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宁夏黄河护岸林的规划与建设
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作者 张源润 于卫平 +3 位作者 张浩 马学军 白永强 马晖 《防护林科技》 2004年第4期72-72,75,共2页
黄河流经宁夏 397km ,11个县市 ,宁夏在 2 0 0 0年以前已建设黄河护岸林 0 .4 5万hm2 ;提出了黄河护岸林的规划原则、建设目标 ,规划造林面积 16 .9万hm2 ;对堤坝防护林、河滩防扩林、农田防护林。
关键词 宁夏 黄河护岸林 规划设计 造林技术 防洪堤林带 河滩地防护林 农田防护林 环境绿化点
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Effects of climate factors on the height increment of poplar protec-tion forest in the riverbank field
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作者 李海梅 何兴元 王奎玲 《Journal of Forestry Research》 SCIE CAS CSCD 2004年第3期177-180,共4页
Based on the data of stand investigation and stem analysis, the effects of climate factors on the poplar protection forest increment in the riverbank field of the Dalinghe and Xiaolinghe rivers of Liaoning Province, C... Based on the data of stand investigation and stem analysis, the effects of climate factors on the poplar protection forest increment in the riverbank field of the Dalinghe and Xiaolinghe rivers of Liaoning Province, China were studied by step-wise regression procedure and grey system theories and methods. A regression model reflecting the correlation between the height increment of poplar protection forest and climatic factors was developed. The order of grey relevance for the effect of climatic factors on the height increment of poplar protection forest is: light>water>heat, and it could be interpreted that the poplar increment was mainly influenced by light factor, water factor, and heat factor. This result will provide scientific basis for the in-tensive cultivation and regeneration of the poplar protection forest in riverbank field in similar regions in China. 展开更多
关键词 Riverbank field Poplar protection forest Tree height Increment Climate factor
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