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| 青海湟源县山坡梯田退耕还林还草效果研究 | |
| 引用本文： | 王宝山,简成功,屈海林,张小华.青海湟源县山坡梯田退耕还林还草效果研究[J].草原与草坪,2008(4):73-76. |
| 作者姓名： | 王宝山 简成功 屈海林 张小华 |
| 作者单位： | 1. 青海畜牧兽医职业技术学院,青海,湟源,812100 2. 湟源县水务局水保站,青海湟源,812100 3. 青海省草原总站,青海,西宁,810000 |
| 基金项目： | 青海省湟源县生态环境建设二期项目 |
| 摘 要： | 通过对湟源地区阴坡梯田退耕还林还草工程连续9年样区定点观测，结果表明，在梯田栽植的杨树到第9年100%死亡，榆树的成活率只有8%，沙棘的成活率为87．3%，柠条的成活率达100％，但长势不旺。在样区以撂荒自然恢复形成的草本群落生长旺盛，形成了以赖草为优势种，冰草为亚优势种的群落。恢复的第3—4年草本群落干物质产量达550-650g／m^2，到第8—9年达820-880g／m^2。 |
| 关 键 词： | 梯田 退耕还林 退耕还草 |
Effect of returning hill terraced fields for farming to forestry andgrass in Huangyuan County |
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| WANG Bao-shan,JIAN Cheng-gong,QU Hai-ling,ZHANG Xiao-hua.Effect of returning hill terraced fields for farming to forestry andgrass in Huangyuan County[J].Grassland and Turf,2008(4):73-76. | |
| Authors: | WANG Bao-shan JIAN Cheng-gong QU Hai-ling ZHANG Xiao-hua |
| Institution: | 1.Qinghai Animal Husbandry and Veterinary Technology College;Huangyuan 812100;China;2.River station of Huangyuan County;3.Grassland Station of Qinghai Province;Xining 811008;China |
| Abstract: | Effect of returning hill terraced fields for farming to forestry and grass were surveyed based on fixed point observation for nine years continuously.The results showed that death rate of Popular cathayana,Ulmus pumila and Hippophae rhamnoides was 100%,92% and 12.7% respectively in terraced fields.But in abandonment of arable land in study area,herbage community grew well,and the dominant species and sub-dominant species was Leymus secalinus and Agropvron cristatum respectively.Dry matter up to 550～650 g/m2 and 800 g/m2 after resumption for three to four years and eight to nine years respectively. |
| Keywords: | terraced fields returning land for farming to forestry returning land for farming to grass |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |