| 施俊美,李 静,赵玉堂.基于单株产量的大理州大泡核桃立地适宜性分析[J].林业调查规划,2025,50(1):17-23 |
| 基于单株产量的大理州大泡核桃立地适宜性分析 |
| Site Suitability of Juglans sigillata in Dali PrefectureBased on Individual Plant Yield |
| |
| DOI： |
| 中文关键词: 大泡核桃 立地适宜性 BP 神经网络 单株产量 大理州 |
| 英文关键词: Juglans sigillata site suitability BP neural network individual plant yield Dali Prefecturen |
| 基金项目: |
|
| 摘要点击次数: 362 |
| 全文下载次数: 387 |
| 中文摘要: |
| 依据大理州2010—2019年核桃产量调查数据,采用BP 神经网络分析方法,以地形、土壤、气候等多个自然环境因子以及与立地相关的人为因素作为输入层,以单位面积冠影核桃干果产量指数作为输出因子,对大泡核桃立地适宜性进行分析评价。结果表明,大理州大泡核桃种植地总面积212 699.2 hm2,其中立地适宜性等级为“好”的种植地面积54 751.4 hm2,等级为“中”的种植地面积
97 313.8 hm2,等级为“差”的种植地面积60 634.0 hm2。基于产量角度分析结果,大理州大泡核桃种植地块立地适宜性总体上处于中上等水平;立地适宜性评为“中”“差” 的面积占比高达74.3%,表明大理州大泡核桃种植地立地适宜性仍有很大的改善空间。 |
| 英文摘要: |
| Based on the walnut yield survey data in Dali Prefecture from 2010 to 2019, the multiple natural
environmental factors of terrain, soil and climate, and the human factors related to site were used as input
layers, and the yield index of dried walnut per unit area was used as output factor to analyze and evaluate
the site suitability of Juglans sigillata by the BP neural network analysis method. The results showed
that the total planting area of Juglans sigillata in Dali Prefecture was 212 699.2 hm2, with 54 751.4 hm2
of planting area classified as “good” for site suitability, 97 313.8 hm2 of planting area classified as “medium”,
and 60 634.0 hm2 of planting area classified as “poor”. Based on the analysis of yield, the overall
site suitability of Juglans sigillata planting in Dali Prefecture was at a medium to high level, with
74.3% of the area rated as “medium” or “poor” in terms of site suitability. This indicated that there was
still improvement space for the site suitability of Juglans sigillata planting in Dali Prefecture. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
