Results 71 to 80 of about 485 (114)

基于实地和遥感调查的离子型轻稀土尾砂土壤侵蚀对植被修复措施响应

open access: yesShuitu Baochi Xuebao, 2020
稀土开采产生大量尾砂,导致严重土壤侵蚀,伴生水质和地质灾害,评价植被修复措施对稀土尾砂土壤侵蚀治理效果可为措施优选提供理论依据。以寻乌县离子型轻稀土尾砂区为研究区,基于1982—2015年GIMMS NDVI 3 g、DEM等遥感和尾砂理化性状现场调查数据,采用空间代时间方法,结合RUSLE模型及其全微分公式探究不同修复年限土壤侵蚀量对植被修复措施的响应机理。结果表明:1982—2015年研究区土壤侵蚀模数显著下降,倾向率为-60 t/(km2·10a),突变年份为2008年;在植被修复措施实施年 ...
罗建伟, 白桦, 鲁向晖, 赵建民
doaj  

Risk Assessment and Influencing Factors Analysis of Heavy Metals in Soil of Non-Surface Coal Mines in Southern Hebei Province [PDF]

open access: yes
Non-surface coal mining is an important means to obtain coal resources. It is crucial to study the influencing factors and ecological risks of soil heavy metal contents of non-surface coal mines for the protection and management of mine area ecosystems ...
Anbing ZHANG   +5 more
core   +1 more source

Research on soil improvement and engineering application under mixed application of environmental materials in alpine mining areas [PDF]

open access: yes
To address the issues of inadequate topsoil structure, soil erosion, and low soil fertility in the reclamation of alpine mining areas. Taking Qinghai West Copper Mine as an example, this study investigates the impact of three materials—sheep manure(A ...
Jie REN   +4 more
core   +1 more source

[Application of carbon dots in analysis and detection of antibiotics]. [PDF]

open access: yesSe Pu, 2021
Chai P   +6 more
europepmc   +1 more source

Spatial Pattern and Influence Factor Analysis of Soil Organic Matter Based on the GeoDetector Model: Taking Liaoyang—Anshan Area as an Example [PDF]

open access: yes
Spatial pattern of organic matter distribution and its influencing factors in the study area can provide a decision-making basis for territorial spatial planning. The majority of previous studies in this area focused on the soil surface, and most of them
Cang GONG   +8 more
core   +1 more source

水力侵蚀对土壤碳循环及土壤微生物多样性影响的研究进展

open access: yesShuitu Baochi Xuebao
[目的] 针对水力侵蚀对土壤碳循环"源汇"效应争议,综述水力侵蚀对土壤有机碳矿化作用和土壤微生物多样性的影响机制,提出未来定量研究的方向与注意事项。[方法] 在提出水力侵蚀对土壤碳循环"源""汇"效应概念和理论的基础上,分析现阶段研究中水力侵蚀对土壤碳循环"源汇"效应争议的核心问题,进而探讨水力侵蚀导致不同种类土壤微生物多样性变化的差异及其作用机制。[结果] 水力侵蚀过程导致土壤有机碳矿化作用形成碳循环中的"源"效应,而沉积过程导致有机碳迁移至低洼处固存形成碳循环中的"汇"效应 ...
杨文博, 刘娜, 蔡强国, 孙莉英
doaj  

Theory and method of suitable evaluation for mine environmental positive effects development and utilization [PDF]

open access: yes
Since the economic reform and opening up, the exploitation of mineral resources has made significant contributions to the economic development of China.
Honglei LIU   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy