testIndex

Example data of test Indices for forest health evaluation system

Assessing forest ecosystem health is an effective way for forest
resource management.The national forest health evaluation system at the forest
stand level using analytic hierarchy process, has a high application value
and practical significance. The package can effectively and easily realize the
total assessment process, and help foresters to further assess and management
forest resources.

Zongzheng Chai

forestHES

Forest Health Evaluation System at the Forest Stand Level in
China

testIndex function

A data frame with 30 observations on the following 21 variables.<dl>
 <dt>c1</dt>
<dd>Tree diversity index</dd> <dt>c2</dt>
<dd>Shrub diversity index</dd> <dt>c3</dt>
<dd>Herb diversity index</dd> <dt>c4</dt>
<dd>Storey quantity</dd> <dt>c5</dt>
<dd>Tree size diversity index</dd> <dt>c6</dt>
<dd>Age structure</dd> <dt>c7</dt>
<dd>Canopy closure</dd> <dt>c8</dt>
<dd>Average volume increment per hectare</dd> <dt>c9</dt>
<dd>Bio-disaster ratio</dd> <dt>c10</dt>
<dd>Non bio-disaster ratio</dd> <dt>c11</dt>
<dd>Crown length ratio</dd> <dt>c12</dt>
<dd>Crown fade ratio</dd> <dt>c13</dt>
<dd>Foliage falling ratio</dd> <dt>c14</dt>
<dd>Regeneration density</dd> <dt>c15</dt>
<dd>Soil depth</dd> <dt>c16</dt>
<dd>Soil density</dd> <dt>c17</dt>
<dd>Soil pH</dd> <dt>c18</dt>
<dd>Soil organic matter</dd> <dt>c19</dt>
<dd>Soil total nitrogen</dd> <dt>c20</dt>
<dd>Soil available phosphorus</dd> <dt>c21</dt>
<dd>Soil available potassium</dd> 
</dl>

Format

Test Indices for forest health evaluation system — testIndex

A data frame with 30 observations on the following 21 variables.<dl>
 <dt>c1</dt>
<dd>Tree diversity index</dd>

 <dt>c2</dt>
<dd>Shrub diversity index</dd>

 <dt>c3</dt>
<dd>Herb diversity index</dd>

 <dt>c4</dt>
<dd>Storey quantity</dd>

 <dt>c5</dt>
<dd>Tree size diversity index</dd>

 <dt>c6</dt>
<dd>Age structure</dd>

 <dt>c7</dt>
<dd>Canopy closure</dd>

 <dt>c8</dt>
<dd>Average volume increment per hectare</dd>

 <dt>c9</dt>
<dd>Bio-disaster ratio</dd>

 <dt>c10</dt>
<dd>Non bio-disaster ratio</dd>

 <dt>c11</dt>
<dd>Crown length ratio</dd>

 <dt>c12</dt>
<dd>Crown fade ratio</dd>

 <dt>c13</dt>
<dd>Foliage falling ratio</dd>

 <dt>c14</dt>
<dd>Regeneration density</dd>

 <dt>c15</dt>
<dd>Soil depth</dd>

 <dt>c16</dt>
<dd>Soil density</dd>

 <dt>c17</dt>
<dd>Soil pH</dd>

 <dt>c18</dt>
<dd>Soil organic matter</dd>

 <dt>c19</dt>
<dd>Soil total nitrogen</dd>

 <dt>c20</dt>
<dd>Soil available phosphorus</dd>

 <dt>c21</dt>
<dd>Soil available potassium</dd>

 
</dl>

testIndex: Test Indices for forest health evaluation system

Description

Usage

Arguments

Format

Examples