本文選題：水土保持區(qū)劃　切入點(diǎn)：指標(biāo)體系　出處：《北京林業(yè)大學(xué)》2016年碩士論文

【摘要】：近年來,本溪市資源開發(fā)利用的強(qiáng)度加大,人為擾動(dòng)地表面積增加,水土流失日益嚴(yán)重,因此,加強(qiáng)本溪市水土保持區(qū)劃研究,對(duì)于宏觀指導(dǎo)該區(qū)域水土保持工作具有重要意義。本研究在充分調(diào)查本溪市各區(qū)的自然條件、水土流失及社會(huì)經(jīng)濟(jì)條件的基礎(chǔ)上,構(gòu)建本溪市水土保持區(qū)劃指標(biāo)體系,運(yùn)用SPSS軟件采用主成分分析法和聚類分析法對(duì)本溪市以縣級(jí)為單位進(jìn)行區(qū)劃,根據(jù)分析結(jié)果將本溪市劃分為三個(gè)水土保持區(qū),分別為本溪東部山地丘陵水源涵養(yǎng)減災(zāi)區(qū)、本溪中部低山丘陵水質(zhì)生態(tài)維護(hù)區(qū)和本溪西部丘陵生態(tài)維護(hù)區(qū)。此外,還對(duì)3個(gè)水土保持分區(qū)進(jìn)行了調(diào)查,針對(duì)各分區(qū)特點(diǎn)提出其水土保持工作方向。研究具體結(jié)果如下：(1)本溪市水土保持區(qū)劃指標(biāo)體系。通過對(duì)本溪市自然概況、社會(huì)經(jīng)濟(jì)和水土流失等情況調(diào)查分析,確定了以下水土保持區(qū)劃指標(biāo),分別是平均海拔、相對(duì)高差、多年平均氣溫、≥10℃積溫、多年平均降雨量、汛期降雨量占全年降雨量比、多年平均風(fēng)速、多年平均大風(fēng)日數(shù)、林草植被覆蓋率、人口密度、農(nóng)村人均純收入、人均GDP、第一產(chǎn)業(yè)產(chǎn)值比例、第二產(chǎn)業(yè)產(chǎn)值比例、耕地占土地面積比例、坡耕地占耕地面積比例、林地占土地面積比例、城鎮(zhèn)村及工礦用地、水土流失面積比例、侵蝕強(qiáng)度、中度以上水土流失面積比例和溝壑密度等21個(gè)指標(biāo)。提取的這些指標(biāo)可較全面體現(xiàn)本溪市區(qū)域特征。(2)本溪市水土保持區(qū)劃分區(qū)。本研究將本溪市的桓仁滿族自治縣劃為本溪東部山地丘陵水源涵養(yǎng)減災(zāi)區(qū)：將本溪滿族自治縣劃為本溪中部低山丘陵水質(zhì)生態(tài)維護(hù)區(qū)；將明山區(qū)、平山區(qū)、溪湖區(qū)和南芬區(qū)劃為本溪西部丘陵生態(tài)維護(hù)區(qū)3個(gè)分區(qū),得到了水土保持分區(qū)圖。(3)水土保持分區(qū)工作方向。本研究經(jīng)過調(diào)查分析得到本溪市東部山地區(qū)以增強(qiáng)徑流調(diào)節(jié)能力,水源涵養(yǎng)和保護(hù)表土資源防止山地災(zāi)害等為水土保持重點(diǎn)；本溪市中部低山丘陵區(qū)以封禁治理、工程整地、布設(shè)梯田以及控制人為破壞等措施為水土流失防治重點(diǎn)；本溪市西部丘陵區(qū)以保護(hù)水土資源、裸地生態(tài)修復(fù)和城市美化等為水土保持重點(diǎn)。本文的創(chuàng)新點(diǎn)：本研究首次構(gòu)建本溪市水土保持區(qū)劃指標(biāo)體系,完成省級(jí)與地級(jí)市區(qū)劃的鏈接,更深入的結(jié)合本溪市區(qū)域特點(diǎn)針對(duì)差異性地區(qū)制定了水土保持工作方向,填補(bǔ)了本溪市水土保持區(qū)劃空白。
[Abstract]:In recent years, the intensity of exploitation and utilization of resources in Benxi has increased, the artificial disturbance surface area has increased, and soil erosion has become increasingly serious. Therefore, the study on the regionalization of soil and water conservation in Benxi City has been strengthened.It is of great significance to guide the work of soil and water conservation in this area macroscopically.Based on the investigation of the natural conditions, soil erosion and social and economic conditions in Benxi, the index system of soil and water conservation zonation in Benxi was constructed.Using SPSS software, principal component analysis and cluster analysis were used to divide Benxi into three soil and water conservation areas according to the results of the analysis, which were divided into three areas of water conservation and disaster reduction in the eastern mountain and hilly region of Benxi.Central Benxi low hill water quality ecological maintenance area and western Benxi hill ecological maintenance area.In addition, three soil and water conservation zones were investigated, and the working direction of soil and water conservation was put forward according to the characteristics of each zone.The results are as follows: 1) the index system of soil and water conservation regionalization in Benxi city.Through the investigation and analysis of the natural situation, social economy and soil erosion in Benxi City, the following indexes of soil and water conservation regionalization are determined: average elevation, relative height difference, annual mean temperature, accumulated temperature 鈮，

本文編號(hào)：1717798