نتایج جستجو برای: parameters soil storage

تعداد نتایج: 915704  

ژورنال: آبخیزداری ایران 2019

Rainfall harvesting and storage in soil depth through micro catchment contribute to curtail water deficiency of plants. The objective of this research that was conducted in Kaboodeh-Olya village in Kermanshah province, Iran, was to compare the effects of three different micro catchment systems on soil moisture storage including flat, crescent and rhombus shaped. The experimental research was pe...

Journal: :journal of rangeland science 2012
maedeh yousefian khadijeh mahdavi mohammad mahdavi reza tamartash

livestock grazing is one of the most important kinds of land usage that has a high potential to decrease or increase carbon storage in rangeland ecosystem. this research was investigated the effects of enclosure on soil carbon storage in a rangeland with dominant plants of artemisia aucheri. hence, two rangelands of enclosure (shahtappeh-chah mahmood) and no enclosure (chiro) were chosen in sem...

2014
Xitian Cai Zong-Liang Yang Cédric H. David Guo-Yue Niu Matthew Rodell

[1] This study evaluates regional-scale hydrological simulations of the newly developed community Noah land surface model (LSM) with multiparameterization options (Noah-MP). The model is configured for the Mississippi River Basin and driven by the North American Land Data Assimilation System Phase 2 atmospheric forcing at 1/8° resolution. The simulations are compared with various observational ...

Journal: :Int. J. Applied Earth Observation and Geoinformation 2014
Naveen J. P. Anne Amr H. Abd-Elrahman David B. Lewis Nicole A. Hewitt

Developing spectral models of soil properties is an important frontier in remote sensing and soil science. Several studies have focused on modeling soil properties such as total pools of soil organic matter and carbon in bare soils. We extended this effort to model soil parameters in areas densely covered with coastal vegetation. Moreover, we investigated soil properties indicative of soil func...

2000
Axel Thomas

Long-term trends of the combined effects of evapotranspiration and precipitation effect surface hydrology and soil water and consequently natural and agricultural ecosystems. This paper analyses yield index and soil water deficit time series derived from water balance calculations for multiple cropping systems with FAO methodology. The analysis shows that yield index values have increased and s...

2016
Shunlei Peng Ding Wen Nianpeng He Guirui Yu Anna Ma Qiufeng Wang

Carbon (C) storage for all the components, especially dead mass and soil organic carbon, was rarely reported and remained uncertainty in China's forest ecosystems. This study used field-measured data published between 2004 and 2014 to estimate C storage by three forest type classifications and three spatial interpolations and assessed the uncertainty in C storage resulting from different integr...

ژورنال: مرتع 2022

Background and objectives: One of the most important components of rangeland ecosystems is soil that their degradation will reduce rangeland production capacity. About half of the world's lands are rangelands and they contain more than one-third of the biosphere carbon pool. Therefore, these lands have a high potential for carbon sequestration. This study was conducted to investigate the soil c...

Journal: :journal of agricultural science and technology 2013
x. j. wang zh. k. jia l. y. liang sh. zh. kang

degraded soils in northwest china are mostly nonproductive due to imbalanced nutrient and inadequate water supply. the effects of manure application at three different rates (7.5, 15.0, and 22.5 t ha–1) combined with chemical fertilizers on soil water and water-use efficiency in maize [compared with chemical fertilizers (control)], under semi-arid conditions in dark loessial soil and over a per...

2010
Lucas E. Nave Eric D. Vance Christopher W. Swanston Peter S. Curtis

Forest soil carbon (C) storage is a significant component of the global C cycle, and is important for sustaining forest productivity. Although forest management may have substantial impacts on soil C storage, experimental data from forest harvesting studies have not been synthesized recently. To quantify the effects of harvesting on soil C, and to identify sources of variation in soil C respons...

Journal: :محیط زیست طبیعی 0
رضا تمرتاش دانشگاه علوم کشاورزی و منابع طبیعی ساری، ایران مائده یوسفیان دانشگاه آزاد اسلامی واحد نور، ایران سیده خدیجه مهدوی دانشگاه آزاد اسلامی واحد نور، ایران محمد مهدوی دانشگاه آزاد اسلامی واحد نور، ایران

nowadays green house gases such as carbon have the most effect on global climate changes that can be decreased by plant and soil carbon sequestration of rangelands. livestock grazing has high potential to decrease or increase carbon storage. so this research investigated the effects of enclosure on plant carbon storage in rangeland of enclosure (shah tappeh-chah mahmood) and no enclosure (chiro...

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