天堂国产午夜亚洲专区-少妇人妻综合久久蜜臀-国产成人户外露出视频在线-国产91传媒一区二区三区

黃淮海平原耕地多功能效應(yīng)及保護(hù)補(bǔ)償研究

發(fā)布時(shí)間:2018-01-02 20:41

  本文關(guān)鍵詞:黃淮海平原耕地多功能效應(yīng)及保護(hù)補(bǔ)償研究 出處:《中國(guó)農(nóng)業(yè)大學(xué)》2016年博士論文 論文類(lèi)型:學(xué)位論文


  更多相關(guān)文章: 耕地多功能 耕地功能效應(yīng) 耕地保護(hù)補(bǔ)償 黃淮海平原


【摘要】:耕地作為陸地生態(tài)系統(tǒng)的重要組成部分,它不僅是生產(chǎn)資源,也是重要的生態(tài)和社會(huì)資源。隨著快速城鎮(zhèn)化發(fā)展、生態(tài)環(huán)境問(wèn)題凸顯,以及可持續(xù)發(fā)展理念的提出,耕地多功能效應(yīng)越來(lái)越引起廣泛關(guān)注和認(rèn)可。而正確認(rèn)識(shí)、科學(xué)評(píng)價(jià)耕地功能效應(yīng)及其價(jià)值,對(duì)于促進(jìn)耕地多功能利用,發(fā)揮耕地多功能綜合效應(yīng),實(shí)現(xiàn)耕地保護(hù)有重要意義。本文首先從耕地利用和耕地功能需求角度出發(fā),構(gòu)建了耕地多功能研究理論框架;然后,通過(guò)建立較高層級(jí)耕地功能與系統(tǒng)輸出對(duì)應(yīng)關(guān)系,從投入-產(chǎn)出角度進(jìn)行了耕地功能運(yùn)行效應(yīng)綜合評(píng)價(jià);并重點(diǎn)研究了黃淮海平原耕地生產(chǎn)、固碳和水源涵養(yǎng)三大功能的層次性及其效應(yīng);最后,提出基于功能效應(yīng)的耕地保護(hù)補(bǔ)償新思路。研究主要結(jié)論如下:(1)耕地多功能客觀存在,且主要通過(guò)需求來(lái)顯化。傳統(tǒng)耕地全功能研究,耕地功能主次不清,各種功能間復(fù)雜關(guān)系難以理清,從耕地功能需求角度研究耕地多功能,顯化符合區(qū)域需求目標(biāo)的主導(dǎo)功能,更有助于發(fā)揮耕地關(guān)鍵功能綜合效益,促進(jìn)耕地多功能利用和保護(hù)。(2)耕地多功能效應(yīng)綜合評(píng)估結(jié)果顯示,2000-2012年,黃淮海平原耕地利用系統(tǒng)功能運(yùn)行產(chǎn)出率、功能效應(yīng)密度不斷提高,耕地利用系統(tǒng)基本處于可持續(xù)狀態(tài)。而系統(tǒng)輔助能投入過(guò)快增長(zhǎng),系統(tǒng)功能運(yùn)行環(huán)境負(fù)載率不斷增加,導(dǎo)致耕地利用系統(tǒng)對(duì)環(huán)境壓力越來(lái)越大,直接或通過(guò)產(chǎn)生負(fù)外部效應(yīng)而間接影響系統(tǒng)各項(xiàng)功能運(yùn)行。直接證實(shí)了耕地多功能研究應(yīng)從耕地利用視角展開(kāi)。(3)利用視角下黃淮海平原耕地三大功能研究表明,不同層次下耕地各功能效應(yīng)差異較大,而具體到研究區(qū)內(nèi)部,且表現(xiàn)出明顯空間分異性。通過(guò)耕地功能層次分析,不僅耕地功能認(rèn)識(shí)更加清晰,功能效應(yīng)提升途徑也更加明確。各層級(jí)耕地生產(chǎn)、固碳、水源涵養(yǎng)功能中,耕地現(xiàn)實(shí)生產(chǎn)能力、耕地現(xiàn)實(shí)固碳能力和耕地有效水源涵養(yǎng)能力才是對(duì)農(nóng)民生活保障、國(guó)家糧食安全、緩解氣候變化、耕地水資源調(diào)控、耕地保護(hù)補(bǔ)償有現(xiàn)實(shí)意義的功能。各功能分別可以通過(guò)進(jìn)行中低產(chǎn)田改造、實(shí)施生態(tài)化土地利用以及減少降水徑流形成等途徑實(shí)現(xiàn)提升。(4)基于利用和需求視角下構(gòu)建的耕地多功能研究框架,本研究提出,耕地保護(hù)補(bǔ)償研究應(yīng)充分考慮區(qū)域耕地功能需求和各功能效應(yīng)實(shí)際發(fā)揮狀況,既不忽視耕地非生產(chǎn)功能價(jià)值,也不過(guò)分夸大其功能效益。推動(dòng)耕地保護(hù)同時(shí)促進(jìn)滿(mǎn)足人類(lèi)當(dāng)前需求的耕地多功能綜合效益發(fā)揮。
[Abstract]:As an important part of terrestrial ecosystem, cultivated land is not only a productive resource, but also an important ecological and social resource. As well as the concept of sustainable development, the multi-function effect of cultivated land has attracted more and more attention and recognition. And the correct understanding, the scientific evaluation of the function effect and its value of cultivated land, will promote the multifunctional utilization of cultivated land. It is of great significance to give full play to the multi-functional comprehensive effect of cultivated land and to realize the protection of cultivated land. Firstly, from the angle of cultivated land utilization and functional demand of cultivated land, this paper constructs a theoretical framework for the study of multi-function of cultivated land. Then, by establishing the corresponding relationship between the higher level cultivated land function and the output of the system, the comprehensive evaluation of the cultivated land function operation effect is made from the angle of input-output. The three functions of cultivated land production, carbon sequestration and water conservation in Huang-Huai-Hai Plain were studied in detail. Finally, a new idea of cultivated land protection and compensation based on functional effect is put forward. The main conclusions of the study are as follows: 1) the multi-function of cultivated land exists objectively, and it is mainly manifested by demand. The main and secondary functions of cultivated land are not clear, the complex relationship between various functions is difficult to be clarified, from the point of view of functional demand of cultivated land to study the multi-function of cultivated land, manifest the dominant function in line with the regional demand objectives. It is helpful to give full play to the comprehensive benefits of the key functions of cultivated land, and to promote the multifunctional utilization and protection of cultivated land. 2) the results of comprehensive evaluation of the multifunctional effects of cultivated land show that the results are from 2000 to 2012. The cultivated land use system in the Huang-Huai-Hai Plain is in a sustainable state and the system auxiliary energy input is increasing too fast. The functional output rate and the density of the function effect of the cultivated land use system are increasing continuously and the cultivated land use system is in a sustainable state. The load rate of system function running environment is increasing, which leads to more and more pressure on the environment of cultivated land utilization system. It directly or indirectly influences the function of the system through the negative external effect, which directly proves that the research on the multifunction of cultivated land should be carried out from the perspective of cultivated land utilization. The three functions of cultivated land in Huang-Huai-Hai Plain were studied from the angle of view. The functional effects of cultivated land under different levels are quite different, but specific to the study area, and show obvious spatial differentiation. Through the functional hierarchy analysis of cultivated land, not only the understanding of cultivated land function is more clear. The ways to improve the function effect are also more clear. In the function of cultivated land production, carbon sequestration and water conservation, the actual production capacity of cultivated land is more clear. The realistic carbon sequestration capacity of cultivated land and the capacity of effective water conservation of cultivated land are the guarantee of farmers' life, the national food security, the mitigation of climate change, and the regulation of cultivated land water resources. The function of cultivated land protection and compensation has practical significance. Each function can be reformed by middle and low yield farmland respectively. Implement ecological land use and reduce precipitation runoff formation to achieve upgrading. 4) based on the perspective of utilization and demand to build a multi-functional research framework of arable land, this study proposed. The study of cultivated land protection and compensation should fully consider the functional demand of regional cultivated land and the actual exertion of each functional effect, and neither ignore the non-productive value of cultivated land. It is not to exaggerate its function benefit, promote cultivated land protection and promote the comprehensive benefit of cultivated land which meets the current needs of human being.
【學(xué)位授予單位】:中國(guó)農(nóng)業(yè)大學(xué)
【學(xué)位級(jí)別】:博士
【學(xué)位授予年份】:2016
【分類(lèi)號(hào)】:F323.211

【相似文獻(xiàn)】

相關(guān)期刊論文 前7條

1 朱逢海,張文山,黃松飛;農(nóng)戶(hù)庭園經(jīng)濟(jì)模式及功能效應(yīng)[J];生態(tài)經(jīng)濟(jì);1995年03期

2 王麗莉;;檸條栽培的功能效應(yīng)及關(guān)鍵技術(shù)[J];現(xiàn)代農(nóng)業(yè)科技;2013年07期

3 ;論長(zhǎng)白山自然保護(hù)區(qū)的綜合功能效應(yīng)[J];農(nóng)村生態(tài)環(huán)境;1998年02期

4 馬安東;;標(biāo)志物的功能效應(yīng)[J];豫西農(nóng)專(zhuān)學(xué)報(bào);1990年02期

5 白靜;;秸稈粉碎覆蓋還田的整體功能效應(yīng)研究[J];現(xiàn)代農(nóng)業(yè)科技;2013年13期

6 ;我國(guó)與發(fā)達(dá)國(guó)家農(nóng)業(yè)有十大差距[J];四川農(nóng)業(yè)科技;2000年08期

7 ;[J];;年期

相關(guān)重要報(bào)紙文章 前1條

1 ;國(guó)際化特色 多功能效應(yīng)[N];現(xiàn)代物流報(bào);2013年

相關(guān)博士學(xué)位論文 前1條

1 陳麗;黃淮海平原耕地多功能效應(yīng)及保護(hù)補(bǔ)償研究[D];中國(guó)農(nóng)業(yè)大學(xué);2016年



本文編號(hào):1370862

資料下載
論文發(fā)表

本文鏈接:http://sikaile.net/shoufeilunwen/jjglbs/1370862.html


Copyright(c)文論論文網(wǎng)All Rights Reserved | 網(wǎng)站地圖 |

版權(quán)申明:資料由用戶(hù)d73bd***提供,本站僅收錄摘要或目錄,作者需要?jiǎng)h除請(qǐng)E-mail郵箱bigeng88@qq.com