[1]DING Wenrong.Temporal and Spatial Evolution Characteristics of Vegetation NDVI and Its Driving Factors in Karst Area of Southeast Yunnan, China[J].Research of Soil and Water Conservation,2016,23(06):227-231,237.
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Temporal and Spatial Evolution Characteristics of Vegetation NDVI and Its Driving Factors in Karst Area of Southeast Yunnan, China
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 06
Page number:
227-231,237
Column:
Public date:
2016-12-28
- Title:
- Temporal and Spatial Evolution Characteristics of Vegetation NDVI and Its Driving Factors in Karst Area of Southeast Yunnan, China
- Keywords:
- vegetation NDVI; temporal and spatial variation; climatic factors; returning land for farming to forestry; Karst area of southeast Yunnan
- CLC:
- TP79
- DOI:
- -
- Abstract:
- Based on the MODIS NDVI(Normal Difference Vegetation Index, NDVI) data sets, climate data from standard meteorological stations and socio-economic statistical data, overlay analysis, spatial statistical analysis methods and correlation analysis were employed to study the characteristics of temporal and spatial variation of vegetation NDVI, and the relationship between NDVI, climatic factors and human activity in Karst area of southeast Yunnan. The results show that growing season in Karst area of southeast Yunnan starts from early May and ends around mid-term September, vegetation NDVI presented a rising trend from 2001 to 2010, the rate was 0.03/10 a, the vegetation coverage area demonstrated an increasing trend. With respect to the change in vegetation coverage in Karst area of southeast Yunnan, the areas of increase and decrease of vegetation coverage were 70.03%, 29.97% of the total area of Karst area of southeast Yunnan, respectively. The most prominent areas of vegetation NDVI decrease are mainly around the cities and towns which have a large population, and the increased areas mainly concentrated in the high-altitude areas. The average relative humidity, minimum relative humidity and precipitation are the main factors affecting annual change of the vegetation NDVI, their impaction has about two months lag phase, the temperature factor has about for three months lag phase, and the other types of climatic factors have about two months period of lag phase. The implementation of returning land for farming to forestry plays a key role in the enhancement of the vegetation coverage in Karst area of southeast Yunnan, while the process of urbanization leads to vegetation degradation.
- References:
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[1] 穆少杰,李建龙,陈奕兆,等.2001-2010年内蒙古植被覆盖度时空变化特征[J].地理学报,2012,67(9):1255-1268.
[2] 赵舒怡,宫兆宁,刘旭颖.2001-2013年华北地区植被覆盖度与干旱条件的相关分析[J].地理学报,2015,70(5):717-729.
[3] Nemani R, Keeling C D, Hashimoto H. Climate-driven increases in global terrestrial net primary production from 1982 to 1999[J]. Science, 2003,300(5625):1560-1563.
[4] Melillo J M, McGuire A D, Kicklighter D W, et al. Global climate change and terrestrial net primary production[J]. Nature, 1993,363(6426):234-40.
[5] Myneni R B, Keeling C D, Tucker C J, et al. Increased plant growth in the northern high latitudes from 1981 to 1991. Nature, 1997,386(6626):698-702.
[6] 崔林丽,史军,杨引明,等.中国东部植被NDVI对气温和降水的旬响应特征[J].地理学报,2009,64(7):850-860.
[7] 侯光雷,张洪岩,郭聃,等.长白山区植被生长季NDVI时空变化及其对气候因子敏感性[J].地理科学进展,2012,31(3):285-292.
[8] Holben B N. Characteristics of maximum-value composite images from temporal AVHRR data[J]. International Journal of Remote Sensing, 1986,7(11):1417-1434.
[9] 朱求安,张万昌,赵登忠.基于PRISM和泰森多边形的地形要素日降水量空间插值研究[J].地理科学,2005,25(2):233-238.
[10] 甘春英,王兮之,李保生,等.连江流域近18年来植被覆盖度变化分析[J].地理科学,2011,31(8):1019-1024.
[11] 杨胜天,周旭,刘晓燕,等.黄河中游多沙粗沙区(渭河段)土地利用对植被盖度的影响[J].地理学报,2014,69(1):31-41.
[12] 刘宪锋,任志远,林志慧,等.2000-2011年三江源区植被覆盖时空变化特征[J].地理学报,2013,68(7):897-908.
[13] 李双双,延军平,万佳.近10年陕甘宁黄土高原区植被覆盖时空变化特征[J].地理学报,2012,67(7):960-970.
[14] 刘宪锋,潘耀忠,朱秀芳,等.2000-2014年秦巴山区植被覆盖时空变化特征及其归因[J].地理学报,2015,70(5):705-716.
[15] 张博胜,姜锦云,杨子生.中国退耕还林工程驱动下的滇东南喀斯特山区近8年土地利用变化研究:以文山县为例[J].中国农学通报,2010,26(22):338-343.
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