Impacts of land use and land cover changes upon organic productivity values in karst ecosystems: a case study of northwest guangxi, china
文献类型：期刊论文
| 作者 | Zhang, Mingyang1,3,4; Wang, Kelin1,3; Chen, Hongsong1,3; Liu, Huiyu2; Yue, Yuemin1,3,4; Zhang, Wei1,3 |
| 刊名 | Frontiers of earth science
 |
| 出版日期 | 2010-03-01 |
| 卷号 | 4期号:1页码:3-13 |
| 关键词 | Karst Organic productivity values (opv) Land use and land cover (lulc) Spatio-temporal variations |
| ISSN号 | 2095-0195 |
| DOI | 10.1007/s11707-010-0005-9 |
| 通讯作者 | Wang, kelin(kelin@isa.ac.cn) |
| 英文摘要 | Karst areas are one of the most fragile regions in the world. the karst environment is very common in southwest china with severe poverty and environmental degradation. therefore, it is necessary to monitor the karst ecosystem and its ability to provide goods and services for society. in this paper, we analyzed the spatial distribution of organic productivity values (opv) in northwest guangxi, china in 1985, 1990, 2000, and 2005 using remote sensing and geographic information system techniques. opv showed a decreasing trend in the last 20 years though there were fluctuations. opv was 184.85, 117.53, 163.66 and 177.25 million yuan in 1985, 1990, 2000 and 2005, respectively. woodland and shrub were the two largest contributors to total opv. they accounted for 70.51%, 69.13%, 73.92% and 66.23%, respectively, in those four years. conversely, opv of residential and barren rock was low with a percentage of 0.70%, 0.56%, 0.57% and 0.90%, respectively. spatially, opv is higher in the west than in the east. however, opv increased in typical karst areas but decreased in non-karst areas. our study indicates that ecosystem conditions in karst areas had improved because of the application of rocky desertification control policies. |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000208725500002 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2413199 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wang, Kelin |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Agroecol Proc Subtrop Reg, Inst Subtrop Agr, Changsha 410125, Hunan, Peoples R China 2.Nanjing Normal Univ, Coll Geog Sci, Nanjing 210046, Jiangsu, Peoples R China 3.Chinese Acad Sci, Huanjiang Observat & Res Stn Karst Ecosyst, Huanjiang 547100, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Mingyang,Wang, Kelin,Chen, Hongsong,et al. Impacts of land use and land cover changes upon organic productivity values in karst ecosystems: a case study of northwest guangxi, china[J]. Frontiers of earth science,2010,4(1):3-13. |
| APA | Zhang, Mingyang,Wang, Kelin,Chen, Hongsong,Liu, Huiyu,Yue, Yuemin,&Zhang, Wei.(2010).Impacts of land use and land cover changes upon organic productivity values in karst ecosystems: a case study of northwest guangxi, china.Frontiers of earth science,4(1),3-13. |
| MLA | Zhang, Mingyang,et al."Impacts of land use and land cover changes upon organic productivity values in karst ecosystems: a case study of northwest guangxi, china".Frontiers of earth science 4.1(2010):3-13. |
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来源：中国科学院大学
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