搜索结果: 1-11 共查到“农业基础学科 vegetation”相关记录11条 . 查询时间(0.312 秒)
THE IMPACTS OF TYPICAL DROUGHT EVENTS ON TERRESTRIAL VEGETATION IN CHINA
vegetation type drought event SPEI the North China the Southwest China
2018/5/16
In our study, according to the statistical results of standardized precipitation evapotranspiration index (SPEI), we chose two drought events which occurred in the North China during 2001 and in the S...
APPLICATION OF HYPERION DATA TO AGRICULTURAL LAND CLASSIFICATION AND VEGETATION PROPERTIES ESTIMATION IN SWITZERLAND
Agriculture Land Cover Classification Remote Sensing Hyper Spectral Object Vegetation Contextual
2015/7/29
On August 18, 2002, the Hyperion hyperspectral imager onboard the EO-1 platform recorded data over an intensively used
agricultural area in north western Switzerland, the Limpach Valley. The sensor’s...
PROPOSING AN EFFICIENT INDICATOR OF GRAZER DISTRIBUTION ON HETEROGENEOUS HILL VEGETATION
agriculture ecology environment resource management resource selection
2010/3/26
Irish and UK uplands and peatlands are of international importance but are under threat from
several factors, including heavy grazing pressure. Sheep preferentially graze patches of acid grassland wi...
基于SPOT/VEGETATION数据的陕甘宁退耕还林区植被分类
SPOT/VEGETATION 多时相 阈值 分类
2009/10/10
以评估退耕还林/还草的气候、生态效应为目的，利用多时相SPOT/VEGETATION数据，将监督分类与非监督分类相结合，选定合适的阈值对西北地区植被及作物进行分类，分类结果与统计面积、实际调查结果相比，精度在85%以上。
Atmospheric Methane Concentration Pattern Over India in Relation to Vegetation Dynamics- An Analysis Using Envisat-Sciamachy and Spot-Vegetation NDVI Data
Remote Sensing Methane Vegetation NDVI Correlation Kharif etc
2016/4/8
This paper highlights the spatial and temporal variability of atmospheric columnar methane (CH4) concentration in the Kharif season over India and its correlation with the terrestrial vegetation dynam...
A Research on the Cytological Characters of Yellow Bluestem（Bothriochloa ischaemum（L）Keng）Occured in Natural Maqui Type Vegetation of Çukurova Region
Cytological Characters Yellow Bluestem Natural Maqui Type Vegetation Ç ukurova Region
2009/1/15
This study was conducted to determine the number and morphological features of somatic chromosomes of yellow bluestem (Bothriochloa ischaemum (L) Keng) dominated in natural maqui type range vegetation...
Determination of Wetland Vegetation Height with LIDAR
LIDAR Wetland Vegetation Heights Vegetation Classification Remote Sensing
2009/1/13
Light Detection and Ranging (LIDAR) is a new technology that offers a potential alternative to field surveying and photogrammetric techniques for the collection of elevation data. It has the advantag...
Pilot Study for an Assessment of Vegetation Structure for Steppe Rangelands of Central Anatolia
Semiarid steppe-rangelands vegetation-pattern Central Anatolia Redundancy Analysis
2009/1/7
In the last 50 years, rangelands in the Central Anatolian Region of Turkey have been converted to cropping lands, which has negatively accelerated vegetation change, resulting in overgrazing and poor ...
Effect of oxygen deficiency on the macroelement content of the soil(pot experiment with barley cv. Aramir vegetation)
oxygen deficiency macroelements soil
2008/11/20
A greenhouse experiment to test the relationship between the oxygen status of soil and the macroelement content was conducted. N-NH4+, N-NO3-, P and K content in the soil under oxygen stress conditio...
Effect of oxygen deficiency on soil dehydrogenase activity in a pot experiment with triticale cv. Jago vegetation
soil aeration status dehydrogenase activity triticale redox potential oxygen diffusion rate
2008/11/19
Dehydrogenase activity of an Orthic Luvisol developed from loess (Ap horizon) was observed in a greenhouse pot experiment with triticale cv. Jago vegetation under different aeration conditions. Soil ...
VEGETATION ECOLOGY OF THE SIMILIPAL BIOSPHERE RESERVE, ORISSA, INDIA
Disturbance index diversity regeneration community succession India
2010/3/25
Vegetation analysis of the forest ecosystem of Similipal Biosphere Reserve (SBR) was carried
out at 10 sites to study changes in structure and composition in plant community distributed in the core (...