Effects of Desulfurized Gypsum Applied Combined with Polyglutamic Acid on Improving Saline Soil [PDF]
, 2023 [Objective] The effects of desulfurized gypsum and polyglutamic acid (γ-PGA) improves saline soil were studied in order to provide a theoretical and technical basis for improving saline soil in Northwest China.
Li Hongyi +4 more
core +1 more source
Effect of Soil Conditioner Interface Modification on Migration Characteristics of Saline-Alkali Ions in Irrigation Area of Yellow River [PDF]
, 2023 [Objective] Through the treatment of hydrophilic and hydrophobic by the conditioner, the influence of different interface characteristics of the conditioner on the soil water and salt transport law was explored, and the improvement mechanism of fly ash ...
Chen Xiangyu +5 more
core +1 more source
Geochemical Characteristics and Environmental Risk Assessment of Heavy Metals in Weathering Profiles of Alkali-enriched Porphyry in Central Yunnan [PDF]
, 2023 BACKGROUNDThe contents of many heavy metals in soil in many areas of southwest China are much higher than the national soil background value, and related studies show that most heavy metals in soil are in a state of “high background and low activity ...
Fangping WEN +10 more
core +1 more source
Characteristics of a Typical Tamarix Hohenackeri Shrub Resource Island in Qaidam Basin Under Prevailing Wind [PDF]
, 2022 [Objective] The characteristics of a typical Tamarix hohenackeri shrub resource island in Nuomuhong area of Qaidan Basin under the action of prevailing winds were studied in order to deeply understand the ecological significance of tamarisk shrubs in ...
Cao Guangchao +7 more
core +1 more source
模拟酸雨条件下生物炭配施沸石对江西某钨矿区Pb、Cd、W的淋溶效应
Shuitu Baochi Xuebao, 2021 为解决江西某钨矿区钨及其他重金属污染问题，通过室内模拟酸雨淋溶试验，研究在不同pH （3.1，4.5，5.8）酸雨条件下，添加稻壳生物炭（BC）、天然沸石（ZE）、稻壳生物炭—天然沸石（CO）改良剂对土壤Pb、Cd、W的固定效果。结果表明，酸雨增加了重金属的溶出风险，pH越低，风险越大。添加BC、ZE、CO有效提高土壤的酸缓冲能力，平均分别使得淋溶液pH增加0.53，0.23，0.58个单位，使得淋溶后土壤pH增加0.27，0.09，0.17个单位。在pH=4.5和pH=5.8模拟酸雨后 ...
廖月清 +6 more
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Effects of Continuous Straw Returning Combined with Reduced Fertilizer Application on Rice Yield and Loss of Nitrogen and Phosphorus [PDF]
, 2022 [Objective] The effects of straw returning combined with reduced chemical fertilizer application on rice yield and nitrogen and phosphorus losses with runoff were studied in order to provide a scientific basis for the recycling and reuse of local ...
Liang Fan +8 more
core +1 more source
Shuitu Baochi Xuebao, 2020 对秸秆进行预处理可以加快秸秆的腐解，为了探讨秸秆经过不同预处理后还田对土壤养分淋溶及COD淋出量的影响，利用白腐真菌、大球盖菇、尿素分别对秸秆进行预处理，通过室内人工土柱模拟试验方法，对秸秆配施有机肥还田后土壤中氮磷及COD淋出量进行分析。运用（SEM）扫描电镜、（FTIR）傅里叶红外光谱、（XRD）X射线多晶衍射对预处理前后秸秆结构及成分进行分析，并通过比较不同预处理秸秆与有机肥配施淋溶过程中总氮、硝态氮、铵态氮、总磷、溶磷、COD的变化来确定秸秆还田前最佳的预处理方式。结果表明 ...
白云 +5 more
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Effects of Different Crust Types on Soil Aggregates and Organic Carbon of Vegetated Concrete Substrates [PDF]
, 2023 [Objective] The distribution of soil aggregates and the characteristics of organic carbon content were analyzed to determine the influence of biological crust on slope stability and nutrient retention in order to provide a reference and guidance for the ...
Ai Shangjin +6 more
core +1 more source
The Effect of N2O Emission Mitigation by Growing Soybeans Instead of Other Crops [PDF]
, 2016 农业是重要的温室气体排放源之一，而在农业生产过程中施用氮肥是引起农业温室气体排放的主要原因。因此，如何合理有效的施用氮肥对减少农业温室气体排放、减缓全球气候变化至关重要。鉴于此，对通过合理施用氮肥从而减少温室气体排放的减排措施进行成本效益分析，将有助于我们找到具有经济效益的农业温室气体减排方法。目前，相关减排措施研究主要集中在农田测土配方施肥、改良施肥（缓释肥和长效肥）上。得益于与豆类作物共生的根瘤菌具有的固氮作用，豆类作物相比其他农作物施用更少的氮肥，从而排放更少的氧化亚氮（N2O）。因此 ...
许俊武
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Shuitu Baochi Xuebao, 2021 为了研究竹炭和炭基缓释肥添加对毛竹林土壤氮素流失和细菌群落结构的影响，采用室内土柱淋溶试验，测定了淋溶水中NH4+—N和NO3-—N浓度，分析了细菌群落多样性和组成。结果表明，与对照相比，炭基缓释肥的添加可以使土柱NH4+—N和NO3-—N累积淋溶量分别降低12.5%和13.6%。此外，竹炭的添加可以显著降低NH4+—N累积淋溶量（P0.1%）Burkholderia（伯克霍尔德菌属）、Cupriavidus（贪铜菌属）和Bradyrhizobium（慢生根瘤菌属）的相对丰度。炭基缓释肥添加对土壤NH4+
董达, 王宇婕, 姜培坤, 吴家森
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