本文關(guān)鍵詞：1976年以來北洛河流域土地利用變化對(duì)人類活動(dòng)程度的響應(yīng)，由筆耕文化傳播整理發(fā)布。

1976年以來北洛河流域土地利用變化對(duì)人類活動(dòng)程度的響應(yīng)

Response analysis of land use change to the degree of human activities in Beiluo River basin since 1976

[1] [2] [3] [4] [5] [6]

WU Linna^1＇2, YANG Shengtian^1, LIU Xiaoyan^3, LUO Ya^1＇4, ZHOU XU^1＇5, ZHAO Haigen^1 （I. State Key Laboratory of Remote Sensing Science, School of Geography, Beijing Normal

[1]遙感科學(xué)國家重點(diǎn)實(shí)驗(yàn)室,北京師范大學(xué)地理學(xué)與遙感科學(xué)學(xué)院,環(huán)境遙感與數(shù)字城市北京市重點(diǎn)實(shí)驗(yàn)室,北京100875:; [2]貴州大學(xué)資源與環(huán)境工程學(xué)院,貴陽550025; [3]黃河水利委員會(huì),鄭州450003; [4]貴州師范大學(xué)地理與環(huán)境科學(xué)學(xué)院,貴陽550001; [5]西華師范大學(xué)國土資源學(xué)院,四川南充637009

文章摘要：土地利用變化是反映人類活動(dòng)程度的重要因子，分析土地利用時(shí)空變化規(guī)律，是揭示人類活動(dòng)程度的有效方式。在遙感和地理信息系統(tǒng)技術(shù)的支持下，采用人機(jī)交互圖像處理方法獲取北洛河流域1976年、1998年和2010年土地利用數(shù)據(jù)；從土地利用變化速度、轉(zhuǎn)移方向和土地利用程度方面，全面分析1976年以來北洛河流域人類活動(dòng)作用下的土地利用時(shí)空變化規(guī)律。結(jié)果表明：①1976．1998年和1998-2010年間北洛河流域綜合土地利用動(dòng)態(tài)度從0．61增加到6．66；耕地和草地面積減少，，減小速度分別從2．00％和2．69％增加到26．20％和23．33％，林地和城鄉(xiāng)工礦居民用地面積增加，前者增加速度從5．93％增到59．68％，后者增加速度從6．59％減小到3．52％。②兩個(gè)時(shí)段土地利用類型轉(zhuǎn)移方向都呈現(xiàn)出耕地和草地主要轉(zhuǎn)化為林地，少部分耕地轉(zhuǎn)化為城鄉(xiāng)工礦居民用地的特點(diǎn)；③流域各縣土地利用程度綜合變化指數(shù)從-2-1之間，擴(kuò)大為．27～4之間。證明流域內(nèi)人類活動(dòng)對(duì)自然環(huán)境的影響逐漸增大；主要表現(xiàn)為耕地、草地、林地和城鄉(xiāng)工礦居民用地的相互轉(zhuǎn)化；影響區(qū)域主要分布在流域上游吳旗縣、富縣、甘泉、黃陵縣和洛川縣；而人類活動(dòng)作用導(dǎo)致的林地面積增大程度遠(yuǎn)遠(yuǎn)大于耕地和草地面積減小和城鄉(xiāng)工礦居民用地面積增加程度。

Abstr：Land use change as an important factor reflects the degree of human activities. Analysis of spatial-temporal change of land use is an effective way to reveal the degree of land use change. Based on the remote sensing and GIS, the authors used man computer interactive image processing methods to acquire the land use data in 1976, 1998 and 2010, and analyzed the spatial-temporal variation of land use in Beiluo River basin from the rate of land use change, the direction of land use transformation, and the degree of land use. The results can be obtained as follows. （1） The integrated dynamic degree of land use increased from 0.61 during 1976-1998 to 6.66 during 1998-2010, the area of arable land and grassland decreased gradually, the rate was increased from 2.00% and 2.69% to 26.20% and 23.33% respectively, while the area of forest land and residential land increased gradually, the rate of the former increased from 5.93% during 1976-1998 to 59.68% during 1998-2010, and that of the latter decreased from 6.59% during 1976-1998 to 3.52% during 1998-2010. （2） The direction of land use change showed similar characteristics during the two periods. Forest land was converted from arable land and grassland, and a small part of residential land was converted from arable land. （3） The integrated degree of land use change ranged from-2-1 during 1976-1998 to -27-4 during 1998-2010. The authors proved that the impact of human activities on the natural environmental showed increasing trends, that arable land, grassland, forestland and residential land were mainly converted, that affected areas were mainly distributed in the upper basin, i.e., Wuqi county, Fuxian county, Ganquan county, Huangling county and Luochuan

文章關(guān)鍵詞：

Keyword：:land use change, human activities Beiluo River basin

課題項(xiàng)目：國家“十二五”科技支撐計(jì)劃課題（2012BAB02800）;水利部公益項(xiàng)目（201101037）;中央高�；究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)[Foundation：NationalKeyTechnologiesR＆DProgram,No.2012BAB02800;PublicWelfareFoundationoftheMinistryofWaterResourcesofChina,No.201101037;TheFundamentalResearchFundsfortheCentralUniversities]

  本文關(guān)鍵詞：1976年以來北洛河流域土地利用變化對(duì)人類活動(dòng)程度的響應(yīng)，由筆耕文化傳播整理發(fā)布。