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

遼寧省鹽堿地利用問題研究

發(fā)布時(shí)間:2018-08-23 20:51
【摘要】:隨著科學(xué)技術(shù)的日益發(fā)展,鹽堿地不再是不毛之地,而是重要的土地資源,合理的開發(fā)利用鹽堿地與保護(hù)鹽堿地環(huán)境不被破壞對(duì)于我國非常重要。由于特殊的地理環(huán)境,遼寧省濱海地區(qū)存在著大面積的鹽堿地,如離入?诮谋P錦市、營口市,歷史上就屬于重鹽堿土壤地區(qū),大連市的瓦房店、普蘭店以及莊河地區(qū)瀕臨黃渤海,也有大面積的鹽堿地,其土壤是典型的濱海鹽漬土,即整個(gè)土體鹽分含量高,且鹽分組成以氯化物為主。鹽堿地雖然低產(chǎn)甚至是不毛之地,但是其地勢平坦和灌溉之便,又令鹽堿地成為重要的土地后備資源。因而自古以來人類就沒有停止過對(duì)鹽堿地進(jìn)行改良和利用。本論文從鹽堿地利用的研究背景、研究目的和研究意義入手,了解當(dāng)前國內(nèi)外鹽堿地利用現(xiàn)狀及趨勢,分析中國的國情,根據(jù)遼寧省的具體情況,通過調(diào)查,進(jìn)一步分析遼寧省在對(duì)鹽堿地的利用上采取了哪些有效措施。通過分析發(fā)現(xiàn)其中還存在哪些需要進(jìn)一步解決的問題并提出對(duì)策建議,從而更加深刻的認(rèn)識(shí)到鹽堿地資源是一種可持續(xù)發(fā)展的重要資源,有效利用鹽堿地具有非常重要的意義。論文框架:第一章是緒論。對(duì)論文的研究背景、意義與目的、內(nèi)容與框架、方法及創(chuàng)新點(diǎn)等進(jìn)行了論述,并對(duì)國內(nèi)外的相關(guān)研究進(jìn)行了述評(píng)。第二章是相關(guān)概念與理論基礎(chǔ)。對(duì)鹽堿地、鹽堿地利用進(jìn)行了概念界定,并對(duì)論文的理論基礎(chǔ)——可持續(xù)發(fā)展理論與農(nóng)業(yè)技術(shù)推廣理論進(jìn)行了闡述。第三章是遼寧省鹽堿地利用現(xiàn)狀分析。從分布、成因、利用效果、技術(shù)措施以及“渤海糧倉”遼寧項(xiàng)目這幾個(gè)方面對(duì)遼寧省鹽堿地利用現(xiàn)狀進(jìn)行了分析。第四章是遼寧省鹽堿地利用存在問題與原因分析。闡述了遼寧省鹽堿地可持續(xù)利用觀念尚不統(tǒng)一、資金投入不足融資渠道單一、忽視可持續(xù)發(fā)展不重視生態(tài)效益、鹽堿地可持續(xù)利用技術(shù)推廣難度大、鹽堿地資源利用效率低結(jié)構(gòu)不合理五個(gè)存在的問題,并對(duì)原因進(jìn)行了分析。第五章是遼寧省鹽堿地利用對(duì)策建議。提出了培養(yǎng)可持續(xù)利用的觀念、科學(xué)制定鹽堿地的治理規(guī)劃、加強(qiáng)政策與資金的保障、繼續(xù)加大生態(tài)治理力度、有力開展農(nóng)業(yè)技術(shù)推廣工作、大力開發(fā)配套技術(shù)及應(yīng)用模式六項(xiàng)改進(jìn)措施。第六章是結(jié)論與展望。
[Abstract]:With the development of science and technology, saline-alkali land is no longer a barren land, but an important land resource. It is very important for our country to develop and utilize saline-alkali land reasonably and protect the environment of saline-alkali land from being destroyed. Because of the special geographical environment, there is a large area of saline-alkali land in the coastal areas of Liaoning Province, such as Panjin City, Yingkou City, which is close to the entrance to the sea, and Wafangdian in Dalian, historically belonging to the heavy saline-alkali soil area. The Plandian and Zhuanghe areas are close to the Yellow Sea and Bohai Sea, and there is also a large area of saline and alkali land. The soil is a typical coastal saline soil, that is, the whole soil is high in salt content, and the salt composition is mainly chlorinated. Although saline-alkali land has low yield and even barren land, its flat topography and irrigation make saline-alkali land become an important reserve resource of land. Therefore, since ancient times, humans have not stopped the improvement and utilization of saline-alkali land. This paper starts with the research background, purpose and significance of saline-alkali land utilization, understands the current situation and trend of saline-alkali land utilization at home and abroad, analyzes the national conditions of China, and according to the specific situation of Liaoning Province, through investigation, Further analysis of Liaoning Province in the use of saline-alkali land what effective measures. Through the analysis, we find out which problems need to be solved further and put forward some countermeasures, so as to realize that the saline-alkali land resource is an important resource for sustainable development, and it is of great significance to utilize saline-alkali land effectively. The first chapter is introduction. This paper discusses the research background, significance and purpose, content and framework, methods and innovation points of the paper, and reviews the related research at home and abroad. The second chapter is related concepts and theoretical basis. This paper defines the concept of saline-alkali land and its utilization, and expounds the theory of sustainable development and agricultural technology extension. The third chapter is the present situation analysis of saline-alkali land utilization in Liaoning Province. The present situation of saline-alkali land utilization in Liaoning Province is analyzed from the following aspects: distribution, cause of formation, utilization effect, technical measures and Liaoning project of "Bohai granary". The fourth chapter is the analysis of the problems and causes of saline-alkali land utilization in Liaoning Province. This paper expounds that the concept of sustainable utilization of saline-alkali land in Liaoning Province is not unified, the financing channel is not enough, the sustainable development is ignored and ecological benefit is ignored, and it is difficult to popularize the technology of sustainable utilization of saline-alkali land. There are five problems in low utilization efficiency of saline-alkali land resources, and the causes are analyzed. The fifth chapter is the countermeasures and suggestions of saline-alkali land utilization in Liaoning Province. This paper puts forward the idea of cultivating sustainable utilization, scientifically drawing up the plan of saline-alkali land management, strengthening the guarantee of policies and funds, continuing to increase the intensity of ecological management, and carrying out agricultural technology extension work. Vigorously develop supporting technology and application mode of six improvement measures. The sixth chapter is the conclusion and prospect.
【學(xué)位授予單位】:吉林大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:S156.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 李汶蔚;董先治;陳詩琪;劉美麟;彭夢(mèng)楠;;吉林省鹽堿地作物經(jīng)濟(jì)效益與生態(tài)效益研究[J];經(jīng)營管理者;2015年16期

2 張鵬銳;李旭霖;崔德杰;胡景田;;濱海重鹽堿地不同土地利用方式的水鹽特征[J];水土保持學(xué)報(bào);2015年02期

3 胡一;韓霽昌;張揚(yáng);;鹽堿地改良技術(shù)研究綜述[J];陜西農(nóng)業(yè)科學(xué);2015年02期

4 徐慧;黃賢金;;土地利用政策與鹽堿地農(nóng)田水利設(shè)施管理農(nóng)戶參與意愿研究[J];中國人口.資源與環(huán)境;2014年03期

5 姜麗芳;;鹽堿地改造項(xiàng)目績效分析[J];農(nóng)業(yè)技術(shù)與裝備;2013年22期

6 郭世乾;崔增團(tuán);傅親民;;甘肅省鹽堿地現(xiàn)狀及治理思路與建議[J];中國農(nóng)業(yè)資源與區(qū)劃;2013年04期

7 阿吉艾克拜爾;邵孝侯;常婷婷;李維;徐佳佳;張金鑫;;我國鹽堿地改良技術(shù)和方法綜述[J];安徽農(nóng)業(yè)科學(xué);2013年16期

8 枚德新;張德順;王振;;濱海鹽堿地生態(tài)修復(fù)現(xiàn)狀及趨勢[J];中國農(nóng)學(xué)通報(bào);2013年05期

9 張培通;李春宏;郭文琦;張恒友;;江蘇省構(gòu)建沿海灘涂鹽堿地甜高粱產(chǎn)業(yè)技術(shù)體系的設(shè)想[J];江西農(nóng)業(yè)學(xué)報(bào);2013年02期

10 呂曉;徐慧;李麗;趙栻泰;;鹽堿地農(nóng)業(yè)可持續(xù)利用及其評(píng)價(jià)[J];土壤;2012年02期

,

本文編號(hào):2199884

資料下載
論文發(fā)表

本文鏈接:http://sikaile.net/kejilunwen/nykj/2199884.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cf55a***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