کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10429226 | 909700 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spatial Heterogeneity and Variability of a Large-Scale Vegetation Community Using a Power-Law Model
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Spatial Heterogeneity and Variability of a Large-Scale Vegetation Community Using a Power-Law Model Spatial Heterogeneity and Variability of a Large-Scale Vegetation Community Using a Power-Law Model](/preview/png/10429226.png)
چکیده انگلیسی
Spatial heterogeneity and stability are fundamental indices for describing vegetation communities. The spatial distribution characteristics of the vegetation in Nenjiang region of northeastern China were evaluated using a variance power-law model. The data fits the model well with estimates given for the levels of heterogeneity for not only single species but also the community as a whole. The linear regression indicates that the species in the community exhibit a consistently organized spatial pattern, as is often discovered in field surveys but rarely seen in artificial systems. The species deviations from the regression line, which exhibit a leptokurtic distribution, may reflect the variability of the community. Thus, the model provides a general tool for management and regulation of ecosystems, especially where there is human disturbances.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tsinghua Science & Technology - Volume 10, Issue 4, August 2005, Pages 469-477
Journal: Tsinghua Science & Technology - Volume 10, Issue 4, August 2005, Pages 469-477
نویسندگان
Song (å®å¿è¿), Huang (é»å¤§æ), Shiyomi Masae, Wang (çæ±ç), Takahashi Shigeo, Yoshimichi Hori, Yamamuru Yasuo, Chen (é ä¿),