發(fā)布時(shí)間：2018-03-22 22:02

  本文選題：松嫩高平原　切入點(diǎn)：縣域　出處：《地理科學(xué)》2017年08期 　論文類型：期刊論文

【摘要】：以黑龍江省巴彥縣為研究區(qū),基于研究區(qū)DEM數(shù)據(jù),運(yùn)用土地利用類型的分布指數(shù)、土地利用結(jié)構(gòu)的信息熵、均衡度和優(yōu)勢(shì)度,明確研究區(qū)土地利用空間格局的地形梯度特征及地形因子對(duì)土地利用空間格局的影響。結(jié)果表明:(1)研究區(qū)土地利用空間格局在地形因子的作用下存在明顯的梯度特征,旱地、水田、草地、水域、建設(shè)用地及其他用地主要分布在較低地形級(jí)別區(qū),林地主要分布在較高地形級(jí)別區(qū)。(2)除林地以外,其他土地利用類型分布的優(yōu)勢(shì)地形位均位于較低地形級(jí)別區(qū),林地分布的優(yōu)勢(shì)地形位位于較高地形級(jí)別區(qū),各土地利用類型分布的優(yōu)勢(shì)區(qū)域不盡相同。(3)研究區(qū)土地利用結(jié)構(gòu)的信息熵及均衡度變化趨勢(shì)相同,優(yōu)勢(shì)度的變化趨勢(shì)與信息熵、均衡度的變化趨勢(shì)相反,土地利用空間格局與地形因子具有顯著的相關(guān)性。
[Abstract]:Based on the DEM data of Bayan County, Heilongjiang Province, the distribution index of land use type, the information entropy, equilibrium degree and dominance of land use structure were used. The effects of topographic factors on the spatial pattern of land use in the study area were clarified. The results showed that the spatial pattern of land use in the study area had obvious gradient characteristics under the action of topographic factors. Paddy fields, grasslands, water areas, construction sites and other land use are mainly distributed in lower topographic areas, and woodlands are mainly distributed in higher topographic grade areas, with the exception of forestland, The dominant topographic sites of other land use types are located in lower topographic areas, and the dominant topographic sites of forest land distribution are located in higher topographic levels. The variation trend of information entropy and equilibrium degree of land use structure is the same, and the change trend of dominance degree is opposite to that of information entropy and equilibrium degree. The spatial pattern of land use has a significant correlation with topographic factors.
【作者單位】： 東北大學(xué)文法學(xué)院土地管理研究所;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(41571165,41071346) 中央高�；�本科研業(yè)務(wù)費(fèi)(N161406002)資助~~
【分類號(hào)】：F301.24
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本文編號(hào)：1650571