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| 辽西地区小叶锦鸡饲料防护林生物量动态及粗蛋白含量变化 | |
| 引用本文： | 郑英达,李建贵,刘明国,郑庆山,李云斌,杨桂芹.辽西地区小叶锦鸡饲料防护林生物量动态及粗蛋白含量变化[J].辽宁林业科技,2010(4):16-19. |
| 作者姓名： | 郑英达 李建贵 刘明国 郑庆山 李云斌 杨桂芹 |
| 作者单位： | 1. 新疆农业大学,林学与同艺学院,新疆,乌鲁木齐,830052 2. 沈阳农业大学,辽宁,沈阳,110161 3. 阜蒙县林果局,辽宁,阜新,123100 4. 北京师范大学,北京,100875 |
| 基金项目： | "十一五"辽宁省科技攻关项，国家农业产业技术体系项目 |
| 摘 要： | 小叶锦鸡是辽西地区优良的饲料防护林树种，该文对其生物量动态和粗蛋白含量变化进行了研究，旨在为小叶锦鸡饲料防护林经营措施的制定提供理论依据。结果表明：在辽西地区，山地阳坡林草间作模式的生物量和粗蛋白含量最高，平地林粮间作模式次之，山地阴坡林草模式最低；平茬后2年生小叶锦鸡可食部分生物量最大，平茬周期以2年为宜；生物量年生长动态总体呈增大趋势，9月份出现最大值，粗蛋白的年变化总体是下降趋势，最高值出现在5月份。可食部分生物量的粗蛋白总量最大值出现在6月份，此时饲料产量最高。 |
| 关 键 词： | 小叶锦鸡 经营模式 生物量 粗蛋白 |
Dynamics of biomass and changes of crude protein contents in fodder protective forests of Caragana microphylla in western Liaoning |
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| ZHENG Ying-da,LI Jian-gu,LIU Ming-guo,ZHENG Qing-shan,LI Yun-bin,YANG Gui-qin.Dynamics of biomass and changes of crude protein contents in fodder protective forests of Caragana microphylla in western Liaoning[J].Liaoning Forestry Science and Technology,2010(4):16-19. | |
| Authors: | ZHENG Ying-da LI Jian-gu LIU Ming-guo ZHENG Qing-shan LI Yun-bin YANG Gui-qin |
| Institution: | 1.College of Forestry and Horticulture, Xinjiang Agricultural University, Urumqi 830052,China; 2.Shenyang Agricultural University, Shenyang 110161,China; 3. Bureau of Forstry and Fruit Trees of Fuxin Mongolian Autonomus Country, Fuxin 123100,China; 4.Beijing Normal University, Beijing 100875,China) |
| Abstract: | Caragana microphylla is a superior tree species for fodder protective forest in western Liaoning. In this paper, dynamics of biomass and changes of crude protein contents of Caragana microphylla were studied to provide theoretical basis for formulating management measures of fodder protective forests. The results showed that： in westem Liaoning, biomass and contents of crude proteins for forest-grass intercropping models on sunny slopes on hills were highest, lower for forest-grain intercmpping models on fiat lands, and lowest for forest-grass intercropping models on shady slopes on hills. Biomass of the edible parts of Caragana microphylla was highest after stumped for 2 years, the suitable period for stumping was 2 years. The annual growing dynamics of biomass tended to increase generally, the maximum value was in September;, the annual changes of crude proteins tended to decrease generally, the maximum value was in May. The maximum value of total crude proteins regarding biomass of the edible parts was in June, yield of fodder was highest at that time. |
| Keywords: | Caragana microphylla management model biomass crude protein |
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