| 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, Jie2; Cheng, Jimin2,3,4; Hu, Tianming2; Shao, Hongbo1,5; Zhang, Jianming2 | |
| 发表期刊 | CLEAN-SOIL AIR WATER
 |
| ISSN | 1863-0650 |
| 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 |
| 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 |
| 通讯作者 | Shao, HB (reprint author), Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China. [email protected] |
| 作者部门 | 滨海湿地实验室 |
| 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. |
| 文章类型 | Article |
| 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] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | ECOSYSTEM PROCESSES ; BIODIVERSITY ; PRODUCTIVITY ; PERFORMANCE ; PLANTS |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
| WOS记录号 | WOS:000299467300003 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/5465 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_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. |
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