本文關(guān)鍵詞：基于PSR模型的水電站工程土地生態(tài)安全評價(jià)研究　出處：《昆明理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 土地生態(tài)安全 PSR模型 指標(biāo)體系 評價(jià) 漫灣水電站

【摘要】：隨著社會(huì)經(jīng)濟(jì)發(fā)展,土地生態(tài)環(huán)境和土地生態(tài)安全已成為人們研究的熱點(diǎn),水電是云南的支柱產(chǎn)業(yè)之一,水電工程建設(shè)推動(dòng)經(jīng)濟(jì)社會(huì)發(fā)展的同時(shí),也對土地生態(tài)環(huán)境產(chǎn)生了不可避免的破壞,充分認(rèn)識(shí)水電站建設(shè)對土地生態(tài)安全的影響有助于水電產(chǎn)業(yè)的持續(xù)、健康發(fā)展。本文選取瀾滄江流域漫灣水電站作為研究案例,通過分析電站建設(shè)前后土地生態(tài)環(huán)境狀況,構(gòu)建評價(jià)模型,開展土地生態(tài)安全評價(jià),研究可為云南大中型水電工程土地生態(tài)安全建設(shè)提供依據(jù)。本文首先在吸收國內(nèi)外相關(guān)研究的基礎(chǔ)上,以壓力—狀態(tài)—響應(yīng)(PSR)模型為藍(lán)本,構(gòu)建水電站土地生態(tài)安全評價(jià)的方法體系,通過建立指標(biāo)體系,采用閥值法對指標(biāo)值進(jìn)行無量綱化處理,熵權(quán)法確定指標(biāo)權(quán)重,再根據(jù)綜合指數(shù)法計(jì)算土地生態(tài)安全指數(shù)。其次,通過社會(huì)經(jīng)濟(jì)、土地利用、土壤侵蝕、地質(zhì)災(zāi)害等方面的變化,分析漫灣水電站建設(shè)前后土地生態(tài)環(huán)境變化狀況。最后,對漫灣水電站開展土地生態(tài)安全評價(jià),先以鄉(xiāng)鎮(zhèn)為評價(jià)單元,對漫灣水電站1997年和2009年的土地生態(tài)安全進(jìn)行評價(jià),得出7個(gè)鄉(xiāng)(鎮(zhèn))的土地生態(tài)安全均有不同程度的好轉(zhuǎn)改善,綜合指數(shù)均處于上升趨勢,2個(gè)鄉(xiāng)的綜合指數(shù)呈下降趨勢,土地生態(tài)安全狀態(tài)由較安全惡化為預(yù)警狀態(tài)；在此基礎(chǔ)上,再以村為評價(jià)單元對漫灣水電站2009年的土地生態(tài)安全進(jìn)行評價(jià),得出緊鄰瀾滄江流域、漫灣水電站兩側(cè)的區(qū)域大部分處于安全和較安全狀態(tài),而位于研究區(qū)西南、東北和北部邊緣的區(qū)域處于預(yù)警和中警狀態(tài)；針對評價(jià)結(jié)果,對漫灣水電站土地生態(tài)環(huán)境問題提出相關(guān)建議,并進(jìn)一步總結(jié)大中型水電工程土地生態(tài)安全建設(shè)的對策措施。
[Abstract]:With the development of social economy, the ecological environment of land and land ecological security has become a hot research, hydropower is one of the pillar industries of Yunnan hydropower project construction, promote the development of economy and society, also produced the inevitable destruction of land ecological environment, fully understand the construction of hydropower station on land ecological security is helpful for hydropower industry the sustained, healthy development. This paper selects the Lancang river basin hydropower station as a case study, through the analysis of power station construction before and after the land ecological environment construction, evaluation model, evaluation of ecological security of land, the research can provide the basis for the construction of land ecological security in Yunnan large and medium-sized hydropower project. Based on the absorption of domestic and foreign related research on the pressure state response (PSR) model based on the method of system construction, land ecological security evaluation of hydropower station, through the construction of Establish index system, using the threshold method of value dimensionless index to determine the index weight, entropy method, then calculate the ecological security index of land according to the comprehensive index method. Secondly, through social economy, land use, soil erosion, change of geological disasters, analysis of Manwan Hydropower Station construction status of land ecological environment change before and after. Finally, the Manwan Hydropower Station to carry out the land ecological security evaluation, the first in the town as the evaluation unit, the land ecological security station in 1997 and 2009 to evaluate the Manwan Hydropower reached 7, the township (town) improved the land ecological security were improved, the comprehensive index are on the rise, the comprehensive index of 2 the township is on the decline, the land ecological security status by a deterioration in the security warning state; on this basis, and then to the village as a land ecological security evaluation unit of Manwan Hydropower Station by 2009 The evaluation, close to the Lancang River Basin, Manwan Hydropower Station on both sides of the area in the most safe and relatively safe state, and the study area is located in southwest, northeast and northern edge of the area in the early warning and alarm status; according to the evaluation result, suggestion about land ecological environment of Manwan Hydropower Station, and further summarizes the Countermeasures of large and medium sized hydropower project construction land ecological security.

【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：X826;F301.2

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本文編號(hào)：1366810