نتایج جستجو برای: mean annual precipitation

تعداد نتایج: 731909  

2007
Egbert Schwartz Karen L. Adair Edward A. Schuur

We analyzed soil bacterial communities with terminal restriction fragment length polymorphisms (TRFLP) along a precipitation gradient on the Hawaiian island Maui where mean annual rainfall increases from 2200 to 5050mm. Principal component and cluster analysis of TRFLP patterns indicated there were only small differences in bacterial communities in soils receiving 2200–2750mm of rain annually b...

2012
S. Brönnimann

This discussion paper is/has been under review for the journal Climate of the Past (CP). Please refer to the corresponding final paper in CP if available. Abstract Accumulation and δ 18 O data from Alpine ice cores provide information on past temperature and precipitation. However, their correlation with seasonal or annual mean temperature and precipitation at nearby sites is often low. Based o...

2017
Qingyin Zhang Ming’an Shao Xiaoxu Jia Xiaorong Wei

Tree mortality due to warming and drought is a critical aspect of forest ecosystem in responding to climate change. Spatial patterns of tree mortality induced by drought and its influencing factors, however, have yet to be documented at the global scale. We collected observations from 248 sites globally where trees have died due to drought and then assessed the effects of climatic and forest fa...

2013
Bradley John Evans Tom Lyons

Extreme and persistent reductions in annual precipitation and an increase in the mean diurnal temperature range have resulted in patch scale forest mortality following the summer of 2010–2011 within the Forest study area near Perth, Western Australia. The impacts of 20 bioclimatic indicators derived from temperature, precipitation and of actual and potential evapotranspiration are quantified. W...

2017
KE ZHAO XIN JING NATHAN J. SANDERS LITONG CHEN YU SHI DAN F. B. FLYNN YONGHUI WANG HAIYAN CHU WENJU LIANG JIN-SHENG HE

After decades of research, we are starting to understand more about why the number of species varies from place to place on the planet. However, little is known about spatial variation in abundance, especially for soil-dwelling organisms. In this study, we aimed to disentangle the relative influences of climatic factors, soil properties, and plant diversity on the abundance of soil-dwelling inv...

2017
Guoning Wan Meixue Yang Zhaochen Liu Xuejia Wang Xiaowen Liang Ricardo Machado Trigo

The variation of precipitation plays an important role in the eco-hydrological processes and water resources regimes on the Tibetan Plateau (TP). Based on the monthly mean precipitation data of 65 meteorological stations over the TP and surrounding areas from 1961 to 2015, variations, trends and temporal–spatial distribution of precipitation have been studied; furthermore, the possible reasons ...

2014
Dan Li

The impact of interannual variability of precipitation and potential evaporation on the long-term mean annual evapotranspiration as well as on the interannual variability of evapotranspiration is studied using a stochastic soil moisture model within the Budyko framework. Results indicate that given the same long-term mean annual precipitation and potential evaporation, including interannual var...

2008
A. Loukas

This paper evaluates climate change effects on drought severity in the region of Thessaly, Greece. The Standardized Precipitation Index (SPI) has been used for estimation of drought severity. A geographical information system is applied for the division of Thessaly region to twelve hydrological homogeneous areas based on their geomorphology. Mean monthly precipitation values from 50 precipitati...

2002
P. C. D. Milly K. A. Dunne

[1] Controls on interannual variations in water and energy balances of large river basins (10,000 km and greater) are evaluated in the framework of the semiempirical relation E=P 1⁄4 1⁄21þ ðR=PÞ n 1/n in which and E, P, and R are basin mean values of annual evaporation, precipitation, and surface net radiation, respectively, expressed as equivalent evaporative water flux, overbars denote long-t...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید