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Ecological Risk Assessment of Typical Plateau Lakes
E3S Web of Conferences 267, 01028 (2021) https://doi.org/10.1051/e3sconf/202126701028 ICESCE 2021 Ecological Risk Assessment of Typical Plateau Lakes Yuyadong1.2*, Yankun2 1.School of Ecology and Environmental Science Yunnan University, China 2.The Ecological and Environmental Monitoring Station of DEEY in Kunming, China Abstract. Plateau lakes have significant ecological value. With economic development, lake pollution and ecological degradation have become increasingly prominent. There are many ecological risk assessment methods. This article combines four different ecological risk assessment methods including single-factor pollution index, geological accumulation index method, potential risk index method, and pollution load index method to analyze the heavy metal pollution in Yangzong seabed mud as comprehensively as possible. It shows that the results obtained by different ecological risk assessment methods are slightly different. The overall trends of the geological pollution index and the single-factor pollution index are similar. In terms of time, except for the two elements of mercury and cadmium, the contents of other heavy metals in 2019 are lower than in 2018, indicating that heavy metal pollution has decreased in 2019; from the perspective of spatial distribution, In 2018, the overall pollution level on the south side of Yangzonghai was higher than that in the central and northern regions of Yangzonghai . On the whole, whether it is the potential risk index or the appropriate pollution load index, the pollution level on the south side of Yangzonghai is higher than that in the central and northern areas of Yangzonghai, and the northern area has the least pollution. ecosystems is relatively reduced, which makes the economic development of plateau lake basins face severe 1 Introduction challenges. -
Uganda and Rwanda: Shoebill Experience, Nyungwe’S Albertine Rift and Great Apes
MEGAFARI: Uganda and Rwanda: Shoebill experience, Nyungwe’s Albertine Rift and Great Apes 16 – 27 April 2010 (12 days), Leader: Keith Barnes, Custom trip Photos by Keith Barnes. All photos taken on this trip. The spectacular Shoebill was the star of the show in Uganda, and a much-wanted species by all. Introduction This was the second leg of the Megafari – a true trip of a lifetime for most of the participants. Our Tanzania leg had already been the most successful trip we had ever had, netting an incredible 426 bird species in only 11 days. The main aims of the Uganda and Rwanda leg was to see a Shoebill stalking in deep Papyrus swamps, score a gamut of rainforest birds in both the lowlands of Budongo and then also the impressive montane forests of the incredible Nyungwe NP, and to see primates and of course, the irrepressible great apes, Chimpanzee and Mountain Gorilla. Fortunately, we achieved all these aims, netting 417 bird species on this 12-day leg of the trip, as well as accumulating an incredible 675 bird species and 62 mammals in just over three-weeks of the Megafari. The Megafari was a boon for spectacular birds and we saw 51 species of bird of prey, 11 species of turaco, 11 species of kingfisher, 10 species of bee-eater, 12 species of hornbill, and 25 species of sunbird. We also saw the famous Big-5 mammals and had incredible encounters with Mountain Gorillas and Chimpanzees amongst 11 species of primates. For the extremely successful Tanzania portion of the tour, click here. -
Effects of Habitat Disturbance on Distribution and Abundance Of
EFFECTS OF HABITAT DISTURBANCE ON DISTRIBUTION AND ABUNDANCE OF PAPYRUS ENDEMIC BIRDS IN SIO PORT SWAMP, WESTERN KENYA By Stellah Nekesa Wanyonyi (B.Ed Science, Nairobi) (Reg. No. I56/80824/2012) A Thesis Submitted in Partial Fulfilment of the Requirements for the Award of the Degree of Master of Science (Biology of Conservation) in the School of Biological Sciences, UNIVERSITY OF NAIROBI May 2015 i DECLARATION I declare that this thesis is my original work and has not been submitted for examination in any other University for the award of a degree. ________________________________ _______________________ Stellah Nekesa Wanyonyi Date (Reg. No. I56/80824/2012) SUPERVISORS This thesis has been submitted for examination with our approval as the university supervisors. ________________________________ _______________________ Dr. Evans Mwangi Date School of Biological Sciences, University of Nairobi ________________________________ _______________________ Prof. Nathan Gichuki Date School of Biological Sciences, University of Nairobi ii DEDICATION This thesis is dedicated to my family and the community in Sio Port swamp. iii ACKNOWLEDGEMENTS I wish to sincerely thank my supervisors; Dr. Evans Mwangi, Prof. Nathan Gichuki and Prof. Agnes Muthumbi for their effort and time to share knowledge with me. I would also like to thank the following: Mr. Martin Odino from National Museums of Kenya for working as my research assistant throughout the research period; Mr. Mutiso the plant identification specialist at the University of Nairobi Herbarium for assisting in the identification of plant specimens collected from Sio Port Swamp; Mr. Elisha Were for offering a camping site and taking me around the swamp in a canoe; Sio Port Community at large for their warm welcome. -
Pangani Basin: a Situation Analysis
Pangani Basin: A Situation Analysis IUCN Eastern Africa Programme 2003 i Published by: Copyright: © 2003 International Union for Conservation of Nature and Natural Resources This publication may be produced in whole or part and in any form for education or non-profit uses, without special permission from the copyright holder, provided acknowledgement of the source is made. IUCN would appreciate receiving a copy of any publication which uses this publication as a source. No use of this publication may be made for resale or other commercial purpose without the prior written permission of IUCN. Citation: IUCN Eastern Africa Programme, 2003. The Pangani River Basin: A Situation Analysis, xvi + 104pp. ISBN: 2-8317-0760-9 Design and layout: Gordon O. Arara Printed by: ScanHouse Press Ltd. Photo 1: The summit of Mount Kilimanjaro; Photo 2: Forest stand at 1 Shire Njoro; Photo 3: Gate controlling the release of water into irrigation furrows; Photo 4: Children swimming in an irrigation 3 4 reservoir; Photo 5: Sisal plantations; Photo 6: Irrigated rice scheme; 2 Photo 7: Water gauging station at Chemka Spring; Photo 8: Vandalized gate controlling the release of water into irrigation furrows; Photo 9: 5 Dam wall at Nyumba ya Mungu Reservoir (color changes mark the declining water levels); Photo 10: A vendor sells water from a borehole 6 9 10 Photos 1, 3, 5, 6, 8, 9 copyright 2003 Kelly West; Photos 2, 7 7 8 copyright 2002 Kim Geheb; Photos 4, 10 copyright 2003 Ger Bergkamp. Available from: IUCN- EARO Publications Service Unit, P. O. Box 68200 - 00200, Nairobi, Kenya; Telephone ++ 254 20 890605-12; Fax ++ 254 20 890615; E-mail: [email protected] The designations of geographical entities in this book, and the presentation of the material, do not imply the expression of any opinion whatsoever on the part of the participating organiza- tions concerning the legal status of any country, territory, or area, or of its authorities, or con- cerning the delimitation of its frontiers or boundaries. -
Water Resource Risk Assessment Based on Non-Point Source Pollution
water Article Water Resource Risk Assessment Based on Non-Point Source Pollution Xiaodie Yuan and Zhang Jun * School of Architecture and Planning, Yunnan University, Kunming 650500, China; [email protected] * Correspondence: [email protected] Abstract: As one of the most important causes of water quality deterioration, NPS (non-point source) pollution has become an urgent environmental and livelihood issue. To date, there have been only a few studies focusing on NPS pollution conforming to the estimation, and the pollution sources are mainly concentrated in nitrogen and phosphorus nutrients. Unlike studies that only consider the intensity of nitrogen and phosphorus loads, the NPS pollution risk for the China’s Fuxian Lake Basin was evaluated in this study by using IECM (Improve Export Coefficient Model) and RUSLE (Revised Universal Soil Loss Equation) models to estimate nitrogen and phosphorus loads and soil loss and by using a multi-factor NPS pollution risk assessment index established on the basis of the data mentioned above. First, the results showed that the load intensity of nitrogen and phosphorus pollution in the Fuxian Lake Basin is low, so agricultural production and life are important sources of pollution. Second, the soil loss degree of erosion in the Fuxian Lake is mild, so topography is one of the most important factors affecting soil erosion. Third, the risk of NPS pollution in the Fuxian Lake Basin is at a medium level and its spatial distribution characteristics are similar to the intensity characteristics of nitrogen and phosphorus loss. Nitrogen, phosphorus, sediment, and mean concentrations are important factors affecting NPS pollution. -
Bird Checklists of the World Country Or Region: Ghana
Avibase Page 1of 24 Col Location Date Start time Duration Distance Avibase - Bird Checklists of the World 1 Country or region: Ghana 2 Number of species: 773 3 Number of endemics: 0 4 Number of breeding endemics: 0 5 Number of globally threatened species: 26 6 Number of extinct species: 0 7 Number of introduced species: 1 8 Date last reviewed: 2019-11-10 9 10 Recommended citation: Lepage, D. 2021. Checklist of the birds of Ghana. Avibase, the world bird database. Retrieved from .https://avibase.bsc-eoc.org/checklist.jsp?lang=EN®ion=gh [26/09/2021]. Make your observations count! Submit your data to ebird. -
Supplement of a Systematic Examination of the Relationships Between CDOM and DOC in Inland Waters in China
Supplement of Hydrol. Earth Syst. Sci., 21, 5127–5141, 2017 https://doi.org/10.5194/hess-21-5127-2017-supplement © Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License. Supplement of A systematic examination of the relationships between CDOM and DOC in inland waters in China Kaishan Song et al. Correspondence to: Kaishan Song ([email protected]) The copyright of individual parts of the supplement might differ from the CC BY 3.0 License. Figure S1. Sampling location at three rivers for tracing the temporal variation of CDOM and DOC. The average widths at sampling stations are about 1020 m, 206m and 152 m for the Songhua River, Hunjiang River and Yalu River, respectively. Table S1 the sampling information for fresh and saline water lakes, the location information shows the central positions of the lakes. Res. is the abbreviation for reservoir; N, numbers of samples collected; Lat., latitude; Long., longitude; A, area; L, maximum length in kilometer; W, maximum width in kilometer. Water body type Sampling date N Lat. Long. A(km2) L (km) W (km) Fresh water lake Shitoukou Res. 2009.08.28 10 43.9319 125.7472 59 17 6 Songhua Lake 2015.04.29 8 43.6146 126.9492 185 55 6 Erlong Lake 2011.06.24 6 43.1785 124.8264 98 29 8 Xinlicheng Res. 2011.06.13 7 43.6300 125.3400 43 22 6 Yueliang Lake 2011.09.01 6 45.7250 123.8667 116 15 15 Nierji Res. 2015.09.16 8 48.6073 124.5693 436 83 26 Shankou Res. -
Acknowledgements
Acknowledgements First of all, I sincerely thank all the people I met in Lisbon that helped me to finish this Master thesis. Foremost I am deeply grateful to my supervisor --- Prof. Ana Estela Barbosa from LNEC, for her life caring, and academic guidance for me. This paper will be completed under her guidance that helped me in all the time of research and writing of the paper, also. Her profound knowledge, rigorous attitude, high sense of responsibility and patience benefited me a lot in my life. Second of all, I'd like to thank my Chinese promoter professor Xu Wenbin, for his encouragement and concern with me. Without his consent, I could not have this opportunity to study abroad. My sincere thanks also goes to Prof. João Alfredo Santos for his giving me some Portuguese skill, and teacher Miss Susana for her settling me down and providing me a beautiful campus to live and study, and giving me a lot of supports such as helping me to successfully complete my visa prolonging. Many thanks go to my new friends in Lisbon, for patiently answering all of my questions and helping me to solve different kinds of difficulties in the study and life. The list is not ranked and they include: Angola Angolano, Garson Wong, Kai Lee, David Rajnoch, Catarina Paulo, Gonçalo Oliveira, Ondra Dohnálek, Lu Ye, Le Bo, Valentino Ho, Chancy Chen, André Maia, Takuma Sato, Eric Won, Paulo Henrique Zanin, João Pestana and so on. This thesis is dedicated to my parents who have given me the opportunity of studying abroad and support throughout my life. -
Birds and Mammals of Rwanda's National Parks
Rwanda Birds and mammals of Rwanda’s National Parks Rwanda is quite small, covering an area of around one fifth the size of England. Despite its small size the country is blessed with extensive areas of forest, lakes and swamps which in turn attract a wide species of birds and mammals. Rwanda is a wonderful destination for wildlife tourism and an excellent location to watch Mountain Gorillas. Our tour visits Akagera National Park, which has a mix of wetlands and forest, and the bird-rich Nyungwe Forest National Park. We expect to see almost 25 of the range-restricted Albertine Rift endemics. Birding within Rwanda is still in its infancy and this tour could well bring a few surprise species within the extensive forest systems. Days 1-2: We have a flight to Kigali the capital of Rwanda with arrival on Day 2. Dates Transfer to Akagera National Park in east- Saturday January 15th – Thursday ern Rwanda which is close to the border January 27th 2022 with Tanzania. En route we should Leader: Harriet Kemishiga and local encounter the commoner birds of the coun- guides tryside, including Hamerkop, African Group Size: 8 Sacred and Hadada Ibis, Augur Buzzard, Birds: 300-350 Long-crested Eagle, and Village, Black- headed and Vieillot’s Black Weavers. The journey passes through large tracts of agri- chance of locating Black-chested, Brown cultural areas where Grey-backed Fiscal and Western Banded Snake Eagles, White- resides, whilst patches of marsh and reeds headed Vulture, Ross’s Turaco, Black-col- attract Fan-tailed Widowbird and lared and Red-faced Barbets, Bennett’s Carruther’s Cisticola. -
Senegal and Gambia
BIRDING AFRICA THE AFRICA SPECIALISTS Senegal and Gambia 2019 Tour Report Vinaceous Black-faced Firefi nch Text by tour leader Michael Mills Photos by Gus Mills SUMMARY ESSENTIAL DETAILS Our first trip to Senegal and Gambia was highly successful and netted a Dates 16 Jan: Full day in the Kedougou area seeing Mali good selection of localised and rarely-seen specials. For this private trip we Firefinch.. ran a flexible itinerary to target a small selection of tricky species. In Senegal 11-23 January 2019 17 Jan: Early departure from Kedougou. Lunch Savile's Bustard was the last African bustard for the entire party, and was at Wassadou Camp. Evening boat trip on Gambia Birding Africa Tour Report Tour Africa Birding seen well both at the Marigots and in the Kaolack area. Other Senegalese Leaders River with Adamawa Turtle Dove and Egyptian Report Tour Africa Birding Plover.. highlights included Western Red-billed Hornbill, Sahel Paradise Whydah Michael Mills assisted by Solomon Jallow in full breeding plumage, Little Grey Woodpecker, Mali Firefinch, Egyptian 18 Jan: Morning at Wassadou Camp, before driving to Gambia. Afternoon around Bansang with Plover and African Finfoot. Large numbers of waterbirds at Djoudj and the Participants Exclamatory Paradise Whydah in full plumage. Marigots were memorable too. Julian Francis and Gus Mills 19 Jan: Early departure from Bansang, driving to Tendaba for lunch via north bank. Afternoon at Tendaba seeing Bronze-winged Courser. Itinerary 20 Jan: Early morning on the Bateling Track seeing 11 Jan: Dakar to St Louis. Afternoon at the Marigots, Yellow Penduline Tit, White-fronted Black Chat, hearing Savile's Bustard. -
The Countermeasure Research of Sustainable Development in the Fuxian Lake Basin
2021 4th International Conference on Interdisciplinary Social Sciences & Humanities (SOSHU 2021) The Countermeasure Research of Sustainable Development in the Fuxian Lake Basin Qingjuan Meng, Guangzhou Zhao, Yong Tang, Yuanlin Hu, Jie Li, Hongzhe Zhang, Zhifang Chen, Junjie Li, Zhenhua Song, Hailong Wang, Youlin Zhang Oxbridge College, Kunming University of Science and Technology, Kunming, Yunnan, China, 650106 Keywords: The Countermeasure, Research of Sustainable Development, Fuxian Lake Abstract: The sustainable development of the Fuxian Lake Basin aims to maintain the sound and sustainable development of mountains, rivers, forests, croplands, lakes, and grasses in the basin and to coordinate the relationship of society, economy, environment, production, life, and ecological water utilization so that social economy in the basin can adapt to the carrying capacity of water resource environment to determine needs and development with rivers. Development is conducting in protection while protection is implementing in development, so as to strongly develop the circular economy. On the basis of the water environmental transition in the Fuxian Lake, this thesis analyzed the developmental status and existing problems of the Fuxian Lake Basin and put forward countermeasures from four aspects including ecological development, economic development, social development, and scientific development, hoping to provide theoretical support and practical experience of the sustainable development research for plateau lakes. The Fuxian Lake is situated in Yuxi City, Yunnan Province. It is the deep-water freshwater lake with the greatest water storage and also the only high-quality freshwater lake of China. The Fuxian Lake steps over Chengjiang, Jiangchuan, and Huaning, situated in the central part of five lakes(the Fuxian Lake, the Xingyun Lake, the Qilu Lake, Yangzong Lake, and Dianchi)(Figure 1). -
7. CET-Kunming
7. CET-Kunming a. Ken Tanaka, Summer 2019 Final Report Introduction A good amount of Yalies on the Light Fellowship probably won't consider studying in Kunming. Some might not even know that Kunming exists. Others might think that Kunming, a city with a measly population of 6.2 million in far-off Yunnan province, isn't as fun to spend the summer at in comparison to glitzy Shanghai or iconic Beijing. Yet some more students might automatically choose a program like HBA - after all, HBA is abound with Yale students, and who wouldn't want to spend some time in China with people you already know from school? If you don't consider Kunming as a potential place to study at, I'm going to keep it real with you and say that you're making a big mistake. Choosing to study Chinese through CET-Kunming has been one of the greatest experiences of my college time, and I believe that CET-Kunming, while perhaps not as renown as PiB, HBA, or ICLP, is truly a hidden gem. My name is Ken Tanaka, and I'm a current junior (class of 2021) majoring in Global Affairs. I took a year of Chinese my junior year of high school (equivalent to L1 here), and then took CHNS120, CHNS 130, and CHNS140 my freshman spring through my sophomore spring. As I was not a freshman when considering studying abroad in China, I will admit that I was a little bit hesitant at first when considering study abroad - after all, many of my peers were applying for internships.