Effects of Chemical Fertilizer Reduction Combined with Straw and Organic Fertilizer Application on Soil Acidification Mitigation and Erosion Control [PDF]
[Objective] To demonstrate that appropriate application of straw and organic fertilizer can effectively improve soil quality, have a positive effect on soil acidification mitigation and erosion control.
CAO Yunfei +9 more
core +1 more source
Shuitu Baochi Xuebao, 2007 以长期定位试验点的紫色水稻土为研究对象，研究了耕作制度对紫色水稻土活性有机质和碳库管理指数的影响。结果表明：稻田长期垄作免耕0～10cm土层有机质含量比常规平作高，10～60cm土层有机质含量则比常规平作低；表明稻田长期垄作免耕土壤有机质具有表层富集现象；水旱轮作各土层有机质含量均比常规平作低。垄作免耕各土层活性有机质含量普遍增加，水旱轮作表层（0～10cm）活性有机质含量减少，其余土层变化不大。对活性有机质组分含量的研究表明：与常规平作相比，垄作免耕增加了土壤表层活性有机质各个组分的含量 ...
罗友进, 王子芳, 高明, 魏朝富
doaj
Urban Soil and Its Relationship to Landscape Planting [PDF]
, 2003 城市土壤是影响城市绿化植物生长的重要环境因子。从城市土壤的物理化学特征如结构、土壤容重和紧实度、城市土壤的水分供应、土壤有机质与养分含量、土壤酸碱度、土壤次生盐渍化和盐基饱和度等角度讨论了城市土壤与城市绿化植物生长之间的关系。城市绿化应该从土壤抓起。Soil is one important factor influencing the growth of plant species in the urban.
林鹏, 王文卿, 王良睦
core
Effects of Different Logging Residue Treatments on Acid Hydrolyzed Soil Organic Carbon Fractions and Soil Microbial Communities in a Chinese Fir Plantation [PDF]
[Objective] Acid hydrolyzed soil organic carbon fractions are important in soil, and the changes of their contents will affect soil microbial community composition.
GUO Jianfen +5 more
core +1 more source
The Long-term Variations and Influencing Factors of Soil Saturated Hydraulic Conductivity in Terraces on the Loess Plateau [PDF]
[Objective] The long-term variations of soil saturated hydraulic conductivity (Ks) and its primary controlling factors in terraces on the Loess Plateau were explored. [Methods] Terraces were selected for three land use types, i.e.
CHANG Heng +6 more
core +1 more source
贡嘎山东坡植物和土壤有机质的<italic>δ</italic><sup>13</sup>C差异 [PDF]
, 2009 敏 刘 +4 more
openalex +1 more source
The Effect of Oxalic and Acetic Acid on the Desorption of Phenanthrene in Mangrove Sediment [PDF]
, 2010 目前，有关红树林湿地有机污染物的研究主要集中在有机污染物在湿地沉积环境中的时空分布及红树林生态系统对有机污染物的降解两个方面，有关红树植物根系分泌物对沉积物中有机污染物吸附行为影响的研究尚不多见；而相关研究对于揭示有机污染物在滨海河口湿地根-土界面的迁移机制，探讨有机污染物的植物修复机理具有重要意义。本文以不同类型的红树林沉积物为研究对象，以菲为多环芳烃的代表，以草酸和乙酸为红树根系分泌物中小分子有机酸的代表，应用振荡平衡法，研究了不同浓度外源菲进入红树林沉积物后的吸附/解吸差异，探讨了根系分泌物（草酸、
叶菁
core
Rhizosphere Soil Nutrient and Enzyme Activity in Different Stand Age of Casurina equisetifolia Protection Forest [PDF]
, 2006 在福建省东山县滨海沙地,开展了不同年龄木麻黄林地根际和非根际土壤养分和酶活性的测定,研究结果表明:(1)不同年龄木麻黄林地根际pH小于非根际土壤,随林龄增长根际土壤和非根际土壤pH值均表现为下降趋势;根际土壤有机质、全氮和水解氮含量高于非根际土壤,各土层有机质含量在中龄林时最大;从中龄林阶段至过熟林,水解氮含量下降;全磷和速效磷含量从幼林发育至中龄林、近熟林逐渐减少,至过熟林略有恢复;根际土壤全钾、速效钾含量呈增加趋势。(2)不同年龄木麻黄林地根际CEC值、水解性总酸度、交换性盐基总量、交换性M g2 ...
侯杰 +5 more
core
Shuitu Baochi Xuebao, 2019 为探明碳氮添加4年后，土壤全氮、有机碳及其组分（可溶性有机碳、微生物量碳、轻组和重组有机碳）的变化特征，依托布设于甘肃省定西市安定区李家堡镇的不同碳源配施氮素田间定位试验，涉及秸秆、生物质炭、氮素3个因素，秸秆设置为不施、施用秸秆2水平）生物质炭为不施和施用生物质炭2个水平）氮素设置为不施氮、施纯氮50 kg/hm2、施纯氮100 kg/hm2 3个水平，共9个处理。结果表明：不同处理下土壤全氮、有机碳及其组分的含量均随土层的加深而降低。添加生物质炭对土壤全氮、有机碳及其组分均具有不同程度的提升效应 ...
江晶 +4 more
doaj