Health Diagnosis and Evaluation of Farmland Protective Forests in Typical Oasis of Xinjiang——Taking Aksu Protective Forest as an Example
In this study,the health status of typical oasis farmland protective forests was diagnosed and evaluated by taking Aksu City protective forest as an example.The sample plots were laid out by using the sample line method and sample strip method to investigate the species composition,biomass,age structure and causes of degradation.The results of the study showed that the protective forest system in Aksu City was relatively sound and the integrity of the forest network was high,but there were still some problems,which were mainly reflected in the uneven distri-bution of annual protective forest afforestation tasks,the significant irrationality of the spatial distribution,the signif-icant differences in the growth status of farmland protective forests under different soil conditions,and the single se-lection of tree species,and so on.