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- W3041090146 abstract "Field surveys set standard measurement indicators, use principal component analysis to screen indicators, determine weights, construct evaluation models, and use cluster analysis to classify Durian larch forest health grades. Three types of Ledum-Larixgmelinii forest in the clearcut forest were studied for health evaluation. The results of the study show that: forest stand productivity, soil nutrients, organizational structure, resistance, and resilience have identified 19 indicators that are more important for the health of Duxiang-Xing'an larch forest. A forest health assessment index system of Ledum-Larixgmelinii forest was established. The principal component analysis method was used to select comprehensive indexes such as comprehensiveness, resilience, plant diseases, and insect pests, plant species diversity, fire disturbance degree, structural rationality, soil nutrients and natural disturbance, as the evaluation indicators of Ledum-Larixgmelinii larch forest. Although the overall health status of the Ledum-Larixgmelinii forest is generally good, there are still areas of forest with health problems. Through analysis, the primary forest has the highest health index and the best health status. It can be seen that the forest grown in the original state has a stable structure, high vitality, strong resistance, and strong sustainability. The health level of the declining forest is second only to that of the primary forest. In clearing forests, there are two kinds of clearing forests in the study area. Among them, 2/3 of the forest are poor, and 1/3 of the forest are in the middle, but the health of the clear cutting forest is the lowest overall." @default.
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- W3041090146 date "2020-07-08" @default.
- W3041090146 modified "2023-10-16" @default.
- W3041090146 title "Study on Eco-health Evaluation of Ledum-Larixgmelinii Forest in Cold Temperate Zone" @default.
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- W3041090146 doi "https://doi.org/10.1088/1755-1315/526/1/012051" @default.
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