Response of soil properties to yak grazing intensity in a Kobresia parva-meadow on the Qinghai-Tibetan Plateau, China

被引：17

作者：

Dong, Q. M. ^{[1
,2
]}

Zhao, X. Q. ^{[3
]}

Wu, G. L. ^{[4
,5
]}

Shi, J. J. ^{[1
,2
]}

Wang, Y. L. ^{[1
,2
]}

Sheng, L. ^{[1
,2
]}

机构：

[1] Qinghai Acad Anim & Vet Sci, Key Lab Alpine Grassland Ecosyst Three River Head, Xining 810016, Qinghai, Peoples R China

[2] Minist Educ, Xining 810016, Qinghai, Peoples R China

[3] Chinese Acad Sci, NW Plateau Inst Biol, Xining 810003, Qinghai, Peoples R China

[4] Chinese Acad Sci, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China

[5] NW A&F Univ, Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China

来源：

JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION | 2012年 / 12卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Grazing intensity; biomass; soil properties; Kobresia parva-meadow; three-river headwaters region; NORTHERN CHINA; CARBON STORAGE; COMPETITION; GRASSLAND; FEEDBACK;

D O I：

10.4067/S0718-95162012005000024

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Grazing intensity is one of the most important factors influencing soil properties variations in rangeland ecosystem. This research aimed to study the features of soil properties under different grazing intensity in a Kobresia parva-meadow on the Qinghai-Tibetan Plateau, China. Results showed that soil organic matter (SOM), soil organic carbon (SOC), and total nitrogen (N) significantly decreased with an increase grazing intensity and total and available potassium (K), and C/N ratio exhibited a similar pattern. However, there were not significant differences between warm-season pasture (WSP) and cool-season pasture (CSP). In addition, results indicated that soil P was a limited factor, and N was sensitive to grazing intensity in Kobresia parva alpine meadow grazing ecosystem. Therefore, our study demonstrated that soil properties, such as soil carbon and nitrogen, generally decreased with the increasing of grazing intensity in studied Kobresia parva-meadow on the Qinghai-Tibetan Plateau.

引用

页码：535 / 546

页数：12

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