نتایج جستجو برای: arable lands

تعداد نتایج: 13807  

Journal: :Agriculture 2021

Ex-arable land-use change is a global issue with significant implications for climate and impact phytocenosis productivity soil quality. In temperate humid grassland, we examined the of variability changes properties on 23 years grass after conversion ex-arable to abandoned land (AL), unfertilized, fertilized managed grassland (MGunfert MGfert, respectively). This study aimed investigate betwee...

Journal: :Agriculture 2021

Soil salinity is a serious threat to coastal agriculture and has resulted in significant reduction agricultural output many regions. Jaffna Peninsula, semi-arid region located the northern-most part of Sri Lanka, also victim adverse effects salinity. This study investigated long-term soil changes their link with land use changes, especially paddy land. Two Landsat images from 1988 2019 were use...

2001
A. A. Jaradat

The Fertile Crescent is a high biodiversity region where most temperate-zone agricultural species originated and were first domesticated. A favorable environment, a special plant community, and an adaptive population combined to initiate the Neolithic—the New Stone Age—in the Fertile Crescent. However, over time, valuable plant genetic resources of the region are being eroded through degradatio...

جلیل اصغری میدانی خشنود علیزاده دیزج علیرضا فخرواعظی, فرهاد آهک‌پز محسن مهدیه مقصود حسن پورحسنی

    Drylands cover about 6.2 million hectares of arable lands across Iran, but annual feed legumes are not present in rainfed crop rotations. Introduction of new forage cultivars with high productivity and nutritive values is a key solution in drylands development. Vd-2446 a vetch (Vicia dasycarpa) line with origin of Italy has been selected from vetch nurseries provided by ICARDA during 1995 a...

Elham Kalbali Mostafa Mardani Saman Ziaee Samira Soltani

Water shortage crisis is an issue that has led to drastic changes in different agricultural policies, especially in arid and semi-arid areas. Uncertainty in the amount of resources, e.g. water, used for agricultural production entails risk for farmers' income and cropping pattern changes. In the present study, the robust optimization model was used for optimal allocation of arable lands of Khor...

Journal: :Int. J. Applied Earth Observation and Geoinformation 2010
Amon Murwira Andrew K. Skidmore H. J. G. Huizing Herbert H. T. Prins

We investigated whether the proportion of remotely sensed arable fields increased along a tsetse eradication gradient in the Sebungwe region. We also investigated whether and to what extent this increase in arable fields affected the distribution of the African elephant (Loxodonta africana) between the 1980s and 1990s. Results showed a relatively higher increase in the proportion of arable fiel...

Journal: : 2022

The article describes the technical condition of irrigation networks Talas district Zhambyl region and analyzes indicators its impact on dynamics changes in area ​​irrigated land. Based data field work carried out recent years statistics, areas irrigated arable land is shown, factors affecting reduction are identified. lands have a very convenient water supply sewerage system, but due to fact t...

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