本文選題：浙江　切入點(diǎn)：大陸海岸線　出處：《海洋學(xué)研究》2016年03期 　論文類型：期刊論文

【摘要】：收集7個(gè)時(shí)期的歷史圖件或衛(wèi)星遙感影像,運(yùn)用RS和GIS技術(shù),進(jìn)行信息提取和實(shí)測(cè)岸線數(shù)據(jù)驗(yàn)證,獲取各時(shí)期浙江大陸海岸線矢量,統(tǒng)計(jì)分析結(jié)果顯示:(1)浙江大陸海岸線總體上表現(xiàn)為海岸線位置外推加快,平直的人工岸線不斷取代曲折的自然岸線,部分近岸島嶼并入大陸,海岸線長(zhǎng)度明顯縮短,百年來(lái)人工岸線所占比例由48.01%上升至67.46%。(2)人工岸線和圍墾面積變化規(guī)律總體呈現(xiàn)出3個(gè)明顯階段:1913—1970年自耕農(nóng)時(shí)代高灘圍墾階段,人工岸線長(zhǎng)度增加288.78km,圍墾面積僅增593.35km2;1970—1995年集體農(nóng)業(yè)時(shí)代聯(lián)圍堵港階段,圍墾面積快速增加,人工岸線長(zhǎng)度反而減少;1995—2014年工業(yè)與城鎮(zhèn)化建設(shè)圍墾階段,人工岸線長(zhǎng)度增加116.66km,而圍墾面積劇增1 053.00km2。(3)河口區(qū)大陸海岸線全線平移外推,海岸線長(zhǎng)度則有增有減,1913年以來(lái)浙江主要河口區(qū)圍填海面積達(dá)1 914.85km2,占全省圍填海面積的76.79%。(4)海灣區(qū)大陸海岸線變化以截彎取直為特點(diǎn),岸線總長(zhǎng)度持續(xù)減少,百年來(lái)三大港灣圍填海面積達(dá)429.32km2,占全省的17.22%。
[Abstract]:Collecting historical maps or satellite remote sensing images of seven periods, using RS and GIS techniques, extracting information and verifying the measured shoreline data, obtaining the coastline vector of Zhejiang mainland in each period. The results of statistical analysis show that the shoreline of Zhejiang mainland generally shows that the shoreline position is extrapolated faster, the straight artificial shoreline continuously replaces the tortuous natural shoreline, some of the inshore islands are incorporated into the mainland, and the length of the shoreline is obviously shortened. The proportion of artificial shoreline increased from 48.01% to 67.46.Qun (2) the change of artificial shoreline and reclamation area showed three distinct stages: 1913-1970, the stage of high beach reclamation in the age of peasant farmers, the proportion of artificial shoreline was increased from 48.01% to 67.460.The change law of artificial shoreline and reclamation area showed three distinct stages. The length of artificial shoreline increased by 288.78km, the reclamation area increased only by 593.35km2 (1970-1995), the reclamation area increased rapidly, and the length of artificial shoreline decreased during the period of industrial and urbanization construction reclamation in 1995-2014. The length of artificial shoreline increased by 116.66km, while the reclamation area increased sharply by 1053.00km2. The length of the coastline has increased and decreased. Since 1913, the reclaimed area of the main river estuary in Zhejiang Province has reached 1 914.85 km ~ 2, accounting for 76.79.9 km2 of the total reclaimed area of the whole province.) the coastline changes in the gulf area are characterized by truncation and straightness, and the total length of the shoreline continues to decrease. In the past 100 years, the reclamation area of the three major harbors has reached 429.32 km2, accounting for 17.22% of the whole province.
【作者單位】： 國(guó)家海洋局第二海洋研究所;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目資助(41576095) 浙江省“908”專項(xiàng)海岸帶調(diào)查項(xiàng)目資助(ZJ908-01-03)
【分類號(hào)】：P737.1;P715.7

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