Poplars and willows for soil erosion control in New Zealand
Poplars and willows for soil erosion control in New Zealand
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DOI：
10.1016/s0961-9534(99)00007-0
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发表时间：
1999-01-01
影响因子：
6
通讯作者：
Wilkinson, AG
中科院分区：
文献类型：
--
作者：
Wilkinson, AG
杨树（Populus）和柳树（Salix）是新西兰的外来树种，在过去的160年里被引进和种植，用于控制牧场丘陵地区的土壤侵蚀、河岸保护、遮阳、防风林和林地林业。在20世纪60年代和70年代，在政府补贴的侵蚀控制计划中种植了200多万棵杨树。并对种植技术和模式进行了探讨。这种类型的补贴种植在20世纪80年代末和90年代下降，重点转移到土地管理系统，包括辐射松（Pinus radiata）造林，白杨林牧系统，以及各种植物组合，包括杨树和柳树用于河岸管理。为了防止土壤侵蚀造成的长期退化，需要在新西兰至少100万公顷的牧场上发展经济的林牧系统，新西兰的研究工作正在重新集中于获得必要的信息，以确保这是农民的一个可行的选择。(C)1999 Elsevier Science Ltd.保留所有权利。
Poplars (Populus) and willows (Salix) are exotic to New Zealand and have been introduced and cultivated over the last 160 years, for soil erosion control on pastoral hill country, riverbank protection, shade, windbreaks and woodlot forestry. During the 1960s and 1970s over two million poplars were planted in government-subsidised erosion control schemes. Planting techniques and patterns are discussed. This type of subsidised planting declined in the late 1980s and 1990s with the emphasis shifting to land management systems incorporating Radiata pine (Pinus radiata) afforestation, poplar silvipastoral systems, and various plant combinations including poplars and willows for riparian management. To prevent long-term degradation by soil erosion, there is a need to develop economic silvipastoral systems on at least one million hectares of New Zealand pastoral lands and the New Zealand research effort is refocusing on obtaining the necessary information to ensure this is a viable option for farmers. (C) 1999 Elsevier Science Ltd. All rights reserved.