Study on the effect of layered structure of overlying strata on soil damage in mining areas in the loess covered region of northern Shaanxi [PDF]
Ecological protection in coal mining areas is a major problem that needs to be solved urgently for high-quality development in the Yellow River Basin. Scientific understanding of the response law of the overlying strata of the coal seam to the surface ...
Jiangbo WEI +7 more
core +1 more source
Benefit Evaluation of Different Allocation Modes of Soil and Water Conservation Measures in Ta-pieh Mountains Area [PDF]
[Objective] In order to reveal the effect of different soil and water conservation measures on reducing runoff and sediment in Ta-pieh Mountains, optimize the allocation mode of soil and water conservation measures in Ta-pieh Mountains.
JIA Tinghui +4 more
core +1 more source
Shuitu Baochi Xuebao, 2018 为改善江汉平原地区稻田水肥管理措施，采用田间小区试验，研究了常规淹灌（CF）和浅灌深蓄（SIDS）条件下，农民习惯施肥（FFP）、30%尿素+70%控释参混肥（30%N+70%CRF）和优化减氮施肥（OPT-N）对水稻各生育阶段稻田氮磷流失特征、养分吸收和土壤养分积累的影响。结果表明：与CF处理相比，SIDS处理田间灌溉水量、总用水量、径流量和渗漏量分别降低41.7%，18.5%，45.8%和21.9%，降雨利用率增加16.2%，TN和TP径流流失量分别降低32.6%～35.9%和36.4%～53.1%，
晏, 吴启侠, 朱建强, 张露萍
doaj
Simulation on Soil Carbon, Nitrogen Cycles and Output Characteristics at Banana Fields, Southeast China [PDF]
, 2011 土壤C、N循环是农业生态系统最基本的生态过程，了解土壤C、N循环是研究陆地生态系统C、N循环的重要前提。本文以南靖县五川流域的一个小流域为研究区域，选取施肥量高、面积大的种植香蕉土地利用类型为例，采取模型模拟的方法，应用NCSWAP模型模拟了较长时间尺度下(1998~2007年)土壤C、N各种循环过程及输出特征，对可能影响C、N循环的管理措施因素进行情景模拟分析，最后对农业生产和管理环节提出建设性的措施，取得了如下研究成果： (1)对种植香蕉土壤的NO3--N和SOC含量季节性变化进行了验证 ...
黄虹
core
Systematic protection and restoration of water bodies in collapse areas based on surface runoff regulation [PDF]
In order to solve the problems of surface runoff disorder, poor water connectivity, and weak hydrodynamic water circulation capacity in high groundwater level mining areas in the east, and to reduce the non-point source pollution and point source ...
Dong GUO +5 more
core +1 more source
Research Status and Prospect of the Application of Radionuclides in Agricultural Resources and Environment [PDF]
Radionuclides with a diverse range of applications and high analytical efficiency to promote multidisciplinary Innovation and developments, which are considered to be an essential tool in the field of modern science and engineering.
Jianfeng ZHANG +4 more
core +1 more source
Shuitu Baochi Xuebao, 2023 为揭示工程堆积体平台汇流造成的水沙及氮磷养分流失特征,以矿区堆土场为研究对象,采用室内放水冲刷试验,研究不同上方来水流量(1.7,2.3,2.9 L/min)和坡度(25°,30°,35°)下地表径流、壤中流及侵蚀泥沙产生过程,分别测定氮磷养分浓度并计算流失量及贡献占比。结果表明:蒙东地区覆土排土场边坡产流方式主要为地表径流,随坡度和冲刷流量的增大,地表径流量增大,壤中流量减小。产沙量随坡度的增大先增大后减小,侵蚀产沙的临界坡度在30°附近。地表径流中铵态氮及磷酸盐流失浓度均大于壤中流 ...
樊桐桐 +4 more
doaj
Shuitu Baochi Xuebao, 2019 为阐明高寒草甸退化区土壤风力侵蚀作用及土壤流失规律，以青海省河南县退化高寒草甸高原鼠兔土丘为研究对象，通过开展野外人工模拟风蚀试验，对不同风速下鼠丘土壤流失量及其养分流失规律进行分析和讨论。结果表明：（1）风蚀作用下土壤流失量均呈先快后慢的变化规律，风速从6.0 m/s逐步增加到12.0 m/s时，土壤流失量增长约6.3倍。（2）风蚀过程中鼠丘高度和直径随风蚀时间的变化较明显，其变化速率与土壤流失速率相对应，且风蚀促进土壤水分的蒸发速率，从而促进鼠丘的土壤可蚀量。（3 ...
李国荣 +8 more
doaj
Spatial Differentiation and Correlation of Ecological Stoichiometric Characteristics of Cynodon dactylon and Soil in the Water-level Fluctuation Zone of the Three Gorges Reservoir Area [PDF]
[Objective] Cynodon dactylon is an important component and the dominant species in the ecosystem of the water-level fluctuation zone (WLFZ) of the Three Gorges Reservoir, the largest hydropower project in the word.
JIAN Chen +4 more
core +1 more source
Hydroecological effects of mining and its restoration ways in coal mining areas of Western China [PDF]
The mining areas in arid and semi-arid region have become important coal production bases to ensure China’s energy strategic security, however, coal development by large-scale and high-intensity mining has triggered a series of water resources and ...
Guangrong GE +7 more
core +1 more source