高扰动地区水土流失观测方法及条件要求

来源 :水土保持应用技术 | 被引量 : 0次 | 上传用户:chen2591272
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
矿山开采及复垦等高扰动区域对流域地表、地下水文水质有一定的影响。美国学者J.V.Bonta等对俄亥俄州的3个小流域进行了9 a的监测。遭受采煤等剧烈土地扰动破坏的流域,其地表、地下水文、水化学过程要经过许多年才会达到新的动态平衡,需要较长的监测期和水文学上的稳定性,才能确定采煤和复垦对流域水文水质的影响。开展关于高扰动区域对流域水文水质影响的研究具有长期性和高风险性。观测流域必须具有水文学上的稳定性,并需要一定程度的采矿知识来确保各个阶段观测设备的安全设置和保存。为了达到研究的目的,有些设备必须安置到离开采活动尽可能近的地方,但要离可能发生滑坡的地段尽量远些,并且要保证在开采和复垦过程中设备能保存下来。经高扰动的流域,在遭受极端降雨时,会产生含有大量推移质的过饱和流,用Drop-box测流堰可获得较有效的径流和水化学数据资料。 High disturbed areas such as mining and reclamation have a certain impact on the surface and groundwater quality of the watershed. American scholar J. V. Bonta et al. Conducted 9-year monitoring of three small watersheds in Ohio. After being subjected to violent disturbance such as coal mining, the surface water, groundwater hydrology and hydration process will take many years to reach a new dynamic balance, which requires long monitoring period and hydrological stability to determine the coal mining And the impact of reclamation on hydrology and water quality in the basin. Research on the impact of high disturbance areas on the hydrological and hydrological quality in a river basin has long-term and high-risk effects. The observation basin must be hydrologically stable and require some level of mining knowledge to ensure the safety settings and preservation of observation equipment at all stages. For research purposes, some equipment must be located as close as possible to the mining activity, but as far as possible from landslide-prone areas and to ensure that equipment can be preserved during the mining and reclamation process. In highly disturbed watersheds, when subjected to extreme rainfall, supersaturated flow with a large amount of bedrock occurs, and more effective runoff and water chemistry data can be obtained with Drop-box weir.
其他文献
Background Target-controlled infusion (TCI) has been recently developed and successfully implemented in clinical practice. This study was conducted to determine
AIM:To evaluate the hepatoprotective activity of a hydroalcoholic extract of the bark of Anogeissus latifolia; in vitro in primary rat hepatocyte monolayer cult
AIM: To investigate the role of emodin in protecting the liver against fibrogenesis caused by carbon tetrachloride (CCl_4) in rats and to further explore the un
About 30% of patients with cirrhosis have diabetes mellitus(DM).Nowadays,it is a matter for debate whether type 2 DM in the absence of obesity and hypertriglyce
客观评估地区电网总体建设规模是规划管理者的重要工作,对管理范围内的地区进行科学分类是实现评估的基础.文中在假设已建立评价指标体系的前提下,提出了一套实现地区电网分
AIM: To identify the genes related to lymph node metastasis in human hepatocellular carcinoma (HCC), 32 HCC patients with or without lymph node metastasis were
利用RT-PCR方法,构建获得了由T7RNA聚合酶启动子驱动的甜菜黑色焦枯病毒(BBSV)全长cDNA克隆pUBF52.摩擦接种苋色藜(Chenopodiumamaranticolor)后,体外转录产物可导致与野生病
从政府机构节能的紧迫性出发,基于"企业化政府"理论和政府机构节能管理工作存在的问题,分析了将"成本倒逼法"引入政府机构节能管理工作的理论依据和现实基础,论证"成本倒逼法
研究一种针对白内障患者的潜在视功能检测仪。采用透射式视力分辨率板并且使进入眼瞳成像光束足够细和有足够的光能量,以致能够通过白内障患者云雾状晶状体中的微小间隙在视