文献类型：期刊文献

中文题名：干旱区人工绿洲不同农田防护林模式防护效应及相关性

英文题名：Sheltering Effects of Farmland Protective Forest and Their Relationships in Artificial Oasis of Arid Region

作者：王葆芳[1] 赵英铭[2] 王志刚[2] 江泽平[1] 杨晓晖[1]

第一作者：王葆芳

机构：[1]中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京100091;[2]中国林业科学研究院沙漠林业实验中心,内蒙古磴口015200

年份：2008

卷号：21

期号：5

起止页码：707-712

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：“十五”国家科技攻关重大项目(2002BA517A09-02)资助内容

语种：中文

中文关键词：干旱地区;农田防护林模式;防护效应;防护成熟期

外文关键词：arid region; farmland protective forest pattern; sheltering effects; optimum sheltering period

分类号：S727.2

摘要：对乌兰布和人工绿洲11条不同配置结构农田防护林带的防护效应进行了研究,结果表明:(1)在同等条件下,窄冠型杨树林带的疏透度均比宽冠型杨树的小,新疆杨较加拿大杨低0.23,箭杆杨较二白杨低0.30;但新疆杨的防风效能较加拿大杨高34.43%,箭杆杨较二白杨高26.46%。宽林带(32m)的防护作用强于窄林带(4m),其农田防护率可提高16.55%～54.41%,胁地指数降低0.03～0.22,农作物减产率下降27.5%。(2)小网格灌木防护林的农田防护率、胁地指数和农作物减产率均好于乔木,农田防护率较乔木提高8.00%～13.93%,胁地指数降低0.04～0.05,减产率下降0.8%～49.4%;防风效能提高1.08%～6.3%。(3)乔木混交林的防护效应好于乔木纯林,其中,农田防护率较纯林提高43.8%,胁地指数降低0.27,农作物减产率降低57.5%。(4)新疆杨栽植9a后即可进入最佳有效防护成熟期,有效防护成熟期在10～27a。(5)林带配置方式即株行距、行数、林带宽度与林带疏透度显著正相关(R=0.661*、0.707*、0.688*)。(6)林带防护距离随林龄增加而增加,林龄与林带间距呈显著正相关,即林带的工艺成熟龄和防护期是确定林带间距的重要依据。
This paper is studied the shelterbelt effects of 11 farmland protective forests with different structures in artificial oasis of Ulan Buh Desert, the results showed that （ 1 ） with the same structure features （age, density, row number, belt width, inter-belt distance, etc. ）, the porosity of narrow-crown poplar trees was lower than that of wide-crown poplar trees, that of Populus bolleana was 0.23 lower than that of Populus canadensis, that of Populus nigra L. var thevestina （Dode） Bean was 0. 30 lower than that of Populus nigra L. var thevestina × P. simonii , the windbreak rates（WR） increased by 34.43% and 26.46% , compared to those of narrow shelterbelt. The farmland sheltering rate（FSR） of wide shelterbelt （32 m） increased by 16.55%-54.41%, and land competitive index （LCI） and crop yield reduction rate（CYRR） of wide shelterbeh （32 m） decreased by 0. 03-0. 22 and 27.5%respectively; （2） compared to those of high trees, the FSR and WR of small-network shrub belt increased by 8.00%-13.93% and 1.08%-6.30%, LCI and CYRR of small-network shrub belt decreased by 0.01-0.05 and 0. 8%-49. 4% respectively; （3） compared to those of pure forest, the FSR of mixed forest increased by 43.8% , ECI and CYRR of mixed forest decreased by 0.27 and 57.5%; （4） 9 years after planting, Populus bolleana came to its optimum sheltering age, the optimum sheltering age period is 10-27 age; （5） shelterbelt density, row number and belt width had significantly positive relations to shelterbelt porosity （ R = 0.661,0. 707 and 0. 688） ; （6） inter-belt distance had significantly positive relations to tree （shrub） age.