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1

Factors affecting alien and native plant species richness in temperate nature reserves of Northern China

100%
Zhang X., Wang H., Wang S., Wang R., Wang Y., Liu J.
Polish Journal of Ecology
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2017
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tom 65
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nr 4
Understanding the factors affecting the species richness of alien and native plant is a key issue for predicting the spread of alien species and protecting rare and endangered native species in nature reserves. To investigate the factors affecting alien and native species richness in temperate nature reserves of China, we used a database of 25 nature reserves in Shandong Province of northern China, and studied the relationship of alien and native plant species richness with climatic and anthropogenic factors, as well as area and elevation range. We found that most of the nature reserves in Shandong Province have been invaded by alien plant species. The distribution of alien and native species responds to the same climatic factors, and temperature and precipitation exert strong effects on both groups. Alien and native plant species richness are positively correlated. Human activity is more effective for explaining richness of alien than for native species. Simultaneously, human activity has stronger effects on alien herbaceous than on alien woody plants. Our results suggest that native species richness is mainly explained by climatic factors, whereas alien species richness is mainly explained by climatic factors and human activity together.
2

Responses of physiological characteristics of annual C4 herbs to precipitation and wind changes in semi-arid sandy grassland, Northern China

100%
Sun S., Liu X., He Y., Lv P., Chelmeg, Zhang L., Wei S.
Polish Journal of Ecology
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2020
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tom 68
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nr 2
3

Seroprevalence and correlates of Toxoplasma gondii infection in dairy cattle in Northwest China

100%
Tan Q.-D., Yang X.-Y., Yin M.-Y., Hu L.-Y., Qin S.-Y., Wang J.-L., Zhou D.-H., Zhu X.-Q.
Acta Parasitologica
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2015
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tom 60
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nr 4
4

Genetic diversity in Salix gordejevii populations from different environmental gradients in Horqin Sandy Land, Northern China

100%
Huang W.-D., Zhao X.-Y., Zhao X., Luo Y.-Y., Feng J., Su N., He Y.-Z.
Polish Journal of Ecology
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2019
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tom 67
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nr 3
5

Water- and N-induced changes in soil C:N:P stoichiometry and its implications for N limitation of a desert steppe species, Glycyrrhiza uralensis

100%
Huang J., Yu H., Zhang F., Li M., Lin H.
Polish Journal of Ecology
|
2016
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tom 64
|
nr 2
Changes in precipitation patterns and the deposition of atmospheric nitrogen (N) increase the possibility of altering soil carbon (C):N:phosphorus (P) stoichiometry through their effects on soil C and nutrient dynamics, especially in water- and N-limited ecosystems. We conducted separate 2-year watering and N addition experiments, and examined soil C:N:P stoichiometry, relative growth rate, and leaf N resorption traits of Glycyrrhiza uralensis Fisch in a desert steppe of northwestern China. Our objectives were to determine how soil C:N:P stoichiometry responded to climate change, and its indications for plant growth and N resorption. The results showed that additional water increased N loss and thus decreased N availability, resulting in high N resorption from senescing leaves of G. uralensis. N addition increased N availability, consequently reducing plant N dependence on leaf resorption. High relative growth rates occurred with intermediate N:P and C:N ratios, while high N resorption occurred with a low N:P ratio but a high C:N ratio. Our results indicate that soil C:N:P stoichiometry also could be a good indicator of N limitation for desert steppe species. Altered soil C:N:P stoichiometry affects the N strategy of plants, and will be expected to further influence the structure and function of the desert steppe community in the near future.
6

Seasonal changes of soil nitrogen mineralization along restoration gradient of sandy grassland, Northern China

80%
Lv P., Zuo X., Sun S., Zhang J., Zhao S., Hu Y.
Polish Journal of Ecology
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2020
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tom 68
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nr 4
7
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Physical properties of unproductive soils of Northern China

80%
Malik Z., Malik M. A., Zong Y.-T., Lu S.-G.
International Agrophysics
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2014
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tom 28
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nr 4
The general characteristics: particle size distribution, pH, cation exchange capacity, organic matter content, total NPK, surface area; and physical properties: coefficient of linear extensibility, tensile strength, shear strength and cracking, were investigated in unproductive soils of Northern China. Principle component analysis showed that tensile strength, cohesion, cracking characteristics, clay content, cation exchange capacity and coefficient of linear extensibility were positively correlated with each other, whereas negatively correlated with angle of friction, indicating that these properties were subjected to clay % and smectite content. These correlations might be mainly responsible for low productivity (low yields) in Northern China.
8

New data on Late Miocene - Pleistocene ochotonids [Ochotonidae, Lagomorpha] from North China

80%
Erbajeva M. A., Zheng S.
Acta Zoologica Cracoviensia. Ser.A Vertebrata
|
2005
|
tom 48A
|
nr 1-2
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