| 1999-2010年陕甘宁黄土高原区气候对植被物候的影响 |
| |
| 引用本文： | 韦振锋,任志远,张翀,李小燕,张嘉琪.1999-2010年陕甘宁黄土高原区气候对植被物候的影响[J].水土保持通报,2014(5):232-236. |
| |
| 作者姓名： | 韦振锋 任志远 张翀 李小燕 张嘉琪 |
| |
| 作者单位： | 陕西师范大学 旅游与环境学院, 陕西 西安 710062;广西财经学院, 广西 南宁 530003;陕西师范大学 旅游与环境学院, 陕西 西安 710062;陕西师范大学 旅游与环境学院, 陕西 西安 710062;陕西理工学院 历史文化与旅游学院, 陕西 汉中 723000;陕西师范大学 旅游与环境学院, 陕西 西安 710062 |
| |
| 基金项目： | 国家自然科学基金项目"我国生态脆弱区能源开发生态效应测评与调控研究"(41371523);陕西理工学院项目"汉江源景观格局演化与生态效应研究"(2013hzzx-15);教育部人文社会科学重点研究基地项目资助(14JJD840004) |
| |
| 摘 要： | 基于Spot Vegetation数据,采用植被物候分析、Hurst指数及偏相关系数等方法,分析了1999-2010年陕甘宁黄土高原区植被物候的时空变化特征、未来趋势及其驱动因素。结果表明:(1) 1999-2010年陕甘宁黄土高原区多年平均物候呈纬度地带性。随着纬度増高,生长季始期逐渐推迟,生长季长度缩短,生长季末期提前,反之,生长季始期呈提前,生长季长度延长,生长季末期推迟。(2)近12 a陕甘宁黄土高原区多年物候Hurst指数变化表现为同向持续性面积大于反持续性面积,呈较弱的持续性变化,分布规律大致都呈东西走向。(3)受降水影响,陕甘宁黄土高原区多年物候同时与纬度以及河流网有关。低纬度温度高,可促进植被对水分的吸收,因此在低纬度或者水资源丰富地区,植被返青提前,生长周期延长;相反,干旱低温的高纬度地区,植被生长停滞提前,生长周期缩短。
|
| 关 键 词： | 植被物候 时空特征 Hurst指数 陕甘宁黄土高原地区 |
| 收稿时间： | 2013/10/16 0:00:00 |
| 修稿时间： | 2013/12/27 0:00:00 |
Impact of Climate on Vegetation Phenology on Loess Plateau in Shaanxi-Gansu-Ningxia Region During 1999-2010 |
| |
| WEI Zhen-feng,REN Zhi-yuan,ZHANG Chong,LI Xiao-yan and ZHANG Jia-qi.Impact of Climate on Vegetation Phenology on Loess Plateau in Shaanxi-Gansu-Ningxia Region During 1999-2010[J].Bulletin of Soil and Water Conservation,2014(5):232-236. |
| |
| Authors: | WEI Zhen-feng REN Zhi-yuan ZHANG Chong LI Xiao-yan and ZHANG Jia-qi |
| |
| Institution: | College of Tourism and Environment, Shaanxi Normal University, Xi'an, Shaanxi 710062, China;Guangxi University of Finance and Economics, Nanning, Guangxi 530003, China;College of Tourism and Environment, Shaanxi Normal University, Xi'an, Shaanxi 710062, China;College of Tourism and Environment, Shaanxi Normal University, Xi'an, Shaanxi 710062, China;School of History Culture and Tourism, Shaanxi University of Technology, Hanzhong, Shaanxi 723000, China;College of Tourism and Environment, Shaanxi Normal University, Xi'an, Shaanxi 710062, China |
| |
| Abstract: | Based on Spot Vegetation data, using the methods of vegetation phenology analysis, Hurst index and partial correlation coefficient, the spatial and temporal variation characteristics of vegetation phenology, developing trends and driving factors on Loess Plateau in Shaanxi-Gansu-Ningxia region during 1999-2010 were analyzed. The results showed that:(1) The average phenology in the region from 1999 to 2000 showed the characteristics of the latitudinal zonality. At the higher latitude area, the start of growth(SOG) was delayed, the long of growth season(LOG)was shorten, and the end of growth season(EOG) was advanced. On the contrary, the SOG was advanced, and the LOG was extended, and EOG was delayed.(2) The Hurst index of the phenology in the region during 12 years was showed that the synthetic sustainability area was greater than the anti-continuity area, with the weaker sustainability changing, and the area was general distributed in east-west orientation.(3) The phenology in the region was affected by rainfall, and related to the latitude and river network. The temperature in the lower latitude was higher, it could promote the vegetation to absorb more moisture, thus, the vegetation turning-green was advanced and the growth cycle was extended in the area of lower latitude or rich in water resource; On the contrary, the temperature in drought and higher latitudes was lower, the stagnation of vegetation growth was advanced, and the growth cycle was shorten. |
| |
| Keywords: | vegetation phenology spatial and temporal characteristics Hurst index Loess Plateau in Shaanxi-Gansu-Ningxia Region |
|
| 点击此处可从《水土保持通报》浏览原始摘要信息 |
| 点击此处可从《水土保持通报》下载免费的PDF全文 |
|
