Dynamic Changes of Stipa bungeana Steppe Species Diversity as Better Indicators for Soil Quality and Sustainable Utilization Mode in Yunwu Mountain Nature Reserve, Ningxia, China

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	Dynamic Changes of Stipa bungeana Steppe Species Diversity as Better Indicators for Soil Quality and Sustainable Utilization Mode in Yunwu Mountain Nature Reserve, Ningxia, China
	Cheng, Jie 2; Cheng, Jimin 2,3,4; Hu, Tianming 2; Shao, Hongbo 1,5; Zhang, Jianming 2
刊名	CLEAN-SOIL AIR WATER
	2012-02-01
卷号	40 期号:2 页码:127-133
关键词	Nature Reserve Soil Quality Species Diversity Dynamics Stipa Bungeana Steppe Sustainable Utilization Mode
ISSN号	1863-0650
通讯作者	Shao, HB (reprint author), Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China. shaohongbochu@126.com
产权排序	[Shao, Hongbo] Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China; [Cheng, Jie; Cheng, Jimin; Hu, Tianming; Zhang, Jianming] NW A&F Univ, Yangling, Peoples R China; [Cheng, Jimin] Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Peoples R China; [Cheng, Jimin] Minist Water Resources, Yangling, Peoples R China; [Shao, Hongbo] Chinese Acad Sci, Yantai Inst Costal Zone Res, CAS Shandong Prov Key Lab Coastal Environm Proc, Yantai, Peoples R China
文献子类	Article
英文摘要	Due to serious degradation of typical Stipa bungeana steppe community on the Loess Plateau, a 26-year (19822007) experiment has been carried out by methods of forbidden grazing, cutting, and rotational grazing. Our results show that the process of succession of long-term enclosed S. bungeana community can be divided into two stages: 19801996, the forward succession stage, when the species diversity and biomass reach the peak (33.7?species/m2 and 1349.41?g/m2, respectively); 19972007, the slow succession stage, when the gradually thickening of litter layer (litter depth reaches 35?cm) directly causes the reduction of species diversity and biomass to 19.1?species/m2 and 863.19?g/m2, respectively. While under the cutting and rotational grazing methods, grassland succession can be divided into four stages: 1st5th year, the continuing growth stage; 6th9th year, the vigorous competing stage; 10th15th year, the aggregation growth stage of constructive species with biomass reaching the peak (1444.19?g/m2); and 16th23rd year, stable growth stage of constructive species, which form sub-climax and are eventually dominated by S. bungeana, with the species diversity and biomass of 2527?species/m2 and 956.761165.35?g/m2, respectively. The constructive species suddenly change in the 24th year, and the population of S. grandis increases rapidly to 21?m-2 accounting for 25% of the total plant population. Long-term enclosure leads to decreased species diversity and biomass and is not beneficial for grassland renewing. The species diversity and biomass of degraded grassland continuously decrease to 10?species/m2 and 392.1?g/m2 due to long-term artificial failure and transitionally grazing, leading to harden soil with slow rainfall infiltration, where plants can only sustain life under the drought condition. Therefore, reasonable cutting and rotational grazing are the methods of choice for the gradual increase of species diversity and promotion of the natural renewal and forward succession of the grassland on Loess Plateau. These results provide reliable information for the diversity dynamic change as better indictors of soil quality and sustainable utilization mode.; Due to serious degradation of typical Stipa bungeana steppe community on the Loess Plateau, a 26-year (19822007) experiment has been carried out by methods of forbidden grazing, cutting, and rotational grazing. Our results show that the process of succession of long-term enclosed S. bungeana community can be divided into two stages: 19801996, the forward succession stage, when the species diversity and biomass reach the peak (33.7?species/m2 and 1349.41?g/m2, respectively); 19972007, the slow succession stage, when the gradually thickening of litter layer (litter depth reaches 35?cm) directly causes the reduction of species diversity and biomass to 19.1?species/m2 and 863.19?g/m2, respectively. While under the cutting and rotational grazing methods, grassland succession can be divided into four stages: 1st5th year, the continuing growth stage; 6th9th year, the vigorous competing stage; 10th15th year, the aggregation growth stage of constructive species with biomass reaching the peak (1444.19?g/m2); and 16th23rd year, stable growth stage of constructive species, which form sub-climax and are eventually dominated by S. bungeana, with the species diversity and biomass of 2527?species/m2 and 956.761165.35?g/m2, respectively. The constructive species suddenly change in the 24th year, and the population of S. grandis increases rapidly to 21?m-2 accounting for 25% of the total plant population. Long-term enclosure leads to decreased species diversity and biomass and is not beneficial for grassland renewing. The species diversity and biomass of degraded grassland continuously decrease to 10?species/m2 and 392.1?g/m2 due to long-term artificial failure and transitionally grazing, leading to harden soil with slow rainfall infiltration, where plants can only sustain life under the drought condition. Therefore, reasonable cutting and rotational grazing are the methods of choice for the gradual increase of species diversity and promotion of the natural renewal and forward succession of the grassland on Loess Plateau. These results provide reliable information for the diversity dynamic change as better indictors of soil quality and sustainable utilization mode.
学科主题	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
URL标识	查看原文
WOS关键词	ECOSYSTEM PROCESSES ; BIODIVERSITY ; PRODUCTIVITY ; PERFORMANCE ; PLANTS
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
语种	英语
WOS记录号	WOS:000299467300003
资助机构	Chinese Academy of Sciences[KZCX2-YW-441, KZCX2-YW-149]; 973 Project[2007CB106803]; National Natural Science Foundation of China[40730631]; Open Foundation of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[10502-Z8]
公开日期	2012-06-13
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/5466]
专题	烟台海岸带研究所_滨海湿地实验室
作者单位	1.Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China 2.NW A&F Univ, Yangling, Peoples R China 3.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Peoples R China 4.Minist Water Resources, Yangling, Peoples R China 5.Chinese Acad Sci, Yantai Inst Costal Zone Res, CAS Shandong Prov Key Lab Coastal Environm Proc, Yantai, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Jie,Cheng, Jimin,Hu, Tianming,et al. Dynamic Changes of Stipa bungeana Steppe Species Diversity as Better Indicators for Soil Quality and Sustainable Utilization Mode in Yunwu Mountain Nature Reserve, Ningxia, China[J]. CLEAN-SOIL AIR WATER,2012,40(2):127-133.
APA	Cheng, Jie,Cheng, Jimin,Hu, Tianming,Shao, Hongbo,&Zhang, Jianming.(2012).Dynamic Changes of Stipa bungeana Steppe Species Diversity as Better Indicators for Soil Quality and Sustainable Utilization Mode in Yunwu Mountain Nature Reserve, Ningxia, China.CLEAN-SOIL AIR WATER,40(2),127-133.
MLA	Cheng, Jie,et al."Dynamic Changes of Stipa bungeana Steppe Species Diversity as Better Indicators for Soil Quality and Sustainable Utilization Mode in Yunwu Mountain Nature Reserve, Ningxia, China".CLEAN-SOIL AIR WATER 40.2(2012):127-133.