| 联户规模对高寒草场质量的影响分析——以甘肃玛曲为例 |
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| 引用本文： | 韦惠兰,郭达. 联户规模对高寒草场质量的影响分析——以甘肃玛曲为例[J]. 草地学报, 2014, 22(6): 1147-1152. DOI: 10.11733/j.issn.1007-0435.2014.06.001 |
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| 作者姓名： | 韦惠兰 郭达 |
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| 作者单位： | 兰州大学经济学院, 甘肃 兰州 7340000 |
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| 基金项目： | 公益性行业(农业)科研专项经费项目“青藏高原社区天然草场草地保护与合理利用技术研究与示范” |
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| 摘 要： | 通过测定不同规模联户管理下草场的可食草盖度、牧草高度、草场鼠洞数量、毒杂草比例及地上生物量等衡量草场质量的指标,统计分析后得出相比较单户、小联户与大联户而言,中联户管理的草场具有更高的草场盖度、牧草高度及地上生物量(EVI值),具有更少的鼠洞数量及更低的毒杂草比例,即由中联户管理的草场其质量最高.在此基础上以经济学视角分析草场质量差异的人文因素,表明单户或小联户具有较强的管理因素制约及较弱的自然因素制约,大联户具有较强的自然因素制约及较弱的管理因素制约;这3种联户内成员均会由于制约不足而出现增加饲养量的情况,造成过载放牧,并最终降低草场质量.中联户在较强的管理因素及自然因素的共同制约下,其内部成员均无增加饲养量的动机,因此整个联户将不会或很少出现过载放牧的情况.
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| 关 键 词： | 草场 牧民 联户规模 草场质量 |
| 收稿时间： | 2014-02-01 |
Effects of Joint-Household Size on the Quality of Alpine Grassland:A Case Study in Maqu Country |
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| WEI Hui-lan,GUO Da. Effects of Joint-Household Size on the Quality of Alpine Grassland:A Case Study in Maqu Country[J]. Acta Agrestia Sinica, 2014, 22(6): 1147-1152. DOI: 10.11733/j.issn.1007-0435.2014.06.001 |
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| Authors: | WEI Hui-lan GUO Da |
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| Affiliation: | College of Economics, Lanzhou University, Lanzhou, Gansu Province 730000, China |
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| Abstract: | The coverage, height, mouse-hole number, overground biomass of rangeland and the proportion of noxious-miscellaneous grass were measured. The results of ANOVA and LSD showed that the pasture managed by the medium scale of joint-household had higher coverage, height and overground biomass, lower mouse-hole number and the proportion of noxious-miscellaneous grass. In other words, the pastures managed by the medium scale of joint-household had the best quality. Then some economic knowledge was used in order to analyze the effects of humanistic factors on grassland quality. These results indicated that the herders of single household, small joint-household scale, and large joint-household scale would increase their herds because of loosely natural and managerial factors. The quality of pasture decreased due to the overgrazing. The herds of medium joint-household scale would not increase their herds because of the strictly natural and managerial factors. Therefore, the pasture managed by medium joint-household scale has higher quality than others. |
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| Keywords: | Grassland Herdsman Scale of joint-household Pasture quality |
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