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当前位置: 首页 > 文章 > 近40a玛纳斯河流域典型土地利用变化特征与趋势分析 新疆农业科学 2016,53 (10) 1914-1922
Position: Home > Articles > Process,Status and Trend of Typical Land Sse/Cover Change in Manas River Basin from 1976-2015 Xinjiang Agricultural Sciences 2016,53 (10) 1914-1922

近40a玛纳斯河流域典型土地利用变化特征与趋势分析

作  者：
朱磊;张丽;王新军
单  位：
新疆农业大学草业与环境科学学院/新疆土壤与植物生态过程重点实验室
关键词：
土地利用变化;绿洲;状态与趋势;玛纳斯河流域
摘  要：
【目的】分析玛纳斯河流域典型土地利用/覆被变化特征,为该区域土地资源合理规划与开发提供科学参考。【方法】基于多源遥感影像,运用GIS技术和土地利用变化模型,重建玛纳斯河流域典型绿洲区近40a土地利用/覆被变化过程,并定量分析变化的状态与趋势。【结果】1975~2015年,研究区内占主导的土地利用/覆被类型始终为耕地、草地和未利用地。研究时段末期,耕地成为研究区面积最大的地类。研究区土地利用综合状态与趋势指数从初期的0.48增至末期的0.62,整体为0.75,面积净变化指数和综合变化指数均为先减小后增加,但仍未达到研究初期水平。各地类在研究时段内均呈现阶段性非平衡态势,耕地、林地、建设用地和未利用地在研究时段中期和末期呈极端不平衡态势。【结论】近40 a来,研究区土地利用发生较大变化,耕地的迅速扩张和林地、草地的减少是其最显著的特征。整个时段内,区域土地利用/覆被总体处于不平衡状态,四个子时段呈现由准平衡状态向极端不平衡状态转变的趋势。
译  名：
Process,Status and Trend of Typical Land Sse/Cover Change in Manas River Basin from 1976-2015
作  者：
ZHU Lei;ZHANG Li;WANG Xin-jun;College of Pratacultural and Environmental Sciences,Xinjiang Agricultural University/Xinjiang Key Laboratory of Soil and Plant Ecological Processes;
关键词：
land use/cover change;;oasis;;process and trend;;Manas River Basin
摘  要：
【Objective】He purpose of this study is to analyze the characteristics of land use and cover change( LUCC) in typical oasis of Manas River Basin.【Method】Based on remote sensing images in 1976,1990,2000,2007 and 2015,spatial data about LUCC were obtained in this study with visual interpretation.Then the characteristics of LUCC were quantified using process and trend models. 【Result】During 1976-2015,cultivated land,grassland and unused land always accounted for the largest area proportion in the study area. In 2015,cultivated land has become the largest land use type in area. Pt increased from 0. 48 in 1976-1990 to 0. 62 in 2007-2015. Meanwhile,Ss and Sa were reduced after the first increase,but has not yet reached the level of initial period. All land use types showed a temporary imbalanced status in different periods. Extreme imbalanced status appeared in the mid and late period for cultivated land,wood land,construction land and unused land.【Conclusion】Land use/cover has changed significantly in the past four decades with the characteristics of rapid expansion of cultivated land and the straight reducing of wood land and grass land. LUCC in study area showed an imbalanced status in the entire period,and presented a trend from quasi-balanced to imbalanced and extreme imbalanced status.

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