Principles and key technologies for the large-scale ecological utilization of coal gangue [PDF]
Coal is the main energy in our country and the ballast stone of energy security. As an inevitable product in the process of coal mining and coal washing, coal gangue has an annual output of more than 700 million tons, which is in urgent need of large ...
Yanling ZHAO, Zhen MAO, Zhenqi HU
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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
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Soil Preferential Flow Characteristics in Coal Mine Subsidence Area under Different Rainfall Duration [PDF]
[Objective] Research on the preferential flow characteristics triggered by cracks in coal mining subsidence areas can provide support for scientific and rational development of water resource management and ecological management practice in the mining ...
DAI Bin +4 more
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, 2007 在滴灌条件下,利用流动分析仪测定基因型差异较大的陆地棉和海岛棉在不同施氮水平下,各主要生育期0~60 cm土壤无机氮含量,对土壤氮素营养诊断及氮肥推荐技术基因型间的异同进行试验研究。结果表明:不同棉花品种0~20 cm土壤Nmin含量与施氮量和产量均有显著的正相关关系,采样深度增加相关性降低,品种间基肥和追肥总量氮肥推荐指标差异不显著,可采用同一标准。但由于2个品种各时期吸收氮的能力不同,不同品种主要生育时期最佳供氮量,植株全氮含量和收获后0~60 ...
仲桂军, 冯固, 田长彦, 马英杰
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Migration Characteristics and Environmental Quality Assessment of Heavy Metal Elements in the Rock-Soil System in Qiongzhong, Hainan Island [PDF]
The rock-soil system is an important component of the Earth’s critical zone, but there are few detailed studies on different soil systems in Hainan Island.
Hongkun ZHAO +6 more
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Progress Analysis and Development Prospects of Soil Ecological and Environmental Effects of Interlayer Construction [PDF]
[Objective] This study systematically summarized and analyzed the current application status, technical characteristics, and environmental benefits of interlayer construction in soil improvement, nutrient cycling, ecological restoration, and crop ...
CHEN Jihong +7 more
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Long-term straw incorporation significantly reduced subsoil organic carbon stock in cinnamon soil [PDF]
, 2020 peer ...
Xu, Hu +5 more
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Distribution Characteristics of Soil Organic Carbon and Its Composition in Suaeda salsa Wetland in the Yellow River Delta [PDF]
, 2013 应用物理分组方法研究了黄河三角洲典型碱蓬湿地土壤有机碳及其组分分布特征.结果表明,研究区土壤重组有机碳是土壤有机碳的主要组成部分,土壤重组有机碳含量、土壤颗粒有机碳含量与土壤总有机碳含量都显著正相关.研究区土壤轻组组分比例和含量范围分别在0.008%～0.15%和0.10～0.40 g·kg-1,颗粒有机碳分配比例范围为8.83%～30.58%,说明黄河三角洲碱蓬湿地土壤有机碳中非保护性组分较低 ...
于君宝, 管博, 董洪芳
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Conception and practice of resource utilization, energization and functionalization of coal mining subsidence areas with high groundwater level [PDF]
Underground coal mining often leads to surface subsidence and water accumulation, changes in the ecological environment, as well as in the spatial pattern of land and water resources, in high groundwater level mining areas.
Liang YUAN, Liangji XU
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Shuitu Baochi Xuebao, 2008 根据地表植被和形成年限不同将城市公路绿化带土壤划分为不同的类型,应用同位素示踪理论和质量平衡原理探讨土壤有机碳(SOC)和溶解性有机碳(DOC)的来源和迁移规律。结果表明,城市公路绿化带SOC和DOC变幅较宽、离散程度较大;SOC和DOC含量无显著相关性;不同类型土壤SOC或DOC含量间均无显著差异(P>0.05)。贵阳市公路绿化带SOC中的C4-C为原始土壤所具有。表层土壤源于SOC的DOC含量较少。大气颗粒物和雨水中的DOC是土壤表层DOC的主要来源 ...
涂成龙, 刘丛强, 武永锋
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