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1

Vegetation of early stages of succession on sandy post-cultivated lands - selected examples

100%
Adamczak A.
Seria Biologiczna. Uniwersytet im. Adama Mickiewicza w Poznaniu
|
2004
|
tom 69
2

Variations of leaf economic spectrum of eight dominant plant species in two successional stages under contrasting nutrient supply

84%
Mao W., Li Y.-L., Zhao X.-Y., Zhang T.-H., Liu X.-P.
Polish Journal of Ecology
|
2016
|
tom 64
|
nr 1
Leaf functional traits are indicators of both plant community and ecosystem responses to environmental factors and can thus increase our capacity to understand ecosystem processes and community assembly due to climate change. The variation in leaf functional traits between succession stages in Horqin Sandy Land is caused by soil nutrient content and by intrinsic biological characteristic of species, but the effects are different. Leaf economic spectra were assessed for seven leaf traits of eight species from early and advanced stages of succession. Species from early succession stages are Agriophyllum squarrosum (L.) Moq., Corispermum macrocarpum Bge., Setaria viridis (L.) Beauv. and Pennisetum centrasiaticum Tzvel., and species from advanced successional stages are Chenopodium acuminatum Willd., Chloris virgate Swartz, Digitaria sanguinalis (L.) Scop. and Leymus secalinus (Georgi) Tzvel. All these species were grown in a greenhouse experiment under two contrasting nutrient supplies including high nutrient level (N , with 20 g of nutrient addition) and low nutrient level (N-, with no added nutrients). As expected, the resource uptake strategies of the species were affected by soil fertilization addition. Leaf nitrogen content (LNC), leaf phosphorus content (LPC), and photosynthetic capacity per unit leaf area (Aarea) significantly increased at high nutrient level but LPC is more dramatically changed than others leaf traits. Leaf life span (LLS) and specific leaf area (SLA) did not show similar tendency with succession stage. At the same nutrient level, LES still shows different pattern between the early and the advanced succession stages. Species from early succession stages have higher LPC and Aarea, compared to species from advanced stages. Species from early succession stage also tend to have higher SLA and higher LNC than at the advanced succession stage. The LLS did not show any clear changes with succession process. These results provide evidence that LES shift along the succession process is mainly caused by intrinsic biological characteristic of species.
3

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

84%
Huang W.-D., Zhao X.-Y., Zhao X., Luo Y.-Y., Feng J., Su N., He Y.-Z.
Polish Journal of Ecology
|
2019
|
tom 67
|
nr 3
4

Dynamics of sandy desertification and detection of sandy land-steppe boundary: vegetation and soil properties

67%
Xu D., Xu X., Xie Y., Wang K.
Polish Journal of Ecology
|
2012
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tom 60
|
nr 2
Desertification is one of the most serious environmental problems on a global scale. China suffers from desertification over large areas. Landscape boundaries profoundly influence the structure and function of landscapes, and influence ecological processes both locally and over large scales. Data on soil properties and vegetation collected on three 110 km parallel transects across sandy land-steppe transition zone in Yanchi county, Ningxia region, northwestern China, were used to analyze changes along the sandy land/steppe boundary by using the Moving Split Window (MSW), to determine desertification dynamics, and to explore changes of vegetation and soil properties among different desertification degree. Combining the dissimilarity profiles of soil particle size with importance value (IV) of vegetation, four boundaries were detected along transects. According to the four boundaries, we divided the whole sandy land/steppe ecotone area into five desertification categories: potential desertification (PD), light desertification (LD), medium desertification (MD), severe desertification (SD) and extreme desertification (ED). Sand fractions increased, while silt and clay fractions, soil organic C, total N and available N decreased and exhibited clear gradient changes from the potential desertification land to the extreme desertification land. All areas we studied have been desertificated at different degree based upon soil particle compositions at different depths. With the aggravation of sandy desertification, the steppe species dominating in the potential desertification land gradually gave place to arid and sand tolerant perennials and therophytes and eventually to psammophyte annuals and shrubs in the extreme desertification land.
5

Influence of vegetation growth of sand excavation on the development of Mesostigmata mite communities [Arachnida, Acari]

59%
Madej G., Grec K.
Acta Biologica Silesiana
|
1994
|
tom 26
94-103
6

New locality of Opsius stactogalus FIEB.[Homoptera, Cicadellidae: Deltocephalinae] in Polsnd, as the component of the anthropogenic biotopes

43%
Szwedo J.
Acta Biologica Silesiana
|
1995
|
tom 27
59-63
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