基于3S技術(shù)的開孔河流域人居環(huán)境適宜性評價
發(fā)布時間:2018-04-24 00:02
本文選題:土地利用 + 遙感。 參考:《農(nóng)業(yè)工程學(xué)報》2017年09期
【摘要】:該文以開孔河流域為研究區(qū),選擇地形地貌、氣候、水文、植被、土地利用/土地覆蓋等自然生態(tài)環(huán)境因子,運用3S技術(shù),在1 km×1 km的柵格尺度上,進(jìn)行投影轉(zhuǎn)換、遙感解譯、信息提取與分析,定量定性地反映了開孔河流域人居環(huán)境適宜性的空間規(guī)模與分布特征。結(jié)果表明:1)開孔河流域的人居環(huán)境指數(shù)介于4.4~83.9之間,人居環(huán)境適宜性從研究區(qū)中部平原區(qū)向西北天山高山區(qū)和東南塔克拉瑪干沙漠區(qū)逐漸遞減,研究區(qū)內(nèi)大部分地區(qū)的人類生產(chǎn)活動受到自然條件的約束與限制。2)根據(jù)適宜性指數(shù)的大小整個開孔河流域可分為高適宜區(qū)、適宜區(qū)、一般適宜區(qū)、不適宜區(qū)以及最不適宜區(qū)5個區(qū)域,其面積分別為124、2456、2 526、23 104、46 301 km~2,分別占全研究區(qū)面積的0.2%、3.3%、3.4%、31%、62.1%。3)高適宜區(qū)、適宜區(qū)與一般適宜區(qū)的面積總和占整個研究區(qū)總面積的6.9%,而研究區(qū)總?cè)丝诘?8.8%居住在這6.9%區(qū)域內(nèi)。不適宜區(qū)與最不適宜區(qū)面積總和占研究區(qū)總面積的93.1%,總?cè)丝诘?.2%分布在這93.1%的區(qū)域內(nèi)。研究結(jié)果表明,開孔河流域自然環(huán)境極其惡劣,生態(tài)環(huán)境質(zhì)量相當(dāng)脆弱,大部分地區(qū)受到自然環(huán)境條件的制約。所以在今后的發(fā)展規(guī)劃當(dāng)中需要結(jié)合當(dāng)?shù)刈匀画h(huán)境情況與自然資源承載力,合理的進(jìn)行城市規(guī)劃與新農(nóng)村建設(shè)。
[Abstract]:In this paper, taking the Kaikang River Basin as the study area, the authors select the natural ecological and environmental factors, such as topography, climate, hydrology, vegetation, land use / land cover and so on, and use 3s technology to carry out projection conversion and remote sensing interpretation on the grid scale of 1 km 脳 1 km. The information extraction and analysis reflect quantitatively and qualitatively the spatial scale and distribution characteristics of the suitability of human settlements in the Kaikang River Basin. The results showed that the habitat environmental index of the Kaikang River Basin was between 4.4 and 83.9, and the habitat suitability decreased gradually from the plain region in the central part of the study area to the alpine region in the northwest Tianshan Mountains and the Taklimakan desert region in the southeast. The human production activities in most areas of the study area are restricted and restricted by natural conditions. (2) according to the size of suitability index, the whole Kaikang River basin can be divided into high suitable area, suitable area, general suitable area, The area of the unsuitable area and the least suitable area is 124- 2456 / 2 / 2526/ 23 / 104/ 46.301km2 respectively, accounting for 0.2 / 3 / 3 / 3 / 3 / 3 of the total area of the study area respectively. The total area of the suitable area and the general suitable area accounts for 6.9% of the total area of the study area, while 98.8% of the total population of the study area lives in the area of 6.9%. The total area of the unsuitable area and the least suitable area is 93. 1% of the total area of the study area, and 1.2% of the total population is distributed in the region of 93. 1%. The results show that the natural environment of Kaikang River basin is extremely bad and the ecological environment quality is very fragile, and most areas are restricted by the natural environment conditions. Therefore, in the future development planning, it is necessary to combine the local natural environment and natural resources carrying capacity, reasonable urban planning and new rural construction.
【作者單位】: 新疆大學(xué)資源與環(huán)境科學(xué)學(xué)院新疆大學(xué)綠洲生態(tài)重點實驗室;中國科學(xué)院遙感與數(shù)字地球研究所喀什研究中心;
【基金】:自治區(qū)研究生教育創(chuàng)新計劃科研創(chuàng)新項目(XJGRI2014021) 中國國家自然科學(xué)基金(31360200,31270742) 德國大眾EcoCAR基金項目(Az.:88497)聯(lián)合資助
【分類號】:X821
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本文編號:1794220
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