2011 International Symposium on Water Resource and Environmental Protection最新文献_第2页

Brittleness structure of ecological harmonious urban system 生态和谐城市系统的脆性结构

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893397

Wu Wei, W. Xuan

引用次数: 0

Modeling the health impacts of air pollution exposures in London within the GENESIS system 在GENESIS系统内模拟伦敦空气污染暴露对健康的影响

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893737

Yang Wang, J. Gulliver, C. McHugh

引用次数: 5

Numerical simulation of sediment transport in Bohai Bay 渤海湾泥沙输移的数值模拟

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893184

Ya-ping Wang, D. Yuan, Hongtao Nie

引用次数: 2

Counting methodologies of Greenhouse Gases (GHG) emission in highway life cycle 公路生命周期温室气体排放计算方法研究

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893717

Xinghua Li, Jianchang Liu, Honglei Xu, P. Zhong, Xuewen Zheng, Fan Zhang, Jianxun Zhao

引用次数: 1

Research on Land use change of Xuchang City based on RS and GIS 基于RS和GIS的许昌市土地利用变化研究

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893370

G. Wu, Chun-cai Pan, Huaifei Shen

引用次数: 0

Response of P and its correlative factors to products of Environmental Degradable Mulch Film in soil 土壤中磷及其相关因子对环境可降解地膜产物的响应

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893353

Jing He, X. Luo

{"title":"Response of P and its correlative factors to products of Environmental Degradable Mulch Film in soil","authors":"Jing He, X. Luo","doi":"10.1109/ISWREP.2011.5893353","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893353","url":null,"abstract":"The common plastic film mulching technology causes a series of environmental issues while it controls or increases soil temperature and maintain soil humidity to increase crop yields and improve produce. The new pattern of plastic mulch film, it's called “Environmental Degradable Mulch Film” (EDMF), which successfully achieves degradation of appearance from pieces to powders. Therefore the effect of polyethylene powder products of EDMF on physical property and chemical property of soil becomes new hotspot of discussion. This study made use of four kinds of molecular weight to simulate polyethylene powder products of EDMF as soil additive of potted soybean, tested total P, efficient P, organic matter, acid phosphatase of soil in soybean developmental periods. The results showed that the total P content of experimental groups which added polyethylene powder products of EDMF were lower than control group, and the max decrement was 25.5%; efficient P content, organic matter content and acid phosphatase activity had no significant differences between experimental groups and control group in soil, and there were relativity among all of them. Efficient P and acid phosphatase activity, efficient P and organic matter were significant positive correlation (R=0.9982 R=0.9985); organic matter and acid phosphatase were negative correlation (R=-0.9966). The polyethylene powder products of EDMF have no significant effects on efficient P, organic matter and acid phosphatase in soil, whereas there are a little effect on speed total P consumption.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":"140 1","pages":"1640-1644"},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77703520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of kinematic wave model to calculate “rainfall-runoff” process at hilly-gully region in the Loess Plateau, China 运动波模型在黄土高原丘陵沟壑区“降雨-径流”过程计算中的应用

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893034

Huang Jin-bai, Bin Wang, H. Osamu, K. Yuki

引用次数: 1

The nutrients in the fertile water from fish pond assimilated and utilized by paddy field 鱼塘肥水中的养分被水田吸收利用

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893434

Yuan Zhou, Jian-qiang Zhu, Gu Li

{"title":"The nutrients in the fertile water from fish pond assimilated and utilized by paddy field","authors":"Yuan Zhou, Jian-qiang Zhu, Gu Li","doi":"10.1109/ISWREP.2011.5893434","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893434","url":null,"abstract":"Wastewater from aquiculture sometimes is called fertile water for plants because it contains useful ingredients such as nitrogen and phosphorus. In order to realize zero-discharge of wastewater from aquiculture, a field experiment was done that aquiculture water (fertile water for plants) from fish pond was applied to irrigate paddy field. The results showed that: 1) paddy field has an obvious effect on removal of some ingredients contained in irrigation water from fish pond, especially for NO3--N and TP. When aquiculture water stranded in the paddy field for more than 8 hours, the nutrient in it may be assimilated by paddy field 65.23% for TN, 71.97% for TP, 87.28% for NO3--N, 66.84% for NH4+-N and 51.06% for CODMn. 2) when aquiculture water entered to the field and contacted with soil surface and plants, the various forms of nitrogen adsorbed is more than that of the TP and CODMn, in which the NH4+-N and NO3--N adsorbed reach up to 49.92% and 41.78% respectively; when aquiculture water penetrates the soil, the absorption is 45.51% for TP, 35.63% for CODMn and 37.36% for NO3--N. 3) using fertile water from fish pond to irrigate paddy field, an output of rice may get to more than 9000 kg/hm2 under 80% of the conventional fertilizer dosage which means fertilizer-saving 20% in contrast to the local conventional fertilizer use, and get to 7950 kg/hm2 without fertilizer that undoubtedly is the most economical and friendly to environment.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":"14 1","pages":"2695-2698"},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79240420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Rethinking of “green design” and “environmental protection” 对“绿色设计”与“环境保护”的再思考

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893721

Li Hengli, Liu Baoshun

引用次数: 1

Agricultural precipitation and thermal resources use efficiency and potential resources management measures in the context of global climate change in Northeast China 全球气候变化背景下东北地区农业降水和热资源利用效率及资源管理对策

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893750

Bilin Xiao, Wenlai Jiang, Daolong Wang, Yinjun Chen, J. Chen

{"title":"Agricultural precipitation and thermal resources use efficiency and potential resources management measures in the context of global climate change in Northeast China","authors":"Bilin Xiao, Wenlai Jiang, Daolong Wang, Yinjun Chen, J. Chen","doi":"10.1109/ISWREP.2011.5893750","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893750","url":null,"abstract":"Northeast China is one of the most important regions for food production in China, with its cropping system being significantly affected by the climate change and vulnerable with water and heat stress. For annual harvest in Northeast China, agricultural precipitation and thermal resources were the primary environmental factors for crops growth from May to September. Therefore, its temporal and spatial change, distribution and use efficiency become important to the crops growth. We choose annual mean precipitation (AP) and annual accumulated temperature 10°C (AAT10) in the growing season to represent the water and thermal resources. And we use Agricultural Precipitation Resources Use Efficiency (APUE) and Agricultural Thermal Resources Use Efficiency (ATUE) to reflect the water and heat utilization. The results showed that 1) AAT10 increased slightly from 1971 to 2006 with distribution of decreased from southwest to northeast, AP trends was decreased and with regional variation that concentrated on the southeast of Northeast China, 2) APUE was 6.6-6.8 kg/mm · hm2 higher than the national level (5.25 kg/mm · hm2) and lower than the world level (7-7.8 kg/mm · hm2). ATUE was 1.13-1.72 kg/hm2 · d · °C, which was higher than the national level, 3) Annual mean precipitation and thermal resources use efficiency in growing season was not distribute as the natural resources distributed which meant the potential of water and heat use was not insufficient. We propose the potential resources measures as follows: 1) Prevented chilling damage and be fit for the temperature increased and make water conservation, 2) Choosing systematic irrigation management measures according to water spatial and temporal allocated changed, 3) Improving the multiply cold and arid tolerance varieties technology and adjusting crops planting structure and varieties distribution to adapt climate change impacts.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":"409 1","pages":"2393-2398"},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84875746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2