基于地表覆蓋分類的生態(tài)環(huán)境人為干擾度分析——以北京市為例
[Abstract]:Based on the high precision ground cover classification data of Beijing in 2007 and 2015, the artificial disturbance classification system based on land cover classification is constructed, and the synthetic artificial disturbance index model based on area weight is adopted. From the administrative boundary, grid and main function area scale, the degree of human disturbance and its dynamic change of the ground cover in Beijing are quantitatively analyzed and evaluated. The results are as follows: 1) from 2007 to 2015, the coverage area of severe disturbance type in Beijing decreased significantly, and the surface area of other types of disturbance all showed an increasing trend, among which the surface coverage area of degree interference type and complete interference type increased most significantly. 1.97% and 1.44%, respectively; 2) the spatial distribution of anthropogenic disturbance index is bounded by Taihang mountain range and Yanshan mountain range, the north and southwest regions of the foothills are lower, the southeast area and the southwest of Yanqing county, the middle area of Miyun county are higher, and the eastern urban area is the same. Xicheng District is the spatial pattern that the center diffuses to the periphery; 3) the human disturbance index of Beijing is decreasing, and the human disturbance index is higher in Dongcheng District, Xicheng District, Fengtai District and Chaoyang District, but lower in Huairou District, Mentougou District and Miyun County, and in Shijingshan District. In Daxing area and Tongzhou area, the anthropogenic disturbance index changed greatly, reaching 0.140-0.15 and -0.11 respectively. 4) the human disturbance index of each main function area in Beijing is in order of capital core function area, urban function development area, new urban development area, ecological conservation development area and forbidden development zone. The change of anthropogenic disturbance index in the two periods of the new urban development area is-0. 10. On the whole, the change of human disturbance index in each main function area from 2007 to 2015 is basically in line with the planning of Beijing main function area.
【作者單位】: 蘭州交通大學(xué)測繪與地理信息學(xué)院;甘肅省地理國情監(jiān)測工程實驗室;國家測繪產(chǎn)品質(zhì)量檢驗測試中心;中國測繪科學(xué)研究院;
【基金】:城市空間信息工程北京市重點(diǎn)實驗室經(jīng)費(fèi)資助項目(2016102) 融合高分辨率衛(wèi)星影像與多源空間數(shù)據(jù)的地理國情普查城市地物自動分類方法(41371406) 專題性地理國情監(jiān)測(B1605) 京津冀地區(qū)基礎(chǔ)國情綜合分析(E1610)資助
【分類號】:X171.1
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