石漠化地区不同豆科牧草品种与经济幼林共生性研究  

Research on symbiotic relationship between different legume forages and economic young trees in Karst region

作　　者：段新慧[1] 周自玮[1] 

机构地区：[1]云南省肉牛和牧草研究中心,昆明小哨650212

出　　处：《草业科学》2007年第1期41-43,共3页Pratacultural Science

基　　金：云南省"十五"科技攻关项目"滇东南岩溶地区石漠化综合治理试验示范"(2001NG54)

摘　　要：对不同牧草品种与石漠化典型地区主要造林树种的共生关系进行了研究。结果表明,豆科紫花苜蓿Medicago sativa与墨西哥柏Cupressus lusianica、苦刺Acacia mearnsii,红三叶Trifolium pratense与川滇桤木Alnus ferdinandi-coburgii在前3年共生性良好,紫花苜蓿不适于重度放牧,只能刈割饲喂。大百脉根Lotus uliginosus与花椒Zanthoxylum bungeanum在第1年可以共生,以后双方形成竞争,牧草的生长影响了花椒树的生长,共生性差。任豆Zenia insignis、黑荆Acacia mearnsii、海法白三叶T.pratensecv.haifa生性良好,是石漠化典型地区林草配置的优化组合。林草结合最大的优点是在经济林木成材前就可在植树地间获取经济效益,植树地的产出至少提前了3年。The experiment of mixed growth of legume forages and economic young trees were conducted in Karst region in Yunnan. The results showed that the symbiosis of alfalfa （Medico sativa） and Cupressus lusianica, Acacia mearnsii was very good. The intergrowth of red clover （Trifolium pratense） and Alnus ferdinandi-coburgii benefited each other during first 3 years. But alfalfa was not available for grazing and could only be cut and carrying to feed animal. The symbiosis between big trefoil （Lotus uliginosus） and Zanthoxylum bungeanum was good in the first year. However, they had negative effect on each other afterwards. Symbiosis of white clover （T. pratense） and Zenia insignis, Acacia mearnsii was excellent, which was the best combination in the Karst region. The advantage of mixed-growing young trees and legumes is that it can get economic benefit from planting area before the trees growing up.

关 键 词：石漠化地区 共生 豆科牧草 经济幼林 

分 类 号：S54[农业科学—作物学] S718.5