Spatio-temporal Analyses of Vegetation Degradation Patterns in Zoige from 2001 to 2013

doi:10.11733/j.issn.1007-0435.2015.02.004

Acta Agrestia Sinica ›› 2015, Vol. 23 ›› Issue (2): 239-245.DOI: 10.11733/j.issn.1007-0435.2015.02.004

Previous Articles Next Articles

Spatio-temporal Analyses of Vegetation Degradation Patterns in Zoige from 2001 to 2013

FENG Wen-lan, ZHONG Hao-zhe, WANG Yong-qian, GONG Xue-mei

College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan Province 610225, China

Received:2014-04-10 Revised:2014-07-01 Online:2015-04-15 Published:2015-03-25

2001—2013年若尔盖地区植被退化的时空格局分析

冯文兰, 钟昊哲, 王永前, 龚雪梅

成都信息工程学院资源环境学院, 四川成都 610225

作者简介:冯文兰(1979-),女,四川成都人,博士,副教授,研究方向为资源环境遥感,E-mail:fwl@cuit.edu.cn
基金资助:
国家自然科学基金项目(41301653)资助

Abstract

Abstract:

To understand the process of ecological change in Zoige, the vegetation degradation information was obtained based on vegetation coverage using MODIS-NDVI data from 2001 to 2013. The dynamics of vegetation degradation patterns were disclosed by landscape metrics screened by principle component analysis (PCA). The results showed that vegetation degradation in Zoige could be typically divided into two phases when taking 2008 as a point. The first was characterized by expanding year after year, while the second by the degradation partially controlled in some area but entirely aggravated. The indices of PD, AI and FRAC_AM revealed the different fragmentation processes of vegetation degradation pattern. The tender vegetation degradation patches increased gradually in the first stage, while heavy degradation patches invaded and was joined in the second stage. Although some results had been obtained by regional ecological environment management, the trend of the ecological deterioration had not fundamentally been restrained. Vegetation degradation occurred mainly in the north.

Key words: Vegetation degradation, Landscape index, MODIS-NDVI, Zoige Plateau Marsh Wetland

摘要：

为了解若尔盖地区生态变化的过程,利用2001—2013年的MODIS-NDVI数据,以植被覆盖度为指标监测若尔盖地区植被退化过程,采用主成分分析方法筛选景观指数分析了植被退化格局的时空特征.结果表明:近年来研究区植被退化以2008年为节点分为2个阶段,第1阶段退化范围逐年扩大,第2阶段局部地区退化得到控制但整体退化加重;PD, AI和FRAC_AM指数揭示了研究区植被退化格局破碎度增大的过程,第1阶段较低退化程度的斑块密度不断增大,第2阶段较重退化程度的斑块持续侵入并相连成片.虽然该区生态环境治理已取得一定的效果,但生态恶化的趋势并未得到根本遏制,且植被退化主要发生在北部地区.

关键词: 植被退化, 格局指数, MODIS-NDVI, 若尔盖湿地

CLC Number:

P426.616

FENG Wen-lan, ZHONG Hao-zhe, WANG Yong-qian, GONG Xue-mei. Spatio-temporal Analyses of Vegetation Degradation Patterns in Zoige from 2001 to 2013[J]. Acta Agrestia Sinica, 2015, 23(2): 239-245.

冯文兰, 钟昊哲, 王永前, 龚雪梅. 2001—2013年若尔盖地区植被退化的时空格局分析[J]. 草地学报, 2015, 23(2): 239-245.

0
/ / Recommend

Add to citation manager EndNote|Ris|BibTeX

URL: https://manu40.magtech.com.cn/Jweb_cdxb/EN/10.11733/j.issn.1007-0435.2015.02.004

https://manu40.magtech.com.cn/Jweb_cdxb/EN/Y2015/V23/I2/239

References

[1] Bonan G B. Forests and climate change: Forcings, feedbacks, and the climate benefits of forests [J]. Science,2008,320(5882):1444-1449
[2] 徐振锋,胡庭兴,张远彬,等. 川西亚高山林线交错带糙皮桦和岷江冷杉幼苗物候与生长对模拟增温的响应[J]. 植物生态学报,2008,32(5):1061-1071
[3] Metternicht G, Zinck J A, Blanco P D, et al. Remote sensing of land degradation: Experiences from Latin America and the Caribbean [J]. Journal of environmental quality,2010,39(1):42-61
[4] 张晓云,吕宪国,沈松平. 若尔盖高原湿地生态系统服务价值动态[J]. 应用生态学报,2009,20(5):1147-1152
[5] 熊远清,吴鹏飞,张洪芝,等. 若尔盖湿地退化过程中土壤水源涵养功能[J]. 生态学报,2011,31(19):5780-5788
[6] 白军红,欧阳华,崔保山,等. 近40年来若尔盖高原高寒湿地景观格局变化[J]. 生态学报,2008,8(5):2245-2252
[7] 李斌,董锁成,江晓波,等. 若尔盖湿地草原沙化驱动因素分析[J]. 水土保持研究,2008,15(3):112-115
[8] Nagalakshmi U, Wang Z, Waern K, et al. The transcriptional landscape of the yeast genome defined by RNA sequencing [J]. Science,2008,320(5881):1344-1349
[9] Taft O W, Haig S M. Importance of wetland landscape structure to shorebirds wintering in an agricultural valley [J]. Landscape Ecology,2006,21(2):169-184
[10] 刘前进,于兴修,王瑶,等. 沂蒙山区土壤侵蚀强度的垂直动态变化研究[J]. 水土保持通报,2010,30(5):33-38
[11] 武国胜,林惠花,朱鹤健,等. 典型红壤侵蚀景观的时空变化:以福建长汀为例[J]. 应用生态学报,2011,22(7):1825-1832
[12] Hayes J P. Modernisation with Local Characteristics: Development Efforts and the Environment on the Zoige Grass and Wetlands, 1949-2005 [J]. Environment and History,2010,16(3):323-347
[13] 李晋昌,王文丽,胡光印,等. 若尔盖高原土地利用变化对生态系统服务价值的影响[J]. 生态学报,2011,31(12):3451-3459
[14] 戴睿,刘志红,娄梦筠,等. 藏北那曲地区草地退化时空特征分析[J]. 草地学报,2013,21(1):38-44
[15] 高清竹,李玉娥,林而达,等. 藏北地区草地退化的时空分布特征[J]. 地理学报,2006,60(6):965-973
[16] 刘广峰,吴波,范文义,等. 基于像元二分模型的沙漠化地区植被覆盖度提取:以毛乌素沙地为[J]. 水土保持研究,2007,14(2):268-271
[17] 王瑶,刘前进,于兴修. 沂蒙山区土壤侵蚀垂直景观格局的分形特征[J]. 农业工程学报,2010,26(11):304-309
[18] 盛海洋,王玉珏. 若尔盖高原沙漠化成因及其治理对策[J]. 水土保持通报,2007,27(1):126-131
[19] 张顺谦,郭海燕,卿清涛,等. 利用 MODIS 数据识别若尔盖草地的沙化:分层分类方法[J]. 自然灾害学报,2009,18(1):133-138
[20] 郭洁,李国平. 若尔盖气候变化及其对湿地退化的影响[J]. 高原气象,2007,26(2):422-428
[21] 邓茂林,田昆,杨永兴,等. 高原湿地若尔盖国家级自然保护区景观变化及其驱动力[J]. 生态与农村环境学报,2010,26(1):58-62
[22] 李晋昌,王文丽,胡光印,等. 若尔盖高原土地利用变化对生态系统服务价值的影响[J]. 生态学报,2011,31(12):3451-2459
[23] 盛海洋. 若尔盖生态脆弱地区草地沙化遥感监测研究[J]. 人民长江,2007,38(4):120-122
[24] 刘长秀,张伟. 若尔盖高寒湿地发展生态旅游的必要性研究[J]. 安徽农业科学,2013,40(34):16718-16721
[25] 刘娜,唐勇,方艳. 若尔盖湿地旅游开发的环境影响及对策[J]. 水资源保护,2007,23(5):82-86
[26] 陈志科,吕宪国. 两个时期若尔盖高原沼泽湿地景观格局的对比研究[J]. 湿地科学,2010,8(1):8-14
[27] 李珂,杨永兴,杨杨,等. 基于植被数量分类的排水疏干影响下若尔盖高原沼泽退化特征[J]. 应用生态学报,2012,23(7):1781-1789
[28] 王文丽,董治宝,胡光印,等. 若尔盖高原近 30 年沙地变化趋势分析[J]. 中国沙漠,2008,28(4):617-621
[29] 崔丽娟,马琼芳,郝云庆,等. 若尔盖高寒沼泽植物群落与环境因子的关系[J]. 生态环境学报,2013,22(11):1749-1756

Spatio-temporal Analyses of Vegetation Degradation Patterns in Zoige from 2001 to 2013

2001—2013年若尔盖地区植被退化的时空格局分析

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 3

Recommended Articles

Metrics

Comments

[1]	MA Wei-wei, LI Guang, SONG Jie, YAN Li-juan, WU Li-yu. Effect of Vegetation Degradation on Soil Organic Carbon Pool and Carbon Pool Management Index in the Gahai Wetland,China [J]. Acta Agrestia Sinica, 2019, 27(3): 687-694.
[2]	SU Wen-ying, MA Wei-wei, LI Guang, WU Jiang-qi, XU Yan-zhao. Dynamic Characteristics of Soil Sucrase and Amylase Activities during Vegetation Degradation in Gahai Wetland [J]. Acta Agrestia Sinica, 2019, 27(1): 88-96.
[3]	NIE Zhi-gang, WU Jiang-qi, MA Wei-wei, LI Guang, YAN Li-juan. Stoichiometric Characteristics and Dynamics of Plant Carbon, Nitrogen and Phosphorus in Differently Degraded Gannan Hai Wetland [J]. Acta Agrestia Sinica, 2018, 26(2): 386-392.