Since the 1970s, remote sensing images have provided new information for the delineation and analysis of coastline changes, especially focusing on the short timescale changes. This paper, based on the Landsat MSS imag...Since the 1970s, remote sensing images have provided new information for the delineation and analysis of coastline changes, especially focusing on the short timescale changes. This paper, based on the Landsat MSS imagery, focuses on the coastline evolution of Yancheng, northern Jiangsu, China since the mid-Holocene. A zebra stripe image, which could reveal the ancient coastal evolution of Yancheng, was extracted from a Landsat MSS image. Based on the extracted black-white stripes, 19 surface sediment samples were recovered and analyzed to recognize the sedimentary characteristics of these stripes. It shows that most sand and silty sand samples appear on the white stripes, while silt and silty clay samples are on the black stripes. Sandy and muddy sediments present an alternating distri- bution pattern on the Yancheng coastal plain. A historical coastline map was drawn according to the previous research achievements of the paleo-coastal sand barriers and paleo-coastlines, and was superimposed on the zebra stripe image. The trend of the extracted zebra stripes is consistent with the historical coastlines, and it should be the symbol of the Yancheng coastline evolution. On the basis of ten sets of black-white stripes and previous research results, we divided the progression of Yancheng coastal evolution into three stages （i.e., the early stable stage （6500 a BP-AD 1128）, the rapid deposition stage （AD 1128-1855） and the adjustment stage （AD 1855-present））. Ten sets of black-white stripes were identified as the characteristic pattern of the coastline evolution on the Yancheng coastal plain.展开更多
It was mainly research on the causes, manifestations, and risk dodges of the industry risk selection, industry structure dsk during the readjustment of the industrial structure and the establishment of the early-warni...It was mainly research on the causes, manifestations, and risk dodges of the industry risk selection, industry structure dsk during the readjustment of the industrial structure and the establishment of the early-warning model of risk aversion.展开更多
2016年2月16日[华盛顿特区讯]-美国绿色建筑委员会（USGBC）日前发布了《2016年世界绿色建筑趋势智能市场报告》。该报告是道奇数据分析公司（Dodge Data Analytics）联手特约合作伙伴美国绿色建筑委员会（USGBC）共同编制而成。最新报...2016年2月16日[华盛顿特区讯]-美国绿色建筑委员会（USGBC）日前发布了《2016年世界绿色建筑趋势智能市场报告》。该报告是道奇数据分析公司（Dodge Data Analytics）联手特约合作伙伴美国绿色建筑委员会（USGBC）共同编制而成。最新报告显示中国绿色建筑产业很大程度上受客户需求、环保法规和健康社区的带动,预计到2018年会实现占有率从5%到28%的超过五倍的增长。展开更多
基金National Basic Research Program of China （973 Program）, No.2010CB429001 Comprehensive Investigation and Assessment in Jiangsu Offshore Area, No.JS-908-01-02+4 种基金 National Key Technologies Research and Development Program of China, No.2012BAB03B00 Special Fund for Marine Scientific Research in the Public Interest, No.201005006-3 National Natural Science Foundation of China, No.51179067 Graduate Student Research and Innovation Project of Jiangsu General Higher Learning Institution, No.CXLX 12_0256 Natural Science Foundation of Jiangsu Province, No.BK2012414
文摘Since the 1970s, remote sensing images have provided new information for the delineation and analysis of coastline changes, especially focusing on the short timescale changes. This paper, based on the Landsat MSS imagery, focuses on the coastline evolution of Yancheng, northern Jiangsu, China since the mid-Holocene. A zebra stripe image, which could reveal the ancient coastal evolution of Yancheng, was extracted from a Landsat MSS image. Based on the extracted black-white stripes, 19 surface sediment samples were recovered and analyzed to recognize the sedimentary characteristics of these stripes. It shows that most sand and silty sand samples appear on the white stripes, while silt and silty clay samples are on the black stripes. Sandy and muddy sediments present an alternating distri- bution pattern on the Yancheng coastal plain. A historical coastline map was drawn according to the previous research achievements of the paleo-coastal sand barriers and paleo-coastlines, and was superimposed on the zebra stripe image. The trend of the extracted zebra stripes is consistent with the historical coastlines, and it should be the symbol of the Yancheng coastline evolution. On the basis of ten sets of black-white stripes and previous research results, we divided the progression of Yancheng coastal evolution into three stages （i.e., the early stable stage （6500 a BP-AD 1128）, the rapid deposition stage （AD 1128-1855） and the adjustment stage （AD 1855-present））. Ten sets of black-white stripes were identified as the characteristic pattern of the coastline evolution on the Yancheng coastal plain.
基金the National Natural Science Foundation of China(70572072)the Science and Technology Research Project of the Education Department of Liaoning Province(05L178,20060382)
文摘It was mainly research on the causes, manifestations, and risk dodges of the industry risk selection, industry structure dsk during the readjustment of the industrial structure and the establishment of the early-warning model of risk aversion.
文摘2016年2月16日[华盛顿特区讯]-美国绿色建筑委员会（USGBC）日前发布了《2016年世界绿色建筑趋势智能市场报告》。该报告是道奇数据分析公司（Dodge Data Analytics）联手特约合作伙伴美国绿色建筑委员会（USGBC）共同编制而成。最新报告显示中国绿色建筑产业很大程度上受客户需求、环保法规和健康社区的带动,预计到2018年会实现占有率从5%到28%的超过五倍的增长。
