Overview of Measures and Assessment of Capacity for Flood Prevention and Drought Relief

Author(s):  
Zhixiong Ding ◽  
Xuejun Zhang ◽  
Song Han ◽  
Hui Liu
1935 ◽  
Vol 4 (21) ◽  
pp. 164-168
Author(s):  
Edward T. Lockwood
Keyword(s):  

Author(s):  
Matheus Souisa ◽  
Paulus R. Atihuta ◽  
Josephus R. Kelibulin

Ambon City is a region consisting of hilly areas and steep slopes with diverse river characteristics. Research has been carried out in the Wae Ruhu watershed in Ambon City which starts from upstream (water catchment) to downstream. This study aims to determine the magnitude of river discharge and sediment discharge in the Wae Ruhu watershed. This research was conducted in several stages including, secondary data collection, research location survey, preparation of research tools and materials as well as field data retrieval processes which included tracking coordinates at each station point and entire watershed, calculation of river flow velocity, river geometry measurements, and sampling sediment. The results showed that the average river discharge in the Wae watershed in the year 2018 was 1.24 m3 / s, and the average sediment discharge was 6.27 kg / s. From the results of this study and the field observations proposed for flood prevention and the rate of sediment movement are the construction of cliffs with sheet pile and gabions.


1984 ◽  
Vol 16 (3-4) ◽  
pp. 477-484
Author(s):  
H L Wakeling

The paper reviews various methods of flood control in the lower Yare Basin which has been subject to serious flooding caused by storm surges in the North Sea and by fluvial floods. This area is known as the Broads and is an area of scenic beauty, includes many sites of scientific interest and is a popular tourist area. The effects of the different flood control options on the environment are discussed. The primary economic justification for flood prevention was found to arise from the conversion of poor quality marsh grazing land to arable or improved pasture once the risk of saline flooding was removed. The consequences of this change in land use on the flora and fauna have aroused much concern among environmentalists.


2021 ◽  
Vol 32 ◽  
pp. 100289
Author(s):  
Thomas van der Pol ◽  
Jochen Hinkel ◽  
Jan Merkens ◽  
Leigh MacPherson ◽  
Athanasios T. Vafeidis ◽  
...  

2021 ◽  
Author(s):  
Sheng-Nan Ouyang ◽  
Arthur Gessler ◽  
Matthias Saurer ◽  
Frank Hagedorn ◽  
De-Cai Gao ◽  
...  

Abstract The role of carbon (C) and nutrient uptake, allocation, storage and especially their interactions in survival and recovery of trees under increased frequencies and intensities of drought events is not well understood. A full factorial experiment with four soil water content regimes ranging from extreme drought to well-watered conditions and two fertilization levels was carried out. We aimed to investigate whether nutrient addition mitigates drought effects on downy oak (Quercus pubescens Willd.) and whether storage pools of non-structural carbohydrates (NSC) are modified to enhance survival after 2.5 years of drought and recovery after drought relief. Physiological traits, such as photosynthesis, predawn leaf water potential as well as tissue biomass together with pools and dynamics of NSC and nutrients at the whole-tree level were investigated. Our results showed that fertilization played a minor role in saplings’ physiological processes to cope with drought and drought relief, but reduced sapling mortality during extreme drought. Irrespective of nutrient supply, Q. pubescens showed increased soluble sugar concentration in all tissues with increasing drought intensity, mostly because of starch degradation. After 28 days of drought relief, tissue sugar concentrations decreased, reaching comparable values to those of well-watered plants. Only during the recovery process from extreme drought, root NSC concentration strongly declined, leading to an almost complete NSC depletion after 28 days of rewetting, simultaneously with new leaves flushing. These findings suggest that extreme drought can lead to root C exhaustion. After drought relief, the repair and regrowth of organs can even exacerbate the root C depletion. We concluded that under future climate conditions with repeated drought events, the insufficient and lagged C replenishment in roots might eventually lead to C starvation and further mortality.


2013 ◽  
Vol 17 (2) ◽  
pp. 103-114 ◽  
Author(s):  
Andrea Butcher

In August 2010 the Himalayan Region of Ladakh, Northwest India, experienced severe flash-flooding and mudslides, causing widespread death and destruction. The causes cited were climate change, karmic retribution, and the wrath of an agentive sentient landscape. Ladakhis construct, order and maintain the physical and moral universe through religious engagement with this landscape. The Buddhist monastic incumbents—the traditional mediators between the human world and the sentient landscape—explain supernatural retribution as the result of karmic demerit that requires ritual intervention. Social, economic, and material transformations have distorted the proper order, generating a physically and morally unfamiliar landscape. As a result, the mountain deities that act as guardians and protectors of the land below are confused and angry, sending destructive water to show their displeasure. Thus, the locally-contextualized response demonstrates the agency of the mountain gods in establishing a moral universe whereby water can give life and destroy it.


Sign in / Sign up

Export Citation Format

Share Document