Results 31 to 40 of about 437 (144)
Eco-treatment Engineering of Sewage Forest Land in Xiamen [PDF]
, 2006 文章介绍了厦门市狐尾山原生生活污水林地生态处理工程依循“污水-土壤-植物”资源再生机制,提出了“截流井+氧化塘(调节池)+污水动力输送、管网投配+林地+城市景观林地 ...
卢昌义, 胡宏友, 谢海生
core
Shuitu Baochi Xuebao, 2008 通过微咸水入渗实验结果和入渗模型分析实验资料方法研究了碱土、盐土在微咸水入渗条件下土壤水盐运移特性。结果表明:当矿化度在一定范围,相同入渗时间内两种土壤的累积入渗量、湿润锋随入渗水矿化度的增加而增加;不同SAR的微咸水入渗对盐土、碱土入渗能力影响不大,特别是盐土。碱土的水分和盐分运移与入渗水矿化度均呈正相关关系,盐土则不然。
杨艳, 王全九
doaj
Properties of ecological environment damage and their mechanism of restoration in arid and semi-arid coal mining area of western China [PDF]
The focus of coal development in China has been strategically shifted westward. That realize green mining of coal resources and coordinated ecological development becomes one of the important measures to ensure national energy security.
Suping PENG, Yinli BI
core +1 more source
Shuitu Baochi Xuebao, 2005 分析了土壤容重和气阻对一维垂直积水入渗的入渗率、累积入渗量以及湿润锋的影响,并对入渗过程中土壤平均含水率增量进行了研究。容重和气阻均对入渗率、累积入渗量和湿润锋有明显的影响:容重增加导致累积入渗量减少的减渗率在入渗过程中为一常数,相对于容重为1.3g/cm3土壤的累积入渗量,容重为1.4g/cm3和1.5g/cm3土壤的减渗率分别为31.79%和52.03%。容重增加导致湿润锋减少的减渗率在入渗过程中并非一常数,受到了入渗时间的影响;气阻导致累积入渗量和湿润锋减少的减渗率随基准入渗量的增加而变大 ...
张振华 谢恒星 刘继龙 蔡焕杰
doaj +2 more sources
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
Current situation and scientific challenge of soil and water erosion in Gully Consolidation and Highland Protection Project of DongZhi Loess Plateau [PDF]
Due to the influence of extreme rainfall and high intensity human engineering activities, the advance speed of the gully head in the Loess Tableland is intensified, which seriously threatens the economic and social development of the Loess Tableland.
Buping ZHANG +5 more
core +1 more source
Shuitu Baochi Xuebao, 2019 为研究红壤地区土壤容重对涌泉根灌水分入渗能力的影响，以江西红壤为例，采用室内试验，研究了不同容重条件下红壤涌泉根灌水分运移及其分布特性。结果表明：容重对土壤入渗能力有显著影响。随着容重的减小，湿润锋、累积入渗量、入渗率均呈增大趋势，且容重越小，减小的幅度越大。湿润锋、累积入渗量以及稳渗率与土壤容重均呈幂函数负相关关系；对于同一深度土层，土壤容重越大，对应的土壤含水率越小，在水分再分布过程中容重对含水率分布的影响逐渐减弱。通过Kostiakov入渗模型表明，土壤初始入渗速率随容重增大而减小，且容重越大 ...
刘风华, 代智光, 费良军
doaj
Shuitu Baochi Xuebao, 2004 在山东省邹城市刘庄小流域水土保持生态修复区内，对9种森林植被类型的土壤入渗和土壤贮水特征进行了研究。结果表明：①各种森林植被都具有明显的改良土壤水文物理性质、提高土壤入渗和贮水能力的作用，混交林的土壤入渗和贮水能力明显大于单纯林，单纯林的土壤饱和贮水量和土壤稳定入渗率分别比荒草坡地高33％和142％，而混交林的分别比荒草坡地高54％和358％。②各种森林植被对土壤(非毛管)滞留贮水功能的改善程度大于对土壤(毛管)吸持贮水功能的改善，混交林的土壤(毛管)最大吸持贮水量比荒草坡地高37％，而平均土壤(非毛管)
刘霞 张光灿 李雪蕾 邢先双 赵玫
doaj +2 more sources
Spatial relationship between root system and soil properties of mature and densely planted Kuerlexiangli pear under long-term strip fertilization [PDF]
[Objective] Kuerlexiangli pear (Pyrus sinkiangensis Yü et Lu.) is the main cultivar in Southern Xinjiang. In recent years, the main trunk dense planting pear orchard has developed rapidly and entered the peak fruiting period.
AN Shijie +9 more
core +1 more source
Shuitu Baochi Xuebao, 2021 研究自然降雨对干化土壤水分恢复的有效性，有利于合理利用降水资源，加强干化土壤水分管理，促进土壤干层得到有效恢复。在陕北米脂试验站设置野外地下大型土柱，通过2014—2019年连续定位监测降雨、土壤含水率状况，分析自然降雨对干化土壤水分恢复的有效性。结果表明：（1）从深层干化土壤水分恢复角度考虑，黄土丘陵半干旱区降雨可以分为3种类型：表层入渗快速蒸发型、浅层入渗缓慢蒸发型和深层入渗补给型。其中深层入渗补给型降雨为有效降雨，该类型雨量 > 26 mm，能够对深层干化土壤产生有效水分补给。2014 ...
汪星 +5 more
doaj