Interspecific differences in the responses of root phosphatase activities and morphology to nitrogen and phosphorus fertilization in Bornean tropical rain forests

Soil organic phosphorus (P) compounds can be the main P source for plants in P‐limited tropical rainforests. Phosphorus occurs in diverse chemical forms, including monoester P, diester P, and phytate, which require enzymatic hydrolysis by phosphatase into inorganic P before assimilation by plants. The interactions between plant interspecific differences in organic P acquisition strategies via phosphatase activities with root morphological traits would lead to P resource partitioning, but they have not been rigorously evaluated. We measured the activities of three classes of phosphatases (phosphomonoesterase, PME; phosphodiesterase, PDE; and phytase, PhT), specific root length (SRL), root diameter, and root tissue density in mature tree species with different mycorrhizal associations (ectomycorrhizal [ECM] or arbuscular mycorrhizal [AM]) and different successional status (climax or pioneer species) in Sabah, Malaysia. We studied nitrogen (N)‐ and P‐fertilized plots to evaluate the acquis..., , , # Interspecific differences in the responses of root phosphatase activities and morphology to nitrogen and phosphorus fertilization in Bornean tropical rain forests

Dataset DOI: [https://doi.org/10.5061/dryad.905qfttm3](https://doi.org/10.5061/dryad.905qfttm3)

## Description of the data and file structure

This is supplementary data used for analysis in the paper entitled “Interspecific differences in the responses of root phosphatase activities and morphology to nitrogen and phosphorus fertilization in Bornean tropical rain forests”. The csv files include the information on species name and values of root phosphatases and morphology. There are some missing data because of limited sample availability, which are indicated as NA.

### Files and variables

#### File: Apase.csv and Morphology.csv

##### Variables

Common variable names:

* species: Species name of the sampled individual.
* treatment: fertilization treatment. C: control, N: N fertilization, P: P fertilization, NP: N and P...,

土壤有机磷（soil organic phosphorus, P）化合物可作为磷限制热带雨林中植物的主要磷源。磷以多种化学形态存在，包括单酯磷、二酯磷和植酸，这些形态需通过磷酸酶介导的酶解作用转化为无机磷后，方可被植物同化吸收。植物通过磷酸酶活性获取有机磷的种间差异，与根系形态性状之间的相互作用可能会引发磷资源的生态位分化，但该假说尚未得到严格验证。我们在马来西亚沙巴州的婆罗洲热带雨林中，针对不同菌根共生类型（外生菌根[ectomycorrhizal, ECM]或丛枝菌根[arbuscular mycorrhizal, AM]）以及不同演替状态（顶极种或先锋种）的成熟树种，测定了三类磷酸酶的活性：磷酸单酯酶（phosphomonoesterase, PME）、磷酸二酯酶（phosphodiesterase, PDE）和植酸酶（phytase, PhT），同时测定了比根长（specific root length, SRL）、根直径与根组织密度。我们设置了氮（N）、磷（P）施肥样地，以探究施肥对根系磷酸酶活性与形态的影响……

# 《婆罗洲热带雨林中根系磷酸酶活性与形态对氮磷施肥的种间响应差异》
数据集DOI：[https://doi.org/10.5061/dryad.905qfttm3](https://doi.org/10.5061/dryad.905qfttm3)

## 数据与文件结构说明
本数据集为上述论文分析所用的补充数据。CSV格式文件包含采样树种名称、根系磷酸酶活性及根系形态性状的相关信息。由于样本采集受限，部分数据存在缺失，以NA标记。

### 文件与变量
#### 文件：Apase.csv 与 Morphology.csv
##### 变量
通用变量名：
* species：采样个体的物种名称
* treatment：施肥处理类型，其中C为对照组、N为单施氮肥处理、P为单施磷肥处理、NP为氮磷配施处理……