带状柠条人工林对带间植被特征的影响

THE EFFECTS THAT ZOSTER PEASHRUB PLANTATIONS HAVE ON THE CHARACTERISTIC OF INTERSUBBAND VEGETATION

本文以察右后旗半干旱地区4m、8m带间距柠条人工林带间植被为研究对象,在典型样地内采取样方法对带间植被特征进行调查。结果表明:与ck比较,营造带状柠条林后带间植被特征明显改善,植物分别增加了4科6属7种(4m)、4科7属7种(8m),重要值由藜科植物占绝对优势演变为禾本科植物占绝对优势;多年生草本植物分别增加了7种(4m)和5种(8m),半灌木增加了1种(4m)和2种(8m);牧草性质改善,优等牧草增加了2种(4m)和3种(8m),重要值均值较大。

The paper studys the intersubband vegetation in semiarid regions in Chayouhouqi with peashrub（Caragana）plantation spacing of 4 meters and 8 meters and survey the characteristic of it using the method of sampling in typical sample plots.The result shows ： Compared with the ck,the characteristic of intersubband vegetation improved obviously after creating Zoster Peashrub plantation,the plants increased by 7 species 6 genus 4 families（4m）、7 species 7 genus 4 families（8m）,the important value of plants changed from the dominant Chenopodiaceae plants to the Gramineae,perennial herbaceous plants increased by 7 species（4m）、5 species（8m） and an increase of semi-shrub 1 species（4m）、2 species（8m）,the nature of forage improved and the High-quality forage increased by 2 species（4m）、3 species（8m）,the average important value is larger than ck.