本文選題：輻射沙洲內(nèi)緣區(qū) + 地貌演變��； 參考：《南京師范大學(xué)》2014年博士論文

【摘要】：輻射沙洲內(nèi)緣區(qū)是潮波系統(tǒng)的匯合區(qū),潮灘持續(xù)淤長(zhǎng)提供了巨大海岸空間資源利用潛力,潮溝頻繁擺動(dòng)使得灘槽變化劇烈,演變驅(qū)動(dòng)機(jī)制研究可為內(nèi)緣區(qū)復(fù)雜動(dòng)力環(huán)境下的潮灘圍墾開發(fā)提供技術(shù)支撐。本論文通過(guò)收集整理并系統(tǒng)分析輻射沙洲海域水文、地形、遙感等調(diào)查研究資料,構(gòu)建了輻射沙洲地理數(shù)據(jù)庫(kù),結(jié)合前人研究成果,進(jìn)一步梳理分析了輻射沙洲宏觀演變背景與動(dòng)力格局,采用遙感、GIS技術(shù)和數(shù)值模擬技術(shù)等多種研究方法和手段進(jìn)行內(nèi)緣區(qū)演變驅(qū)動(dòng)機(jī)制的研究,在此基礎(chǔ)上,根據(jù)內(nèi)緣區(qū)潮流數(shù)學(xué)模型,研究并提出了輻射沙洲內(nèi)緣區(qū)的圍墾布局原則和方案。 (1)根據(jù)1973年～2013年的遙感影像和實(shí)測(cè)地形數(shù)據(jù),采用GIS技術(shù)從多角度系統(tǒng)分析了“水道-沙洲系統(tǒng)”宏觀演變特征和近期動(dòng)態(tài)�！八�-沙洲系統(tǒng)”格局演變特征表現(xiàn)在以下幾個(gè)方面：“水道-沙洲系統(tǒng)”組合形態(tài)基本穩(wěn)定；潮灘規(guī)模相對(duì)穩(wěn)定,總體態(tài)勢(shì)外沖內(nèi)淤；靠岸潮汐通道的岸向遷移；南北兩翼在形態(tài)及演變動(dòng)態(tài)上存在空間分異。 (2)輻射沙洲內(nèi)緣區(qū)“沙洲-水道復(fù)合系統(tǒng)”演變特征總體表現(xiàn)為：內(nèi)緣區(qū)穩(wěn)定淤長(zhǎng)、灘槽多變；內(nèi)緣區(qū)南北向潮汐通道的穩(wěn)定存在,主槽遷移轉(zhuǎn)換；內(nèi)緣區(qū)近期水道組合態(tài)勢(shì)表現(xiàn)為高泥淤長(zhǎng)、豆腐渣腰門水道北移、西大港和東大港的南北串通。 (3)1970年以來(lái),輻射沙洲內(nèi)緣區(qū)的演變過(guò)程可劃分為四個(gè)階段：1970s陳家塢時(shí)期(完整沙洲期)、1980s動(dòng)力相對(duì)平衡時(shí)期、1990s西大港時(shí)期、2000年以后東大港時(shí)期。 (4)對(duì)內(nèi)緣區(qū)演變機(jī)制的認(rèn)識(shí)：內(nèi)緣區(qū)是兩大潮波系統(tǒng)的匯合區(qū)域,潮波輻合區(qū)域呈動(dòng)蕩性特征；輻射沙洲內(nèi)緣區(qū)南北兩側(cè)水體通道的穩(wěn)定存在；內(nèi)緣區(qū)東部高泥持續(xù)擴(kuò)張使得陳家塢槽尾部南北向通道逐漸萎縮淤死,西大港和東大港潮溝系統(tǒng)的演變實(shí)質(zhì)內(nèi)緣區(qū)南北向通道主槽西移過(guò)程中的適應(yīng)性發(fā)展；在外部環(huán)境穩(wěn)定背景下,內(nèi)緣區(qū)將總體表現(xiàn)為南北向主槽通道相對(duì)穩(wěn)定和分支潮溝系統(tǒng)的動(dòng)態(tài)多變。 (5)輻射沙洲內(nèi)緣區(qū)是規(guī)模最大的低潮出露沙洲區(qū),但由于其位于兩大潮波輻合區(qū),潮汐水道在此處匯合貫通,使得其水動(dòng)力環(huán)境復(fù)雜,灘槽沖淤多變。潮灘圍墾布局需與潮流動(dòng)力場(chǎng)相適應(yīng),維持現(xiàn)有潮汐動(dòng)力格局的穩(wěn)定性。內(nèi)緣區(qū)圍墾布局的基本原則：①保持南北水道的貫通。②保留水道“裂點(diǎn)區(qū)”。③西大港擺動(dòng)退讓。 (6)依據(jù)研究提出的內(nèi)緣區(qū)圍墾原則,論文提出大、小兩類8種圍墾布局總體方案。根據(jù)不同圍墾布局方案的潮流動(dòng)力和通量變化響應(yīng)分析,論文推薦小規(guī)模區(qū)塊式圍墾布局方案。由于北尖子圍區(qū)和高泥北圍區(qū)灘面較為穩(wěn)定、匯水潮溝系統(tǒng)發(fā)育不顯著,是優(yōu)先推薦的圍墾區(qū)域。高泥南圍區(qū)所在灘面是東大港與南側(cè)水體的匯水區(qū),灘面潮溝系統(tǒng)發(fā)育明顯,圍墾條件較為復(fù)雜,在區(qū)域圍墾需求不顯著時(shí),建議限制開發(fā)。 論文創(chuàng)新性體現(xiàn)在：①基于輻射沙洲海域的地貌形態(tài)特征和動(dòng)力特征,提出了基于控制性動(dòng)力的輻射沙洲“水道-沙洲系統(tǒng)”動(dòng)力地貌系統(tǒng)的分區(qū)方案；②提出了輻射沙洲內(nèi)緣區(qū)的年代際演變階段特征,揭示了內(nèi)緣區(qū)潮流動(dòng)力環(huán)境變化過(guò)程及機(jī)制；③提出了內(nèi)緣區(qū)潮灘圍墾布局基本原則,在此基礎(chǔ)上確定了沙洲內(nèi)緣區(qū)的小規(guī)模區(qū)塊式圍墾布局方案。
[Abstract]:The inner border area of the radiation sandbar is the confluence area of the tidal wave system. The continuous silting of the tidal flat provides the potential of the huge coastal space resources, which makes the tidal flutches change violently. The research on the evolution drive mechanism can provide technical support for the tidal flat reclamation and development under the complex dynamic environment of the inner border area. The research data of hydrology, topography and remote sensing in the sea area of the radiant sandbar sea have been studied, and the geographical database of the radiation sandbar is constructed. The background and dynamic pattern of the macro evolution of the radiation sandbar are analyzed and analyzed in combination with the previous research results. The research methods and means of remote sensing, GIS and numerical simulation are used to carry out the driving mechanism of the evolution of the inner edge region. Based on the study, based on the mathematical model of the inner area tidal current, the layout principles and schemes of the reclamation area in the inner area of the radial sand bar are studied and put forward.
(1) according to the remote sensing images and the measured terrain data from 1973 to 2013, the macro evolution characteristics and recent dynamics of the "waterway sandbank system" are analyzed by GIS technology. The characteristics of the evolution of the pattern of "waterway sandbank system" are shown in the following aspects: the combination form of "waterway sandbank system" is basically stable; the tidal flat rules are basically stable. The model is relatively stable, and the overall situation is washed away by internal deposition; the shore migration of the tidal channel along the shore; there are spatial differences in the morphology and evolution of the two wings.
(2) the characteristics of the evolution of the "sand continent waterway complex system" in the inner border area of the radiation sandbar are as follows: the inner border area is stable and long, the beach trough is changeable, the North-South tidal channel in the inner border area is stable, the main channel is transferred and converted, and the recent waterway combination trend in the inner border area is high mud silt, the bean curd slag waist channel moves north, West Dagang and Dagang's south. North collusion.
(3) since 1970, the evolution process of the inner border area of the radiation sandbar can be divided into four stages: the 1970s Chen Jiawu period (complete sandbar period), the period of 1980s dynamic relative balance, the period of 1990s West Dagang, and the East Dagang period after 2000.
(4) understanding the evolution mechanism of the inner border area: the inner border area is the confluence area of the two tidal wave system, the tidal wave convergence region is turbulent characteristic, the water channel of the north and south sides of the inner rim region of the radiation sandbar is stable, and the continuous expansion of the high mud in the eastern part of the inner margin makes the south to north passage of the Chen Jiawu trough tail gradually atrophy and silt, west big port and East Dagang The evolution of the tidal gully system is the adaptive development of the North-South channel main channel in the West. Under the background of external environment stability, the inner border area will be relatively stable in the north and south channel and the dynamic variation of the branch trench system.
(5) the inner border area of the radiation sandbar is the largest low tide outcropping Sandbar Area, but because it is located in the two tidal wave convergence area, the tidal channel converges here, making the hydrodynamic environment complex and the flush and silting of the beach is changeable. The tidal flat reclamation layout needs to adapt to the tidal power field and maintain the stability of the existing tidal dynamic pattern. The basic principles of the bureau are as follows: 1. Maintain the link between the north and South waterways. 2. Retain the "crack point area" of the waterway.
(6) according to the principle of reclamation in the inner border area proposed by the study, the paper puts forward the overall plan of the large and small two categories of 8 kinds of reclamation layout. According to the response analysis of the tidal power and flux change of the different reclamation layout schemes, the paper recommends the small scale block reclamation layout scheme. The coastal area of high mud south is the confluence area of East Dagang and south water, the tidal gully system of the beach surface is well developed, the reclamation conditions are more complex, and it is suggested to restrict the development when the demand for reclamation is not significant.
The innovation of the paper is embodied in the following: (1) based on the morphological features and dynamic characteristics of the sea area of the radiation sandbar, the zoning scheme of the dynamic geomorphology system of the "waterway sandbank system" in the radiation sandbar, based on the control power, is put forward, and the characteristics of the interdecadal evolution stage of the inner edge of the radiation sandbar are put forward, and the dynamic environment of the inner edge area is revealed. The basic principle of the tidal flat reclamation layout in the inner border area is put forward, and the small scale block reclamation layout of the inner edge area of the sand continent is determined on this basis.
【學(xué)位授予單位】：南京師范大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2014
【分類號(hào)】：P748

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 陳可鋒;王艷紅;陸培東;鄭金海;;Effects of Coastline Changes on Tide System of Yellow Sea off Jiangsu Coast,China[J];China Ocean Engineering;2009年04期

2 沈婕;蘇昆;張鷹;吳敬文;;基于遙感反演水深數(shù)據(jù)的測(cè)圖技術(shù)研究[J];測(cè)繪科學(xué);2009年04期

3 吳自銀;曹振軼;王小波;鄭玉龍;;海底沙脊地貌的研究現(xiàn)狀及進(jìn)展[J];海洋學(xué)研究;2006年03期

4 陳君,馮衛(wèi)兵,張忍順;蘇北岸外條子泥沙洲潮溝系統(tǒng)的穩(wěn)定性研究[J];地理科學(xué);2004年01期

5 劉永學(xué),張忍順,李滿春;應(yīng)用衛(wèi)星影像系列海圖疊合法分析沙洲動(dòng)態(tài)變化——以江蘇東沙為例[J];地理科學(xué);2004年02期

6 吳小根,王愛軍;人類活動(dòng)對(duì)蘇北潮灘發(fā)育的影響[J];地理科學(xué);2005年05期

7 王靖泰,汪品先;中國(guó)東部晚更新世以來(lái)海面升降與氣候變化的關(guān)系[J];地理學(xué)報(bào);1980年04期

8 張忍順;蘇北黃河三角洲及濱海平原的成陸過(guò)程[J];地理學(xué)報(bào);1984年02期

9 康彥彥;丁賢榮;程立剛;張晶;;基于勻光遙感的6000年來(lái)鹽城海岸演變研究[J];地理學(xué)報(bào);2010年09期

10 喻國(guó)華，，陸培東;江蘇呂四小廟洪淹沒性潮汐汊道的穩(wěn)定性[J];地理學(xué)報(bào);1996年02期

相關(guān)博士學(xué)位論文 前3條

1 卜志國(guó);海洋生態(tài)環(huán)境監(jiān)測(cè)系統(tǒng)數(shù)據(jù)集成與應(yīng)用研究[D];中國(guó)海洋大學(xué);2010年

2 陳可鋒;黃河北歸后江蘇海岸帶陸海相互作用過(guò)程研究[D];南京水利科學(xué)研究院;2008年

3 張軍強(qiáng);黃海西部近岸陸架區(qū)晚更新世以來(lái)沉積演化與物源研究[D];中國(guó)海洋大學(xué);2012年

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