نتایج جستجو برای: dry land
تعداد نتایج: 206267 فیلتر نتایج به سال:
quantitative soil quality assessment in different land uses at some parts of south eastern of qazvin
assessment of soil quality is one of the most useful tools for evaluation the soil management condition and different land uses. quantity indices of soil quality are most suitable methods for determination and comparison of soils quality. in this study soil quality indices and selection methods of effective soil properties were compared for evaluating the soil quality in different land uses. se...
the objective of this research was to determine the best model and compare performances in terms of producing landuse maps from six supervised classification algorithms. as a result, different algorithms such as the minimum distance ofmean (mdm), mahalanobis distance (md), maximum likelihood (ml), artificial neural network (ann), spectral anglemapper (sam), and support vector machine (svm) were...
By using a coupled land surface-atmosphere model with initial conditions of varying resolution and ensembles of systematically changed soil moisture, convective-scale simulations of a typical frontal rainstorm in the Yangtze River Basin are collected to investigate: (1) effects of different datasets on the simulated frontal mesoscale convective systems (MCSs); (2) possible linkages between soil...
The scope for enhancement of productivity under irrigated conditions is limited due to over-exploitation available resources However, there ample opportunity boosting yield in drylands by adopting suitable crops and cropping systems. agricultural sustainability comparatively hard achieve different constraints like poor soil fertility, lack irrigation facilities moisture stress, small holdings l...
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