Influences of continuous grazing and livestock exclusion on soil properties in a degraded sandy grassland, Inner Mongolia, northern China
Tóm tắt
Từ khóa
Tài liệu tham khảo
Bauer, 1987, Soil property comparison in virgin grasslands between grazed and nongrazed management systems, Soil Sci. Soc. Am. J., 51, 176, 10.2136/sssaj1987.03615995005100010037x
Frank, 1995, Soil carbon and nitrogen of Northern Great Plains grasslands as influenced by long-term grazing, J. Range Manag., 48, 470, 10.2307/4002255
Frankenberger, 1983, Relationships between enzyme activities and microbial growth and activity indices in soil, Soil Sci. Soc. Am. J., 47, 947, 10.2136/sssaj1983.03615995004700050021x
Hennessy, 1986, Soil sorting by forty-five years of wind erosion on a southern New Mexico range, Soil Sci. Soc. Am. J., 50, 391, 10.2136/sssaj1986.03615995005000020027x
Hiernaux, 1999, Effects of livestock grazing on physical and chemical properties of sandy soils in Sahelian rangelands, J. Arid Environ., 41, 231, 10.1006/jare.1998.0475
1978, 7
Johnson, 1964, Some variables affecting the measurement of catalase activity in soil, Proc.-Soil Sci. Soc. Am., 28, 207, 10.2136/sssaj1964.03615995002800020024x
Li, 2000, Grassland desertification by grazing and the resulting micrometeorological changes in Inner Mongolia, Agric. For. Meteorol., 102, 125, 10.1016/S0168-1923(00)00101-5
Mainguet, 1994
Manzano, 2000, Processes of desertification by goats overgrazing in the Tamaulipan thrnscrub (matorral) in north-eastern Mexico, J. Arid Environ., 44, 1, 10.1006/jare.1999.0577
Mazzarino, 1991, Factors affecting nitrogen dynamics in a semiarid woodland (Dry Chaco, Argentina), Plant Soil, 138, 85, 10.1007/BF00011811
Nelson, 1982, Total carbon, organic carbon and organic matter, vol. 9, 539
Reeder, 2002, Influence of livestock grazing on C sequestration in semi-arid mixed-grass and short-grass rangelands, Environ. Pollut., 116, 457, 10.1016/S0269-7491(01)00223-8
Su, 2003, Soil properties and plant species in an age sequence of Caragana microphylla plantations in the Horqin Sandy Land, north China, Ecol. Eng., 20, 223, 10.1016/S0925-8574(03)00042-9
Su, 2004, Soil properties following cultivation and non-grazing of a semiarid sandy grassland in northern China, Soil Tillage Res., 75, 27, 10.1016/S0167-1987(03)00157-0
Tabatabai, 1972, Assay of urease activity in soils, Soil Biol. Biochem., 4, 479, 10.1016/0038-0717(72)90064-8
Taylor, 1993, Grazing systems on the Edwards Plateau of Taxas: are they worth the trouble?, Rangelands, 15, 53
Van de Ven, 1989, Vegetation characteristics and soil loss by wind, J. Soil Water Conserv., 44, 47
Xu, 1994, An experimental study on the differential characteristics of the plant communities under the different grazing gradation and the mechanism of desertification in the natural sandy rangeland, J. Lanzhou Univ. (Nat. Sci.), 30, 137
Zhang, 1998, Grasslands in desert area in China, 1
Zhao, 1998, The effects of exclosure and its evaluation of degraded rangeland in Horqin Sandy Land, J. Desert Res., 18, 47
Zhao, 1999, Cluster analysis on change laws of the vegetation under different grazing intensities in Horqin sandy pasture, J. Desert Res., 19, 40
Zhou, 1980, Analysis methods for soil enzyme activities, J. Soil Sci., 5, 37
Zhou, 1992, The dynamics of pH in the rhizosphere and its effects, vol. 1, 50
Zhu, 1994, 250