發(fā)布時(shí)間：2018-01-20 05:53

  本文關(guān)鍵詞： 土壤磁性 土壤污染 礦物類型 環(huán)境意義 天池景區(qū) 新疆　出處：《干旱區(qū)研究》2017年06期 　論文類型：期刊論文

【摘要】：以新疆天山天池景區(qū)為研究區(qū),運(yùn)用環(huán)境磁學(xué)方法,對(duì)景區(qū)內(nèi)81個(gè)表土(0~10 cm)樣品的磁學(xué)參數(shù)進(jìn)行系統(tǒng)測(cè)定,分析土壤磁學(xué)特征及其環(huán)境指示意義。結(jié)果表明:(1)天池景區(qū)土壤磁性礦物含量適中;以亞鐵磁性礦物(磁鐵礦)為主導(dǎo),同時(shí)伴有少量不完全反鐵磁性礦物;土壤磁性礦物顆粒以穩(wěn)定單疇(SSD)粗顆粒和超順磁性(SP)顆粒混合組成,同時(shí)含有少量的多疇(MD)粗顆粒。(2)研究區(qū)表土磁性增強(qiáng)主要受自然成土過(guò)程和旅游活動(dòng)影響;旅游活動(dòng)區(qū)土壤亞鐵磁性礦物含量高于未干擾區(qū),土壤顆粒以較粗的SSD顆粒為主,SP顆粒含量相對(duì)少,表明旅游活動(dòng)對(duì)景區(qū)土壤產(chǎn)生了一定影響,而未干擾區(qū)土壤磁性受自然成土過(guò)程影響較大。(3)磁性參數(shù)空間分布表明,土壤亞鐵磁性礦物含量沿景區(qū)交通線、環(huán)湖的北部、西北部和西南部呈現(xiàn)相對(duì)高值,說(shuō)明景區(qū)土壤主要受到旅游交通和專門(mén)服務(wù)設(shè)施活動(dòng)的干擾。綜合來(lái)看,土壤磁學(xué)方法能夠初步圈定旅游干擾對(duì)景區(qū)土壤污染的程度及范圍,可為天池景區(qū)土壤環(huán)境污染監(jiān)測(cè)及決策部門(mén)進(jìn)行旅游環(huán)境管理提供參考依據(jù)。
[Abstract]:The magnetic parameters of 81 topsoil (0 ~ 10 cm) samples in Tianchi Scenic area of Tianshan Mountain Xinjiang were systematically determined by environmental magnetics method. The characteristics of soil magnetism and its environmental significance were analyzed. The results showed that the content of magnetic minerals in Tianchi scenic spot was moderate. Ferromagnetic minerals (magnetite) are dominant, accompanied by a small amount of incomplete antiferromagnetic minerals; The soil magnetic mineral particles are composed of stable single domain SSDs coarse particles and superparamagnetic spp particles. The magnetic enhancement of surface soil in the study area is mainly affected by natural soil-forming process and tourism activity. The content of ferrous magnetic minerals in the soil of tourist activity area was higher than that in the undisturbed area, and the content of SP particles was relatively low in the coarse SSD particles, which indicated that tourism activities had a certain influence on the soil of scenic area. The spatial distribution of magnetic parameters of soil in undisturbed area is greatly affected by the natural soil-forming process. The results show that the content of soil ferromagnetic minerals is along the traffic line of scenic spot and the northern part of the lake. Northwest and southwest show relatively high values, indicating that the scenic area soil is mainly affected by tourism traffic and special service facilities activities. The method of soil magnetism can preliminarily delineate the extent and scope of soil pollution caused by tourism disturbance in scenic spots, and can provide a reference basis for the monitoring of soil environmental pollution in Tianchi scenic spot and the management of tourism environment by decision-making departments.
【作者單位】： 新疆師范大學(xué)地理科學(xué)與旅游學(xué)院;新疆干旱區(qū)湖泊環(huán)境與資源重點(diǎn)實(shí)驗(yàn)室;新疆大學(xué)資源與環(huán)境學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(41461033,41161029) 新疆師范大學(xué)“十三五”校級(jí)重點(diǎn)學(xué)科地理學(xué)資助
【分類號(hào)】：S153.2;X53
【正文快照】： 旅游業(yè)的快速發(fā)展給社會(huì)經(jīng)濟(jì)帶來(lái)巨大收益的同時(shí),伴隨著由旅游需求不斷增加和景區(qū)數(shù)量與規(guī)模不斷擴(kuò)大帶來(lái)的許多不利影響。游客的急劇增長(zhǎng)需要消耗大量景區(qū)內(nèi)外的食物、能源和生態(tài)資源,同時(shí)排放很多污染物,造成大氣、水體、噪聲和土壤污染以及植被景觀格局變化等生態(tài)環(huán)境問(wèn)題[，

本文編號(hào)：1447095