甘南州传统经济模式对现代经济发展的制约及调整思路

分析了对高寒牧区具有代表性的甘南藏族自治州传统经济模式给现代经济发展带来的制约，构想了一种全新的适合当地现代经济发展的新型生态产业结构链，期望对高寒牧区经济的可持续发展起一定的指导作用。     

福建省中山湿地管理调查报告

调查研究了福建省中山湿地管理的现状,分析了中山湿地管理的难点及其原因,提出了中山湿地管理的建议与对策。     

湿地农田“三沟”配套排水整体功能研究

研究表明,湿地农田采取开三沟(主沟、支沟和厢沟)配套排水,能加速排除田间渍水,降低地下水位,改善土壤通透性,增加土壤养分,促进水稻生长发育,增加稻谷产量,充分发挥排水治溃整体功能。     

三江平原独木河流域大塔山湿地的环境功能初探

湿地是地球上独特的生态系统 ,是自然界最丰富的生态景观和人类最重要的生存环境之一 ,对带动区域经济的可持续发展也具有非常重要的意义。大塔山湿地保护区内动植物资源及水资源非常丰富 ,具有极高的生物多样性和景观价值 ,对防止自然灾害、降解污染、观光旅游和教育科研等具有特殊的作用     

黔西高寒山区绿肥聚垄免耕玉米优化栽培试验研究

黔西高寒山区绿肥聚垄免耕玉米优化栽培试验研究李明祥（贵州省六盘水市水保办５５３００１）王新黔（贵州省六盘水市农牧局）近年来，我市各重点防治小流域引进横坡绿肥聚垄免耕技术后，收到了明显的增产效益和水土保持效益，但如何优化配置玉米品种、种植密度、施氮水平...     

发展以燕麦为支柱产业的可持续高寒草地畜牧业

针对我国青藏高寒草地畜牧业的生产现状,探讨了青藏高原高寒牧区燕麦Avena sativa品种繁育、人工草地建植和草产品加工以及以舍饲为主放牧为辅的新型集约化草地畜牧业生产模式的建立,为发展以燕麦为支柱产业的可持续高寒草地畜牧业提供理论依据.     

青海环湖高寒草地黄花棘豆锈病的初步研究

对青海环湖高寒草地黄花棘豆Oxytropis ochrocephala锈病的发病率、病害症状及其对黄花棘豆生长特性(株高、分枝数和花头数)的影响进行了初步调查。结果表明,侵染黄花棘豆的病原为拉伯兰单胞锈菌Uromyces lapponicus,该锈病菌无夏孢子阶段。山顶黄花棘豆具较高株丛枯死率,山底则具较高株丛发病率和锈病感染率。感染锈病的黄花棘豆植株生长受到抑制,分枝数减少,不能开花结荚,甚至整株枯死。     

甘肃天祝地区地膜覆盖栽培饲用甜菜饲用价值的评定

对甘肃天祝地区地膜覆盖栽培饲用甜菜Beta vulgaris营养成分、含糖率及适口性和瘤胃消失率进行了测定.结果表明:饲用甜菜粗蛋白含量块根为11.39%,茎叶为17.36%;含糖率达10%左右;在有青草的条件下,饲用甜菜采食率小于燕麦Avea fatua,但有稳定的适口性,适合于冬春无青草时饲喂.饲用甜菜在藏羊瘤胃内的消失率茎叶为88%,块根为90%.     

黄河源区高寒草地沙化进程中土壤物理性质的变化(简报)——以玛曲为例

以玛曲县高寒草地为研究对象,采用空间序列代替时间序列的研究方法,对该区不同沙化程度草地的土壤物理性质变化进行分析研究。结果表明,在高寒草地沙化进程中,存在着土壤机械组成不断变粗、土壤容重不同程度增加而孔隙度相应减小的变化趋势。在0~20cm层,植被盖度<50%的中度沙化草地和植被盖度<10%的极重度沙化草地与植被盖度>80%的天然草地相比,土壤中砂粒含量分别提高10.7%和15.2%,土壤容重分别增加9.3%和12.4%,土壤孔隙度分别减小10.4%和13.9%;随沙化程度的加剧,对土壤物理性质的影响层次也有所加深。     

Effects of plateau pika on the relationship between plant species diversity and functional diversity in alpine meadow北大核心CSCD

The relationship between plant species diversity and functional diversity in grassland will change with environmental changes. The plateau pika （Ochotona curzoniae） has an effect on the hydrothermal process of alpine meadow in its nesting area. However,it is not clear whether the disturbance of plateau pika effects the relationship between plant species diversity and functional diversity in alpine meadow. A random stratified and paired design was used to select plots in Luqu county in Gansu Province,and Qilian and Gonghe Counties in Qinghai Province and a field survey was conducted to investigate the effects of plateau pika disturbance on the relationship between plant species diversity and functional diversity of the alpine meadow. It was found that plateau pika disturbance significantly increased the plant species richness index and the species diversity index but did not significantly affect the species evenness index. Plateau pika disturbance significantly increased plant functional richness index （P< 0.05） but had no significant effect on the plant functional evenness index or the functional divergence index. With plateau pika disturbance effects,the relationship between plant functional richness index and species richness index changed from a logarithmic function to a quadratic function,and the relationship between plant functional evenness index and species evenness index changed from non-significant to significantly positive. In addition, positive correlations between functional richness index and species richness index,and functional richness index and species diversity index were significantly decreased,as were negative correlations between functional divergence index and species richness index,and functional divergence index and species diversity index were significantly decreased. The findings of this study provide basic information for understanding the mechanism of species coexistence of plant communities under plateau pika disturbance and help understanding of how plant diversity effects in an alpine meadow ecosystem function under plateau pika disturbance. © 2022 Editorial Office of Acta Prataculturae Sinica. All rights reserved.