1>CT和K3>K1>K2>CT；在不同处理方式下，坡面减流率表现为K3>K2>K1，减沙率表现为K2>K3>K1 ...
陈诗婷 +4 more
doaj
Shuitu Baochi Xuebao, 2005 以丙烯酸、丙烯酰胺和凹凸棒土为原料，合成了有机无机复合保水剂(PAAM—atta)．与丙烯酸和丙烯酰胺聚合保水剂(PAAM)作对比，在室外考察了复合保水剂与纯有机保水剂对土壤物理性质的影响。结果表明．在土壤含水量、pH值、电导率、团粒结构、土壤容重和土壤孔隙度等土壤物理化学性能方面，PAAM—atta复合保水剂的改善效果较纯有机类保水剂明显。
杨红善 刘瑞凤 张俊平 王爱勤
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Research on soil improvement and engineering application under mixed application of environmental materials in alpine mining areas [PDF]
To address the issues of inadequate topsoil structure, soil erosion, and low soil fertility in the reclamation of alpine mining areas. Taking Qinghai West Copper Mine as an example, this study investigates the impact of three materials—sheep manure(A ...
Jie REN +4 more
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Shuitu Baochi Xuebao, 2005 保水剂凝胶是一种保证有效使用保水剂的重要措施。在黄土高原半干旱地区最干旱的春季,通过对比试验分析了在沙棘、杏树、梨树等幼树林中不同保水剂凝胶使用方法与使用量对土壤水分及杏树、梨树前期坐果率的影响,表明使用方法与使用量对土壤水分的维持和对果树生长有显著的影响。在试验的保水剂用量范围内(4 5～15 75kg)使用保水剂凝胶后土壤水分明显提高,提高幅度为5 %～4 8%。棒状保水剂凝胶在埋入土壤2 0天后,贮存的水分可在2 5 30cm半径范围内使得土壤水分比对照提高5 %～4 6 % ,在2 ...
王百田 马丰斌 张府娥 史常青 侯青海
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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
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保水保肥材料对废弃离子型稀土矿区尾砂土壤理化性质及皇竹草生长的影响
Shuitu Baochi Xuebao, 2023 针对废弃稀土矿区氨氮减低后的土壤结构性差、肥力低下和种植植物生产力低的问题,土壤改良成为快速提升植被恢复的关键。通过田间试验,比较单施不同浓度保水剂(S1、S2、S3)和保水保肥材料(F1、F2、F3)对土壤理化性质、皇竹草生长以及作物耗水和水分利用效率(WUE)等相关指标影响,并运用主成分分析和模糊隶属度函数方法筛选出最佳改良材料。结果表明:(1)保水保肥材料通过改善废弃稀土矿区尾砂土土壤理化性质,促进皇竹草生长,土壤理化性质与植物生长的关系表现为土壤pH和养分含量越高,皇竹草分蘖数、氮磷含量 ...
贺燕子 +4 more
doaj
The Resistance Research and Application of Typical Plants for Island Vegetation Restoration [PDF]
, 2016 植被是海岛生态系统的重要组成部分，海岛植被修复对加快恢复受损的海岛生态环境，改善海岛居民的生活生产条件起关键作用。目前，我国大部分海岛生态破坏比较严重，而海岛植被修复工作起步较晚，海岛植被修复技术还不完善，对环境恶劣海岛植被修复依然缺乏良策。本文依托平潭海岛景观生境修复技术研究与示范项目，以木麻黄（Casuarinaequisetifolia）、夹竹桃（Neriumindicum）和台湾相思（Acaciaconfusa）为实验材料，室内人为控制干旱胁迫、根系盐胁迫和叶片盐胁迫的程度及时间 ...
陈慧英
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