نتایج جستجو برای: fallow lands and forest in central zones
تعداد نتایج: 21788340 فیلتر نتایج به سال:
Deforestation for conventional farming has affected soil quality (SQ) worldwide. The goal of our study was to evaluate the impact land use change, from forest subsistence farming, on SQ in Benin. Composite soils forest, horticultural, agricultural, fallow, and degraded lands were collected analyze chemical physical properties. Using inductive additive approach principal component analysis (PCA)...
Asclepias syriaca L. is species-introduced with high potential as a source of biofuel, an important fodder crop for beekeeping, possible biologically active substances. However, the species has invasive activity and may pose threat to biodiversity natural plant communities. And also economic agroecosystems segetal species. In agricultural landscapes central Russia in various habitats dynamics s...
Caspian Sea coastline in the Mazandaran province has been altered as a result of activities of developers attracted to aesthetic and coastal recreational aspects of forest ecosystems. Advances in GIS and RS techniques, has made it possible to study the coastal areas for better management. Hence, the present study was undertaken to determine land cover changes via applying cross classificat...
This study explores the influence of land-use and land cover (LULC) changes on temperature over North India (NI) North-Eastern (NEI) during 1981–2006 by subtracting reanalysis from observed (observation minus (OMR) method). The normalized difference vegetation index (NDVI) data AVHRR satellite for period were analyzed to understand type LULC this their linkage with change two regions. results O...
The article focuses on the initial stage of virgin and fallow lands development in Pavlodar region. authors elaborated climatic features region, noting that this territory was characterized by complex natural zones had huge deposits minerals. climate north-eastern Kazakhstan sharply continental, arid, soils were mostly unsuitable for farming, so cultivation grain crops fraught with risks diffic...
Before studying the mechanisms by which changes in vegetation influence the nematode community following abandonment of a field, it is necessary to first assess the impact of environmental factors such as soil or climate on these organisms. The study was undertaken on sites of increasing fallow duration located in the same area in the Sudano-Sahelian zone of Senegal: a forest and 10 fallow site...
The seedlings and saplings plant stage determines the successional stages in secondary forest establishment process. estimation on aboveground biomass (AGB) of seedling sapling plants is needed to describe undergrowth's contribution forest. This study's objective was develop allometric equations for accurate AGB for seedlings-saplings 10 20 years old forests. study carried out at sites with ...
Spreading wood ash on forest and agricultural lands has been used for years to correct pH in acid soils and as a source of plant nutrients. However, it is necessary to enhance the knowledge of potential hazards derived from such a practise. Surface runoff pollution is one of these possible hazards. In this work we studied the quality of runoff water collected in two sloped forest plots before a...
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