| 人工林地力衰退现状及防治对策 |
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| 引用本文： | 陈礼清,赵安玖,陈正清,万云. 人工林地力衰退现状及防治对策[J]. 林业调查规划, 2003, 28(1): 9-12 |
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| 作者姓名： | 陈礼清 赵安玖 陈正清 万云 |
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| 作者单位： | 1. 四川农业大学林学院,四川,雅安,625014
2. 四川旺苍县林业局,四川,旺苍,628200 |
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| 摘 要： | 通过对落叶松和杉木等人工林连栽作业引起地力衰退的研究表明，生物循环失调，栽培技术不当是引起人工林连栽地力衰退的主要原因。人工林地力衰退主要表现为土壤剖面逆向发育，土壤理化性质变差，有机质和养分状况恶化，人工林生产力下降等，指出调整林分结构、保护林下植被，营造混交林，科学经营是缓解人工林地力下降的重要措施。
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| 关 键 词： | 人工林地力衰退 防治对策 生物循环 |
| 文章编号： | 1671-3168(2003)01-0009-04 |
Land Capability Decline of Plantation and Its Control Strategy |
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| CHEN LI_qing ,ZHAO An'jiu ,CHEN Zheng_qing ,WANG Yun. Land Capability Decline of Plantation and Its Control Strategy[J]. Forest Inventory and Planning, 2003, 28(1): 9-12 |
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| Authors: | CHEN LI_qing ZHAO An'jiu CHEN Zheng_qing WANG Yun |
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| Affiliation: | CHEN LI_qing 1,ZHAO An'jiu 1,CHEN Zheng_qing 2,WANG Yun 2 |
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| Abstract: | The results of study on the land capability decline of continuous cropping of Larix and Cunninghamia lanceolata showed that the imbalance of bio_cycle and improper cultivation technology were the main causes of land capability decline of plantation. The land capability decline had a series of symptoms such as reverse development of soil profile, and the decline of both physical and chemical character, the deterioration of organic matter condition and the productivity decline of the plantation. It was pointed out that adjusting the stand structure, protecting the undergrowth, mixed planting and adopting the scientific management approaches were the main strategies to alleviate the land capability decline of plantation. |
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| Keywords: | land capability decline of plantation control strategy bio_cycle |
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