2011 International Symposium on Water Resource and Environmental Protection最新文献_第3页

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

Biogeochemistry characteristics of nitrogen in unsaturated soils of Jinghuiqu irrigation district 井水渠灌区非饱和土壤氮的生物地球化学特征

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893170

Xiuhua Liu, Lin Li, Zhi Wang

{"title":"Biogeochemistry characteristics of nitrogen in unsaturated soils of Jinghuiqu irrigation district","authors":"Xiuhua Liu, Lin Li, Zhi Wang","doi":"10.1109/ISWREP.2011.5893170","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893170","url":null,"abstract":"Biogeochemistry characteristics of an unsaturated zone in Jinghuiqu irrigation district of China was studied to analyze the predominant interacting factors of nitrogen concentration and transformation in the vadose zone under long term flood irrigation using river water and groundwater sources alternatively. The site was instrumented for soil sampling at various depths above the groundwater table at 4 meters below the soil surface. The measured concentrations of the biogeochemicals (TN, N-NO3-, N-NH4+, and several microorganisms) showed that there exist “active” and “inactive” layers in the profile, which were distinguished by the combined amount of clay and silt particles in the soil. Most parameter values increase sharply in the “active” layers and decrease sharply in the “inactive” layers. In the active zone, the N-NO3- was concentrated and more transformed by microorganisms. All the N concentrations, in NNO3-, N-NH4+ and TN, were mainly affected by the amounts of organic matter and microorganisms.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":"321 1","pages":"959-962"},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85975043","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: 4

Effect of artificial aquifer recharge on hydraulic conductivity using single injection well 单注井人工补给含水层对水力导电性的影响

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893680

Yanhui Dong, Pinge Zhao, Weibo Zhou

引用次数: 2

Effects of environmental policy measures on the nitrate pollution of groundwater in Jinfo Mt. region 环境政策措施对金佛山地区地下水硝酸盐污染的影响

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5892954

Kunyu Wu, Li-cheng Shen, Yuchuan Sun, Bailing Zhang

引用次数: 0

Assessment of energy saving technologies in Chinese integrated steel plant 中国综合钢厂节能技术评价

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893478

Dawei Ni, Zhanglin Peng, Tao Yu

引用次数: 0

Analysis on the change laws of evapotranspiration and its influencing factors in arid areas 干旱区土壤蒸散变化规律及其影响因素分析

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893015

Deng Hongzhang, W. Wenke, Chen Donghui

引用次数: 1

Public pressure, stakeholder management and environment disclosure 公众压力、利益相关者管理与环境信息披露

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893407

H. Jun, Xin Yu, Li Haohong

引用次数: 0

Experimental study on treating micro-polluted raw water with PAC and PAFC PAC和PAFC处理微污染原水的实验研究

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893298

Liping Zhang, Xiaomei Gao

引用次数: 0

Effects of phosphorus on crop water and nitrogen use efficiency under different precipitaion year in dryland 不同降水年份下磷对旱地作物水氮利用效率的影响

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893679

Bing Wang, Wenzhao Liu, T. Dang

{"title":"Effects of phosphorus on crop water and nitrogen use efficiency under different precipitaion year in dryland","authors":"Bing Wang, Wenzhao Liu, T. Dang","doi":"10.1109/ISWREP.2011.5893679","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893679","url":null,"abstract":"Absence of soil phosphorus constrained the crop yield, the use of limited water resource and nitrogen nutrient in dryland on the loess plateau. Reasonable phosphorus fertilization was also crucial to increase crop yield and improve water and nitrogen use efficiency. It was conducted that the effect of phosphorus application rate on crop yield, water consumption, nitrogen absorption, water use efficiency, and nitrogen use efficiency at long term fertilization experiment station in dryland on the loess plateau during different precipitation year. The results showed that during different type of year most of the indexes had similar trend of rising with phosphorus rate increasing in a lower range and dropping down in a higher range except for water consumption and harvesting index (HI). More higher phosphorus rates were unfavorable to crop yield, water and nitrogen use efficiency in both types of years but phosphorus application in all rates decreased HI and water consumption more than non phosphorus application treatment in dry year. So moderate phosphorus application was the favorable selection for higher crop productivity, water and nitrogen use efficiency in dryland on loess plateau, simultaneously may be helpful for improving utilization effect of phosphorus fertilizer.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":"21 1","pages":"2111-2114"},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78540048","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: 5

Simple estimation method on Kostiakov infiltration parameters in border irrigation 边界灌溉Kostiakov入渗参数的简单估算方法

2011 International Symposium on Water Resource and Environmental Protection Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893636

W. Weihan, Pan Wen-ying

引用次数: 3