|
|
|
|
|
Jingzhou Zhang, Shengtang Zhang, Si Chen, Ming Liu, Xuefeng Xu, Jiansen Zhou, Wenjun Wang, Lijun Ma and Chuantao Wang
To explore the characteristics of overland flow resistance under the condition of sparse vegetative stem coverage and improve the basic theoretical research of overland flow, the resistance characteristics of overland flow were systematically investigate...
ver más
|
|
|
|
|
|
|
|
|
|
|
Afzal Ahmed, Manousos Valyrakis, Abdul Razzaq Ghumman, Rashid Farooq, Ghufran Ahmed Pasha, Shahmir Janjua and Ali Raza
This study examines the impact of upstream structures on the bulk drag coefficient of vegetation through experimental means, which has not been previously conducted. An embankment model was placed upstream of the vegetation, both with and without a moat/...
ver más
|
|
|
|
|
|
|
|
|
|
|
Sadegh Derakhshan, Esmaeil Dodangeh, Hossein Afzalimehr, Mohammad Nazari-Sharabian, Hamidreza Raeisifar and Moses Karakouzian
Aquatic vegetation plays a critical role in aquatic environments and provides various valuable services. To characterize vegetation, vegetation density and flexibility are usually used as parameters, but aquatic vegetation found in nature may have a non-...
ver más
|
|
|
|
|
|
|
|
|
|
|
Lei Jiang and Ziyue Zeng
Since the impoundment of the Three Gorges Project, the downstream hydrology and river dynamics have been modified. The Yichang?Chenglingji Reach (YCR), as a part of the mainstream of the Middle Yangtze River, has consequently been significantly scoured, ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Norio Tanaka, Yoshiya Igarashi and Takehito Zaha
As a mitigation measure against a tsunami inundation, vegetation-embankment hybrid structures received attention after the 2011 Great East Japan Tsunami, and some structures have already been constructed or are under construction in Japan. The present st...
ver más
|
|
|
|
|
|
|
|
|
|
|
Filippo Bussotti and Martina Pollastrini
Climate change and extreme drought and heat events impact the Mediterranean evergreen sclerophyllous vegetation in South Europe, especially in Iberian and Italian peninsula, where widespread crown defoliation and dieback have been observed since the 90s ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shujun Zhao, Yuanlai Cui, Yufeng Luo, Peifeng Li
Pág. 1 - 12
Small vegetated drainage ditches play an important role in water and nutrient removal, but may cause water blocking problems. The aim of this study was to investigate vegetated drainage ditches? hydraulic and wetland hydraulic characters. Field experimen...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shujun Zhao, Yuanlai Cui, Yufeng Luo and Peifeng Li
Small vegetated drainage ditches play an important role in water and nutrient removal, but may cause water blocking problems. The aim of this study was to investigate vegetated drainage ditches? hydraulic and wetland hydraulic characters. Field experimen...
ver más
|
|
|
|
|
|
|
|
|
|
|
Johanna Jalonen, Juha Järvelä, Juho-Pekka Virtanen, Matti Vaaja, Matti Kurkela and Hannu Hyyppä
Detailed modeling of floodplain flows and associated processes requires data on mixed, heterogeneous vegetation at river reach scale, though the collection of vegetation data is typically limited in resolution or lack spatial information. This study inve...
ver más
|
|
|
|
|
|
|
|
|
|
|
Annika K. Jägerbrand and Juha M. Alatalo
This study focused on identifying vegetation characteristics associated with erosion control at nine roadside sites in mid-West Sweden. A number of vegetation characteristics such as cover, diversity, plant functional type, biomass and plant community st...
ver más
|
|
|
|
|
|
|
|
|
|
|
Babette Scheres and Holger Schüttrumpf
Dense grass covers are generally recommended for surface protection of sea dikes against mild and moderate hydraulic loads. The standard seeding mixtures were composed to meet the technical requirements and ensure dike safety. These mixtures are, however...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shengchun Tong, Guorong Li, Jinfang Li, Xilai Li, Chengdong Jiang, Jianyun Zhao, Haili Zhu, Yabin Liu, Wenting Chen and Xiasong Hu
The plateau pika (Ochotona curzoniae) actively contributes to soil erosion and meadow degradation in western China?s Yellow River source zone. This study aimed to elucidate the effects of the pika mound numbers on the hydrodynamic characteristics and soi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhengbing Chen, Jianyin Zhou and Qianhai Chen
The roughness coefficient is a comprehensive parameter reflecting river resistance, which is widely used in the planning and design of river regulation and flood control projects. In recent years, as the upstream water conservancy and hydro-power project...
ver más
|
|
|
|
|
|
|
|
|
|
|
Olena Slavinska,?natolii Tsynka,Iryna Bashkevych
Pág. 75 - 87
To develop the methods for predicting deformations on floodplain areas in the zone of influence of bridge crossings, a mathematical model of a suspended flow with grass vegetation was developed. The problem of calculating the hydrodynamic fields of veloc...
ver más
|
|
|
|
|
|
|
|
|
|
|
Pawel Radzikowski, Krzysztof Jonczyk, Beata Feledyn-Szewczyk and Tomasz Józwicki
A change in agricultural policy in the European Union aims, among other things, to halve the use of pesticides and increase the share of organic farming to 25% by 2030. One of the challenges associated with this target will be the control of plant fungal...
ver más
|
|
|
|
|
|
|
|
|
|
|
Nellie Tumel and Larisa Zotova
The diagnosis of the geoecological state of natural landscapes during the economic development of the permafrost zone should be established by assessing destructive cryogenic processes. Furthermore, the geoecological state should be considered in terms o...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zezhuo Song, Jin Liu, Yuxia Bai, Jihong Wei, Ding Li, Qiongya Wang, Zhihao Chen, Debi Prasanna Kanungo and Wei Qian
Soil stabilizer can enhance the soil properties, which can improve ecological environmental problems such as soil erosion and slope instability. This study investigates the water-related and mechanical properties of soil stabilization using a polymer soi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jin-Fu Li, Samkele S. Tfwala and Su-Chin Chen
Understanding the effects of riparian vegetation under sediment-laden flow is becoming crucial due to the increase in frequency of extreme weather events. This study designed three densities and nine random distributions of bent flexible vegetation in fl...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ludovic Cassan, Hélène Roux, Pierre-André Garambois
Pág. 1 - 18
A friction model resulting from investigations into macro-roughness elements in fishways has been compared with a broad range of studies in the literature under very different bed configurations. In the context of flood modelling or aquatic habitats, the...
ver más
|
|
|
|
|
|
|
|
|
|
|
Joseph M. Marschall, Michael C. Stambaugh, Benjamin C. Jones, Richard P. Guyette, Patrick H. Brose and Daniel C. Dey
Many fire-adapted ecosystems in the northeastern U.S. are converting to fire-intolerant vegetation communities due to fire suppression in the 20th century. Prescribed fire and other vegetation management activities that increase resilience and resistance...
ver más
|
|
|
|
|
|