introduction agricultural biodiversity has spatial, temporal and scale dimensions especially at agro-ecosystem levels. these agro-ecosystems that are used for agriculture are determined by three sets of factors: the genetic resources (biodiversity), the physical environment and the human management practices. most agricultural areas can be returned to their natural landscape after subsequent ge...

Biodiversity and ecosystem functioning (BEF) relationships are important research issues in the context of biodiversity loss. However, most studies only explored BEF using species richness as a proxy for without considering effects evenness importance functional diversity on functioning. In present study, we multiple among in-stream environmental variables, (species evenness), (functional richn...

Quantifying landscape pattern and its change is essential for the monitoring and assessment of ecological consequences of land use change and human interference. The changing characteristics of landscape structure in the Haihe River Basin (HRB), China, during 1990 to 2000 were detected by using satellite remote sensing based land use data. Key landscape indices were selected to characterize the...

The research was conducted by observing the plankton biota, especially in interaction and relationship between riverine biota environmental factors. Plankton enable to provide an indication of changes determining diversity (H’) evenness (e) indices. sampling carried out at 4 stations with different conditions. were sampled using filtering method analysed based on their evenness. Besides, analys...

Dental and prosthetic rehabilitation possess significant challenges in patients who have Freeman-Sheldon syndrome. Microsomia is one of the main diagnostic criteria for Freeman-Sheldon syndrome, and it creates difficulty in working in the intraoral cavity. Most patients with small orifice often have difficulties in oral hygiene maintenance, and it gives rise to loss of some of the teeth. It inc...

Positiveness of scalar curvature and Ricci curvature requires vanishing the obstruction θ(M) which is computed in some KK-theory of C*-algebras index as a pairing of spin Dirac operator and Mishchenko bundle associated to the manifold. U. Pennig had proved that the obstruction θ(M) does not vanish if M is an enlargeable closed oriented smooth manifold of even dimension larger than or equals to ...

Field experiments are described involving nitrogen fertilizer in wheat field to research its effect on microbial quantity and enzyme activity. The results showed that 250 kg N hm applied in wheat field (1) can increase bacteria, fungi, actinomycetes quantity by 39.9%, 56.7% and 70.5% compare to 0 kg N hm. (2) Similarly, the activities of soil urease, catalase and FDA expressed 60.8%, 18.3% and ...

Introduction Landsat Thematic Mapper ( TM ) imagery was used to analyze patterns of landscape diversity in the seasonal tropical forests of northeastern Guatemala. TM radiance and the radiance coefficient of variation (CV) were significant in discriminating land-cover types. Cluster analysis of TM4, TM5, and TM7 radiance produced six distinct types of landcover. Green leaf biomass from TM4 and ...

Horizontal (geographic) and vertical (geonemic) spatial distribution of the integral properties of a large multispecies assemblage (1306 species of fish and invertebrate with body size ≥ 1 cm) from northwest Pacific sea bottom is investigated. There are total number and biomass, average animal size (mean individual weight), species diversity (Shannon’s index) and its components: species richnes...

Study on landscape spatial pattern in the center of Chengdu City is based on the Landsat-8 image by using 3S technique and spatial pattern analysis software Fragstats 3.3. The results showed that there covered an area of 193.92 km2 in the center of Chengdu City. 55.24% of the total area was made up of buildings, covering an area of 107.12 km2, and the overall landscape of impervious ground-base...