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| 基于遥感的2000－2009年三江平原北部耕地变化特征分析 | |
| 引用本文： | 杜国明,李 昀,于凤荣,张树文,杨凤海.基于遥感的2000－2009年三江平原北部耕地变化特征分析[J].农业工程学报,2012,28(1):225-229. |
| 作者姓名： | 杜国明 李 昀 于凤荣 张树文 杨凤海 |
| 作者单位： | 1. 东北农业大学资源与环境学院,哈尔滨,150030 2. 黑龙江农垦科学院科技情报研究所,哈尔滨,150036 3. 中国科学院东北地理与农业生态研究所,长春,130012 |
| 基金项目： | 黑龙江省教育厅自然科学项目（11541026）；东北农业大学科学研究基金（2009 |
| 摘 要： | 该文以三江平原北部为研究区,基于遥感数据分析2000-2009年该区域耕地变化特征,旨在为土地整治、农田水利工程建设等耕地资源开发利用提供依据。结果显示:耕地面积由214.31增加至285.10万hm2,垦殖率升至67.3%,新增耕地主要为旱地;共有73.64万hm2土地被垦殖为耕地,主要来源为沼泽地、林地和草地,而同期退耕面积仅为2.84万hm2;58.67万hm2旱地转换为水田,9.06万hm2水田转换为旱地;水田呈现出集中分布的格局,占耕地总面积的比重升至30.10%;位于研究区东部北部的县市耕地增加较多,而位于西部南部的县市耕地增加的较少;今后该区域在农业发展特别是农田水利建设过程中,应加强水土资源优化配置研究,并主要通过土地整治来增加有效耕地面积。 |
| 关 键 词： | 土地利用 农业 优化 三江平原北部 耕地 垦殖率 |
| 收稿时间： | 2011/4/13 0:00:00 |
| 修稿时间： | 2011/12/9 0:00:00 |
Change characteristics analysis of farmland in Northern Sanjiang Plain in 2000-2009 based on remote sensing |
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| Du Guoming,Li Yun,Yu Fengrong,Zhang Shuwen and Yang Fenghai.Change characteristics analysis of farmland in Northern Sanjiang Plain in 2000-2009 based on remote sensing[J].Transactions of the Chinese Society of Agricultural Engineering,2012,28(1):225-229. | |
| Authors: | Du Guoming Li Yun Yu Fengrong Zhang Shuwen and Yang Fenghai |
| Institution: | 1(1.Resources and Environmental Sciences School Northeast Agricultural University,Harbin 150030,China;2.The Institute of Scientific and Technical Information,Heilongjiang Academy of Land Reclamation Region,Harbin 150036,China;3.Northeast Institute of Geography and Agricultural Ecology,Chinese Academy of Sciences,Changchun 130012,China) |
| Abstract: | Based on the remote sensing data, change characteristics of farmland at the Northern Sanjiang Plain in 2000-2009 was analyzed, aiming to provide the basis for land remediation, construction of farmland water conservancy, land resource development and utilization. The results showed that the area of farmland raised from 214.31×104 to 285.10×104 hm2. The reclamation ratio rose to 67.3% and the new increased land was drought land mainly. 73.64×104 hm2 land was cultivated mainly from swamp, woodland and grassland, and the returning farmland area was only 2.84×104hm2. At the same period, 58.67×104 hm2 drought land changed to irrigated land and 9.06×104 hm2 irrigated land changed to drought land. Irrigated land showed a pattern of concentrated distribution and the proportion of irrigated land accounted for 30.10% of the total area of farmland. More farmland increased in the east and north countries and less farmland increased in the west and south countries in the study area. Allocation optimization of water and land resources should be paid more attention in the process of agricultural development especially water conservancy construction in the future. Increasing the effective cultivated land area should be through land remediation frirstly. |
| Keywords: | land use agriculture optimization the north of Sanjiang Plain cultivated land reclamation rate |
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