Under rapid urban sprawl in Northeast China, land conversions are not only encroaching on the quantity of cultivated lands, but also posing a great threat to black soil conservation and food security. This study's aim is to explore the spatial relationship between comprehensive cultivated soil heavy metal pollution and peri-urban land use patterns in the black soil region. We applied spatial la...

Desertification in Qinghai-Xizang (Tibet) Plateau is part of Chinese desertification. In the past decades, due to the climate warming, the climate condition in Qinghai-Xizang (Tibet) Plateau has been relatively dry. This has resulted in permafrost degradation and other environmental problems. In addition, the vegetation and the soil layer were also destroyed by unreasonable economic activities....

Polycarpaea corymbosa (L) Lam, is a weed which belongs to Caryophyllaceae family is seen throughout India. It is distributed in tropical Asia and Australia. It is quite common in Gujarat is waste lands and in cultivated fields. It is a small, erect annual herb. Simple or branched woody at base. Stem and branches slender and faintly terete. Pale green in colour and pubescent in younger parts. Le...

The biological values of the proteins of pea meal, rye bread (baked from 70 % rye flour by the Municipal Bakeries in Warsaw), of two mixtures of wheat rolls and pea meal and of two mixtures of rye bread and pea meal have been determined by the method of Osborne et al. [1919]. The bread was dried at 350 and the dry product ground in a mill. The peas were boiled, dried and ground. The following m...

Flooding is a natural disturbance affecting crop and forage production worldwide due to the detrimental effects that it provokes on most terrestrial plants (Bailey-Serres & Voesenek, 2008; Colmer & Vosenek, 2009). Over the last years, the Intergovernmental Panel on Climate Change (http://www.ippc.ch) has informed that man-induced world climate change will increase the frequency of precipitation...

Using enzyme polymorphism at IO loci , genetic variation was analysed in both wi ld and cuiti vated olive growing around the Mediterranean Basin. Twenty five and 21 alle1es were observed in the 333 wild olive trees analysed and in the culti ved materia1 (418 trees) respectively. Twenty one of these alleles were common to the two forms. In addition, in most the situations of sympatry between wil...

Pea seeds were swollen in solutions with different concentrations of cytokinin benzyladenine (BA). As compared with controls, a low concentration of BA (0.05 mg/l) did not affect the growth of stems and roots of twelve-day-old seedlings but concentrations of 0.20–4.00 mg/l showed an inhibiting effect; this inhibition was proportional to the concentration of BA. In controls the ratio between the...

Cultivated land has been feeding the world for thousands of years. Only in the last few decades, remote sensing is used to assess and monitor the extent and status of cultivated land. One of the greatest challenges when working with existing land cover datasets is the lack of consistent and reliable data on the location and area intensity of cultivation. By most counts land cover datasets ident...