WANG Ping,ZHAO Hong-l iang,et al.Effect of the Preventing Measures on Farmland Sandy Desertification in Zhangwu[J].HEILONGJIANG AGRICULTURAL SCIENCES,2007,(01):34-37.[doi:10.11942/j.issn1002-2767.2007.01.0034]
彰武农田土壤沙化防治措施的效果研究
- Title:
- Effect of the Preventing Measures on Farmland Sandy Desertification in Zhangwu
- 文章编号:
- 1002 - 2767(2007)01 - 0034 - 04
- Keywords:
- farmland sandy dese rtifica tion ; prev enting measure ; Zhangw u
- 分类号:
- S157. 1
- 文献标志码:
- A
- 摘要:
- 从农、牧、林角度比较了防护林(A)、农林复合(B)和林牧复合(C)三种措施防治沙化的效果。试验结果显示:C 防护下的农田土壤机械组成最好, B 次之, A 最差;A 和B 防护的农田分别存在约4H 和2H 长的防护减弱区, C 防护的农田未出现明显的防护减弱区;土壤粗糙度比较结果表明C 最大, B 次之, A 最小;在相同的情况下, A 土壤风蚀量最大, B 次之, C 最小。综合分析说明三种防护措施中, 林牧复合型的防护效果最好, 其次是农林复合型措施, 防护林效果最差。
- Abstract:
- The farmla nd sandy dese rtifica tion pr eventing effec t w as compared :protectiv e fo rest (A), the farming and fore stry com pound (B) and the forest and pa sture compound (C). The results indicated that :The soil mechanical compo sition that unde r the pro tection of C were the be st , f ollow ed by B and A. The pro tective w eaken areas under the pro tec tion of A and B we re about 4H and 2H length , respec tively . The re was no obviously the same area under the pro tection of C. The r oughness results showed that the descending o rde r of the three measures w as C , B and A. While the same o rder o f soil wind ero sion quantity was just the opposite. In a w or d, the preventing effect of C w as the best , and B wa s better than that of A.
参考文献/References:
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[ 2] 哈斯. 河北坝上地区光源土壤风蚀物垂直分布的初步研究 [ J] . 中国沙漠, 1997 , 17(1):9-14.
[ 3] 朱朝云, 丁国栋, 杨明远. 风沙物理学[ M] . 北京:中国林业出版社, 1994.
[ 4] 路明. 防治沙尘暴和治理沙漠化土地的原理和方法[ M] . 北京:中国科学技术出版社, 2004.
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备注/Memo
收稿日期:2006 - 10 - 11
基金项目:农业部彰武农牧交错带生态农业建设示范项目
第一作者简介:王萍(1980 -), 女, 山东寿光人, 硕士, 从事科技信息研究。E - mail:emperer3 @126. com 。