[1]陈芳,魏怀东,周兰萍,等. 景电灌区植被覆盖遥感动态监测[J].西北林学院学报,2018,33(3):226-231.[doi:10.3969/j.issn.1001-7461.2018.03.35]
 CHEN Fang,WEI Huai-dong,ZHOU Lan-ping,et al. Dynamically Monitoring Vegetation by Remote Sensing in Jingtai Irrigation area[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2018,33(3):226-231.[doi:10.3969/j.issn.1001-7461.2018.03.35]
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 景电灌区植被覆盖遥感动态监测()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第33卷
期数:
2018年第3期
页码:
226-231
栏目:
出版日期:
2018-05-31

文章信息/Info

Title:
 Dynamically Monitoring Vegetation by Remote Sensing in Jingtai Irrigation area
文章编号:
1001-7461(2018)03-0226-06
作者:
 陈芳魏怀东周兰萍李亚
 (甘肃省荒漠化与风沙灾害防治重点实验室/省部共建国家重点实验室培育基地,甘肃省治沙研究所,甘肃 兰州 730070)
Author(s):
 CHEN FangWEI Huai-dongZHOU Lan-pingLI Ya
 (Gansu Desert Control Research Institute/ Gansu Desert Control Research Institute State Key Laboratory Breeding Base of Desertification and Aralian Sand Disaster Combating,Lanzhou,Gansu 730070,China)
关键词:
 归一化植被指数像元二分模型植被覆盖度景电灌区
Keywords:
 normalized vegetation index binary pixel model vegetation coverage Jingtai electrical irrigation area
分类号:
S771.8
DOI:
10.3969/j.issn.1001-7461.2018.03.35
文献标志码:
A
摘要:
 植被盖度是评估区域生态环境的一个重要参数,基于1987、2001年和2008年3期TM遥感数据影像,利用像元二分模型进行了景电灌区植被覆盖度的估算,并通过转移矩阵,对引水灌溉工程措施下形成的绿洲灌溉农业区植被覆盖动态变化进行了定量监测。结果表明:1)受气候条件限制,景电灌区极低覆盖度和低覆盖度所占面积比例在60%以上,植被覆盖度极低。2)1987-2015年,由于景电工程和国家生态建设工程影响,景电灌区植被覆盖度出现了较大波动。极低覆盖度面积迅速减少,其所占面积比例由1987年的62.20%降至2015年的30.86%,年均减少1.19%。灌溉农田所占面积比例由1987年的16.93%增加至2015年的35.91%,年均变化率达0.68%。
Abstract:
 Vegetation coverage is an important ecological and environmental parameter for the evaluation of ecological environment.By interpreting the TM images in 1987,2001 and 2015,the vibrations of vegetation coverage in Jingtai irrigation area was studied based on binary pixel model of remote sensing.The results showed that 1) due to the climatic conditions,the ratio of extremely low and low coverage in the area was more than 60%,indicating that the vegetation coverage was very low.2)From 1987 to 2015,due to the implentmentation of Jingtai Electric Power Irrigation Project and national ecological construction project,the ratio of low vegetation cover decreased rapidly,from 62.20% in 1987 to 30.86% in 2015,with an annual decrease of 1.19%.The proportion of irrigated farmland increased from 16.93% in 1987 to 35.91% in 2015,with an average annual rate of change of 0.68%.

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备注/Memo

备注/Memo:
 收稿日期:2017-04-01修回日期:2017-12-06
基金项目:国家自然科学基金(31360204,51579102);甘肃省自然基金计划(17JR5RA062)。
作者简介:陈芳,女,副研究员,研究方向:荒漠化监测与防治。E-mail:chenfang2ff3@163.com
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