نتایج جستجو برای: vegetation types

تعداد نتایج: 531142  

2017
Zhiwei Wang Qian Wang Xiaodong Wu Lin Zhao Guangyang Yue Zhuotong Nan Puchang Wang Shuhua Yi Defu Zou Yu Qin Tonghua Wu Jianzong Shi

The Qinghai-Tibetan Plateau (QTP) contains the largest permafrost area in a high-altitude region in the world, and the unique hydrothermal environments of the active layers in this region have an important impact on vegetation growth. Geographical locations present different climatic conditions, and in combination with the permafrost environments, these conditions comprehensively affect the loc...

Journal: :Remote Sensing 2015
Xianfeng Liu Xiufang Zhu Shuangshuang Li Yanxu Liu Yaozhong Pan

In recent decades, the monitoring of vegetation dynamics has become crucial because of its important role in terrestrial ecosystems. In this study, a satellite-derived normalized difference vegetation index (NDVI) was combined with climate factors to explore the spatiotemporal patterns of vegetation change during the growing season, as well as their driving forces in China from 2001 to 2012. Ou...

2014
Guangxuan Han Qinghui Xing Yiqi Luo Rashad Rafique Junbao Yu Nate Mikle

Vegetation type plays an important role in regulating the temporal and spatial variation of soil respiration. Therefore, vegetation patchiness may cause high uncertainties in the estimates of soil respiration for scaling field measurements to ecosystem level. Few studies provide insights regarding the influence of vegetation types on soil respiration and its temperature sensitivity in an estuar...

Amr Ali Shahmoradi Ehsan Zandi Esfahan Seyyed Morteza Abtahi,

Abstract. The purpose of this study was to investigate vegetation dynamics and range conditions considering the climatic conditions and soil properties in Haftooman, Khoor and Biabanak deserts, Iran. For this purpose, after determining vegetation types and the associated species, the type of rangeland utilization, grazing season, the livestock type, the other relevant information, vegetation da...

2011
N. Glenn J. Mitchell L. Spaete T. Sankey R. Shrestha

Low-height vegetation, common in semiarid regions, is difficult to characterize with airborne LiDAR (light detection and ranging) due to the similarities, in time and space, of the point returns of vegetation and ground. Other complications may occur due to the lowheight vegetation structural characteristics and the effects of terrain slope. This research is focused on modeling methods and erro...

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