Evaluation of freeze-thaw wind erosion and analysis of influencing factors on the Tibetan Plateau based on the improved RWEQ [PDF]
Freeze-thaw wind erosion refers to the process in which temperature fluctuations cause changes in the surface structure, significantly impacting on the formation of surface landform and soil properties. However, due to the particularity and complexity of
Fujun NIU +4 more
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Spatial distribution of vegetation and soil properties on the Ulan Bator-Fengzhen transect on the Mongolian Plateau [PDF]
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Application of multiple InSAR techniques and SAR data from multi-sources to landslide deformation monitoring: A case study of the Zhixincun landslide in Jilin Province [PDF]
In order to realize effective monitoring of Zhixincun landslide, this paper selected 27 sentinel-1A data in 2017, and conducted deformation monitoring of Zhixincun landslide based on small baseline radar interferometry technology (SBAS-InSAR), and ...
Haiming YU +5 more
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Shuitu Baochi Xuebao, 2017 为了解不同植被类型及覆盖度对碎石土壤坡地养分流失途径的影响，采用模拟径流小区降雨，研究了6种植被配置模式下地表径流、壤中流及侵蚀泥沙氮、磷养分流失特征。结果表明：植被覆盖坡地氮流失量比裸地减少了0.91～4.60倍，磷流失量减少了6.25～63.9倍，养分控制效果排序为：草灌＞草本＞灌木＞裸地。6种植被配置下的地表径流、壤中流及侵蚀泥沙养分流失量存在显著差异：裸地氮、磷的主要损失途径是侵蚀泥沙，灌木是地表径流，草本与草灌结合处理则是地表径流和壤中流；而草本 ...
杜祥运, 王英琨
doaj
Responses of Loess Ground with Different Slopes and Vegetation Covers to Rainfall Infiltration [PDF]
[Objective] To investigate the soil moisture response to rainfall in loess ground with different slopes and vegetation types. [Methods] Eight in-situ observation plots were established, including flat surfaces with bare soil, Artemisia cover, and Robinia
HU Xiangyang +6 more
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Shuitu Baochi Xuebao[目的] 黄河流域是我国重要的生态保护屏障,但其生态环境脆弱,研究黄河流域植被变化与产水服务之间的关系,为其生态建设和高质量发展提供保障。[方法] 基于NDVI数据和InVEST模型,采用趋势分析和相关分析方法,将植被变化与水源供给服务相结合,对2001—2020年黄河流域NDVI与产水服务的时序变化和空间特征进行分析,研究NDVI与产水服务的趋势变化和相互关系。[结果] (1)黄河流域NDVI与产水深度均呈现增加趋势,增速分别为0.05 /10,18.215 mm/10 a,NDVI以明显增长为主 ...
闫奕飞 +4 more
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Characteristics of nitrogen and phosphorus losses with surface runoff in typical sub-watersheds of Jiulong River watershed. [PDF]
, 2004 选取九龙江流域5个典型汇水区,通过流域主要雨季天然降雨径流过程监测,对所获得的氮磷营养盐的监测数据进行归纳与分析,着重探讨了暴雨事件下径流氮磷流失及其形态的变化规律。结果表明:暴雨事件下农业汇水区地表径流氮输出以水溶态为主,磷以泥沙结合态为主,天然林地为主的汇水区则相反,前者以泥沙结合态为主,后者以水溶态为主;5个汇水区暴雨事件中总氮最高浓度值为日常采样浓度值的2.9～11.3倍,暴雨事件中总磷最高浓度值为日常采样浓度值的2.9～20.5倍;氮磷输出量均值的差异反映氮磷输出量大小受土壤质地、施肥量 ...
张珞平 +5 more
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Shuitu Baochi Xuebao, 2017 为了研究坡地总磷流失特征，探究植被覆盖和施肥对不同坡长坡地总磷流失的影响，以浙江省丘陵区坡面菜地红壤为研究对象，通过室内人工模拟降雨试验，在固定雨强120 mm/h、固定坡度20°、每场降雨试验的产流历时设计为30 min的条件下，选定不同坡长（1，2，3，4，5 m）、不同植被覆盖度（0，15%，30%，45%，60%，75%，90%）和不同施肥处理空白（CK）、无机复合肥（CF）、有机肥（OF）下进行模拟降雨试验。结果表明：（1）在不同施肥处理、坡长条件下，随着植被覆盖度的增加，单位投影面积总磷 ...
范晓娟 +4 more
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Shuitu Baochi Xuebao, 2000 影响水土流失的因素众则复杂，以福建省为研究区域，在闽西北，闽中，闽东，闽西南和闽东南５个地区共建立了４４２个样区，应用数量化理论Ⅰ，分析样区的土壤侵蚀强度与植被覆盖度，植被结构，土地利用类型，坡度，母岩类型和工程措施及有机质，质地，分用率和降雨侵蚀力Ｒ值等的关系，结果表明：影响福建省水土流失的主导因子为植被覆盖度、工程措施、降雨侵蚀力Ｒ值、土地利用类型，坡度和有机质６个主导因子，另外 ...
黄炎和 蔡志发
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Characteristics of geological hazard development and disaster-inducing environment of the MS6.2 earthquake in Jishishan, Gansu Province [PDF]
Objective The MS6.2 earthquake that struck Jishishan County, Gansu Province, on December 18, 2023, triggered a series of secondary geological disasters, including landslides, collapses, and debris flows.
HUANG Ting, LU Shiming, WU Zhonghai
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