| 延安研究区植被分步恢复的试验研究 |
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| 引用本文： | 孙强,薛智德,张丽萍. 延安研究区植被分步恢复的试验研究[J]. 水土保持研究, 2006, 13(2): 154-156 |
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| 作者姓名： | 孙强 薛智德 张丽萍 |
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| 作者单位： | 西北农林科技大学资源与环境学院,陕西,杨陵,712100 |
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| 基金项目： | 国家自然科学资金(90302005)，知识创新项目(kzlx1-06) |
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| 摘 要： | 采用时间和空间序列相结合的方法,对延安研究区的植物群落动态变化及其演替规律观测研究的基础上,完善了前人对此区植物群落演替序列;遵循植物群落演替规律开展植被分步恢复试验,结果表明:在不破坏现有植被的条件下,分步恢复可使当年甘肃鼢鼠危害率减少30%~40%,油松造林保存率提高50%左右,方差分析显示油松和侧柏苗木的高生长和分枝数明显优于一步到位法在退耕地建造的针叶苗木;且在75%覆盖率的灌丛中,油松苗单株抽条长度和单株抽条个数分别是退耕地油松苗木的2.31和2.24倍,生长状况最好。
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| 关 键 词： | 黄土丘陵沟壑区 LSD多重比较 分步恢复 |
| 文章编号： | 1005-3409（2006）02-0154-03 |
| 收稿时间： | 2005-09-20 |
| 修稿时间： | 2005-09-20 |
Reasearch on Stepwise Restoration of Vegetation in Yan''''an Reasearch Area |
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| SUN Qiang,XUE Zhi-de,ZHANG Li-ping. Reasearch on Stepwise Restoration of Vegetation in Yan''''an Reasearch Area[J]. Research of Soil and Water Conservation, 2006, 13(2): 154-156 |
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| Authors: | SUN Qiang XUE Zhi-de ZHANG Li-ping |
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| Affiliation: | College of Resources and Environment ,Northwest Sci-tech University of Agriculture and Forestry, Yangling ,Shaanaxi 712100, China |
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| Abstract: | Combined together with the time and the space sequence,the dynamic varietys and the succession of plant community in gullied rolling loess region were researched.The experiment showed that under the condition of not breaking existing plant,an afforested method by several steps in uncultivated fields was put forward in gullied rolling loess region of Yan'an.This method can reduce the damage of Gansu myospalax and increase the afforested success ratio. |
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| Keywords: | gullied rolling loess region LSD ecological restoration |
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