| 陇东耕地净第一性生产力及生态服务价值的时空分异研究 |
| |
| 引用本文： | 李广,黄高宝,王琦,王兴堂,高珍妮,刘成忠.陇东耕地净第一性生产力及生态服务价值的时空分异研究[J].草业学报,2011,20(6):18-25. |
| |
| 作者姓名： | 李广 黄高宝 王琦 王兴堂 高珍妮 刘成忠 |
| |
| 作者单位： | 甘肃省干旱生境作物学重点实验室 甘肃农业大学,甘肃兰州730070;甘肃农业大学信息科学技术学院,甘肃兰州730070;甘肃农业大学农学院,甘肃兰州,730070;甘肃农业大学草业学院,甘肃兰州730070;中科院寒区旱区环境与工程研究所青藏高原冰冻圈观测研究站,甘肃兰州730000;甘肃农业大学信息科学技术学院,甘肃兰州,730070 |
| |
| 摘 要： | 为促进甘肃陇东耕地生态系统和经济持续健康发展,该研究采用生产力和生态服务价值的估算方法,对研究区域耕地净第一性生产力( NPP)和生态服务功能的时空分异进行定量分析.结果表明,1997-2005年陇东黄土高原耕地的NPP和生态服务单位面积价值变化不明显,而总量略有上升.同时,耕地的NPP和生态服务单位面积价值在空间分布...
|
| 关 键 词： | 陇东 耕地 NPP 生态服务价值 时空分异 |
| 收稿时间： | 2010-06-29 |
Spatial-temporal distribution of the ecological service value and NPP of cultivated land on Longdong Loess Plateau |
| |
| LI Guang,HUANG Gao-bao,WANG Qi,WANG Xing-tang,GAO Zhen-ni,LIU Cheng-zhong.Spatial-temporal distribution of the ecological service value and NPP of cultivated land on Longdong Loess Plateau[J].Acta Prataculturae Sinica,2011,20(6):18-25. |
| |
| Authors: | LI Guang HUANG Gao-bao WANG Qi WANG Xing-tang GAO Zhen-ni LIU Cheng-zhong |
| |
| Institution: | 1.Gansu Provincial Key laboratory of Aridland Crop Science,Gansu Agricultural University,Lanzhou 730070,China;2.College of Information Science and Technology,Gansu Agricultural University, Lanzhou 730070,China;3.College of Agronomy,Gansu Agricultural University,Lanzhou 730070,China;4.College of Grassland Science,Gansu Agricultural University,Lanzhou 730070,China;5.Cryosphere Research Station on Qinghai-Xizang Plateau, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences,Lanzhou 730000,China) |
| |
| Abstract: | The heterogeneity in spatial-temporal scale of the net primary productivity(NPP) and ecological service value was studied to keep a healthy ecological system of cultivated land by using methods related to the ecological system service and productivity assessment.The changes in NPP and the unit area value of ecological service were not distinct with the total increasing from 1997-2005.The spatial distribution of NPP and ecological service value was very obvious and divided into the lower value in the northwest area and the higher value in the southeast area.The unit area value of ecological service was about 10.2×104 yuan/(ha·a) and NPP was about 5.04 t/(ha·a) in the southeast area,while in the northwest area,they were 7.7×104 yuan/(ha·a) and 3.54 t/(ha·a) respectively.The NPP and ecological service value would be improved by using precipitation resources with rational and high efficiency under the conditions of optimal crop layout and adjusted plant structure. |
| |
| Keywords: | Longdong cultivated land NPP ecological service value spatial-temporal distribution |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《草业学报》浏览原始摘要信息 |
| 点击此处可从《草业学报》下载免费的PDF全文 |
|
