Distribution characteristics and influencing factors of iron-rich groundwater in Xining City [PDF]
Groundwater is an important water supply source in Xining City. Previous works have found that iron-rich groundwater limits water development and utilization.
Bei LI +11 more
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Shuitu Baochi Xuebao, 2001 在干旱半干旱区植被生态建设过程中 ,需要进行决策并经常引起争论的问题是 ,应该选择哪种类型植被 ,才能获得最大的防风效应。为比较不同防风材料降低风速效应的差异 ,在春季大风天气 ,选取毛乌素沙地 5种常见的灌草乔植物和 2种常见的人工防风材料栅格沙障和栅栏 ,进行防风性能野外实地观测。分析结果表明 ,几种防风材料降低风速性能从大到小的次序为 :沙蒿 >芨芨草 >杨柴和牛心朴子 >沙障 >栅栏 >旱柳 ,沙蒿性能最好 ,降低风速比率达到 0 .49,旱柳性能最差 ,近似为 0 ;就乔、灌、草植被类型而言 ,
黄富祥 高琼
doaj
Driving factors analysis of surface soil moisture variation in Zhangjiakou-Chengde district based on geodetector [PDF]
As an important water conservation and sand-windy barrier, Zhangjiakou and Chengde (Zhang-Cheng) district of Hebei Province is very important for ecological protection in the Beijing-Tianjin-Hebei region.
Aifang JIN +4 more
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Spatial-temporal heterogeneity of landscape ecological risk in Yushenfu Mining Area from 1995 to 2021 [PDF]
As a strong human disturbance, coal mining has affected the ecosystem service function and economic value on mining area. However, there is a lack on the comparing for the long-term spatial scale evolution of landscape ecological risk after mining ...
Benyan NING +4 more
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Effect of coal mining on net primary productivity of vegetation in Shendong Mining Area [PDF]
Coal mining in Shendong Mining area has an important impact on the local ecological environment, especially the growth of vegetation. In order to describe this effect quantitatively, this study uses a regional evapotranspiration model to calculate the ...
Bingqian LI +9 more
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River-groundwater transformation and ecological effects in the Tuwei River watershed [PDF]
The Tuwei River, an important tributary of the Yellow River, located in the eastern Jiziwan region exhibits a close hydraulic connection between atmospheric precipitation, groundwater, and river-lake water in the watershed. This connection influences the
Fan GAO +5 more
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Shuitu Baochi Xuebao, 2007 选择毛乌素地区东北部梁地上3种类型的小叶杨人工林,研究了坡位对其生长和土壤养分空间差异的影响。结果表明:整体上,坡位对小叶杨和沙柳的生长均有显著影响。小叶杨人工林植被生长均表现为:坡底>坡顶≥坡中,小叶杨和柠条的混交林比其他两个林型生长好。小叶杨人工林土壤有机质含量在坡底部位多数土层中含量较高,在0.57%~1.09%之间,坡中和坡顶部位含量较小,分别在0.36%~1.07%和0.32%~0.82%之间,这与植被生长较好密切相关;土壤有机质含量在不同坡位均呈波动式减少的趋势,0~10 ...
刘鑫, 满秀玲, 陈立明, 李文影
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Effect of AMF inoculation on root distribution and water use efficiency of Amorpha fruticosa L in western coal mining area [PDF]
Coal mining in arid and semi-arid areas has led to the emergence of large areas of coal mining subsiding areas. The ecological reclamation of mining areas is hard, and the mycorrhizal microbial technology for ecological restoration has become a current ...
Chao WU +4 more
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The effects of drought stress on the stoichiometric characteristics of C, N, and P in Pinus yunnanensis seedlings [PDF]
[Objective] This study aims to investigate the effects of drought stress on the distribution of carbon (C), nitrogen (N), and phosphorus (P) elements and stoichiometry in organs of Pinus yunnanensis seedlings, and to provide a theoretical basis for ...
CHEN Gang +5 more
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Shuitu Baochi Xuebao, 2018 利用钻探和抽水试验资料，结合遥感资料和植被实地样方调查资料，分析了该区地下水富集特征和开发利用对生态环境的影响。结果表明：含水层的厚度是地下水富集的主控因素，二者呈正相关关系；基底古凹陷分布区含水层厚度较大，是地下水的富集区；埋深3 m是滩地地下水开采的约束水位，过量的开采可能造成湖盆滩地植被向沙地植被的演替或退化，甚至消亡，加快沙漠化进程；地下水开采对沙地、沙丘生长的耐干旱植被物种的影响较小。研究结果可为该区内水源地选址、地下水合理开发利用、水土保持和生态环境保护提供基础理论和数据。
范磊, 侯光才, 陶正平
doaj