放牧对松嫩平原农牧交错区防护林下草地的影响

应用生态学报 ›› 2004, Vol. ›› Issue (5): 795-798.

放牧对松嫩平原农牧交错区防护林下草地的影响

何念鹏¹, 吴泠¹, 周道玮²

收稿日期:2002-10-16 修回日期:2003-11-21
通讯作者: 周道玮
基金资助:
国家重点基础研究发展规化资助项目(2000018602)

Effect of grazing on grassland under protective plantation in the ecotone between agriculture and animal husbandry of Songnen plain

HE Nianpeng¹, WU Ling¹, Zhou Daowei ²

1. Laboratory of Quantitative Vegetation Ecology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China;
2. Key Laboratory for Vegetation Ecology, Ministry of Education, Institute of Grassland Science of Northeast Normal University, Changchun 130024, China

Received:2002-10-16 Revised:2003-11-21

摘要/Abstract

摘要： 针对当前防护林草地已成为松嫩平原农牧交错区牲畜主要放牧场的实际情况,分析了不同放牧强度对防护林草地的影响.结果表明,未放牧防护林草地严重退化,与极度放牧防护林草地最为相似.未放牧和极度放牧均抑制了防护林草地的生长,轻度放牧和中度放牧却促进了防护林草地的生长,草地产量和质量均明显提高,并合理地利用了杨树叶资源.未放牧防护林草地质量指数仅为15.51,属严重退化草地范畴;轻度放牧草地质量指数为86.4,随着放牧强度的增加,草地质量逐渐下降.因此,应提倡轻度放牧、中度放牧,防止未放牧和极度放牧现象出现,促进防护林草地生长,并充分利用杨树叶资源增加畜牧业牧草的来源.

关键词: 农牧交错, 防护林草地, 放牧强度, 草地质量

Abstract: Based on the current special position that grassland under protective plantation is one of the most important grazing spaces of the ecotone between agriculture and animal husbandry in Songnen plain,an experiment was conducted to investigate the effect of grazing on grassland under protective plantation.The results showed that no-grazing grassland in the grassland under protective plantation was seriously degenerated,but light and moderate grazing could stimulate the growth of grass and the product and quality of grassland.The index of grassland quality(IGQ) of no-grazing grassland was the lowest(15.51),attributing to serious degradation,while that of light grazing grassland was the highest(86.41),and the IGQ was decreased with increasing grazing intensity.Therefore,in order to stimulate the grass growth of the grassland,fully utilize the leaves of poplar,and increase the available forage resources,light and moderate grazing intensity should be advocated,but no-grazing and extreme grazing should be avoided.

Key words: Ecotone between agriculture and animal husbandry, Grassland under protective plantation, Grazing intensity, Grassland quality

中图分类号:

Q948.1

何念鹏, 吴泠, 周道玮. 放牧对松嫩平原农牧交错区防护林下草地的影响[J]. 应用生态学报, 2004, (5): 795-798.

HE Nianpeng, WU Ling, Zhou Daowei . Effect of grazing on grassland under protective plantation in the ecotone between agriculture and animal husbandry of Songnen plain[J]. Chinese Journal of Applied Ecology, 2004, (5): 795-798.

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