> For the complete documentation index, see [llms.txt](https://isbm.savimbo.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://isbm.savimbo.com/methodology/zh-cn/fu-lu/fu-lumru-he-shou-gong-ji-suan-sheng-wu-duo-yang-xing-xin-yong.md).

# 附录M：如何手工计算生物多样性信用

生物多样性信用 *可以* 可手工计算，但由于数据在空间和时间上的重叠，出错概率较高。以下介绍如何使用免费的 Google Earth Engine Pro 软件并结合示例视频进行计算的简要说明。 

#### **1）获取您的核证区域 KML**

一个简单的 .kml 多边形的 [计入面积](/methodology/zh-cn/xiang-mu-miao-shu/xiang-mu-bian-jie/bcp-de-kong-jian-jie-xian.md) 可在您的 BCP 站点中使用地理坐标在 Google Earth Engine 软件上生成。 

{% embed url="<https://www.youtube.com/watch?v=_xlv_lkUr9o>" %}

#### 2）创建您的指示物种观测图层

为您的 [指示物种观测](/methodology/zh-cn/xiang-mu-miao-shu/shi-shi-ji-hua/zhi-shi-wu-zhong-guan-ce.md) 创建一个形状，其中圆的面积相当于该观测中该物种的家域范围。&#x20;

提示：对于手工计算，请选择时间上不重叠的观测，因为时间是手工求和最困难的部分。&#x20;

{% embed url="<https://youtu.be/_xlv_lkUr9o?si=noywAvuZU3NcbMyU&t=75>" %}

**3）计算核证面积**

手工绘制一个多边形，得到核证区域与观测区域的交集。该区域的公顷数乘以指示物种完整性得分，即为您的生物多样性信用数量。&#x20;

{% embed url="<https://youtu.be/_xlv_lkUr9o?si=ScYvY0V0JacNf2YR&t=195>" %}

**4）重叠观测**

&#x20;如 [计算](/methodology/zh-cn/ji-suan/wan-zheng-xing-ji-suan.md) 部分所述，日期相同且相互重叠的观测将具有合并后的核证区域。&#x20;

具有不同完整性得分的重叠观测在合并区域中应采用最高完整性得分。&#x20;

{% embed url="<https://youtu.be/_xlv_lkUr9o?si=9JYAA-G4qFICVM31&t=364>" %}


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