Results 1 to 10 of about 256 (146)
Effects of Biochar Additions on Moisture Content and Depletion of Loessial Soil [PDF]
[Objective] The influence of biochar additions on water storage and water retention capacity of loessial soil during the rainy season was clarified in order to provide basic theoretical support for the scientific use of biochar and to improve soil on the
Li Yuanyuan +4 more
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Effects of Desulfurized Gypsum Applied Combined with Polyglutamic Acid on Improving Saline Soil [PDF]
[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
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Effects of Bio-based Compound Amendments on Overall Soil Fertility of Coastal Saline Soils [PDF]
[Objective] The effects of bio-based composite amendments on the physicochemical properties and microbiota of saline soils in the Yellow River delta and the Northern Jiangsu mudflats were determined in order to provide a scientific reference for the ...
Gan Quanfeng +5 more
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Alkali-Modified Zeolite: Adsorption Performance for Pb and Ammonia-Nitrogen and Its Remediation Effect on Soil from Rare Earth Mines [PDF]
BACKGROUNDCo-contaminated soils in rare earth mining areas, particularly with Pb and ammonia-nitrogen, present a significant environmental challenge. These contaminants have the potential for lasting, irreversible effects on both ecosystems and human ...
Longlong ZHANG +7 more
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在实验室条件下,研究了生物质磺酸钙对荒漠沙土的改良作用。结果表明,沙土中添加2%生物质磺酸钙,土壤中有机质、全氮、速效钾、速效磷含量和土壤持水量均显著增加 ...
保雄伟 +3 more
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Research progress in cleaning and efficient remediation of heavy, toxic, lead-contaminated soil [PDF]
With the rapid development of industrialization and human civilization, the soil polluted by heavy, toxic lead is becoming increasingly severe worldwide. Thus, it is imperative to control soil pollution due to lead. In this paper, the background, status,
Guang-hua LU +5 more
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Asymmetric response of soil methane uptake rate to land degradation and restoration: Data synthesis [PDF]
Land degradation and restoration profoundly affect soil CH(4)uptake capacity in terrestrial ecosystems. However, a comprehensive assessment of the response of soil CH(4)uptake to land degradation and restoration at global scale is not available. Here, we
Chen, Qiong +6 more
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土壤盐碱改良剂的应用研究对土壤改良及作物生长有重要意义,其中富含有机酸的改良剂因其无毒无害效果显著被广泛使用。通过室内一维土柱入渗试验,选取"禾康"盐碱清除剂作为典型有机酸改良剂(简称OA),设置4组施用含量梯度(0.140,0.145,0.150,0.155 g/cm2),以未施加OA的处理作为对照,同时设置不同的OA施加深度(5—10,15—20,25—30 cm),以研究OA对盐碱土水盐运移的影响。结果表明:混施OA处理中,随着OA施加量的增加,土壤入渗能力减弱,稳定入渗率显著下降 ...
李晓晴, 周蓓蓓, 杨扬, 陈晓鹏
doaj
为探讨化学改良剂对苏打盐碱土稻田生态系统中氟迁移的影响,采用盆栽试验,研究硫酸铝、脱硫石膏和有机复合改良剂作用下的土壤各形态氟含量变化,以及土壤氟向水体和地上部植株的迁移情况。结果表明,化学改良剂影响苏打盐碱土—水—作物系统中氟的迁移及生物有效性。种稻后各改良剂处理的土壤水溶态氟变化范围为8.33~20.90 mg/kg,与对照相比,均呈下降趋势,其中硫酸铝处理下降得最多,降低60.15%;可交换态氟和有机束缚态氟呈增加趋势,其中有机复合改良剂处理增加得最多,分别为79.54%和86.37 ...
郑玉昕 +7 more
doaj
利用10种不同天然矿物作为土壤改良剂,对矿化度4~5g/L的微咸水灌溉农田土壤进行改良效果试验。结果表明:改良剂1能够降低土壤容重12.23%,提高土壤孔隙度12.28%。参试的改良剂均能够降低0~5cm土壤全盐量,最大降幅为72.5%,并能降低0~40cm土壤中CO3^2-和HCO3^-离子,最大降幅达100%,改良剂4能够增加土壤中的Ca^2+、Mg^2+离子、降低土壤中的K^++Na^+离子。天然矿物土壤改良剂能够有效地改善土壤物理和化学环境。
邵玉翠 张余良 李悦 严晔端 安玉钗
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