Results 11 to 20 of about 8,234 (208)
Shuitu Baochi Xuebao, 2011 研究露地蔬菜覆膜垄沟种植体系中2种不同的种植方式(膜上、膜侧)对滇池面山台梯地农田表层土壤结构稳定性及农田产流的影响。结果表明:与膜上种植方式比较,膜侧种植方式对种植行0-5cm土层的容重、孔隙分布及>0.25mm水稳性团聚体含量均无明显影响。在5-10cm土层,虽然膜侧种植方式下的总孔隙度及>60μm孔隙度显著低于膜上种植方式的,但是2种种植方式下5-10cm土层>0.25mm水稳性团聚体含量间的差异不显著。这表明膜侧种植方式不会明显降低表层土壤的结构稳定性。与膜上种植方式比较 ...
张小溪, 张国盛, 胡学柏
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Shuitu Baochi Xuebao, 2016 为了解高原湖泊流域内农田种植方式及沟渠类型对雨季径流中固体悬浮物及氮磷浓度变化的影响，在柴河流域不同农田种植方式（蔬菜地、玉米地、大棚种植区）的区域内选择典型自然沟渠及土质沟渠进行自然降雨过程中径流氮、磷含量分析。结果表明：（1）该区域农田径流水体总氮、总磷平均值为27.16，17.18 mg/L，相对地表V类水质限值而言超标严重，溶解态氮与颗粒态磷是氮、磷的主要存在形态，符合面源污染特征；（2）降雨是影响径流污染物含量最重要的因素之一。除此之外，种植方式对总氮（TN）、溶解态氮（DN）及溶解态磷（DP）
吴晓妮, 付登高, 闫
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Analysis on the Effects of Wheat Planting Status and Quality Evaluation on High Quality Product Rate Improvement in Shandong Province [PDF]
, 2021 In order to evaluate the high quality product rate of wheat in Shandong Province, and guide practice of grain circulation in production and consumption, the survey collected the wheat planting status and quality evaluation data in Shandong Province from ...
LI Zhen-hua +5 more
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Effects of Configuration Ratios for Contour Planting and Replanted Sugarcane on Gully Erosion-Induced Nitrogen and Phosphorus Losses on Slopes [PDF]
, 2023 [Objective] The suitable configuration ratios for contour planting and replanted sugarcane on slopes were determined in order to provide technical support for reducing slope ditch erosion and nutrient loss, improving cultivated land quality and rational ...
Chen Tingting +8 more
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Journal of Ethnobiology and Ethnomedicine, 2020 摘要 背景:由于凉山彝族自治州(中国四川省)地形崎岖、交通不便, 文化制约、历史上民风彪悍, 很少有学者对凉山地区进行深入的民族植物学调查。凉山彝族采集食用多种野生食用植物(WEPS), 但其相关的民族植物学知识鲜为人知, 国外对此更是无从知晓。本研究的目的是:(1)对凉山彝族所食用的野生植物进行系统的研究; (2)记录这些植物的传统知识; (3)分析其特殊的制备方法和消费习惯; (4)识别对凉山彝族有重要文化意义的物种。 方法:在2016-2017年间 ...
Jing Wang +4 more
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Factors Influencing Spatial and Temporal Characteristics of Organic Carbon Loading to Rivers From Sediment in Small Watersheds in Sugarcane Areas [PDF]
, 2023 [Objective] The spatial and temporal characteristics and influencing factors of soil organic carbon loss from sugarcane in a typical small watershed in the red soil area of Guangxi Zhuang Autonomous Region were determined, and the spatial and temporal ...
Chen Tingting +8 more
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Wild ornamental plant resources in Xinchang, Zhejiang(浙江新昌县野生观赏植物资源研究)
Zhejiang Daxue xuebao. Lixue ban, 2005 对浙江新昌县野生观赏植物资源进行了研究.结果表明，新昌有野生观赏植物143科408属783种，其中乔木197种、灌木218种、藤本108种、草本260种.根据本县野生观赏植物的保护现状，探讨了野生观赏植物的可持续利用方式.
JINMing-long(金明龙) +1 more
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Zhejiang Daxue xuebao. Lixue ban, 2011 以‘龙圆栗香’为试材，采用地爬式和架式两种种植方式，利用单干、双干和三干3种整枝方式，研究不同栽培方式对笋瓜果实中果胶、戊糖和铬(Cr3+)3种主要品质指标质量比的影响.结果表明：两种种植方式下三干整枝方式均不利于果实中果胶和戊糖的积累，地爬式栽培比架式栽培有利于果实中铬(Cr3+)的积累；地爬式栽培双干整枝处理下果实内果胶质量比最高.可采用架式单干整枝处理方式来提高单位面积笋瓜果实中果胶、铬(Cr3+)和戊糖的产量.
JIANGXin-mei(蒋欣梅) +4 more
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Zhejiang Daxue xuebao. Lixue ban, 2006 在对乐清湾和杭州湾滩涂湿地的植被、植物种类及围垦时间进行生态调查的基础上，分析了围垦后植物多样性的变化及引起变化的原因.结果显示：(1)建塘时间对植物种类有明显的影响，物种数随着建塘时间的推移而增加；当建塘时间超过30年，其土壤已基本接近中性，群落中的植物种类明显增加.(2)离海塘的距离对物种多样性有着及其重要的影响，一般来说，随着离海塘距离的增加，物种多样性明显增加.(3)土地利用方式对植物种类有明显影响，不同的利用方式，植物种类明显不同.(4)互花米草Spartina ...
SHENJia-hong(慎佳泓) +5 more
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Effects of Different Micro Rainwater Harvesting Measures on Safflower Growth [PDF]
, 2023 [Objective] The cultivation of safflower with micro rainwater harvesting technology on the hillslopes of the temperate desert grassland in Yili Valley was evaluated in order to provide technical support for dryland cultivation of safflower and for ...
Hu Guiqing +3 more
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