Ecological Effects of Farmland Shelterbelt System in Jingdian Irrigated Area

FENG Yiming; WANG Hui

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Ecological Effects of Farmland Shelterbelt System in Jingdian Irrigated Area

- Ecological Effects of Farmland Shelterbelt System in Jingdian Irrigated Area
- Bulletin of Soiland Water Conservation Vol. 29, Issue 5, Pages: 79-83(2010)
- 作者机构：
  
  甘肃农业大学林学系,甘肃,兰州,730070
- 作者简介：
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- Published：2010
- 稿件说明：
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FENG Yiming, WANG Hui. Ecological Effects of Farmland Shelterbelt System in Jingdian Irrigated Area[J]. Bulletin of Soiland Water Conservation, 2010, 29(5): 79-83.
DOI：

FENG Yiming, WANG Hui. Ecological Effects of Farmland Shelterbelt System in Jingdian Irrigated Area[J]. Bulletin of Soiland Water Conservation, 2010, 29(5): 79-83. DOI：

摘要

通过对景电一、二期灌区农田防护林体系现状及防护、增产效应的定点调查与测定

对比分析了林带的生态效应和作用。结果表明

在林带迎、背风面0～6H处

其生态防护效应表现显著。而随着与林带距离的增加

其生态防护效应表现出递减趋势

并且其生态防护效应随林龄的增大而提高;在灌区内农田林网较为完善的地带

防护林保护下的小麦、玉米产量分别提高18.3%和13.7%;林网内农作物千粒重要比空旷区对照点的千粒重提高15%～18%左右

林带的农业增产效益明显。但在农田林网不健全的条件下

防护林的增产效果表现微弱。综合分析认为

该区域农田防护林体系的生态、经济效应都有待于进一步提高和完善。

Abstract

Through point-survey for farmland shelterbelt system situation

windbreak effect

and yield performance in Jingdian's first and second irrigation areas

the functions of the shelterbelt and its ecological effects were analyzed.Results indicated that eco-protection effect was displayed remarkably in the shelterbelt's two side of the 0~6H.With the distance from the shelterbelt increasing

eco-protection efficiency weakened gradually.Eco-protection effect was improved with the increase in stand age.In the perfect area of forest network

agricultural production benefits were significant and wheat yield and maize yield were 18.3% and 13.7% more than those in control area.Thousand kernel weight in the forest network area increased by 15%～18%.However

the effect of yield-increasing by shelterbelt was reduced in unsound forest network.Results from the comprehensive analysis show that economic and ecological effects of farmland shelterbelt in the area should be further improved.

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