| 甘肃民勤荒漠区植物物候相的持续特征和组合特征 |
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| 引用本文： | 常兆丰,韩福贵,仲生年.甘肃民勤荒漠区植物物候相的持续特征和组合特征[J].林业科学,2011,47(10). |
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| 作者姓名： | 常兆丰 韩福贵 仲生年 |
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| 作者单位： | 甘肃民勤荒漠草地生态系统国家野外观测研究站 民勤733300;甘肃省荒漠化防治重点实验室 兰州730070;甘肃省治沙研究所 兰州730070 |
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| 基金项目： | 甘肃省自然科学基金项目(1010RJZA133); 国家自然科学地区科学基金项目(30960321) |
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| 摘 要： | 以民勤荒漠区1974年以来的36种植物的物候观测资料,运用物候频数的统计方法,划分5个物候相,分析物候相的持续特征和组合特征。结果表明:植物的活动期物候相持续日数平均为212天,绿色期物候相持续日数较长,花色期物候相持续日数最短;花色期、挂果期和绿色期3个物候相不同植物之间相互重叠;旱柳的活动期物候相最长,火炬树和芦苇的活动期物候相最短,胡杨和火炬树的绿色期物候相最短,芦苇的秋色期物候相最短;荒漠区不同植物的花色期以及挂果期差异很大。在花色期物候相中,开花始期较早的植物开花末期也相对较早。
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| 关 键 词： | 植物物候 物候相 持续特征 组合特征 民勤荒漠区 |
Sustained Characteristics and Combination Characteristics on Phenophase of Plants in Minqin Desert Region |
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| Chang Zhaofeng,Han Fugui,Zhong Shengnian.Sustained Characteristics and Combination Characteristics on Phenophase of Plants in Minqin Desert Region[J].Scientia Silvae Sinicae,2011,47(10). |
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| Authors: | Chang Zhaofeng Han Fugui Zhong Shengnian |
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| Institution: | Chang Zhaofeng 1,2,3 Han Fugui1,3 Zhong Shengnian1,3(1.Minqin National Station for Desert Steppe Ecosystem Studies Minqin 733000,2.Gansu Key Laboratory of Desertification Combating Lanzhou 730070,3.Gansu Desert Control Research Institute Lanzhou 730070) |
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| Abstract: | Phenophase of plants is crucial to forecast a variety of seasonal weather events(such as dust storms,strong winds),and determine seasonal grazing and the building of sand-fixing vegetation in the desert region.Five Phenophases were divided based on observed phenology data of 36 plant species since 1974 in Minqin desert region with frequency statistical method of phenology.Sustained characteristics and combination characteristics of the phenophases were analyzed.The results showed that:Phenophase of plant ac... |
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| Keywords: | plant phenology phenophase sustained characteristics combination characteristics Minqin desert region |
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