本文關(guān)鍵詞：基于改進生態(tài)足跡模型的保定市耕地利用生態(tài)效率研究　出處：《河北農(nóng)業(yè)大學》2015年碩士論文　論文類型：學位論文

  更多相關(guān)文章： 生態(tài)足跡模型 耕地 生態(tài)效率 保定市

【摘要】：耕地利用不僅產(chǎn)生有利于人類社會生產(chǎn)生活的產(chǎn)品和服務,還會伴隨諸如污染物等“非期望產(chǎn)品”,從而造成生態(tài)環(huán)境問題。如何協(xié)調(diào)耕地利用與生態(tài)環(huán)境保護之間的關(guān)系,促進耕地資源的可持續(xù)利用逐漸受到相關(guān)研究的關(guān)注。鑒于目前生態(tài)效率引入土地利用效率研究的時間較短,相關(guān)研究尚處于起步階段;且由于耕地利用活動與人類的關(guān)系最為密切,相關(guān)資料的獲取性和分析研究的可理解性較好,因此本文選取耕地利用生態(tài)效率作為土地利用生態(tài)效率研究的切入點。本文在耕地利用生態(tài)效率的研究中,應用改進的生態(tài)足跡模型對研究區(qū)耕地生態(tài)足跡和耕地生態(tài)承載力進行測算,用耕地生態(tài)足跡衡量耕地生物資源的消費和廢棄物排放水平,用耕地生態(tài)承載力衡量研究區(qū)耕地資源的供給狀況;再結(jié)合耕地利用的農(nóng)業(yè)產(chǎn)值產(chǎn)出及其它各類生產(chǎn)要素投入指標構(gòu)建耕地利用生態(tài)效率評價指標體系;結(jié)合數(shù)據(jù)包絡(luò)分析方法對研究區(qū)的耕地利用生態(tài)效率進行測算,并依據(jù)測算結(jié)果分析保定市耕地利用生態(tài)效率水平。通過研究得出結(jié)論如下:1)由保定市時間序列耕地利用生態(tài)效率評價結(jié)果可知,2000~2012年,保定市耕地生態(tài)效率的綜合效率從總體上呈波動地上升趨勢;耕地利用生態(tài)效率的技術(shù)效率水平呈先下降后上升的趨勢;耕地利用生態(tài)效率的規(guī)模效率水平總體上呈上升趨勢。2)由保定市分區(qū)耕地利用生態(tài)效率評價結(jié)果可知,2012年保定市耕地利用生態(tài)效率的綜合效率主要是受到技術(shù)效率的影響;保定市23個縣市區(qū)的耕地利用生態(tài)效率水平并不均衡,各地區(qū)之間存在一定的差異。從空間分布上看,耕地利用生態(tài)效率綜合效率水平較高的地區(qū)包括位于保定市西北區(qū)地區(qū)的淶源縣,位于保定市東部地區(qū)的容城縣、高碑店市、雄縣和涿州市,以及位于保定市東南部及南部地區(qū)的高陽縣、蠡縣、博野縣和定州市,而耕地利用生態(tài)效率的綜合效率水平較低縣市主要分布于保定市中部地區(qū)、北部地區(qū)和西南部地區(qū)。由耕地利用生態(tài)效率的規(guī)模收益值可知,規(guī)模收益值為1的定州市、高碑店市和高陽縣等6個縣市以及規(guī)模收益值接近1的保定市市區(qū),處于或接近于規(guī)模收益不變階段,其實際利用規(guī)模處于或接近于相對最適規(guī)模,因此在其今后的耕地利用中應該采取穩(wěn)定的耕地利用政策;順平縣的規(guī)模收益值大于1,處于規(guī)模收益遞減階段,因此為了提高其耕地利用生態(tài)效率,需要適當控制生產(chǎn)要素的投入規(guī)模,實現(xiàn)各種耕地生產(chǎn)要素的最優(yōu)組合;其他縣市的規(guī)模收益值小于1,處于規(guī)模收益遞增階段,但由于不同縣市的自然生態(tài)環(huán)境狀況與耕地利用條件存在差異,因此需要采取不同的耕地利用措施。
[Abstract]:The use of cultivated land not only produces products and services conducive to the production and life of human society, but also accompanies "undesirable products" such as pollutants. How to coordinate the relationship between cultivated land use and ecological environment protection. To promote the sustainable use of cultivated land resources has gradually attracted the attention of relevant research. In view of the short time of introducing ecological efficiency into the study of land use efficiency, the related research is still in its infancy. And because of the most close relationship between cultivated land use activities and human beings, the acquisition of relevant data and the comprehensibility of analysis and research are better. Therefore, this paper selects the ecological efficiency of cultivated land use as the breakthrough point of the study of ecological efficiency of land use. The improved ecological footprint model was applied to measure the ecological footprint of cultivated land and the ecological carrying capacity of cultivated land in the study area. The ecological footprint of cultivated land was used to measure the consumption and waste emission level of cultivated land biological resources. The ecological carrying capacity of cultivated land is used to measure the supply of cultivated land resources in the study area. Secondly, the evaluation index system of cultivated land ecological efficiency is constructed by combining the agricultural output output of cultivated land utilization and other kinds of production factor input index. The ecological efficiency of cultivated land utilization in the study area was measured with the method of data envelope analysis. The ecological efficiency of cultivated land utilization in Baoding city was analyzed according to the result of calculation. The following conclusions were drawn from the study: 1) based on the evaluation results of ecological efficiency of cultivated land utilization in Baoding city time series, we can know that the ecological efficiency of cultivated land use is from 2000 to 2012. The comprehensive efficiency of ecological efficiency of cultivated land in Baoding City has a fluctuating trend. The level of technical efficiency of ecological efficiency of cultivated land decreased first and then increased; The scale efficiency level of cultivated land use ecological efficiency showed an upward trend on the whole. 2) according to the evaluation results of ecological efficiency of cultivated land use in Baoding city. In 2012, the comprehensive efficiency of ecological efficiency of cultivated land utilization in Baoding City was mainly affected by technical efficiency. The level of ecological efficiency of cultivated land utilization in 23 counties and urban areas of Baoding City is not balanced, and there are some differences between different regions, from the point of view of spatial distribution. The high level of comprehensive efficiency of cultivated land use ecological efficiency includes Laiyuan County located in the northwest of Baoding City, Rongcheng County in the eastern part of Baoding City, Gaobeidian City, Xiong County and Zhuozhou City. And Gaoyang County, Lixian County, Boye County and Dingzhou City located in the southeast and south of Baoding City, while the low level of comprehensive efficiency of cultivated land utilization ecological efficiency is mainly distributed in the central region of Baoding City. From the scale income value of cultivated land utilization ecological efficiency, Dingzhou City with scale income value of 1 can be known. Gaobeidian City and Gaoyang County, as well as Baoding city, where the scale income value is close to 1, is in or close to the same stage of scale income, and its actual utilization scale is in or close to the relative optimum scale. Therefore, it is necessary to adopt a stable policy of cultivated land use in the future. The scale income of Shunping County is more than 1, which is in the stage of decreasing scale income. Therefore, in order to improve the ecological efficiency of cultivated land use, it is necessary to properly control the input scale of production factors. To realize the optimal combination of various factors of cultivated land production; The scale income of other counties and cities is less than 1, which is in the increasing stage of scale income. However, because of the difference between the natural ecological environment and the cultivated land utilization conditions of different counties and cities, it is necessary to take different cultivated land utilization measures.
【學位授予單位】：河北農(nóng)業(yè)大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：F323.211

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本文編號：1363694