نتایج جستجو برای: parameters soil storage
تعداد نتایج: 915704 فیلتر نتایج به سال:
The USA has about 336 Mha of grazing lands of which rangelands account for 48%. Changes in rangeland soil C can occur in response to a wide range of management and environmental factors. Grazing, fire, and fertilization have been shown to affect soil C storage in rangelands, as has converting marginal croplands into grasslands. Carbon losses due to soil erosion can influence soil C storage on r...
Determination of overland sheet flow depths, velocities and celerities across the hillslope in watershed modeling is important towards estimation of surface storage, travel times to streams and soil detachment rates. It requires careful characterization of the flow processes. Similarly, determination of the temporal variation of hillslope-riparian-stream hydrologic connectivity requires estimat...
Using soil molecular biology to make a traceable fingerprint has been proposed as putative method for forensic science. One unknown of this method is how the soil microbial community responds to contrasting conditions for storage and handling. To examine this we compared field fresh sample to soil samples stored one of six ways (4 ̊C, -20 ̊C, -80 ̊C, air dried, freeze dried, and oven dried) for 5 ...
Residential abandonment is on the rise in many urban areas, with unknown implications for ecosystem structure and function on land slated for partial or full restoration to native habitat. Partial decoupling of human and natural systems could reduce disturbance (e.g., trampling, recreational traffic) and modify vegetation structure in a way that alters soil carbon storage, an ecosystem function...
Caragana microphylla, a native perennial leguminous shrub, is widely used for desertification control in China’s Horqin Sandy Land. We investigated the effects of afforestation using C. microphylla in areas with fixed and active dunes on soil carbon (C) and nitrogen (N) storage in the soil total and light-fraction (LF) organic matter. Compared to the values in the control areas, soil organic ca...
Effects of sample storage methods on the quantity and quality of labile soil organic carbon are not fully understood even though their effects on basic soil properties have been extensively studied. We studied the effects of air-drying and frozen storage on cold and hot water soluble organic carbon (WSOC). Cold- and hot-WSOC in air-dried and frozen-stored soils were linearly correlated with tho...
0022-1694/$ see front matter 2010 Elsevier B.V. A doi:10.1016/j.jhydrol.2010.09.017 ⇑ Corresponding author. Present address: Departm University of Southern Mississippi, 703 East Beach Dri USA. Tel.: +1 228 818 8855; fax: +1 228 818 8848. E-mail address: [email protected] (W. Wu). Hierarchical Bayesian (HB) modeling allows for multiple sources of uncertainty by factoring complex relationships into ...
In country like India, the technology should be provided to farmers with appropriate guidance to save their crops and their lives. We focused on introducing the latest technologies such as sensors, Cloud computing to radically revise approaches to agriculture by collecting the data about the various parameters of soil, analyze the data and performed the computations, giving the best optimal sol...
The Northern Guam Lens Aquifer (NGLA) presents unique challenges to modelers due to the complex hydrologic properties of its thick karst vadose zone. To meet these challenges, we developed VADOCHARGE, an analogue model based on the US Army Corps of Engineers’ Streamflow Synthesis and Reservoir Regulation (SSARR) model, to produce the effect of attenuated and lagged recharge through the vadose z...
[2] A comprehensive 30330 arc-second resolution gridded soil characteristics data set of China has been developed for use in the land surface modeling. It includes physical and chemical attributes of soils derived from 8979 soil profiles and the Soil Map of China (1:1,000,000). We used the polygon linkage method to derive the spatial distribution of soil properties. The profile attribute databa...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید