| 不同措施下三江源区“黑土山”土壤治理效果分析 |
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| 引用本文： | 吴建丽,施建军,王晓丽,赵之重,王彦龙,王海波,贺有龙,李思瑶.不同措施下三江源区“黑土山”土壤治理效果分析[J].草地学报,2023,31(1):220-229. |
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| 作者姓名： | 吴建丽 施建军 王晓丽 赵之重 王彦龙 王海波 贺有龙 李思瑶 |
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| 作者单位： | 1. 青海大学畜牧兽医科学院/青海省畜牧兽医科学院, 青海 西宁 810016;2. 青海民族大学, 青海 西宁 810007;3. 青海省果洛州草原工作站, 青海 果洛 8140003 |
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| 基金项目： | 青海省高端创新人才千人计划培养人才项目(k992032)；其他20-畜产品供需格局演变与畜牧业转型发展(302108)；2019年度青海三江源生态保护和建设二期工程科研和推广项目-课题5(2019-S-1)资助 |
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| 摘 要： | 相对于“黑土滩”的研究，“黑土山”的研究尚处于初期。本研究以6种措施“微耕机翻耕一遍+人工撒播(MT1+MS)、微耕机翻耕两遍+人工撒播(MT2+MS)、旋耕机翻耕+撒播机播种(RT+SS)、挖掘机开沟+人工条播(ED+MS)、免耕播种(NT+S)、人工耙翻+人工撒播(MR+MS)”治理后的草地为研究对象，分析土壤的理化特征和微生物量的变化，以及6种措施对土壤的治理效果，为“黑土山”土壤快速治理提供理论依据。结果表明：土壤含水量、有机碳、全氮、全磷、微生物量碳氮磷含量随土层均呈下降趋势，并且0～20 cm土层土壤含水量和各土层土壤养分含量均在措施NT+S时最高；各土层的容重在措施ED+MS最大，且差异显著(P<0.05);0～10 cm土层，土壤水稳性团聚体质量百分数在措施NT+S最高且差异显著(P<0.05),10～20 cm、20～30 cm土层中各措施下差异不显著。因此，结合土壤理化性质和微生物量的变化，三江源区“黑土山”土壤的快速治理可选择免耕播种的措施。
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| 关 键 词： | 三江源区 “黑土山” 土壤 治理措施 |
| 收稿时间： | 2022-05-15 |
Analysis of Soil Management Effect of Different Measures on “Bare Land of Mountain” in the Three Rivers Source Region |
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| WU Jian-li,SHI Jian-jun,WANG Xiao-li,ZHAO Zhi-zhong,WANG Yan-long,WANG Hai-bo,HE You-long,LI Si-yao.Analysis of Soil Management Effect of Different Measures on “Bare Land of Mountain” in the Three Rivers Source Region[J].Acta Agrestia Sinica,2023,31(1):220-229. |
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| Authors: | WU Jian-li SHI Jian-jun WANG Xiao-li ZHAO Zhi-zhong WANG Yan-long WANG Hai-bo HE You-long LI Si-yao |
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| Institution: | 1. Academy of Animal Science and Veterinary Science/Qinghai Academy of Animal Science and Veterinary Science, Qinghai University, Xining， Qinghai Province 810016, China;2. Qinghai University for Nationalities, Xining, Qinghai Province 810007, China;3. Guoluo Grassland Working Station of Qinghai Province, Guoluo, Qinghai Province 8140003, China |
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| Abstract: | Compared with the research on the control of " black soil beach",the research on the control of " bare land of mountain " is still in the early stage. Taking the grassland treated by six measures,micro tiller plowing+manual sowing (MT1+MS),micro-tiller plowing twice+manual sowing (MT2+MS),rotary tiller ploughing +seeder sowing (RT+SS),excavator ditching +manual sowing (ED+MS),no-till sowing (NT+ S),and manual raking+manual sowing (MR+MS),as the research object,the effects of six treatments on soil restoration were analyzed,which would provide theoretical basis for rapid soil treatment in " bare land of mountain " by studying the changes of soil physical and chemical characteristics and microbial biomass. The results showed that the contents of soil water,organic carbon,total nitrogen,total phosphorus,microbial biomass carbon,nitrogen,and phosphorus all exhibited a downward trend with the soil layer. And the soil water content in 0-20 cm soil layer and the soil nutrient content in each soil layer were the highest in the measure NT+S;The bulk density of each soil layer was the largest in ED+MS,and the difference was significant (P< 0.05). The mass percentage of soil water-stable aggregates in 0-10 cm soil layer is the highest in NT+S,and the difference was significant (P<0.05),but there was no significant difference in 10-20 cm and 20-30 cm soil layers. Therefore,combined with the changes of soil physical and chemical properties and microbial biomass,no-till sowing can be selected for the rapid soil management of " bare land of mountain " in the source region of the Three Rivers. |
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| Keywords: | The source area of the Three Rivers “Bare land of mountain” Soil Treatment measures |
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