| 民勤沙井子地下水对荒漠植被演替的影响 |
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| 引用本文： | 向玫,要静,王具元.民勤沙井子地下水对荒漠植被演替的影响[J].防护林科技,2017(4). |
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| 作者姓名： | 向玫 要静 王具元 |
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| 作者单位： | 1. 白龙江林业管理局林业科学研究所,甘肃 兰州,730070;2. 甘肃林业职业技术学院,甘肃 天水,741020 |
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| 摘 要： | 基于对民勤沙井子地区不同时期植被调查数据,研究了不同群落自然植被在地下水影响下的植被演替过程,结果表明:自20世纪80年代中期以后,沙井子地区地下水位和水矿化度不断下降,地下水位由1988年的9m降至2015年的24.62m;水矿化度由1963年的2.93g·L~(-1)降至2015年的0.78g·L~(-1);随着地下水位的下降,植被向旱生方向演替;水矿化度高低直接影响植被的种类。
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| 关 键 词： | 地下水 荒漠植被 演替 |
Effects of Groundwater in Shajingzi Region of Minqin Lake Area on Vegetation Succession of Desert |
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| Xiang Mei,Yao Jing,Wang Juyuan.Effects of Groundwater in Shajingzi Region of Minqin Lake Area on Vegetation Succession of Desert[J].Protection Forest Science and Technology,2017(4). |
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| Authors: | Xiang Mei Yao Jing Wang Juyuan |
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| Abstract: | Based on the vegetation survey data in different periods in Shajingzi Area of Minqin Lake Area,the vegetation succession of natural vegetation of different population under the influence of groundwater was studied.Result shows that since the middle of the 1980s,the groundwater level and mineralization degree of water in Shajingzi Region decrease continuously;the water level decrease from 9 m in 1988 to 24.62 m in 2015.The degree of water salinity decrease from 2.93 g · L-1 in 1963 to 0.78 g · L-1 in 2015.With the decline of groundwater level,the vegetation to the direction of succession occurred;water mineralization level directly affect the type of vegetation. |
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| Keywords: | groundwater desert vegetation succession |
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