论文济宁煤矿区采煤塌陷对土壤有机碳影响是关于有机碳方面的论文题目、论文提纲、有机碳的测定论文开题报告、文献综述、参考文献的相关大学硕士和本科毕业论文。
摘 要：采煤造成地表塌陷,原地貌发生大的变化,土壤受到严重扰动,致使土壤养分转化和迁移发生较大的空间变异,而土壤有机碳的变化是表征土壤养分的关键因子.土地塌陷对土壤有机碳的影响逐渐成为复垦土壤质量的研究热点问题.本研究选择济宁兖州煤矿区典型塌陷区,采集不同坡位和不同深度的土壤样品,分析土壤有机碳在坡面和垂直剖面上的分布特征及影响因素.结果表明：（1）在坡面上,土壤有机碳呈现出从坡顶到积水边缘迁移,先降低再升高,在塌陷中心富集的变化趋势,采煤塌陷对坡中和坡底部位的土壤有机碳含量影响差异显著（P<0.05）；（2）在垂直剖面上,土壤有机碳含量随着土壤剖面层次的加深而降低,有机碳含量主要集中在0～20 cm土层,占整个土层（0～60 cm）的65.9%,显著高于20 cm以下各层次的有机碳含量（P<0.05）；（3）土壤的不同性质空间变异程度大小排序大致为：有机碳>热导率>含水量>容重>pH值；（4）土壤有机碳和容重、含水量、pH值、热导率均呈负相关关系,其中和含水量的相关性达到显著水平,相关系数为 -0.493*（P<0.05）,与容重和pH值达到极显著相关,相关系数分别为 -0.699**、-0.684**（P<0.01）,与热导率的相关性不显著.土地塌陷产生的地面坡度已经引起土壤有机碳的流失,土壤肥力下降,土地生產力也随之下降.
关键词：采煤塌陷；土壤有机碳；理化性质；相关性
中图分类号：S153文献标识号：A文章编号：1001-4942（2018）03-0077-06
Abstract The coal mining causes surface subsidence. The original landform changes a lot, and the soil is seriously disturbed, which resulting in soil nutrient transformation and migration at large spatial variation. The variation of soil organic carbon is the key representation factor of soil nutrient. The study on the impacts of land subsidence on soil organic carbon has gradually become a hot issue of reclamation soil quality. In this study, a typical subsidence area in Yanzhou coal mining area of Jining was selected to collect soil samples at different slope positions and depths, and the distribution characteristics and influencing factors of soil organic carbon on the slope and vertical profiles were analyzed. The results were as follows. （1） In the slope direction, soil organic carbon showed decreasing at first and then increasing from the top to the edge of water transfer, and enriched at the collapse center. The effects of mining subsidence on soil organic carbon content on the middle and base of slope had significant differences （P<0.05）. （2） In the vertical section, the content of soil organic carbon decreased with the increase of depth in soil profile. The content of organic carbon was mainly concentrated in the 0～20- cm soil layer, accounting for 65.9% of the whole soil （0～60 cm）, and it was significantly higher than those in the soil layer below 20 cm （P<0.05）. （3） The spatial variability degree of different soil properties are ranked as follows： organic carbon>thermal conductivity>water content>bulk density>pH value. （4） Soil organic carbon were negatively related with soil bulk density, water content, pH value and thermal conductivity, and the correlation with water content reached a significant level with the correlation coefficient as -0.493* （P<0.05）； the correlations with the bulk density and pH value reached very significant levels with the correlation coefficients as -0.699** and -0.684**（P<0.01）； and the correlation with thermal conductivity did not reach the significant level. The land slope caused by land subsidence had already caused the loss of soil organic carbon, which further resulting in decline of soil fertility and land productivity.
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参考文献：
1、 高产农田土壤有机碳含量时空差异 摘要：以松辽平原玉米带的农田土壤为研究对象，在田间调查采样的基础上，研究高产田与低产田土壤有机碳含量的时空差异。结果表明：在玉米收获后，高产玉米。
2、 张家口蔚县煤矿区地面沉陷星地一体项目技术 摘要：本文对张家口蔚县煤矿区地面沉陷星地一体监测示范项目技术进行了总结探讨。关键词：煤矿区地面沉陷；雷达卫星数据；国产高分辨率遥感影像数据；地。
3、 不同林龄橡胶凋落物叶分解特性和有机碳动态 摘 要 通过网袋法，研究一年内6 a、12 a、20 a、28 a共4组不同林龄橡胶凋落物叶分解及有机碳动态变化的过程。结果表明：（1）不同林龄。
4、 近20年海南岛土壤有机碳时空变异 摘 要 为探明海南土壤有机碳变化规律，以海南岛表层土壤有机碳为研究对象，在收集调查相关历史资料的基础上，采集土壤样品并测定其土壤有机碳含量，利用。
5、 施用土壤调节剂对咖啡苗生长连作酸化土壤酶活性影响 摘 要 通过盆栽试验研究施用不同调节剂对连作酸化土壤酶活性及咖啡幼苗生长的影响。结果表明：在连作酸化土壤中施用1%石灰+10%牛粪有机肥（与土壤。
6、 基于决策树分类济宁市土壤有机碳遥感反演 摘要：本研究利用Landsat 8遥感影像数据以及土壤有机碳实测数据，以研究区表层0～20 cm土壤的有机碳含量为研究对象，通过SPSS的多元线。