| 毋兆鹏.博尔塔拉河与精河流域绿洲植被盖度变化特点及其驱动力分析[J].干旱地区农业研究,2010,28(2):249~256 |
| 博尔塔拉河与精河流域绿洲植被盖度变化特点及其驱动力分析 |
| Analysis of vegetation coverage change and its driving factors in Bohe and Jinghe Oasis, Xinjiang |
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| DOI：10.7606/j.issn.1000-7601.2010.02.50 |
| 中文关键词: 博尔塔拉河、精河流域 绿洲 植被盖度 变化 驱动力 |
| 英文关键词:Bohe and Jinghe Watershed oasis vegetation coverage change driving factor |
| 基金项目:国家自然科学基金项目（40961039）；新疆维吾尔自治区重点学科绿洲学；新疆高校科研计划青年教师科研启动基金（XJEDU2008S32）；新疆师范大学博士后科研启动基金(xjnubs0901) |
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| 中文摘要: |
| 绿洲是维系干旱地区人类生存、活动与发展的基本场所。探讨植被盖度在时间和空间尺度上的动态变化及由此所引起的环境效应，对合理利用绿洲国土资源具有重要战略意义。本研究利用1990年到2005年遥感数据资料，计算了博尔塔拉河、精河流域绿洲植被盖度，分析了该地区植被盖度的历史演变特征。结果显示：（1）1990～2000年期间，植被退化型所占比例最大，弃耕型所占比例最低；（2）2000～2005年期间，植被恢复型所占比例最大，弃耕型所占比例最低；（3）1990～2005年的16年间，研究区总体呈现植被恢复趋势。结果也表明：影响研究区绿洲植被盖度的主要自然因素是年降水量和年蒸发量，而人口剧增带来的水土资源开发强度增大则是主要人文因素。 |
| 英文摘要: |
| Oasis is a basic place to maintain human living, activity and development. It has important significance to utilizing land resources reasonably to study vegetation coverage change on spatio-temporal scale. Based on the remote sensing data, the paper calculated the vegetation coverage and analyzed the characteristics of its historical evolution from 1990 to 2005. The results showed that: (1) The largest proportion of vegetation coverage was vegetation degeneration, moreover, the lowest proportion of vegetation coverage was farmland discarded from 1990 to 2000. (2) The largest proportion of vegetation coverage was vegetation restoration; moreover, the lowest proportion of vegetation coverage was farmland discarded from 1990 to 2000. (3) The overall characteristic of vegetation coverage was vegetation restoration in research region from 1990 to 2005. The main natural in
fluencing factors on oasis vegetation coverage are precipitation and evaporation. The population growth and land and water resources exploitation are the main humanity influencing factors. |
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