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留茬高度对骆驼刺生长发育和产草量的影响/Effects of Stubble Height on Aboveground Growth and Yield of Alhagi sparsifolia[J]
Authors
HUANG Cai-bian
LEI Jia-qiang
+6 more
ZENG Fan-jiang
中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011
新疆策勒荒漠草地生态系统国家野外科学观测研究站,新疆策勒848300
曾凡江
雷加强
黄彩变
Publication date
1 January 2011
Publisher
Abstract
通过分析留茬高度对单株和不同分布密度的骆驼刺(Alhagi sparsi folia)灌丛地上部生长动态的影响,初步探讨了骆驼刺在极端环境条件下的合理刈割方式.结果表明:齐地面刈割后株高、冠幅及地上部鲜重在不同月份均高于留茬-5 cm,尤其在地表基本裸露的5月.此外,齐地面刈割使骆驼刺新生枝条的萌动生长时间提前,对其再生性能有明显促进作用.留茬高度对骆驼刺产草量的影响因灌丛分布密度而异,密度在0.44~46和0.36~0.38株·m-2时以齐地面以下5 cm刈割时产草量较高,在0.41~0.42和0.33~0.34株·m-2时以齐地面刈割时较高.此外,骆驼刺的生长季(5-9月)和起沙风的频发期相耦合,因此兼顾骆驼刺的经济效益和生态效益,推荐在9月份以后对骆驼刺进行齐地面刈割
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Last time updated on 29/11/2016