[1]WANG Jialu,LI Weijie,WANG Yong,et al.Spatial-Temporal Variation of NDVI and Its Responses to Hydrothermal Condition in Rocky Desertification Area of Chongqing City from 2005 to 2014[J].Research of Soil and Water Conservation,2021,28(02):217-223.
Copy
Spatial-Temporal Variation of NDVI and Its Responses to Hydrothermal Condition in Rocky Desertification Area of Chongqing City from 2005 to 2014
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 02
Page number:
217-223
Column:
Public date:
2021-02-06
- Title:
- Spatial-Temporal Variation of NDVI and Its Responses to Hydrothermal Condition in Rocky Desertification Area of Chongqing City from 2005 to 2014
- Keywords:
- spatial temporal variation of NDVI; climate data; in rocky desertification area; Chongqing City
- CLC:
- P951
- DOI:
- -
- Abstract:
- In order to understand the restoration of vegetation and the treatment of ecological environment in rocky desertification areas of Chongqing City, NDVI and meteorological data from 2005 to 2014 in rocky desertification areas of Chongqing City were selected, and trend analysis, variation coefficient analysis, partial correlation analysis and other methods to focus on the spatial-temporal variation of NDVI in the rocky desertification areas of Chongqing City over the past 10 years were used, and the correlations between the NDVI and climatic factors were analyzed. The results show that:(1)the interannual variation of NDVI shows an overall increasing trend in rocky desertification areas of Chongqing City, with an increasing rate of 0.08/10 a. Among them, the growth rate in northeast Chongqing City is relatively high, up to 0.09/10 a, and the seasonal variation of NDVI has some differences, and the spring growth is the most significant, mainly distributed in the northeast, central and western regions of Chongqing City;(2)the area with increasing NDVI in the northeastern Chongqing has a large area, which plays a crucial role in improving the ecological environment and soil and water conservation in the Three Gorges reservoir area; the NDVI in the rocky desertification regions of southeastern and midwest Chongqing City remained as a whole, but the areas with decreasing NDVI were mainly distributed in the Wujiang River Basin;(3)the coefficient of variation of NDVI in rock desertification of Chongqing City from 2005 to 2014 was relatively low, and the degree of variation was mainly stable;(4)the positive correlation between precipitation and NDVI in rocky desertification areas of Chongqing City is larger than that of negative correlation, the same to the positive correlation between temperature and NDVI. In general, high-humidity environment promoted the growth of vegetation in the Three Gorges reservoir area to a certain extent, while the low-temperature environment has inhibited the growth of vegetation in the Wujiang River Basin.
- References:
-
[1] 马士彬,安裕伦,杨广斌,等.喀斯特不同植被类型NDVI变化及驱动因素分析:以贵州为例[J].生态环境学报,2016,25(7):1106-1114.
[2] 熊康宁,李晋,龙明忠.典型喀斯特石漠化治理区水土流失特征与关键问题[J].地理学报,2012,67(7):878-888.
[3] Wu X Q, Liu H M, Huang X L, et al. Human driving forces: Analysis of rocky desertification in karst region in Guanling County, Guizhou Province[J].Chinese Geographical Science, 2011, 21(5): 600-608.
[4] 李学梅,任志远.近十年来重庆市NDVI变化及对气温降水的旬响应特征分析[J].长江流域资源与环境,2014,23(1):101-108.
[5] 罗敏,古丽·加帕尔,郭浩,等.2000—2013年塔里木河流域生长季NDVI时空变化特征及其影响因素分析[J].自然资源学报,2017,32(1):50-63.
[6] 朴世龙,方精云.最近18年来中国植被覆盖的动态变化[J].第四纪研究,2001,21(4):294-302.
[7] 汪言在,苟诗薇.重庆市降雨侵蚀力空间格局及其变化[J].地理科学,2013,33(1):116-122.
[8] 周梦甜,李军,朱康文.近15 a新疆不同类型植被NDVI时空动态变化及对气候变化的响应[J].干旱区地理,2015,38(4):779-787.
[9] 孟丹,李小娟,宫辉力,等.京津冀地区NDVI变化及气候因子驱动分析[J].地球信息科学学报,2015,17(8):1001-1007.
[10] 李辉霞,刘国华,傅伯杰.基于NDVI的三江源地区植被生长对气候变化和人类活动的响应研究[J].生态学报,2011,31(19):5495-5504.
[11] 张艳楠,牛建明,张庆,等.植被指数在典型草原生物量遥感估测应用中的问题探讨[J].草业学报,2012,21(1):229-238.
[12] 宫攀,陈仲新.基于MODIS数据的东北地区植被物候参数提取[J].土壤通报,2009,40(2):213-217.
[13] 张戈丽,徐兴良,周才平,等.近30年来呼伦贝尔地区草地植被变化对气候变化的响应[J].地理学报,2011,66(1):47-58.
[14] 张宝庆,吴普特,赵西宁.近30 a黄土高原植被覆盖时空演变监测与分析[J].农业工程学报,2011,27(4):287-293,400.
[15] 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.
- Similar References:
Memo
-
Last Update:
2021-02-10