当前位置: 首页 > 文章 > 荒漠草原不同放牧强度下长芒草种群补偿性生长的研究 农业科学研究 2008,29 (2) 54-57
Position: Home > Articles > Study on community growth of Stipa bungeana population under different grazing intensities in desert steppe Journal of Agricultural Sciences 2008,29 (2) 54-57

荒漠草原不同放牧强度下长芒草种群补偿性生长的研究

作  者:
刘王锁;谢应忠;代红军;饶德
单  位:
宁夏大学草业科学研究所
关键词:
补偿性生长;长芒草;净初级生长量;放牧强度;荒漠草原
摘  要:
在宁夏盐池县四墩子荒漠草原,比较研究了不同放牧强度下长芒草种群地上净初级生长量及家畜采食率的变化,并进行相关回归分析.结果表明,在适度放牧条件下,长芒草种群具有补偿、超补偿性生长,而在重度放牧条件下,长芒草种群表现为欠补偿生长.
译  名:
Study on community growth of Stipa bungeana population under different grazing intensities in desert steppe
作  者:
Liu Wangsuo,Xie Yingzhong,Dai Hongjun,Rao De(Institute of Pratacultural Science,Ningxia University,Yinchuan 750021,China)
关键词:
compensatory growth;Stipa bungeana;net primary production;grazing intensity;desert steppe
摘  要:
The effects of different grazing intensities on above-ground net primary production and intake rates change of Stipa bungenan population were studlied in desert steppe on Sidunzi,Yanchi county of Ningxia.The correlative regression between net primary production and intake rates under grazing intensities were also analyzed.The results showed that S.bungeana population appeareed as compensatory or over-compensatory growth under the moderate grazing.But it indicated under-compensation for community under heavy grazing intensities.

相似文章

计量
文章访问数: 9
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊