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| 农牧交错区草地面积动态变化研究——以内蒙古太仆寺旗为例 | |
| 引用本文： | 魏雯,师尚礼,胡涛,苗宝成.农牧交错区草地面积动态变化研究——以内蒙古太仆寺旗为例[J].草原与草坪,2012,32(1):29-33. |
| 作者姓名： | 魏雯 师尚礼 胡涛 苗宝成 |
| 作者单位： | 1. 甘肃农业大学草业学院／草业生态系统教育部重点实验室／甘肃省草业工程实验室／中一美草地畜牧业可持续发展研究中心,甘肃兰州,730070 2. 内蒙古草原勘察设计院,内蒙古呼和浩特,010010 3. 兰州市园林设计院,甘肃兰州,730000 |
| 基金项目： | 国家重点基础研究计划项目，内蒙古太仆寺旗典型草原放牧管理优化模式研究项目 |
| 摘 要： | 利用1986,2000和2009年3个年份点的遥感影像,在RS与GIS支持下,解译提取内蒙古太仆寺旗20余年草地空间信息,分析该区草地时空动态及其景观格局变化。结果表明:1986～2000年,草地面积减少307.67km2,且退化严重,大量草地转化为耕地,生态环境趋于恶化;2000～2009年,草地面积有所增加,增加的部分主要来自退耕地;20余年来,低地盐化草甸持续增加,低湿地草甸快速减少。基于分析结果,指出草地退化是自然因素与人类活动共同作用的结果,自然因素起到一定作用,人类活动干扰则是草地动态变化的主要驱动力。 |
| 关 键 词： | 太仆寺旗 草地面积 动态变化 |
Research on dynamic change of grassland area in ecotone between agriculture and animal husbandry regions:A case study in Taipusi,Inner Mongolia |
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| WEI Wen,SHI Shang-li,HU Tao,MIAO Bao-cheng.Research on dynamic change of grassland area in ecotone between agriculture and animal husbandry regions:A case study in Taipusi,Inner Mongolia[J].Grassland and Turf,2012,32(1):29-33. | |
| Authors: | WEI Wen SHI Shang-li HU Tao MIAO Bao-cheng |
| Institution: | 1.College of Pratacultural Science,Gansu Agricultural University/Key Laboratory of Grassland Ecosystem,Ministry of Education/Pratacultural Engineering Laboratory of Gansu Province/Sino-U.S. Centers for Grazingland Ecosystem Sustainability Lanzhou 730070,China 2.Grassland Survey and Design Institute of Inner Mongolia,Hohhot 010010,China; 3.Landscape Design Institute of Lanzhou,Gansu Lanzhou 730000,China) |
| Abstract: | By using three-period(1986,2000,2009) remote sensing images,with the support of RS and GIS,spatial information of grassland landscape in Taipusi from 1986 to 2009 is extracted,spatio-temporal dynamics of grassland and change of grassland landscape patterns are analyzed.The results showed that from 1986 to 2000,the areas of grassland decreased about 307.67 km2 and degraded seriously.Many grasslands are converted into cropland.The ecological environment has became deterioration.From 2000 to 2009,grassland areas have increased,the parts of the increase areas are mainly from cropland.In the past twenty years,the low salt meadow continued to increase,and the low land meadow decreased rapidly.Based on the analysis above,human activities and natural factors are the main factors that resulted in the degradation of the grassland.Natural factor takes some driving acting,but human actions are the dominating driving power. |
| Keywords: | Taipusi grassland area dynamic change |
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