Qilian Mountain Area Small Watershed Ecological Landscape Construction And Tending Technology Research

In this paper, by constructing optimal combination of ecosystems, ecological tendingwhich is optimum of biological species, explore effective measures which is suitable forqilian mountain watershed ecological environment protection and sustainable development.Optimum combination ecosystem construction divides three types: forest landscapeecology, forest ecology and ecological protection forest. Ecological tending mainly choosenative species：Rheum tanguticum、Rheum officinale、Gentiana straminea and Haleniaelliptica which give priority to medicinal, Berberis diaphana、Iris lactea and Clematistangutica which have a certain value，carrying out ecology tending experiment. The mainfindings and conciusions of this research were summarized as follows.1. The survival rate of Picea crassifolia、Hippophae rhamnoides、Potentilla fruticosa、Syringa and other species which were planted in Ecological shelter forest, ecologicaleconomic forest and ecological landscape forest, Picea crassifolia which is the highestsurvival rate reached100%, the survival rate of Potentilla fruticosa reached76%~84%,Hippophae rhamnoides93～97%.2. The highest survival is Halenia elliptica, plant height of the highest is Haleniaelliptica, The longest root length is Clematis tangutica，the maximum number of the blade isHalenia elliptica，the highest germination rate is Halenia elliptica。3.Bening landscape ecological system，increase the function of biodiversity，optimizationof the vertical structure of community, built a stable biological community, at the same timeenhance the landscape heterogeneity and landscape diversity, maintain the stability of thelandscape.