西安周边地区饮用水砷含量及来源初探-西北地质-西北地调 关键词： 饮用水；砷含量；地质背景；人为活动 [gap=1566]Key words： drinking water，arsenic content ，geologic background，man made activity
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Due to human activities on the soil of the growing impact in some areas more than other soil factors , in particular on the impact of surface soil, The soil- landscape has the new differentiation.
在这些地区,人为活动对土壤的形成和发育的影响已超过其它成土因素,特别是对表层土壤的影响,使土壤—景观发生新的分异。
参考来源 - 小尺度土壤基层分类—景观模型研究Urban area is densely affected by human activities,which makeit differ sharply from other kinds of landscape.
城市是一种人为活动影响比较强烈的景观。
参考来源 - 城市的景观生态学探讨However,because of the influence from factors,such as natural geology,human activity,it also is the high incidence of geological disasters.
然而,由于山区受自然地质、人为活动等因素的影响,也成为地质灾害的高发区。
参考来源 - 河北省满城县旅游开发中若干问题的深入研究·2,447,543篇论文数据，部分数据来源于NoteExpress
由于人为活动较频繁，致使湿地生态平衡受到威胁。
The ecosystem balance of wetland was destroyed by multifarious artificial activities.
人为活动因素是当今红土环境问题恶化和加剧的主导因素。
The human activity was result in deterioration in red soil environment today.
地下水系统动态综合反映了气象、地形、人为活动的影响。
The groundwater system dynamic state synthesized to reflect the influence of the weather, geography, artificial activity.
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