西北师范大学学报（自然科学版）2013，Vol.49Issue(2)：102-106,5.
汉江流域植被覆盖时空变化及其对气候因子的响应研究
Research on spatial and temporal changes of vegetation cover and response to climate factors in Hanjiang Basin
摘要
Abstract
Based on the SPOT VGT_INDV ten-day date during 1999-2010, this paper analyzed the intra-annual and inter-annual variation and different spatial distribution of types of vegetation coverage in Hanjiang Basin, and then analyzed correlation and retardation time between vegetation and temperature and precipitation combined the data from 38 meteorological stations in this district and surrounding area. The results showed: There are twice high values and twice low values of vegetation coverage in crops in Hanjiang Basin, and only once high value and once low value in forest land. Compared analysis discovers averaging method could not reflect objective reality exactly in the district rich in types of vegetation. INDV fluctuates but increases as a whole during study period, and has a significant difference in districts which mainly displayed vegetation coverage had a significantly improving in the river banks and surrounding area in Hanjiang Basin. The coefficient of partial correlation between vegetation cover and temperature was different obviously from it between vegetation cover and precipitation, and the dependency of vegetation cover to the temperature was bigger than that of the precipitation. Human activities reduced the restriction of the temperature and precipitation to vegetation growth.关键词
植被覆盖/偏相关分析/汉江流域Key words
vegetation cover/ partial correlation analysis/ Hanjiang Basin分类
资源环境引用本文复制引用
李小燕..汉江流域植被覆盖时空变化及其对气候因子的响应研究[J].西北师范大学学报（自然科学版）,2013,49(2):102-106,5.基金项目
国家社会科学基金资助项目(11BJY031) （11BJY031）
陕西省自然科学基础研究计划项目(2012JM5011) （2012JM5011）
陕西(高校)哲学社会科学重点研究基地汉水文化研究中心计划项目(SLGH1245) （高校）
陕西省重点实验室项目(2010JS072) （2010JS072）
