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Role of urban remnant evergreen broad-leaved forests on natural restoration of artificial forests in Chongqing metropolis 被引量:2
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作者 杨永川 李楠 《Journal of Central South University》 SCIE EI CAS 2009年第S1期276-281,共6页
The effects of urban remnant natural evergreen broad-leaved forest (EBLF) on the restoration of artificial pine forests surrounding it were studied with reference to species composition,biodiversity,dominant species a... The effects of urban remnant natural evergreen broad-leaved forest (EBLF) on the restoration of artificial pine forests surrounding it were studied with reference to species composition,biodiversity,dominant species and stand structure on Mt. Tieshanping in Chongqing metropolis,Southwest China. The seeds from the remnant EBLF naturally facilitate the restoration process of artificial Pinus massoniana forests near it. The similarity of species composition between the artificial Pinus massoniana forests and the remnant EBLF and biodiversity index of the artificial Pinus massoniana forests decrease as the distance from the remnant EBLF increases. Castanopsis carlesii var. spinusa is the dominant species in the ground vegetation,shrub layer and sub-tree layer of the Pinus massoniana forests near the remnant EBLF. However,the natural restoration processes of those farther away from the remnant EBLF are restricted for the absence of seed source of the inherent components of the remnant EBLF,and the anthropogenic measures should be taken to facilitate the restoration process. 展开更多
关键词 REMNANT VEGETATION evergreen broad-leaved forest SEED effect natural RESTORATION
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神农架海拔梯度上4种典型森林凋落物现存量及其养分循环动态 被引量:50
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作者 刘蕾 申国珍 +3 位作者 陈芳清 罗璐 谢宗强 喻杰 《生态学报》 CAS CSCD 北大核心 2012年第7期2142-2149,共8页
研究神农架地区典型森林凋落物现存量及其养分动态对认识我国北亚热带森林生态系统养分循环过程及森林碳循环的机理具有重要的参考价值。通过对神农架海拔梯度上4种典型森林常绿阔叶林、常绿落叶阔叶混交林、落叶阔叶林及亚高山针叶林... 研究神农架地区典型森林凋落物现存量及其养分动态对认识我国北亚热带森林生态系统养分循环过程及森林碳循环的机理具有重要的参考价值。通过对神农架海拔梯度上4种典型森林常绿阔叶林、常绿落叶阔叶混交林、落叶阔叶林及亚高山针叶林凋落物年凋落量及其养分归还量的研究,发现:森林凋落物量随海拔增加呈现先上升后降低的趋势,由低海拔到高海拔,凋落物年凋落量分别为6807.97、7118.14、6975.2和4250.67 kg/hm2。各森林类型凋落物量年变化呈双峰型,高峰期出现在4—5月份、11月份。凋落物养分归还以N最高(132.06、162.29、157.12和185.77 kg/hm2),以P最少(4.62、4.39、8.24和4.15 kg/hm2),养分归还总量随海拔高度增加而减少。 展开更多
关键词 海拔梯度 常绿阔叶林 常绿落叶阔叶混交林 落叶阔叶林 亚高山针叶林 凋落物现存量 养分归还
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