Effects of grazing and livestock exclusion on soil physical and chemical properties in desertified sandy grassland, Inner Mongolia, northern China
| العنوان: | Effects of grazing and livestock exclusion on soil physical and chemical properties in desertified sandy grassland, Inner Mongolia, northern China |
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| المؤلفون: | Tonghui Zhang, Xueyong Zhao, Yuqiang Li, Yulin Li, Halin Zhao, Jianyuan Cui |
| المصدر: | Environmental Earth Sciences. 63:771-783 |
| بيانات النشر: | Springer Science and Business Media LLC, 2010. |
| سنة النشر: | 2010 |
| مصطلحات موضوعية: | Hydrology, Global and Planetary Change, Topsoil, Soil Science, Geology, Silt, Pollution, Bulk density, Soil retrogression and degradation, Environmental chemistry, Soil water, Grazing, Exclosure, Cation-exchange capacity, Environmental Chemistry, Earth-Surface Processes, Water Science and Technology |
| الوصف: | Heavy grazing is recognized as one of the main causes of vegetation and soil degradation and desertification in the semiarid Horqin sandy grassland of northern China. Soil physical and chemical properties were examined under continuous grazing and exclusion of livestock for 8 years in a representative desertified sandy grassland. Exclosure increased the mean soil organic C, total N, fine sand and silt + clay contents, inorganic C (CaCO3), electrical conductivity, and mineral contents (including Al2O3, K2O, Na2O, Fe2O3, CaO, MgO, TiO2, MnO), microelements (Fe, Mn, Zn, B, Cu, Mo), and heavy metals (Pb, Cr, Ni, As, Hg, Cd, Se), and decreased the coarse sand content, bulk density, and SiO2 in the top 100 cm of the soil. Livestock exclusion also improved available N, P, K, Fe, Mn, and Cu, exchangeable K+, and the cation exchange capacity, but decreased pH, exchangeable Na+, and available S, Zn, and Mo in the top 20 cm of the soil. The greatest change in soil properties was observed in the topsoil. The results confirm that the desertified grassland is recovering after removal of the livestock disturbance, but that recovery is a slow process. |
| تدمد: | 1866-6299 1866-6280 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::33796c41373aaca171c68425f4836d50Test https://doi.org/10.1007/s12665-010-0748-3Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi...........33796c41373aaca171c68425f4836d50 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 18666299 18666280 |
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